EESchema Schematic File Version 2 date Mon 27 Feb 2012 09:13:43 AM PST LIBS:power LIBS:device LIBS:transistors LIBS:conn LIBS:linear LIBS:regul LIBS:74xx LIBS:cmos4000 LIBS:adc-dac LIBS:memory LIBS:xilinx LIBS:special LIBS:microcontrollers LIBS:dsp LIBS:microchip LIBS:analog_switches LIBS:motorola LIBS:texas LIBS:intel LIBS:audio LIBS:interface LIBS:digital-audio LIBS:philips LIBS:display LIBS:cypress LIBS:siliconi LIBS:opto LIBS:atmel LIBS:contrib LIBS:valves LIBS:WBO2-02-cache EELAYER 25 0 EELAYER END $Descr User 11000 8500 encoding utf-8 Sheet 1 1 Title "WBO2 controller" Date "27 feb 2012" Rev "1" Comp "Waltech Systems" Comment1 "www.waltech.com" Comment2 "" Comment3 "" Comment4 "" $EndDescr Text Notes 4500 3750 0 60 ~ 0 SERIAL Text Notes 9700 1400 0 60 ~ 0 OUTPUT2 Text Notes 7950 6200 0 60 ~ 0 OUTPUT1 Text Notes 6700 5250 0 60 ~ 0 PUMP DRIVER Text Notes 1850 1350 0 60 ~ 0 REFRENCE VOLTAGE Text Notes 5400 950 0 60 ~ 0 PUMP CURRENT MEASUREMENT Text Notes 5450 4300 0 60 ~ 0 HEATER CONTROL Text Notes 2050 7300 0 60 ~ 0 POWER SUPPLY Wire Wire Line 3000 2150 3000 2000 Wire Wire Line 9500 950 9500 4200 Wire Wire Line 9500 950 9600 950 Wire Wire Line 9400 1150 9400 950 Wire Wire Line 9400 1150 9600 1150 Wire Wire Line 5650 1350 5700 1350 Wire Wire Line 5800 2300 5800 1850 Wire Wire Line 7000 2300 7000 1750 Wire Wire Line 7900 4300 6600 4300 Wire Wire Line 7900 4300 7900 4600 Wire Wire Line 5700 1100 5700 1650 Wire Wire Line 3750 4300 4050 4300 Wire Wire Line 8800 4600 8800 4750 Wire Wire Line 8800 4600 7900 4600 Wire Wire Line 8300 3150 8600 3150 Wire Wire Line 8300 2050 8600 2050 Wire Wire Line 8300 950 8600 950 Wire Wire Line 9150 3650 9150 3700 Wire Wire Line 9100 3150 9150 3150 Wire Wire Line 9100 2600 9150 2600 Wire Wire Line 9150 2000 9150 2050 Wire Wire Line 9100 1500 9150 1500 Wire Wire Line 5850 3700 6600 3700 Wire Wire Line 8800 4750 9400 4750 Wire Wire Line 5150 1350 4850 1350 Wire Wire Line 7600 1350 6900 1350 Connection ~ 5800 2150 Wire Wire Line 5800 1850 5850 1850 Wire Wire Line 7750 1700 7750 1750 Wire Wire Line 7750 1750 6850 1750 Wire Wire Line 3750 3800 5400 3800 Wire Wire Line 5400 3800 5400 3450 Wire Wire Line 7750 4750 7750 5000 Wire Wire Line 8500 4750 8050 4750 Wire Wire Line 1500 2300 1500 2900 Wire Wire Line 9400 6000 7750 6000 Wire Wire Line 6350 3450 6100 3450 Wire Wire Line 6100 3150 6250 3150 Wire Wire Line 6750 2700 6750 3150 Wire Wire Line 6750 2700 3750 2700 Wire Wire Line 3750 4500 5200 4500 Wire Wire Line 8650 4950 9400 4950 Wire Wire Line 1850 6400 1900 6400 Wire Wire Line 9400 5150 8500 5150 Wire Wire Line 8500 5150 8500 4750 Wire Wire Line 5850 4100 6000 4100 Wire Wire Line 3750 4400 5300 4400 Wire Wire Line 5300 4400 5300 4650 Wire Wire Line 4450 2500 3750 2500 Connection ~ 6350 5900 Connection ~ 7750 6000 Connection ~ 6350 4650 Connection ~ 7750 4750 Wire Wire Line 6450 5050 6350 5050 Wire Wire Line 5300 4650 5650 4650 Connection ~ 6350 5900 Connection ~ 6350 4650 Wire Wire Line 6150 4650 6750 4650 Wire Wire Line 7750 6000 7750 6300 Wire Wire Line 7750 6300 6750 6300 Wire Wire Line 6750 6300 6750 6100 Wire Wire Line 6150 5900 6750 5900 Wire Wire Line 1600 2650 1600 2500 Wire Wire Line 1600 2650 1700 2650 Connection ~ 3750 1650 Wire Wire Line 3750 1750 3750 1650 Connection ~ 1700 1550 Wire Wire Line 1700 1550 1700 2150 Wire Wire Line 850 3650 850 1550 Connection ~ 2750 2150 Wire Wire Line 3150 2150 2600 2150 Wire Wire Line 1700 2650 1700 2800 Wire Wire Line 1700 2800 1850 2800 Connection ~ 850 2850 Connection ~ 2850 1650 Wire Wire Line 4400 3500 3750 3500 Connection ~ 1900 7000 Wire Wire Line 1150 7000 4050 7000 Wire Wire Line 1150 7000 1150 6800 Connection ~ 1900 6600 Connection ~ 2450 7000 Wire Wire Line 3750 4800 4100 4800 Connection ~ 4050 6800 Wire Wire Line 4050 6800 4300 6800 Wire Wire Line 2450 7000 2450 6900 Wire Wire Line 4200 6250 4050 6250 Connection ~ 3050 6600 Wire Wire Line 2450 6900 2350 6900 Wire Wire Line 1500 2900 1850 2900 Wire Wire Line 1250 3650 1550 3650 Wire Wire Line 1550 3650 1550 3400 Wire Wire Line 1550 3400 1850 3400 Wire Wire Line 1850 3200 1550 3200 Wire Wire Line 1550 3200 1550 3050 Wire Wire Line 1550 3050 1250 3050 Wire Wire Line 1600 2500 1250 2500 Connection ~ 850 2500 Wire Wire Line 3450 6250 3550 6250 Wire Wire Line 1750 6600 2050 6600 Wire Wire Line 4050 6250 4050 7000 Wire Wire Line 4300 6800 4300 6850 Wire Wire Line 2600 5100 2750 5100 Connection ~ 1400 3650 Connection ~ 1400 3050 Connection ~ 850 3050 Connection ~ 1500 2850 Connection ~ 3750 2150 Wire Wire Line 2750 2200 2750 2150 Connection ~ 3000 2150 Connection ~ 2850 6600 Connection ~ 2450 6900 Connection ~ 2050 6600 Connection ~ 3050 7000 Connection ~ 4050 6250 Connection ~ 3550 6250 Connection ~ 3450 6250 Connection ~ 3050 6250 Connection ~ 850 3650 Connection ~ 3150 2150 Wire Wire Line 3750 3000 4150 3000 Wire Wire Line 3750 4700 4100 4700 Wire Wire Line 3750 2900 4150 2900 Wire Wire Line 3750 2800 4150 2800 Wire Wire Line 3050 5900 3050 6600 Wire Wire Line 3050 5900 3100 5900 Wire Wire Line 1150 6600 1250 6600 Wire Wire Line 3750 3400 4400 3400 Wire Wire Line 1850 1750 1850 2000 Wire Wire Line 1850 2000 2850 2000 Wire Wire Line 2850 2000 2850 1650 Wire Wire Line 850 2850 1100 2850 Wire Wire Line 2850 1650 2950 1650 Wire Wire Line 1350 1550 1850 1550 Wire Wire Line 4200 1650 3450 1650 Wire Wire Line 3550 2150 3900 2150 Wire Wire Line 1700 2150 2100 2150 Wire Wire Line 850 2700 1850 2700 Connection ~ 850 2700 Wire Wire Line 6450 6300 6350 6300 Wire Wire Line 6750 4850 6750 5000 Connection ~ 8050 5300 Wire Wire Line 3750 4600 5050 4600 Wire Wire Line 5050 4600 5050 5900 Wire Wire Line 5050 5900 5650 5900 Wire Wire Line 3750 3900 5550 3900 Wire Wire Line 9400 5250 8500 5250 Wire Wire Line 8500 5250 8500 5300 Wire Wire Line 8500 5300 7800 5300 Wire Wire Line 9400 4850 9300 4850 Wire Wire Line 9400 5050 8700 5050 Wire Wire Line 5200 4500 5200 3150 Wire Wire Line 5200 3150 5700 3150 Wire Wire Line 6750 3150 7350 3150 Wire Wire Line 7150 3450 6850 3450 Wire Wire Line 5400 3450 5700 3450 Connection ~ 6750 3150 Wire Wire Line 6350 6300 6350 6450 Wire Wire Line 6350 6450 9400 6450 Wire Wire Line 9400 6450 9400 6200 Wire Wire Line 1900 6600 1900 6350 Connection ~ 1900 6400 Wire Wire Line 6750 5000 7800 5000 Connection ~ 7750 5000 Connection ~ 7000 1750 Connection ~ 5700 1350 Wire Wire Line 5700 1650 5850 1650 Wire Wire Line 7800 5000 7800 5300 Wire Wire Line 8050 4750 8050 4800 Wire Wire Line 4900 2150 5200 2150 Wire Wire Line 9150 1500 9150 1450 Wire Wire Line 9150 2050 9100 2050 Wire Wire Line 9150 2600 9150 2550 Wire Wire Line 9150 3150 9150 3100 Wire Wire Line 9150 3700 9100 3700 Connection ~ 9150 3700 Connection ~ 9150 3150 Connection ~ 9150 2600 Connection ~ 9150 2050 Connection ~ 9150 1500 Connection ~ 9150 950 Connection ~ 9100 950 Wire Wire Line 8300 1500 8600 1500 Wire Wire Line 8350 2600 8600 2600 Wire Wire Line 8300 3700 8600 3700 Connection ~ 9150 4200 Wire Wire Line 6200 1100 6400 1100 Wire Wire Line 6900 1350 6900 1100 Wire Wire Line 6600 3700 6600 4300 Wire Wire Line 6500 2300 6300 2300 Wire Wire Line 5700 2150 5800 2150 Wire Wire Line 3050 6600 2850 6600 Wire Wire Line 9400 950 9100 950 Wire Wire Line 9500 4200 9100 4200 Text GLabel 3000 2000 3 60 Input ~ 0 5v $Comp L R R30 U 1 1 4CB28F4C P 6650 1100 F 0 "R30" V 6730 1100 50 0000 C CNN F 1 "100k" V 6650 1100 50 0000 C CNN 1 6650 1100 0 1 1 0 $EndComp $Comp L CONN_2 P7 U 1 1 4CB28150 P 9950 1050 F 0 "P7" V 9900 1050 40 0000 C CNN F 1 "CONN_2" V 10000 1050 40 0000 C CNN 1 9950 1050 1 0 0 -1 $EndComp Text Label 8300 950 0 60 ~ 0 bit5 Text Label 8300 1500 0 60 ~ 0 bit4 Text Label 8300 2050 0 60 ~ 0 bit3 Text Label 8350 2600 0 60 ~ 0 bit2 Text Label 8300 3150 0 60 ~ 0 bit1 Text Label 8300 3700 0 60 ~ 0 bit0 $Comp L R R18 U 1 1 4CB28096 P 8850 950 F 0 "R18" V 8930 950 50 0000 C CNN F 1 "10k" V 8850 950 50 0000 C CNN 1 8850 950 0 1 1 0 $EndComp $Comp L R R19 U 1 1 4CB28095 P 8850 1500 F 0 "R19" V 8930 1500 50 0000 C CNN F 1 "10k" V 8850 1500 50 0000 C CNN 1 8850 1500 0 1 1 0 $EndComp $Comp L R R20 U 1 1 4CB2808C P 8850 2050 F 0 "R20" V 8930 2050 50 0000 C CNN F 1 "10k" V 8850 2050 50 0000 C CNN 1 8850 2050 0 1 1 0 $EndComp $Comp L R R21 U 1 1 4CB2808B P 8850 2600 F 0 "R21" V 8930 2600 50 0000 C CNN F 1 "10k" V 8850 2600 50 0000 C CNN 1 8850 2600 0 1 1 0 $EndComp $Comp L R R24 U 1 1 4CB2807B P 9150 1200 F 0 "R24" V 9230 1200 50 0000 C CNN F 1 "5k" V 9150 1200 50 0000 C CNN 1 9150 1200 -1 0 0 1 $EndComp $Comp L R R25 U 1 1 4CB2807A P 9150 1750 F 0 "R25" V 9230 1750 50 0000 C CNN F 1 "5k" V 9150 1750 50 0000 C CNN 1 9150 1750 -1 0 0 1 $EndComp Text GLabel 9100 4200 0 60 Input ~ 0 gnd $Comp L R R26 U 1 1 4CB27D99 P 9150 2300 F 0 "R26" V 9230 2300 50 0000 C CNN F 1 "5k" V 9150 2300 50 0000 C CNN 1 9150 2300 -1 0 0 1 $EndComp $Comp L R R27 U 1 1 4CB27D98 P 9150 2850 F 0 "R27" V 9230 2850 50 0000 C CNN F 1 "5k" V 9150 2850 50 0000 C CNN 1 9150 2850 -1 0 0 1 $EndComp $Comp L R R28 U 1 1 4CB27D97 P 9150 3400 F 0 "R28" V 9230 3400 50 0000 C CNN F 1 "5k" V 9150 3400 50 0000 C CNN 1 9150 3400 -1 0 0 1 $EndComp $Comp L R R22 U 1 1 4CB27D8E P 8850 3150 F 0 "R22" V 8930 3150 50 0000 C CNN F 1 "10k" V 8850 3150 50 0000 C CNN 1 8850 3150 0 1 1 0 $EndComp $Comp L R R23 U 1 1 4CB27D88 P 8850 3700 F 0 "R23" V 8930 3700 50 0000 C CNN F 1 "10k" V 8850 3700 50 0000 C CNN 1 8850 3700 0 1 1 0 $EndComp $Comp L R R29 U 1 1 4CB27D75 P 9150 3950 F 0 "R29" V 9230 3950 50 0000 C CNN F 1 "10k" V 9150 3950 50 0000 C CNN 1 9150 3950 -1 0 0 1 $EndComp Text Label 4900 2150 0 60 ~ 0 pump Text Label 4850 1350 0 60 ~ 0 rcal Text Label 7600 1350 2 60 ~ 0 vref Text Label 7750 1700 2 60 ~ 0 pump-adc $Comp L R R13 U 1 1 4CB2795F P 5400 1350 F 0 "R13" V 5480 1350 50 0000 C CNN F 1 "22k" V 5400 1350 50 0000 C CNN 1 5400 1350 0 1 1 0 $EndComp $Comp L R R15 U 1 1 4CB27959 P 5950 1100 F 0 "R15" V 6030 1100 50 0000 C CNN F 1 "12k" V 5950 1100 50 0000 C CNN 1 5950 1100 0 1 1 0 $EndComp $Comp L R R14 U 1 1 4CB27945 P 5450 2150 F 0 "R14" V 5530 2150 50 0000 C CNN F 1 "22k" V 5450 2150 50 0000 C CNN 1 5450 2150 0 1 1 0 $EndComp $Comp L R R16 U 1 1 4CB2793E P 6050 2300 F 0 "R16" V 6130 2300 50 0000 C CNN F 1 "12k" V 6050 2300 50 0000 C CNN 1 6050 2300 0 1 1 0 $EndComp $Comp L R R17 U 1 1 4CB2792A P 6750 2300 F 0 "R17" V 6830 2300 50 0000 C CNN F 1 "100k" V 6750 2300 50 0000 C CNN 1 6750 2300 0 1 1 0 $EndComp Text GLabel 1500 1700 0 60 Input ~ 0 5v $Comp L CONN_2 P6 U 1 1 4C8C0D38 P 9750 6100 F 0 "P6" V 9700 6100 40 0000 C CNN F 1 "CONN_2" V 9800 6100 40 0000 C CNN 1 9750 6100 1 0 0 -1 $EndComp Text GLabel 7150 3450 2 60 Input ~ 0 gnd Text Label 7350 3150 2 60 ~ 0 nernst $Comp L C C14 U 1 1 4C8C0BF9 P 5900 3150 F 0 "C14" H 5950 3250 50 0000 L CNN F 1 ".1uf" H 5950 3050 50 0000 L CNN 1 5900 3150 0 -1 -1 0 $EndComp $Comp L R R10 U 1 1 4C8C0BF4 P 6500 3150 F 0 "R10" V 6580 3150 50 0000 C CNN F 1 "6.8k" V 6500 3150 50 0000 C CNN 1 6500 3150 0 1 1 0 $EndComp Text Label 8700 5050 0 60 ~ 0 nernst Text Label 8650 4950 0 60 ~ 0 vref Text GLabel 1850 6400 0 60 Input ~ 0 12v Text GLabel 9300 4850 0 60 Input ~ 0 12v Text GLabel 6000 4100 2 60 Input ~ 0 gnd $Comp L R R9 U 1 1 4C8C0844 P 6600 3450 F 0 "R9" V 6680 3450 50 0000 C CNN F 1 "1.8k" V 6600 3450 50 0000 C CNN 1 6600 3450 0 1 1 0 $EndComp Text Label 8400 5300 2 60 ~ 0 rcal Text Label 8350 4750 2 60 ~ 0 pump $Comp L R R12 U 1 1 4C8C0678 P 8050 5050 F 0 "R12" V 8130 5050 50 0000 C CNN F 1 "62ohm" V 8050 5050 50 0000 C CNN 1 8050 5050 -1 0 0 1 $EndComp $Comp L C C15 U 1 1 4C8BC000 P 6350 4850 F 0 "C15" H 6400 4950 50 0000 L CNN F 1 "1uf" H 6400 4750 50 0000 L CNN 1 6350 4850 -1 0 0 1 $EndComp $Comp L R R7 U 1 1 4C8BBFD6 P 5900 4650 F 0 "R7" V 5980 4650 50 0000 C CNN F 1 "10k" V 5900 4650 50 0000 C CNN 1 5900 4650 0 1 1 0 $EndComp $Comp L R R8 U 1 1 4C8BBE39 P 5900 5900 F 0 "R8" V 5980 5900 50 0000 C CNN F 1 "10k" V 5900 5900 50 0000 C CNN 1 5900 5900 0 1 1 0 $EndComp $Comp L R R4 U 1 1 4C8BBC2B P 1100 1550 F 0 "R4" V 1180 1550 50 0000 C CNN F 1 "10k" V 1100 1550 50 0000 C CNN 1 1100 1550 0 -1 -1 0 $EndComp $Comp L C C13 U 1 1 4C8BBB13 P 3750 1950 F 0 "C13" H 3800 2050 50 0000 L CNN F 1 "10uf" H 3800 1850 50 0000 L CNN 1 3750 1950 -1 0 0 1 $EndComp Text Label 4200 1650 2 60 ~ 0 vref Text GLabel 4400 3300 0 60 Input ~ 0 gnd Text GLabel 4400 3600 0 60 Input ~ 0 5v Text GLabel 3100 5900 2 60 Input ~ 0 5v Text Label 4450 2700 2 60 ~ 0 nernst-adc Text Label 4450 2500 2 60 ~ 0 pump-adc Text Label 4150 3000 2 60 ~ 0 bit0 Text Label 4150 2900 2 60 ~ 0 bit1 $Comp L CONN_4 P1 U 1 1 4C89C310 P 4750 3450 F 0 "P1" V 4700 3450 50 0000 C CNN F 1 "CONN_4" V 4800 3450 50 0000 C CNN 1 4750 3450 1 0 0 -1 $EndComp $Comp L CONN_2 P2 U 1 1 4C89C2B9 P 800 6700 F 0 "P2" V 750 6700 40 0000 C CNN F 1 "CONN_2" V 850 6700 40 0000 C CNN 1 800 6700 -1 0 0 1 $EndComp $Comp L CONN_3 K2 U 1 1 4C89C2AF P 9750 5150 F 0 "K2" V 9700 5150 50 0000 C CNN F 1 "CONN_3" V 9800 5150 40 0000 C CNN 1 9750 5150 1 0 0 -1 $EndComp $Comp L CONN_3 K1 U 1 1 4C89C2A8 P 9750 4850 F 0 "K1" V 9700 4850 50 0000 C CNN F 1 "CONN_3" V 9800 4850 40 0000 C CNN 1 9750 4850 1 0 0 -1 $EndComp $Comp L DIODE-SOT D3 U 1 1 4C89C213 P 1900 6800 F 0 "D3" H 1900 6900 40 0000 C CNN F 1 "DIODE-SOT" H 1900 6700 40 0000 C CNN 1 1900 6800 0 -1 -1 0 $EndComp Text Label 4050 4300 2 60 ~ 0 bit5 Text Label 4100 4700 2 60 ~ 0 bit4 Text Label 4100 4800 2 60 ~ 0 bit3 Text Label 4150 2800 2 60 ~ 0 bit2 $Comp L LM324 U4 U 3 1 4C897B2C P 7250 6000 F 0 "U4" H 7300 6200 60 0000 C CNN F 1 "LM324" H 7400 5800 50 0000 C CNN 3 7250 6000 1 0 0 -1 $EndComp $Comp L LM324 U4 U 4 1 4C897AE7 P 2350 1650 F 0 "U4" H 2400 1850 60 0000 C CNN F 1 "LM324" H 2500 1450 50 0000 C CNN 4 2350 1650 1 0 0 -1 $EndComp $Comp L LM324 U4 U 2 1 4C897AD9 P 7250 4750 F 0 "U4" H 7300 4950 60 0000 C CNN F 1 "LM324" H 7400 4550 50 0000 C CNN 2 7250 4750 1 0 0 -1 $EndComp $Comp L LM324 U4 U 1 1 4C897A9B P 6350 1750 F 0 "U4" H 6400 1950 60 0000 C CNN F 1 "LM324" H 6500 1550 50 0000 C CNN 1 6350 1750 1 0 0 -1 $EndComp Text GLabel 6450 6300 2 60 Input ~ 0 gnd Text GLabel 6450 5050 2 60 Input ~ 0 gnd $Comp L C C7 U 1 1 4C895E38 P 6350 6100 F 0 "C7" H 6400 6200 50 0000 L CNN F 1 "1uf" H 6400 6000 50 0000 L CNN 1 6350 6100 -1 0 0 1 $EndComp $Comp L C C6 U 1 1 4C895A19 P 3350 2150 F 0 "C6" H 3400 2250 50 0000 L CNN F 1 ".1" H 3400 2050 50 0000 L CNN 1 3350 2150 0 1 1 0 $EndComp Text GLabel 3900 2150 2 60 Input ~ 0 gnd Text GLabel 850 3650 1 60 Input ~ 0 gnd Text GLabel 2600 5100 0 60 Input ~ 0 gnd $Comp L VDD #PWR01 U 1 1 4C8959AB P 1900 6350 F 0 "#PWR01" H 1900 6450 30 0001 C CNN F 1 "VDD" H 1900 6460 30 0000 C CNN 1 1900 6350 1 0 0 -1 $EndComp $Comp L VSS #PWR02 U 1 1 4C89597A P 4300 6850 F 0 "#PWR02" H 4300 6850 30 0001 C CNN F 1 "VSS" H 4300 6780 30 0000 C CNN 1 4300 6850 1 0 0 -1 $EndComp Text GLabel 4200 6250 2 60 Input ~ 0 gnd $Comp L LED D1 U 1 1 4C8958FC P 3250 6250 F 0 "D1" H 3250 6350 50 0000 C CNN F 1 "LED" H 3250 6150 50 0000 C CNN 1 3250 6250 1 0 0 -1 $EndComp $Comp L FUSE F1 U 1 1 4C8958E7 P 1500 6600 F 0 "F1" H 1600 6650 40 0000 C CNN F 1 "FUSE" H 1400 6550 40 0000 C CNN 1 1500 6600 1 0 0 -1 $EndComp Text GLabel 2350 6900 0 60 Input ~ 0 gnd $Comp L 7805 U2 U 1 1 4C8957E2 P 2450 6650 F 0 "U2" H 2600 6454 60 0000 C CNN F 1 "7805" H 2450 6850 60 0000 C CNN 1 2450 6650 1 0 0 -1 $EndComp $Comp L INDUCTOR L1 U 1 1 4C895603 P 1500 2000 F 0 "L1" V 1450 2000 40 0000 C CNN F 1 "10uh" V 1600 2000 40 0000 C CNN 1 1500 2000 -1 0 0 1 $EndComp $Comp L C C2 U 1 1 4C8955CF P 1050 2500 F 0 "C2" H 1100 2600 50 0000 L CNN F 1 "1uf" H 1100 2400 50 0000 L CNN 1 1050 2500 0 1 1 0 $EndComp $Comp L C C5 U 1 1 4C8955B0 P 1300 2850 F 0 "C5" H 1350 2950 50 0000 L CNN F 1 ".1" H 1350 2750 50 0000 L CNN 1 1300 2850 0 1 1 0 $EndComp $Comp L C C4 U 1 1 4C895569 P 1050 3650 F 0 "C4" H 1100 3750 50 0000 L CNN F 1 "229" H 1100 3550 50 0000 L CNN 1 1050 3650 0 1 1 0 $EndComp $Comp L C C3 U 1 1 4C895560 P 1050 3050 F 0 "C3" H 1100 3150 50 0000 L CNN F 1 "22p" H 1100 2950 50 0000 L CNN 1 1050 3050 0 1 1 0 $EndComp $Comp L CRYSTAL X1 U 1 1 4C895526 P 1400 3350 F 0 "X1" H 1400 3500 60 0000 C CNN F 1 "4mhz" H 1400 3200 60 0000 C CNN 1 1400 3350 0 1 1 0 $EndComp $Comp L LED D2 U 1 1 4C895513 P 5900 3450 F 0 "D2" H 5900 3550 50 0000 C CNN F 1 "LED" H 5900 3350 50 0000 C CNN 1 5900 3450 1 0 0 -1 $EndComp $Comp L MOS_N Q1 U 1 1 4C8954FF P 5750 3900 F 0 "Q1" H 5760 4070 60 0000 R CNN F 1 "MOS_N" H 5760 3750 60 0000 R CNN 1 5750 3900 1 0 0 -1 $EndComp $Comp L ATMEGA8-P IC1 U 1 1 4C893DF4 P 2750 3600 F 0 "IC1" H 2050 4850 50 0000 L BNN F 1 "ATMEGA8-P" H 3000 2200 50 0000 L BNN F 2 "DIL28" H 3250 2125 50 0001 C CNN 1 2750 3600 1 0 0 -1 $EndComp $Comp L R R3 U 1 1 4C87ECB6 P 2350 2150 F 0 "R3" V 2430 2150 50 0000 C CNN F 1 "18k" V 2350 2150 50 0000 C CNN 1 2350 2150 0 1 1 0 $EndComp $Comp L R R1 U 1 1 4C87ECB4 P 3200 1650 F 0 "R1" V 3280 1650 50 0000 C CNN F 1 "100" V 3200 1650 50 0000 C CNN 1 3200 1650 0 1 1 0 $EndComp $Comp L R R2 U 1 1 4C87EC4E P 3800 6250 F 0 "R2" V 3880 6250 50 0000 C CNN F 1 "1.8k" V 3800 6250 50 0000 C CNN 1 3800 6250 0 1 1 0 $EndComp $Comp L C C1 U 1 1 4C87EC33 P 3050 6800 F 0 "C1" H 3100 6900 50 0000 L CNN F 1 "10uf" H 3100 6700 50 0000 L CNN 1 3050 6800 1 0 0 -1 $EndComp $EndSCHEMATC