EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 1
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
Text Label 7950 4925 2    50   ~ 0
LSU_Ip
Text Label 7950 5025 2    50   ~ 0
LSU_Vm
Text Label 7950 5225 2    50   ~ 0
LSU_Un
Text Label 7950 5125 2    50   ~ 0
LSU_Rtrim
Text Label 3075 3700 2    50   ~ 0
LSU_Ip
$Comp
L Device:R R10
U 1 1 5EB087E2
P 3075 3475
F 0 "R10" H 3145 3521 50  0000 L CNN
F 1 "61.9" H 3145 3430 50  0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 3005 3475 50  0001 C CNN
F 3 "~" H 3075 3475 50  0001 C CNN
F 4 "C23092" H 3075 3475 50  0001 C CNN "LCSC"
	1    3075 3475
	1    0    0    -1  
$EndComp
Wire Wire Line
	3075 3325 3075 3250
Wire Wire Line
	3075 3625 3075 3700
Text Label 4000 1100 2    50   ~ 0
LSU_Vm
Text Notes 3100 3000 0    50   ~ 0
Pump Current Sense
$Comp
L Device:R R2
U 1 1 5EB0FC27
P 1100 1525
F 0 "R2" H 1170 1571 50  0000 L CNN
F 1 "10k" H 1170 1480 50  0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 1030 1525 50  0001 C CNN
F 3 "~" H 1100 1525 50  0001 C CNN
F 4 "C25744" H 1100 1525 50  0001 C CNN "LCSC"
	1    1100 1525
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR03
U 1 1 5EB10275
P 1100 1675
F 0 "#PWR03" H 1100 1425 50  0001 C CNN
F 1 "GND" H 1105 1502 50  0000 C CNN
F 2 "" H 1100 1675 50  0001 C CNN
F 3 "" H 1100 1675 50  0001 C CNN
	1    1100 1675
	1    0    0    -1  
$EndComp
Wire Wire Line
	1100 1175 1100 1275
Wire Wire Line
	1100 1275 1475 1275
Connection ~ 1100 1275
Wire Wire Line
	1100 1275 1100 1375
Wire Wire Line
	1475 1475 1400 1475
Wire Wire Line
	1400 1475 1400 1650
Wire Wire Line
	1400 1650 2150 1650
Wire Wire Line
	2150 1650 2150 1375
Wire Wire Line
	2150 1375 2075 1375
$Comp
L Device:C C1
U 1 1 5EB1294F
P 800 1525
F 0 "C1" H 915 1571 50  0000 L CNN
F 1 "1u" H 915 1480 50  0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 838 1375 50  0001 C CNN
F 3 "~" H 800 1525 50  0001 C CNN
F 4 "C52923" H 800 1525 50  0001 C CNN "LCSC"
	1    800  1525
	1    0    0    -1  
$EndComp
Wire Wire Line
	800  1375 800  1275
Wire Wire Line
	800  1275 1100 1275
$Comp
L power:GND #PWR01
U 1 1 5EB130B2
P 800 1675
F 0 "#PWR01" H 800 1425 50  0001 C CNN
F 1 "GND" H 805 1502 50  0000 C CNN
F 2 "" H 800 1675 50  0001 C CNN
F 3 "" H 800 1675 50  0001 C CNN
	1    800  1675
	1    0    0    -1  
$EndComp
Text Notes 1600 925  0    50   ~ 0
Virtual Ground Generation
$Comp
L Device:C C2
U 1 1 5EB2AA98
P 2850 5425
F 0 "C2" V 2598 5425 50  0000 C CNN
F 1 "100n" V 2689 5425 50  0000 C CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 2888 5275 50  0001 C CNN
F 3 "~" H 2850 5425 50  0001 C CNN
F 4 "C1525" H 2850 5425 50  0001 C CNN "LCSC"
	1    2850 5425
	-1   0    0    1   
$EndComp
$Comp
L Device:R R6
U 1 1 5EB2AF2C
P 2850 4975
F 0 "R6" V 2643 4975 50  0000 C CNN
F 1 "22k" V 2734 4975 50  0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 2780 4975 50  0001 C CNN
F 3 "~" H 2850 4975 50  0001 C CNN
F 4 "C25768" H 2850 4975 50  0001 C CNN "LCSC"
	1    2850 4975
	-1   0    0    1   
$EndComp
Wire Wire Line
	2850 5275 2850 5125
Text Notes 1125 4975 0    50   ~ 0
Nernst Internal Resistance Measurement
$Comp
L Device:R R11
U 1 1 5EB31C23
P 3775 3350
F 0 "R11" V 3675 3350 50  0000 C CNN
F 1 "10k" V 3775 3350 50  0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 3705 3350 50  0001 C CNN
F 3 "~" H 3775 3350 50  0001 C CNN
F 4 "C25744" H 3775 3350 50  0001 C CNN "LCSC"
	1    3775 3350
	0    1    1    0   
$EndComp
$Comp
L Device:R R12
U 1 1 5EB335A9
P 3775 3550
F 0 "R12" V 3875 3550 50  0000 C CNN
F 1 "10k" V 3775 3550 50  0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 3705 3550 50  0001 C CNN
F 3 "~" H 3775 3550 50  0001 C CNN
F 4 "C25744" H 3775 3550 50  0001 C CNN "LCSC"
	1    3775 3550
	0    1    1    0   
$EndComp
Wire Wire Line
	3925 3350 4000 3350
Wire Wire Line
	3625 3550 3350 3550
Wire Wire Line
	3350 3550 3350 3700
Wire Wire Line
	3350 3700 3075 3700
Wire Wire Line
	3075 3250 3350 3250
Wire Wire Line
	3350 3250 3350 3350
Wire Wire Line
	3350 3350 3625 3350
$Comp
L Device:R R15
U 1 1 5EB37011
P 3775 3875
F 0 "R15" V 3700 3825 50  0000 L CNN
F 1 "100k" V 3775 3800 50  0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 3705 3875 50  0001 C CNN
F 3 "~" H 3775 3875 50  0001 C CNN
F 4 "C25741" H 3775 3875 50  0001 C CNN "LCSC"
	1    3775 3875
	0    1    1    0   
$EndComp
Wire Wire Line
	3925 3875 4000 3875
$Comp
L Device:R R17
U 1 1 5EB38FC0
P 4350 2850
F 0 "R17" V 4250 2850 50  0000 C CNN
F 1 "100k" V 4350 2850 50  0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 4280 2850 50  0001 C CNN
F 3 "~" H 4350 2850 50  0001 C CNN
F 4 "C25741" H 4350 2850 50  0001 C CNN "LCSC"
	1    4350 2850
	0    1    1    0   
$EndComp
Wire Wire Line
	4200 2850 4000 2850
Wire Wire Line
	4000 2850 4000 3350
Connection ~ 4000 3350
Wire Wire Line
	4500 2850 4750 2850
Wire Wire Line
	4750 2850 4750 3450
Wire Wire Line
	4750 3450 4650 3450
Text Label 5225 3450 0    50   ~ 0
Ip_sense
Connection ~ 4750 3450
Text Notes 1100 2225 0    50   ~ 0
Pump Driver
Text Label 1100 2575 0    50   ~ 0
Ip_dac
$Comp
L Device:R R8
U 1 1 5EB3C02D
P 2550 2875
F 0 "R8" V 2450 2875 50  0000 C CNN
F 1 "47" V 2550 2875 50  0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 2480 2875 50  0001 C CNN
F 3 "~" H 2550 2875 50  0001 C CNN
F 4 "C25118" H 2550 2875 50  0001 C CNN "LCSC"
	1    2550 2875
	-1   0    0    1   
$EndComp
Wire Wire Line
	1775 2575 1850 2575
Wire Wire Line
	1700 2775 1775 2775
Text Label 3075 3250 2    50   ~ 0
LSU_Rtrim
$Comp
L power:+3.3V #PWR02
U 1 1 5EC0734A
P 1100 875
F 0 "#PWR02" H 1100 725 50  0001 C CNN
F 1 "+3.3V" H 1115 1048 50  0000 C CNN
F 2 "" H 1100 875 50  0001 C CNN
F 3 "" H 1100 875 50  0001 C CNN
	1    1100 875 
	1    0    0    -1  
$EndComp
$Comp
L Device:R R4
U 1 1 5EAE57CD
P 4300 1300
F 0 "R4" V 4200 1300 50  0000 C CNN
F 1 "10k" V 4300 1300 50  0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 4230 1300 50  0001 C CNN
F 3 "~" H 4300 1300 50  0001 C CNN
F 4 "C25744" H 4300 1300 50  0001 C CNN "LCSC"
	1    4300 1300
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R3
U 1 1 5EAE6382
P 4300 1100
F 0 "R3" V 4375 1100 50  0000 C CNN
F 1 "10k" V 4300 1100 50  0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 4230 1100 50  0001 C CNN
F 3 "~" H 4300 1100 50  0001 C CNN
F 4 "C25744" H 4300 1100 50  0001 C CNN "LCSC"
	1    4300 1100
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R7
U 1 1 5EAE6724
P 4950 825
F 0 "R7" V 5050 825 50  0000 C CNN
F 1 "27k" V 4950 825 50  0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 4880 825 50  0001 C CNN
F 3 "~" H 4950 825 50  0001 C CNN
F 4 "C25771" H 4950 825 50  0001 C CNN "LCSC"
	1    4950 825 
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R5
U 1 1 5EAE6A5D
P 4300 1550
F 0 "R5" V 4400 1500 50  0000 L CNN
F 1 "27k" V 4300 1475 50  0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 4230 1550 50  0001 C CNN
F 3 "~" H 4300 1550 50  0001 C CNN
F 4 "C25771" H 4300 1550 50  0001 C CNN "LCSC"
	1    4300 1550
	0    1    1    0   
$EndComp
Wire Wire Line
	4550 1550 4450 1550
Wire Wire Line
	4650 1100 4550 1100
$Comp
L power:GND #PWR04
U 1 1 5EAEDFB7
P 4150 1550
F 0 "#PWR04" H 4150 1300 50  0001 C CNN
F 1 "GND" H 4155 1377 50  0000 C CNN
F 2 "" H 4150 1550 50  0001 C CNN
F 3 "" H 4150 1550 50  0001 C CNN
	1    4150 1550
	0    1    1    0   
$EndComp
Wire Wire Line
	4550 1100 4550 825 
Wire Wire Line
	4550 825  4800 825 
Connection ~ 4550 1100
Wire Wire Line
	4550 1100 4450 1100
Wire Wire Line
	4000 1100 4150 1100
Wire Wire Line
	5100 825  5350 825 
Wire Wire Line
	5350 825  5350 1200
Wire Wire Line
	5350 1200 5250 1200
Wire Wire Line
	4000 1300 4150 1300
Text Label 5475 1200 0    50   ~ 0
Un_sense
Wire Wire Line
	5475 1200 5350 1200
Connection ~ 5350 1200
Text Notes 3800 900  0    50   ~ 0
Nernst Sense
Text Notes 3950 1825 0    50   ~ 0
Un_sense = 2.7 * (Un - Vm)
Text Notes 3250 4050 0    50   ~ 0
Ip_sense = 10 * (LSU_Ip - LSU_Rtrim)
Wire Wire Line
	4450 1300 4550 1300
Wire Wire Line
	4550 1550 4550 1300
Connection ~ 4550 1300
Wire Wire Line
	4550 1300 4650 1300
$Comp
L Device:R R9
U 1 1 5EB371DE
P 2450 1375
F 0 "R9" V 2350 1375 50  0000 C CNN
F 1 "10" V 2450 1375 50  0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 2380 1375 50  0001 C CNN
F 3 "~" H 2450 1375 50  0001 C CNN
F 4 "C25077" H 2450 1375 50  0001 C CNN "LCSC"
	1    2450 1375
	0    1    1    0   
$EndComp
Wire Wire Line
	2300 1375 2150 1375
Connection ~ 2150 1375
Wire Wire Line
	3025 1375 2900 1375
Text Label 2150 1375 0    50   ~ 0
Vm
Text Label 3025 1375 0    50   ~ 0
LSU_Vm
Text Label 3450 3875 0    50   ~ 0
Vm
$Comp
L Device:C C4
U 1 1 5EB43469
P 2900 1600
F 0 "C4" H 3015 1646 50  0000 L CNN
F 1 "1u" H 3015 1555 50  0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 2938 1450 50  0001 C CNN
F 3 "~" H 2900 1600 50  0001 C CNN
F 4 "C52923" H 2900 1600 50  0001 C CNN "LCSC"
	1    2900 1600
	1    0    0    -1  
$EndComp
Wire Wire Line
	2900 1450 2900 1375
Connection ~ 2900 1375
Wire Wire Line
	2900 1375 2600 1375
$Comp
L power:GND #PWR08
U 1 1 5EB4A413
P 2900 1750
F 0 "#PWR08" H 2900 1500 50  0001 C CNN
F 1 "GND" H 2905 1577 50  0000 C CNN
F 2 "" H 2900 1750 50  0001 C CNN
F 3 "" H 2900 1750 50  0001 C CNN
	1    2900 1750
	1    0    0    -1  
$EndComp
Text Label 5675 5050 0    50   ~ 0
heater_pwm
Text Label 2850 4100 3    50   ~ 0
Nernst_esr_drive
$Comp
L Device:C C8
U 1 1 5EE11FA8
P 8800 5900
F 0 "C8" H 8915 5946 50  0000 L CNN
F 1 "100n" H 8915 5855 50  0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 8838 5750 50  0001 C CNN
F 3 "~" H 8800 5900 50  0001 C CNN
F 4 "C1525" H 8800 5900 50  0001 C CNN "LCSC"
	1    8800 5900
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR024
U 1 1 5EE1273E
P 8800 6050
F 0 "#PWR024" H 8800 5800 50  0001 C CNN
F 1 "GND" H 8805 5877 50  0000 C CNN
F 2 "" H 8800 6050 50  0001 C CNN
F 3 "" H 8800 6050 50  0001 C CNN
	1    8800 6050
	1    0    0    -1  
$EndComp
Wire Wire Line
	8800 5650 8800 5750
$Comp
L power:+5V #PWR023
U 1 1 5EE1C6FE
P 8800 5575
F 0 "#PWR023" H 8800 5425 50  0001 C CNN
F 1 "+5V" H 8800 5725 50  0000 C CNN
F 2 "" H 8800 5575 50  0001 C CNN
F 3 "" H 8800 5575 50  0001 C CNN
	1    8800 5575
	1    0    0    -1  
$EndComp
Wire Wire Line
	8800 5575 8800 5650
Connection ~ 8800 5650
$Comp
L Regulator_Linear:XC6206PxxxMR U9
U 1 1 5EE22A9A
P 9425 5650
F 0 "U9" H 9425 5892 50  0000 C CNN
F 1 "XC6206P332MR" H 9425 5801 50  0000 C CNN
F 2 "Package_TO_SOT_SMD:SOT-23" H 9425 5875 50  0001 C CIN
F 3 "https://www.torexsemi.com/file/xc6206/XC6206.pdf" H 9425 5650 50  0001 C CNN
F 4 "C5446" H 9425 5650 50  0001 C CNN "LCSC"
	1    9425 5650
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR026
U 1 1 5EE2366B
P 9425 5950
F 0 "#PWR026" H 9425 5700 50  0001 C CNN
F 1 "GND" H 9430 5777 50  0000 C CNN
F 2 "" H 9425 5950 50  0001 C CNN
F 3 "" H 9425 5950 50  0001 C CNN
	1    9425 5950
	1    0    0    -1  
$EndComp
Wire Wire Line
	9125 5650 8800 5650
$Comp
L Device:C C10
U 1 1 5EE2E051
P 9825 5875
F 0 "C10" H 9940 5921 50  0000 L CNN
F 1 "4.7u" H 9940 5830 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 9863 5725 50  0001 C CNN
F 3 "~" H 9825 5875 50  0001 C CNN
F 4 "C19666" H 9825 5875 50  0001 C CNN "LCSC"
	1    9825 5875
	1    0    0    -1  
$EndComp
Wire Wire Line
	9825 5725 9825 5650
Wire Wire Line
	9825 5650 9725 5650
$Comp
L power:GND #PWR027
U 1 1 5EE3397B
P 9825 6025
F 0 "#PWR027" H 9825 5775 50  0001 C CNN
F 1 "GND" H 9830 5852 50  0000 C CNN
F 2 "" H 9825 6025 50  0001 C CNN
F 3 "" H 9825 6025 50  0001 C CNN
	1    9825 6025
	1    0    0    -1  
$EndComp
$Comp
L power:+3.3V #PWR028
U 1 1 5EE33CD0
P 9975 5575
F 0 "#PWR028" H 9975 5425 50  0001 C CNN
F 1 "+3.3V" H 9990 5748 50  0000 C CNN
F 2 "" H 9975 5575 50  0001 C CNN
F 3 "" H 9975 5575 50  0001 C CNN
	1    9975 5575
	1    0    0    -1  
$EndComp
Wire Wire Line
	9975 5575 9975 5650
Wire Wire Line
	9975 5650 9825 5650
Connection ~ 9825 5650
$Comp
L Device:R R22
U 1 1 5EF622BF
P 3550 5425
F 0 "R22" V 3450 5425 50  0000 C CNN
F 1 "20k" V 3550 5425 50  0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 3480 5425 50  0001 C CNN
F 3 "~" H 3550 5425 50  0001 C CNN
F 4 "C25765" H 3550 5425 50  0001 C CNN "LCSC"
	1    3550 5425
	-1   0    0    1   
$EndComp
Text Label 4175 5675 2    50   ~ 0
LSU_Un
Text Label 1825 5775 2    50   ~ 0
LSU_Un_sense
Wire Wire Line
	1300 5775 1900 5775
Wire Wire Line
	1900 5775 1975 6025
Wire Wire Line
	1975 6025 2800 6025
Wire Wire Line
	2800 6025 2800 5875
Wire Wire Line
	2800 5875 2750 5875
Wire Wire Line
	1900 5775 2150 5775
Text Label 4000 1300 2    50   ~ 0
LSU_Un_sense
Text Notes 2000 6100 0    50   ~ 0
Nernst Sense Voltage Buffer
$Comp
L Amplifier_Operational:MCP6004 U1
U 2 1 5F8841DC
P 4950 1200
F 0 "U1" H 5100 1450 50  0000 C CNN
F 1 "MCP6004" H 5125 1350 50  0000 C CNN
F 2 "Package_SO:TSSOP-14_4.4x5mm_P0.65mm" H 4900 1300 50  0001 C CNN
F 3 "http://ww1.microchip.com/downloads/en/DeviceDoc/21733j.pdf" H 5000 1400 50  0001 C CNN
F 4 "C50282" H 4950 1200 50  0001 C CNN "LCSC"
	2    4950 1200
	1    0    0    1   
$EndComp
$Comp
L Amplifier_Operational:MCP6004 U1
U 1 1 5F8980DF
P 2150 2675
F 0 "U1" H 2125 2900 50  0000 C CNN
F 1 "MCP6004" H 2150 2450 50  0000 C CNN
F 2 "Package_SO:TSSOP-14_4.4x5mm_P0.65mm" H 2100 2775 50  0001 C CNN
F 3 "http://ww1.microchip.com/downloads/en/DeviceDoc/21733j.pdf" H 2200 2875 50  0001 C CNN
F 4 "C50282" H 2150 2675 50  0001 C CNN "LCSC"
	1    2150 2675
	1    0    0    1   
$EndComp
Wire Wire Line
	4000 3350 4050 3350
$Comp
L Amplifier_Operational:MCP6004 U1
U 4 1 5F8B9D88
P 1775 1375
F 0 "U1" H 1925 1625 50  0000 C CNN
F 1 "MCP6004" H 1950 1525 50  0000 C CNN
F 2 "Package_SO:TSSOP-14_4.4x5mm_P0.65mm" H 1725 1475 50  0001 C CNN
F 3 "http://ww1.microchip.com/downloads/en/DeviceDoc/21733j.pdf" H 1825 1575 50  0001 C CNN
F 4 "C50282" H 1775 1375 50  0001 C CNN "LCSC"
	4    1775 1375
	1    0    0    -1  
$EndComp
Connection ~ 1900 5775
Wire Wire Line
	2850 4100 2850 4825
Text Label 8600 2000 2    50   ~ 0
Ip_sense
Wire Wire Line
	7525 1025 7525 925 
$Comp
L Device:R R23
U 1 1 5F9F80F6
P 7525 1175
F 0 "R23" H 7525 1325 50  0000 L CNN
F 1 "33" V 7525 1125 50  0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 7455 1175 50  0001 C CNN
F 3 "~" H 7525 1175 50  0001 C CNN
F 4 "C25105" H 7525 1175 50  0001 C CNN "LCSC"
	1    7525 1175
	1    0    0    -1  
$EndComp
Wire Wire Line
	7925 925  8250 925 
Connection ~ 7925 925 
Wire Wire Line
	7925 925  7925 1000
Wire Wire Line
	8250 925  8250 1000
$Comp
L power:GND #PWR025
U 1 1 5F9D42D5
P 8250 1300
F 0 "#PWR025" H 8250 1050 50  0001 C CNN
F 1 "GND" H 8255 1127 50  0000 C CNN
F 2 "" H 8250 1300 50  0001 C CNN
F 3 "" H 8250 1300 50  0001 C CNN
	1    8250 1300
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR022
U 1 1 5F9C8951
P 7925 1300
F 0 "#PWR022" H 7925 1050 50  0001 C CNN
F 1 "GND" H 7930 1127 50  0000 C CNN
F 2 "" H 7925 1300 50  0001 C CNN
F 3 "" H 7925 1300 50  0001 C CNN
	1    7925 1300
	1    0    0    -1  
$EndComp
$Comp
L Device:C C9
U 1 1 5F9C7CF3
P 8250 1150
F 0 "C9" H 8365 1196 50  0000 L CNN
F 1 "100n" H 8365 1105 50  0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 8288 1000 50  0001 C CNN
F 3 "~" H 8250 1150 50  0001 C CNN
F 4 "C1525" H 8250 1150 50  0001 C CNN "LCSC"
	1    8250 1150
	1    0    0    -1  
$EndComp
$Comp
L Device:C C7
U 1 1 5F9C6F22
P 7925 1150
F 0 "C7" H 8040 1196 50  0000 L CNN
F 1 "1u" H 8040 1105 50  0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 7963 1000 50  0001 C CNN
F 3 "~" H 7925 1150 50  0001 C CNN
F 4 "C52923" H 7925 1150 50  0001 C CNN "LCSC"
	1    7925 1150
	1    0    0    -1  
$EndComp
$Comp
L power:+3.3V #PWR020
U 1 1 5F989EEA
P 7300 1425
F 0 "#PWR020" H 7300 1275 50  0001 C CNN
F 1 "+3.3V" H 7315 1598 50  0000 C CNN
F 2 "" H 7300 1425 50  0001 C CNN
F 3 "" H 7300 1425 50  0001 C CNN
	1    7300 1425
	1    0    0    -1  
$EndComp
$Comp
L Device:C C11
U 1 1 5FE80F0F
P 5225 3675
F 0 "C11" H 5340 3721 50  0000 L CNN
F 1 "100n" H 5340 3630 50  0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 5263 3525 50  0001 C CNN
F 3 "~" H 5225 3675 50  0001 C CNN
F 4 "C1525" H 5225 3675 50  0001 C CNN "LCSC"
	1    5225 3675
	-1   0    0    -1  
$EndComp
$Comp
L Device:R R24
U 1 1 5FE81AAB
P 5000 3450
F 0 "R24" V 4793 3450 50  0000 C CNN
F 1 "3.3k" V 4884 3450 50  0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 4930 3450 50  0001 C CNN
F 3 "~" H 5000 3450 50  0001 C CNN
F 4 "C25890" H 5000 3450 50  0001 C CNN "LCSC"
	1    5000 3450
	0    -1   1    0   
$EndComp
$Comp
L power:GND #PWR0106
U 1 1 5FE88E31
P 5225 3825
F 0 "#PWR0106" H 5225 3575 50  0001 C CNN
F 1 "GND" H 5230 3652 50  0000 C CNN
F 2 "" H 5225 3825 50  0001 C CNN
F 3 "" H 5225 3825 50  0001 C CNN
	1    5225 3825
	-1   0    0    -1  
$EndComp
Wire Wire Line
	5225 3525 5225 3450
Wire Wire Line
	5225 3450 5150 3450
Text Label 8600 2900 2    50   ~ 0
CAN_RX
Wire Wire Line
	8600 2900 8125 2900
Wire Wire Line
	8125 3000 8600 3000
Text Label 8600 3000 2    50   ~ 0
CAN_TX
Wire Wire Line
	8125 1800 8600 1800
Text Label 8600 1800 2    50   ~ 0
Un_sense
Text Label 7725 925  0    50   ~ 0
VDDA
$Comp
L Device:R R25
U 1 1 600E2EC0
P 6575 5050
F 0 "R25" V 6475 5050 50  0000 C CNN
F 1 "1k" V 6575 5050 50  0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 6505 5050 50  0001 C CNN
F 3 "~" H 6575 5050 50  0001 C CNN
F 4 "C11702" V 6575 5050 50  0001 C CNN "LCSC"
	1    6575 5050
	0    1    1    0   
$EndComp
$Comp
L Device:R R26
U 1 1 600E5D60
P 6375 5275
F 0 "R26" V 6275 5275 50  0000 C CNN
F 1 "1k" V 6375 5275 50  0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 6305 5275 50  0001 C CNN
F 3 "~" H 6375 5275 50  0001 C CNN
F 4 "C11702" V 6375 5275 50  0001 C CNN "LCSC"
	1    6375 5275
	-1   0    0    1   
$EndComp
Wire Wire Line
	5675 5050 6050 5050
$Comp
L power:GND #PWR0107
U 1 1 6010ED98
P 6375 5425
F 0 "#PWR0107" H 6375 5175 50  0001 C CNN
F 1 "GND" H 6380 5252 50  0000 C CNN
F 2 "" H 6375 5425 50  0001 C CNN
F 3 "" H 6375 5425 50  0001 C CNN
	1    6375 5425
	1    0    0    -1  
$EndComp
$Comp
L Device:C C13
U 1 1 60140604
P 10375 2450
F 0 "C13" H 10490 2496 50  0000 L CNN
F 1 "100n" H 10490 2405 50  0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 10413 2300 50  0001 C CNN
F 3 "~" H 10375 2450 50  0001 C CNN
F 4 "C1525" H 10375 2450 50  0001 C CNN "LCSC"
	1    10375 2450
	1    0    0    -1  
$EndComp
$Comp
L Device:C C12
U 1 1 6014129F
P 9925 2450
F 0 "C12" H 10040 2496 50  0000 L CNN
F 1 "100n" H 10040 2405 50  0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 9963 2300 50  0001 C CNN
F 3 "~" H 9925 2450 50  0001 C CNN
F 4 "C1525" H 9925 2450 50  0001 C CNN "LCSC"
	1    9925 2450
	1    0    0    -1  
$EndComp
$Comp
L power:+3.3V #PWR0109
U 1 1 6014191D
P 10375 2300
F 0 "#PWR0109" H 10375 2150 50  0001 C CNN
F 1 "+3.3V" H 10390 2473 50  0000 C CNN
F 2 "" H 10375 2300 50  0001 C CNN
F 3 "" H 10375 2300 50  0001 C CNN
	1    10375 2300
	1    0    0    -1  
$EndComp
$Comp
L power:+3.3V #PWR0110
U 1 1 60141F92
P 9925 2300
F 0 "#PWR0110" H 9925 2150 50  0001 C CNN
F 1 "+3.3V" H 9940 2473 50  0000 C CNN
F 2 "" H 9925 2300 50  0001 C CNN
F 3 "" H 9925 2300 50  0001 C CNN
	1    9925 2300
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0111
U 1 1 60142538
P 9925 2600
F 0 "#PWR0111" H 9925 2350 50  0001 C CNN
F 1 "GND" H 9930 2427 50  0000 C CNN
F 2 "" H 9925 2600 50  0001 C CNN
F 3 "" H 9925 2600 50  0001 C CNN
	1    9925 2600
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0112
U 1 1 6014344C
P 10375 2600
F 0 "#PWR0112" H 10375 2350 50  0001 C CNN
F 1 "GND" H 10380 2427 50  0000 C CNN
F 2 "" H 10375 2600 50  0001 C CNN
F 3 "" H 10375 2600 50  0001 C CNN
	1    10375 2600
	1    0    0    -1  
$EndComp
Text Label 10125 4950 0    50   ~ 0
CAN_RX
Wire Wire Line
	10125 4950 10625 4950
Wire Wire Line
	10625 5050 10125 5050
Text Label 10125 5050 0    50   ~ 0
CAN_TX
$Comp
L power:GND #PWR0113
U 1 1 6017DEC5
P 10625 4650
F 0 "#PWR0113" H 10625 4400 50  0001 C CNN
F 1 "GND" V 10630 4522 50  0000 R CNN
F 2 "" H 10625 4650 50  0001 C CNN
F 3 "" H 10625 4650 50  0001 C CNN
	1    10625 4650
	0    1    1    0   
$EndComp
$Comp
L Connector_Generic:Conn_01x08 J3
U 1 1 601805CA
P 10825 4850
F 0 "J3" H 10905 4842 50  0000 L CNN
F 1 "Conn_01x08" H 10905 4751 50  0001 L CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical" H 10825 4850 50  0001 C CNN
F 3 "~" H 10825 4850 50  0001 C CNN
	1    10825 4850
	1    0    0    -1  
$EndComp
$Comp
L power:+5V #PWR0114
U 1 1 601930C4
P 10625 4550
F 0 "#PWR0114" H 10625 4400 50  0001 C CNN
F 1 "+5V" H 10625 4700 50  0000 C CNN
F 2 "" H 10625 4550 50  0001 C CNN
F 3 "" H 10625 4550 50  0001 C CNN
	1    10625 4550
	0    -1   -1   0   
$EndComp
Text Label 8600 2500 2    50   ~ 0
heater_pwm
Wire Wire Line
	8600 2500 8125 2500
Wire Wire Line
	7950 5225 8375 5225
Wire Wire Line
	8375 5125 7950 5125
Wire Wire Line
	7950 5025 8375 5025
Wire Wire Line
	8375 4925 7950 4925
$Comp
L power:PWR_FLAG #FLG0101
U 1 1 602CF71B
P 8800 5650
F 0 "#FLG0101" H 8800 5725 50  0001 C CNN
F 1 "PWR_FLAG" V 8800 5777 50  0001 L CNN
F 2 "" H 8800 5650 50  0001 C CNN
F 3 "~" H 8800 5650 50  0001 C CNN
	1    8800 5650
	0    -1   -1   0   
$EndComp
$Comp
L Device:LED D1
U 1 1 602E44AE
P 6050 5575
F 0 "D1" V 6150 5500 50  0000 R CNN
F 1 "RED" V 6050 5500 50  0000 R CNN
F 2 "LED_SMD:LED_0603_1608Metric" H 6050 5575 50  0001 C CNN
F 3 "~" H 6050 5575 50  0001 C CNN
F 4 "C2286" H 6050 5575 50  0001 C CNN "LCSC"
	1    6050 5575
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R27
U 1 1 602E6AD0
P 6050 5275
F 0 "R27" V 5950 5275 50  0000 C CNN
F 1 "1k" V 6050 5275 50  0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 5980 5275 50  0001 C CNN
F 3 "~" H 6050 5275 50  0001 C CNN
F 4 "C11702" V 6050 5275 50  0001 C CNN "LCSC"
	1    6050 5275
	-1   0    0    1   
$EndComp
Wire Wire Line
	6050 5125 6050 5050
Connection ~ 6050 5050
$Comp
L power:GND #PWR0118
U 1 1 602F94C3
P 6050 5725
F 0 "#PWR0118" H 6050 5475 50  0001 C CNN
F 1 "GND" H 6055 5552 50  0000 C CNN
F 2 "" H 6050 5725 50  0001 C CNN
F 3 "" H 6050 5725 50  0001 C CNN
	1    6050 5725
	1    0    0    -1  
$EndComp
Wire Wire Line
	7525 1600 7525 1475
Text Label 8600 1900 2    50   ~ 0
LSU_Vm
Wire Wire Line
	8600 1900 8125 1900
Wire Wire Line
	7300 1475 7300 1425
Text Label 8600 2400 2    50   ~ 0
Ip_dac
$Comp
L power:PWR_FLAG #FLG0102
U 1 1 60745395
P 7525 925
F 0 "#FLG0102" H 7525 1000 50  0001 C CNN
F 1 "PWR_FLAG" H 7275 1000 50  0001 C CNN
F 2 "" H 7525 925 50  0001 C CNN
F 3 "~" H 7525 925 50  0001 C CNN
	1    7525 925 
	1    0    0    -1  
$EndComp
Connection ~ 7525 925 
$Comp
L power:GND #PWR0121
U 1 1 60746A78
P 8575 6050
F 0 "#PWR0121" H 8575 5800 50  0001 C CNN
F 1 "GND" H 8580 5877 50  0000 C CNN
F 2 "" H 8575 6050 50  0001 C CNN
F 3 "" H 8575 6050 50  0001 C CNN
	1    8575 6050
	1    0    0    -1  
$EndComp
$Comp
L power:PWR_FLAG #FLG0103
U 1 1 60746E03
P 8575 6050
F 0 "#FLG0103" H 8575 6125 50  0001 C CNN
F 1 "PWR_FLAG" V 8575 6177 50  0001 L CNN
F 2 "" H 8575 6050 50  0001 C CNN
F 3 "~" H 8575 6050 50  0001 C CNN
	1    8575 6050
	1    0    0    -1  
$EndComp
$Comp
L Device:LED D2
U 1 1 607B4B99
P 9975 3525
F 0 "D2" H 10025 3425 50  0000 R CNN
F 1 "GREEN" H 10100 3625 50  0000 R CNN
F 2 "LED_SMD:LED_0603_1608Metric" H 9975 3525 50  0001 C CNN
F 3 "~" H 9975 3525 50  0001 C CNN
F 4 "C72043" H 9975 3525 50  0001 C CNN "LCSC"
	1    9975 3525
	-1   0    0    1   
$EndComp
$Comp
L Device:R R30
U 1 1 607B4BA0
P 10275 3525
F 0 "R30" V 10175 3525 50  0000 C CNN
F 1 "1k" V 10275 3525 50  0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 10205 3525 50  0001 C CNN
F 3 "~" H 10275 3525 50  0001 C CNN
F 4 "C11702" V 10275 3525 50  0001 C CNN "LCSC"
	1    10275 3525
	0    1    1    0   
$EndComp
$Comp
L power:GND #PWR0122
U 1 1 607B4BA6
P 10425 3525
F 0 "#PWR0122" H 10425 3275 50  0001 C CNN
F 1 "GND" H 10430 3352 50  0000 C CNN
F 2 "" H 10425 3525 50  0001 C CNN
F 3 "" H 10425 3525 50  0001 C CNN
	1    10425 3525
	0    -1   -1   0   
$EndComp
Connection ~ 9975 5650
$Comp
L Device:R R1
U 1 1 5EB0F879
P 1100 1025
F 0 "R1" H 1170 1071 50  0000 L CNN
F 1 "10k" H 1170 980 50  0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 1030 1025 50  0001 C CNN
F 3 "~" H 1100 1025 50  0001 C CNN
F 4 "C25744" H 1100 1025 50  0001 C CNN "LCSC"
	1    1100 1025
	1    0    0    -1  
$EndComp
$Comp
L Device:R R33
U 1 1 5F6F3B55
P 2100 2200
F 0 "R33" V 2200 2150 50  0000 L CNN
F 1 "10k" V 2100 2125 50  0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 2030 2200 50  0001 C CNN
F 3 "~" H 2100 2200 50  0001 C CNN
F 4 "C25744" H 2100 2200 50  0001 C CNN "LCSC"
	1    2100 2200
	0    1    1    0   
$EndComp
$Comp
L Device:R R34
U 1 1 5F6F4038
P 2100 3075
F 0 "R34" V 2200 3025 50  0000 L CNN
F 1 "10k" V 2100 3000 50  0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 2030 3075 50  0001 C CNN
F 3 "~" H 2100 3075 50  0001 C CNN
F 4 "C25744" H 2100 3075 50  0001 C CNN "LCSC"
	1    2100 3075
	0    1    1    0   
$EndComp
Wire Wire Line
	2550 2725 2550 2675
Wire Wire Line
	2550 2675 2450 2675
Wire Wire Line
	2250 3075 2550 3075
Wire Wire Line
	2550 3075 2550 3025
Wire Wire Line
	1950 3075 1775 3075
Wire Wire Line
	1775 3075 1775 2775
Connection ~ 1775 2775
Wire Wire Line
	1775 2775 1850 2775
Wire Wire Line
	2250 2200 2350 2200
Wire Wire Line
	2550 2200 2550 2675
Connection ~ 2550 2675
Wire Wire Line
	1775 2200 1850 2200
Wire Wire Line
	1775 2200 1775 2575
$Comp
L Device:R R32
U 1 1 5F77EEDE
P 1550 2775
F 0 "R32" V 1650 2775 50  0000 C CNN
F 1 "68k" V 1550 2775 50  0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 1480 2775 50  0001 C CNN
F 3 "~" H 1550 2775 50  0001 C CNN
F 4 "C36871" H 1550 2775 50  0001 C CNN "LCSC"
	1    1550 2775
	0    1    1    0   
$EndComp
$Comp
L Device:R R31
U 1 1 5F77F74C
P 1550 2575
F 0 "R31" V 1650 2575 50  0000 C CNN
F 1 "68k" V 1550 2575 50  0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 1480 2575 50  0001 C CNN
F 3 "~" H 1550 2575 50  0001 C CNN
F 4 "C36871" H 1550 2575 50  0001 C CNN "LCSC"
	1    1550 2575
	0    -1   -1   0   
$EndComp
Wire Wire Line
	1700 2575 1775 2575
Connection ~ 1775 2575
Text Label 1100 2775 0    50   ~ 0
Vm
Wire Wire Line
	3075 3075 3075 3250
Connection ~ 3075 3250
Wire Wire Line
	1100 2775 1400 2775
Wire Wire Line
	1100 2575 1400 2575
$Comp
L Device:C C3
U 1 1 5F942576
P 2100 2000
F 0 "C3" V 1848 2000 50  0000 C CNN
F 1 "33n" V 1939 2000 50  0000 C CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 2138 1850 50  0001 C CNN
F 3 "~" H 2100 2000 50  0001 C CNN
F 4 "C1585" H 2100 2000 50  0001 C CNN "LCSC"
	1    2100 2000
	0    1    1    0   
$EndComp
Wire Wire Line
	1950 2000 1850 2000
Wire Wire Line
	1850 2000 1850 2200
Connection ~ 1850 2200
Wire Wire Line
	1850 2200 1950 2200
Wire Wire Line
	2250 2000 2350 2000
Wire Wire Line
	2350 2000 2350 2200
Connection ~ 2350 2200
Wire Wire Line
	2350 2200 2550 2200
Wire Wire Line
	3925 3550 4000 3550
Wire Wire Line
	3450 3875 3625 3875
Wire Wire Line
	4000 3550 4000 3875
Connection ~ 4000 3550
Wire Wire Line
	4000 3550 4050 3550
Wire Wire Line
	8600 2400 8125 2400
Wire Wire Line
	4750 3450 4850 3450
Wire Wire Line
	8125 2000 8600 2000
Text Label 10250 4850 0    50   ~ 0
UART_RX
Text Label 10250 4750 0    50   ~ 0
UART_TX
Wire Wire Line
	10625 4750 10250 4750
Wire Wire Line
	10250 4850 10625 4850
Text Label 8625 2800 2    50   ~ 0
UART_RX
Wire Wire Line
	8125 2800 8625 2800
$Comp
L power:GND #PWR0117
U 1 1 602BD8DF
P 1475 7375
F 0 "#PWR0117" H 1475 7125 50  0001 C CNN
F 1 "GND" H 1480 7202 50  0000 C CNN
F 2 "" H 1475 7375 50  0001 C CNN
F 3 "" H 1475 7375 50  0001 C CNN
	1    1475 7375
	1    0    0    -1  
$EndComp
$Comp
L power:+3.3V #PWR0116
U 1 1 602BD44D
P 1475 7075
F 0 "#PWR0116" H 1475 6925 50  0001 C CNN
F 1 "+3.3V" H 1490 7248 50  0000 C CNN
F 2 "" H 1475 7075 50  0001 C CNN
F 3 "" H 1475 7075 50  0001 C CNN
	1    1475 7075
	1    0    0    -1  
$EndComp
$Comp
L Device:C C14
U 1 1 602BC665
P 1475 7225
F 0 "C14" H 1590 7271 50  0000 L CNN
F 1 "100n" H 1590 7180 50  0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 1513 7075 50  0001 C CNN
F 3 "~" H 1475 7225 50  0001 C CNN
F 4 "C1525" H 1475 7225 50  0001 C CNN "LCSC"
	1    1475 7225
	1    0    0    -1  
$EndComp
$Comp
L power:+3.3V #PWR0104
U 1 1 5FBB375A
P 1025 6900
F 0 "#PWR0104" H 1025 6750 50  0001 C CNN
F 1 "+3.3V" H 1040 7073 50  0000 C CNN
F 2 "" H 1025 6900 50  0001 C CNN
F 3 "" H 1025 6900 50  0001 C CNN
	1    1025 6900
	1    0    0    -1  
$EndComp
$Comp
L power:+3.3V #PWR0102
U 1 1 5FBB1A01
P 4250 3750
F 0 "#PWR0102" H 4250 3600 50  0001 C CNN
F 1 "+3.3V" H 4265 3923 50  0000 C CNN
F 2 "" H 4250 3750 50  0001 C CNN
F 3 "" H 4250 3750 50  0001 C CNN
	1    4250 3750
	-1   0    0    1   
$EndComp
$Comp
L power:GND #PWR0101
U 1 1 5FBB1764
P 1025 7500
F 0 "#PWR0101" H 1025 7250 50  0001 C CNN
F 1 "GND" H 1030 7327 50  0000 C CNN
F 2 "" H 1025 7500 50  0001 C CNN
F 3 "" H 1025 7500 50  0001 C CNN
	1    1025 7500
	1    0    0    -1  
$EndComp
$Comp
L Amplifier_Operational:MCP6004 U1
U 5 1 5FBAFE30
P 1125 7200
F 0 "U1" H 1025 7200 50  0000 C CNN
F 1 "MCP6004" H 1300 7350 50  0001 C CNN
F 2 "Package_SO:TSSOP-14_4.4x5mm_P0.65mm" H 1075 7300 50  0001 C CNN
F 3 "http://ww1.microchip.com/downloads/en/DeviceDoc/21733j.pdf" H 1175 7400 50  0001 C CNN
F 4 "C50282" H 1125 7200 50  0001 C CNN "LCSC"
	5    1125 7200
	1    0    0    -1  
$EndComp
$Comp
L power:+3.3V #PWR0119
U 1 1 5FA30126
P 3550 4675
F 0 "#PWR0119" H 3550 4525 50  0001 C CNN
F 1 "+3.3V" H 3565 4848 50  0000 C CNN
F 2 "" H 3550 4675 50  0001 C CNN
F 3 "" H 3550 4675 50  0001 C CNN
	1    3550 4675
	1    0    0    -1  
$EndComp
Wire Wire Line
	2750 5675 2850 5675
Wire Wire Line
	2850 5675 2850 5575
Wire Wire Line
	3550 5575 3550 5675
Connection ~ 3550 5675
Wire Wire Line
	3550 5675 4175 5675
Connection ~ 2550 3075
$Comp
L Amplifier_Operational:AD8603 U5
U 1 1 5FBC4CB6
P 4350 3450
F 0 "U5" H 4350 3275 50  0000 C CNN
F 1 "AD8628" H 4425 3650 50  0000 C CNN
F 2 "Package_TO_SOT_SMD:TSOT-23-5" H 4350 3450 50  0001 C CNN
F 3 "https://www.analog.com/media/en/technical-documentation/data-sheets/AD8603_8607_8609.pdf" H 4350 3650 50  0001 C CNN
F 4 "C29309" H 4350 3450 50  0001 C CNN "LCSC"
	1    4350 3450
	1    0    0    1   
$EndComp
$Comp
L Amplifier_Operational:MCP6004 U1
U 3 1 5F8996DF
P 2450 5775
F 0 "U1" H 2600 6025 50  0000 C CNN
F 1 "MCP6004" H 2625 5925 50  0000 C CNN
F 2 "Package_SO:TSSOP-14_4.4x5mm_P0.65mm" H 2400 5875 50  0001 C CNN
F 3 "http://ww1.microchip.com/downloads/en/DeviceDoc/21733j.pdf" H 2500 5975 50  0001 C CNN
F 4 "C50282" H 2450 5775 50  0001 C CNN "LCSC"
	3    2450 5775
	-1   0    0    -1  
$EndComp
$Comp
L power:GND #PWR0103
U 1 1 5FBF4CD9
P 4250 3150
F 0 "#PWR0103" H 4250 2900 50  0001 C CNN
F 1 "GND" H 4255 2977 50  0000 C CNN
F 2 "" H 4250 3150 50  0001 C CNN
F 3 "" H 4250 3150 50  0001 C CNN
	1    4250 3150
	1    0    0    1   
$EndComp
Wire Wire Line
	2550 3075 3075 3075
$Comp
L Device:R R14
U 1 1 5FCED80F
P 3550 5125
F 0 "R14" V 3450 5125 50  0000 C CNN
F 1 "20k" V 3550 5125 50  0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 3480 5125 50  0001 C CNN
F 3 "~" H 3550 5125 50  0001 C CNN
F 4 "C25765" H 3550 5125 50  0001 C CNN "LCSC"
	1    3550 5125
	-1   0    0    1   
$EndComp
$Comp
L power:GND #PWR0127
U 1 1 5FDFC1AE
P 1900 7375
F 0 "#PWR0127" H 1900 7125 50  0001 C CNN
F 1 "GND" H 1905 7202 50  0000 C CNN
F 2 "" H 1900 7375 50  0001 C CNN
F 3 "" H 1900 7375 50  0001 C CNN
	1    1900 7375
	1    0    0    -1  
$EndComp
$Comp
L power:+3.3V #PWR0128
U 1 1 5FDFC1B4
P 1900 7075
F 0 "#PWR0128" H 1900 6925 50  0001 C CNN
F 1 "+3.3V" H 1915 7248 50  0000 C CNN
F 2 "" H 1900 7075 50  0001 C CNN
F 3 "" H 1900 7075 50  0001 C CNN
	1    1900 7075
	1    0    0    -1  
$EndComp
$Comp
L Device:C C5
U 1 1 5FDFC1BB
P 1900 7225
F 0 "C5" H 2015 7271 50  0000 L CNN
F 1 "100n" H 2015 7180 50  0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 1938 7075 50  0001 C CNN
F 3 "~" H 1900 7225 50  0001 C CNN
F 4 "C1525" H 1900 7225 50  0001 C CNN "LCSC"
	1    1900 7225
	1    0    0    -1  
$EndComp
Wire Wire Line
	6425 5050 6375 5050
Wire Wire Line
	6375 5050 6375 5125
Wire Wire Line
	6050 5050 6375 5050
Connection ~ 6375 5050
Wire Wire Line
	6825 5050 6725 5050
Wire Wire Line
	8625 2700 8125 2700
Text Label 8625 2700 2    50   ~ 0
UART_TX
Text Label 10275 5250 0    50   ~ 0
Boot0
Text Label 10275 5150 0    50   ~ 0
nRESET
Wire Wire Line
	10275 5250 10625 5250
Wire Wire Line
	10275 5150 10625 5150
$Comp
L Connector_Generic:Conn_01x08 J1
U 1 1 600F528F
P 8575 4825
F 0 "J1" H 8655 4817 50  0000 L CNN
F 1 "Conn_01x08" H 8655 4726 50  0000 L CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical" H 8575 4825 50  0001 C CNN
F 3 "~" H 8575 4825 50  0001 C CNN
	1    8575 4825
	1    0    0    -1  
$EndComp
Wire Wire Line
	7125 4850 7125 4725
Wire Wire Line
	7125 4725 8275 4725
Wire Wire Line
	8275 4725 8275 4825
Wire Wire Line
	8275 4825 8375 4825
Connection ~ 8275 4725
Wire Wire Line
	8275 4725 8375 4725
Wire Wire Line
	8325 4525 8375 4525
Wire Wire Line
	8325 4625 8375 4625
Wire Wire Line
	8325 4575 8325 4625
Wire Wire Line
	8325 4575 8325 4525
Connection ~ 8325 4575
Wire Wire Line
	8250 4575 8325 4575
$Comp
L power:GND #PWR0108
U 1 1 6010F2A5
P 7125 5250
F 0 "#PWR0108" H 7125 5000 50  0001 C CNN
F 1 "GND" H 7130 5077 50  0000 C CNN
F 2 "" H 7125 5250 50  0001 C CNN
F 3 "" H 7125 5250 50  0001 C CNN
	1    7125 5250
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0115
U 1 1 601FE1CE
P 8250 4575
F 0 "#PWR0115" H 8250 4325 50  0001 C CNN
F 1 "GND" H 8255 4402 50  0000 C CNN
F 2 "" H 8250 4575 50  0001 C CNN
F 3 "" H 8250 4575 50  0001 C CNN
	1    8250 4575
	0    1    1    0   
$EndComp
$Comp
L Device:Q_NMOS_GDS Q1
U 1 1 600E1A2D
P 7025 5050
F 0 "Q1" H 7229 5096 50  0000 L CNN
F 1 "BTS3028" H 6725 4875 50  0000 L CNN
F 2 "Package_TO_SOT_SMD:TO-252-2" H 7225 5150 50  0001 C CNN
F 3 "~" H 7025 5050 50  0001 C CNN
F 4 "C112639" H 7025 5050 50  0001 C CNN "LCSC"
	1    7025 5050
	1    0    0    -1  
$EndComp
Text Label 8600 2100 2    50   ~ 0
Vm
Wire Wire Line
	8600 2100 8125 2100
$Comp
L power:+3.3V #PWR0129
U 1 1 6028514E
P 9700 1125
F 0 "#PWR0129" H 9700 975 50  0001 C CNN
F 1 "+3.3V" V 9700 1375 50  0000 C CNN
F 2 "" H 9700 1125 50  0001 C CNN
F 3 "" H 9700 1125 50  0001 C CNN
	1    9700 1125
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R16
U 1 1 6036F37E
P 3550 4825
F 0 "R16" V 3450 4825 50  0000 C CNN
F 1 "20k" V 3550 4825 50  0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 3480 4825 50  0001 C CNN
F 3 "~" H 3550 4825 50  0001 C CNN
F 4 "C25765" H 3550 4825 50  0001 C CNN "LCSC"
	1    3550 4825
	-1   0    0    1   
$EndComp
Wire Wire Line
	2850 5675 3550 5675
Connection ~ 2850 5675
$Comp
L Device:LED D3
U 1 1 5FC3F936
P 9975 3875
F 0 "D3" H 10025 3775 50  0000 R CNN
F 1 "BLUE" H 10075 3975 50  0000 R CNN
F 2 "LED_SMD:LED_0603_1608Metric" H 9975 3875 50  0001 C CNN
F 3 "~" H 9975 3875 50  0001 C CNN
F 4 "C72041" H 9975 3875 50  0001 C CNN "LCSC"
	1    9975 3875
	-1   0    0    1   
$EndComp
$Comp
L Device:R R13
U 1 1 5FC3F941
P 10275 3875
F 0 "R13" V 10175 3875 50  0000 C CNN
F 1 "1k" V 10275 3875 50  0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 10205 3875 50  0001 C CNN
F 3 "~" H 10275 3875 50  0001 C CNN
F 4 "C11702" V 10275 3875 50  0001 C CNN "LCSC"
	1    10275 3875
	0    1    1    0   
$EndComp
$Comp
L power:GND #PWR0123
U 1 1 5FC3F94B
P 10425 3875
F 0 "#PWR0123" H 10425 3625 50  0001 C CNN
F 1 "GND" H 10430 3702 50  0000 C CNN
F 2 "" H 10425 3875 50  0001 C CNN
F 3 "" H 10425 3875 50  0001 C CNN
	1    10425 3875
	0    -1   -1   0   
$EndComp
Text Label 9375 3525 0    50   ~ 0
LED_GREEN
Text Label 9375 3875 0    50   ~ 0
LED_BLUE
Wire Wire Line
	9375 3875 9825 3875
Wire Wire Line
	9375 3525 9825 3525
Text Label 6675 3100 0    50   ~ 0
LED_GREEN
Text Label 6675 3000 0    50   ~ 0
LED_BLUE
Wire Wire Line
	6675 3000 7125 3000
Wire Wire Line
	6675 3100 7125 3100
$Comp
L Connector_Generic:Conn_02x07_Odd_Even J4
U 1 1 5FCF325A
P 9900 1325
F 0 "J4" H 9950 1842 50  0000 C CNN
F 1 "FTSH-107-01-F-DV-K" H 9950 1751 50  0000 C CNN
F 2 "Connector_PinHeader_1.27mm:PinHeader_2x07_P1.27mm_Vertical_SMD" H 9900 1325 50  0001 C CNN
F 3 "~" H 9900 1325 50  0001 C CNN
	1    9900 1325
	1    0    0    -1  
$EndComp
Wire Wire Line
	10550 1625 10200 1625
Text Label 10550 1625 2    50   ~ 0
UART_TX
Wire Wire Line
	9700 1625 9350 1625
Text Label 9350 1625 0    50   ~ 0
UART_RX
$Comp
L power:GND #PWR0124
U 1 1 5FC6E3EC
P 9550 1425
F 0 "#PWR0124" H 9550 1175 50  0001 C CNN
F 1 "GND" H 9555 1252 50  0000 C CNN
F 2 "" H 9550 1425 50  0001 C CNN
F 3 "" H 9550 1425 50  0001 C CNN
	1    9550 1425
	0    1    1    0   
$EndComp
Wire Wire Line
	9700 1525 9600 1525
Wire Wire Line
	9600 1525 9600 1425
Wire Wire Line
	9600 1225 9700 1225
Wire Wire Line
	9700 1325 9600 1325
Connection ~ 9600 1325
Wire Wire Line
	9600 1325 9600 1225
Wire Wire Line
	9550 1425 9600 1425
Connection ~ 9600 1425
Wire Wire Line
	9600 1425 9600 1325
NoConn ~ 10200 1425
NoConn ~ 10200 1325
NoConn ~ 10200 1025
NoConn ~ 9700 1025
NoConn ~ 9700 1425
Text Label 10550 1125 2    50   ~ 0
SWDIO
Text Label 10550 1225 2    50   ~ 0
SWCLK
Wire Wire Line
	10550 1225 10200 1225
Wire Wire Line
	10200 1125 10550 1125
Text Label 8600 3100 2    50   ~ 0
SWDIO
Text Label 8600 3200 2    50   ~ 0
SWCLK
Wire Wire Line
	8600 3200 8125 3200
Wire Wire Line
	8125 3100 8600 3100
Text Label 10550 1525 2    50   ~ 0
nRESET
Wire Wire Line
	10550 1525 10200 1525
Wire Wire Line
	8125 2200 8950 2200
$Comp
L power:GND #PWR0125
U 1 1 5FDAC85A
P 9350 2200
F 0 "#PWR0125" H 9350 1950 50  0001 C CNN
F 1 "GND" H 9355 2027 50  0000 C CNN
F 2 "" H 9350 2200 50  0001 C CNN
F 3 "" H 9350 2200 50  0001 C CNN
	1    9350 2200
	0    -1   1    0   
$EndComp
$Comp
L Jumper:Jumper_2_Open JP1
U 1 1 5FDA60C1
P 9150 2200
F 0 "JP1" H 9150 2435 50  0000 C CNN
F 1 "Jumper_2_Open" H 9150 2344 50  0000 C CNN
F 2 "Jumper:SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm" H 9150 2200 50  0001 C CNN
F 3 "~" H 9150 2200 50  0001 C CNN
	1    9150 2200
	-1   0    0    -1  
$EndComp
Connection ~ 7525 1475
Wire Wire Line
	7525 1325 7525 1475
$Comp
L power:GND #PWR0126
U 1 1 5FC4CC4B
P 7625 3500
F 0 "#PWR0126" H 7625 3250 50  0001 C CNN
F 1 "GND" H 7630 3327 50  0001 C CNN
F 2 "" H 7625 3500 50  0001 C CNN
F 3 "" H 7625 3500 50  0001 C CNN
	1    7625 3500
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0105
U 1 1 5FC4C0F0
P 7525 3500
F 0 "#PWR0105" H 7525 3250 50  0001 C CNN
F 1 "GND" H 7530 3327 50  0001 C CNN
F 2 "" H 7525 3500 50  0001 C CNN
F 3 "" H 7525 3500 50  0001 C CNN
	1    7525 3500
	1    0    0    -1  
$EndComp
Text Label 6850 3300 0    50   ~ 0
Boot0
Wire Wire Line
	6500 3300 7125 3300
$Comp
L Device:R R29
U 1 1 60749D41
P 6350 3300
F 0 "R29" V 6425 3300 50  0000 C CNN
F 1 "10k" V 6350 3300 50  0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 6280 3300 50  0001 C CNN
F 3 "~" H 6350 3300 50  0001 C CNN
F 4 "C25744" H 6350 3300 50  0001 C CNN "LCSC"
	1    6350 3300
	0    -1   -1   0   
$EndComp
$Comp
L power:GND #PWR0120
U 1 1 60687757
P 6200 3300
F 0 "#PWR0120" H 6200 3050 50  0001 C CNN
F 1 "GND" V 6205 3172 50  0000 R CNN
F 2 "" H 6200 3300 50  0001 C CNN
F 3 "" H 6200 3300 50  0001 C CNN
	1    6200 3300
	0    1    1    0   
$EndComp
NoConn ~ 8125 3300
NoConn ~ 8125 2600
NoConn ~ 8125 2300
NoConn ~ 7125 2600
NoConn ~ 7125 2700
NoConn ~ 7125 2800
NoConn ~ 7125 2900
$Comp
L MCU_ST_STM32F0:STM32F042K6Tx U2
U 1 1 5FF3B038
P 7625 2500
F 0 "U2" H 7275 1550 50  0000 C CNN
F 1 "STM32F042K6Tx" H 7975 1550 50  0000 C CNN
F 2 "Package_QFP:LQFP-32_7x7mm_P0.8mm" H 7225 1600 50  0001 R CNN
F 3 "http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00105814.pdf" H 7625 2500 50  0001 C CNN
F 4 "C69216" H 7625 2500 50  0001 C CNN "LCSC"
	1    7625 2500
	1    0    0    -1  
$EndComp
Wire Wire Line
	7525 925  7725 925 
Wire Wire Line
	7725 1475 7725 1600
Wire Wire Line
	7525 1475 7725 1475
Wire Wire Line
	7625 1600 7625 1350
Wire Wire Line
	7625 1350 7725 1350
Wire Wire Line
	7725 1350 7725 925 
Connection ~ 7725 925 
Wire Wire Line
	7725 925  7925 925 
Wire Wire Line
	7300 1475 7525 1475
Wire Wire Line
	7125 1800 6825 1800
Text Label 6825 1800 0    50   ~ 0
nRESET
Wire Wire Line
	6450 3200 7125 3200
Text Label 6450 3200 0    50   ~ 0
Nernst_esr_drive
Text Notes 3775 5075 0    50   ~ 0
Nernst Bias Current
$Comp
L power:GND #PWR0130
U 1 1 5FC9FA07
P 2325 7375
F 0 "#PWR0130" H 2325 7125 50  0001 C CNN
F 1 "GND" H 2330 7202 50  0000 C CNN
F 2 "" H 2325 7375 50  0001 C CNN
F 3 "" H 2325 7375 50  0001 C CNN
	1    2325 7375
	1    0    0    -1  
$EndComp
$Comp
L power:+3.3V #PWR0131
U 1 1 5FC9FA0D
P 2325 7075
F 0 "#PWR0131" H 2325 6925 50  0001 C CNN
F 1 "+3.3V" H 2340 7248 50  0000 C CNN
F 2 "" H 2325 7075 50  0001 C CNN
F 3 "" H 2325 7075 50  0001 C CNN
	1    2325 7075
	1    0    0    -1  
$EndComp
$Comp
L Device:C C6
U 1 1 5FC9FA14
P 2325 7225
F 0 "C6" H 2440 7271 50  0000 L CNN
F 1 "DNP" H 2440 7180 50  0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 2363 7075 50  0001 C CNN
F 3 "~" H 2325 7225 50  0001 C CNN
F 4 "" H 2325 7225 50  0001 C CNN "LCSC"
	1    2325 7225
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0132
U 1 1 5FCBE89E
P 2750 7375
F 0 "#PWR0132" H 2750 7125 50  0001 C CNN
F 1 "GND" H 2755 7202 50  0000 C CNN
F 2 "" H 2750 7375 50  0001 C CNN
F 3 "" H 2750 7375 50  0001 C CNN
	1    2750 7375
	1    0    0    -1  
$EndComp
$Comp
L power:+3.3V #PWR0133
U 1 1 5FCBE8A4
P 2750 7075
F 0 "#PWR0133" H 2750 6925 50  0001 C CNN
F 1 "+3.3V" H 2765 7248 50  0000 C CNN
F 2 "" H 2750 7075 50  0001 C CNN
F 3 "" H 2750 7075 50  0001 C CNN
	1    2750 7075
	1    0    0    -1  
$EndComp
$Comp
L Device:C C15
U 1 1 5FCBE8AB
P 2750 7225
F 0 "C15" H 2865 7271 50  0000 L CNN
F 1 "DNP" H 2865 7180 50  0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 2788 7075 50  0001 C CNN
F 3 "~" H 2750 7225 50  0001 C CNN
F 4 "" H 2750 7225 50  0001 C CNN "LCSC"
	1    2750 7225
	1    0    0    -1  
$EndComp
NoConn ~ 7125 2400
NoConn ~ 7125 2300
$Comp
L Device:LED D4
U 1 1 5FD14734
P 10375 6125
F 0 "D4" V 10475 6050 50  0000 R CNN
F 1 "RED" V 10375 6050 50  0000 R CNN
F 2 "LED_SMD:LED_0603_1608Metric" H 10375 6125 50  0001 C CNN
F 3 "~" H 10375 6125 50  0001 C CNN
F 4 "C2286" H 10375 6125 50  0001 C CNN "LCSC"
	1    10375 6125
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R18
U 1 1 5FD1473B
P 10375 5825
F 0 "R18" V 10275 5825 50  0000 C CNN
F 1 "1k" V 10375 5825 50  0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 10305 5825 50  0001 C CNN
F 3 "~" H 10375 5825 50  0001 C CNN
F 4 "C11702" V 10375 5825 50  0001 C CNN "LCSC"
	1    10375 5825
	-1   0    0    1   
$EndComp
$Comp
L power:GND #PWR0134
U 1 1 5FD14741
P 10375 6275
F 0 "#PWR0134" H 10375 6025 50  0001 C CNN
F 1 "GND" H 10380 6102 50  0000 C CNN
F 2 "" H 10375 6275 50  0001 C CNN
F 3 "" H 10375 6275 50  0001 C CNN
	1    10375 6275
	1    0    0    -1  
$EndComp
Wire Wire Line
	10375 5650 10375 5675
Wire Wire Line
	9975 5650 10375 5650
$EndSCHEMATC