diff --git a/firmware/controllers/algo/engine.cpp b/firmware/controllers/algo/engine.cpp
index 5b34d5fc76..869353c639 100644
--- a/firmware/controllers/algo/engine.cpp
+++ b/firmware/controllers/algo/engine.cpp
@@ -236,6 +236,11 @@ void Engine::periodicSlowCallback(DECLARE_ENGINE_PARAMETER_SIGNATURE) {
 
 	slowCallBackWasInvoked = true;
 
+#if HW_PROTEUS
+	void baroUpdate();
+	baroUpdate();
+#endif
+
 #if ANALOG_HW_CHECK_MODE
 	efiAssertVoid(OBD_PCM_Processor_Fault, isAdcChannelValid(CONFIG(clt).adcChannel), "No CLT setting");
 	efitimesec_t secondsNow = getTimeNowSeconds();
diff --git a/firmware/controllers/sensors/Lps25Sensor.cpp b/firmware/controllers/sensors/Lps25Sensor.cpp
new file mode 100644
index 0000000000..6b3fd73c20
--- /dev/null
+++ b/firmware/controllers/sensors/Lps25Sensor.cpp
@@ -0,0 +1,18 @@
+#include "Lps25Sensor.h"
+#include "global.h"
+
+Lps25Sensor::Lps25Sensor(Lps25& sensor)
+	: StoredValueSensor(SensorType::BarometricPressure, MS2NT(1000))
+	, m_sensor(&sensor)
+{
+}
+
+void Lps25Sensor::update() {
+	auto result = m_sensor->readPressureKpa();
+
+	if (result) {
+		setValidValue(result.Value, getTimeNowNt());
+	} else {
+		invalidate();
+	}
+}
diff --git a/firmware/controllers/sensors/Lps25Sensor.h b/firmware/controllers/sensors/Lps25Sensor.h
new file mode 100644
index 0000000000..bdb9c83047
--- /dev/null
+++ b/firmware/controllers/sensors/Lps25Sensor.h
@@ -0,0 +1,15 @@
+#pragma once
+
+#include "stored_value_sensor.h"
+#include "lps25.h"
+
+class Lps25Sensor : public StoredValueSensor {
+public:
+	explicit Lps25Sensor(Lps25& sensor);
+	void update();
+
+	void showInfo(Logging* logger, const char* sensorName) const override;
+
+private:
+	Lps25* m_sensor;
+};
diff --git a/firmware/controllers/sensors/sensor_info_printing.cpp b/firmware/controllers/sensors/sensor_info_printing.cpp
index 24e9798022..be3b69ef58 100644
--- a/firmware/controllers/sensors/sensor_info_printing.cpp
+++ b/firmware/controllers/sensors/sensor_info_printing.cpp
@@ -3,6 +3,7 @@
 #include "functional_sensor.h"
 #include "redundant_sensor.h"
 #include "rpm_calculator.h"
+#include "Lps25Sensor.h"
 #include "linear_func.h"
 #include "resistance_func.h"
 #include "thermistor_func.h"
@@ -46,6 +47,10 @@ void RpmCalculator::showInfo(Logging* logger, const char* /*sensorName*/) const
 	);
 }
 
+void Lps25Sensor::showInfo(Logging* logger, const char* sensorName) const {
+	// TODO
+}
+
 void LinearFunc::showInfo(Logging* logger, float testRawValue) const {
 	scheduleMsg(logger, "    Linear function slope: %.2f offset: %.2f min: %.1f max: %.1f", m_a, m_b, m_minOutput, m_maxOutput);
 	const auto [valid, value] = convert(testRawValue);
diff --git a/firmware/controllers/sensors/sensors.mk b/firmware/controllers/sensors/sensors.mk
index e04a9923d5..2c6fb02c47 100644
--- a/firmware/controllers/sensors/sensors.mk
+++ b/firmware/controllers/sensors/sensors.mk
@@ -16,6 +16,7 @@ CONTROLLERS_SENSORS_SRC_CPP = 	$(PROJECT_DIR)/controllers/sensors/thermistors.cp
 	$(PROJECT_DIR)/controllers/sensors/AemXSeriesLambda.cpp \
 	$(PROJECT_DIR)/cotnrollers/sensors/flex_sensor.cpp \
 	$(PROJECT_DIR)/controllers/sensors/software_knock.cpp \
+	$(PROJECT_DIR)/controllers/sensors/Lps25Sensor.cpp \
 	$(PROJECT_DIR)/controllers/sensors/converters/linear_func.cpp \
 	$(PROJECT_DIR)/controllers/sensors/converters/resistance_func.cpp \
 	$(PROJECT_DIR)/controllers/sensors/converters/thermistor_func.cpp
diff --git a/firmware/hw_layer/i2c_bb.cpp b/firmware/hw_layer/i2c_bb.cpp
index 1ea1ba7350..96c8a35b57 100644
--- a/firmware/hw_layer/i2c_bb.cpp
+++ b/firmware/hw_layer/i2c_bb.cpp
@@ -8,28 +8,35 @@
 
 #include "i2c_bb.h"
 
-#if EFI_PROD_CODE
-
 #include "io_pins.h"
 #include "efi_gpio.h"
 
 void BitbangI2c::sda_high() {
+#if EFI_PROD_CODE
 	palSetPad(m_sdaPort, m_sdaPin);
+#endif
 }
 
 void BitbangI2c::sda_low() {
+#if EFI_PROD_CODE
 	palClearPad(m_sdaPort, m_sdaPin);
+#endif
 }
 
 void BitbangI2c::scl_high() {
+#if EFI_PROD_CODE
 	palSetPad(m_sclPort, m_sclPin);
+#endif
 }
 
 void BitbangI2c::scl_low() {
+#if EFI_PROD_CODE
 	palClearPad(m_sclPort, m_sclPin);
+#endif
 }
 
 void BitbangI2c::init(brain_pin_e scl, brain_pin_e sda) {
+#if EFI_PROD_CODE
 	if (m_sdaPort) return;
 
 	efiSetPadMode("i2c", scl, PAL_MODE_OUTPUT_OPENDRAIN); //PAL_STM32_OTYPE_OPENDRAIN
@@ -40,6 +47,7 @@ void BitbangI2c::init(brain_pin_e scl, brain_pin_e sda) {
 
 	m_sdaPort = getHwPort("i2c", sda);
 	m_sdaPin = getHwPin("i2c", sda);
+#endif
 
 	// Both lines idle high
 	scl_high();
@@ -99,8 +107,12 @@ bool BitbangI2c::readBit() {
 	waitQuarterBit();
 	waitQuarterBit();
 
+#if EFI_PROD_CODE
 	// Read just before we set the clock low (ie, as late as possible)
 	bool val = palReadPad(m_sdaPort, m_sdaPin);
+#else
+	bool val = false;
+#endif
 
 	scl_low();
 	waitQuarterBit();
@@ -209,5 +221,3 @@ void BitbangI2c::writeRegister(uint8_t addr, uint8_t reg, uint8_t val) {
 
 	write(addr, buf, 2);
 }
-
-#endif // EFI_PROD_CODE
diff --git a/firmware/hw_layer/i2c_bb.h b/firmware/hw_layer/i2c_bb.h
index 1f30af8b7a..4c25c39e29 100644
--- a/firmware/hw_layer/i2c_bb.h
+++ b/firmware/hw_layer/i2c_bb.h
@@ -9,8 +9,9 @@
 #pragma once
 
 #if EFI_PROD_CODE
-
 #include "hal.h"
+#endif
+
 #include "rusefi_hw_enums.h"
 #include <cstdint>
 #include <cstddef>
@@ -53,10 +54,10 @@ private:
 	// Wait for 1/4 of a bit time
 	void waitQuarterBit();
 
+#if EFI_PROD_CODE
 	ioportid_t m_sclPort = 0;
 	ioportmask_t m_sclPin = 0;
 	ioportid_t m_sdaPort = 0;
 	ioportmask_t m_sdaPin = 0;
+#endif
 };
-
-#endif // EFI_PROD_CODE
diff --git a/firmware/hw_layer/sensors/lps25.cpp b/firmware/hw_layer/sensors/lps25.cpp
index 678ab3ac23..a65d4b5e57 100644
--- a/firmware/hw_layer/sensors/lps25.cpp
+++ b/firmware/hw_layer/sensors/lps25.cpp
@@ -6,8 +6,6 @@
  * @author Matthew Kennedy, (c) 2020
  */
 
-#if EFI_PROD_CODE
-
 #include "lps25.h"
 
 static constexpr uint8_t addr = 0x5C;
@@ -51,6 +49,10 @@ bool Lps25::init(brain_pin_e scl, brain_pin_e sda) {
 }
 
 expected<float> Lps25::readPressureKpa() {
+	if (!m_hasInit) {
+		return unexpected;
+	}
+
 	// First read the status reg to check if there are data available
 	uint8_t sr = m_i2c.readRegister(addr, REG_Status);
 
@@ -99,5 +101,3 @@ expected<float> Lps25::readPressureKpa() {
 
 	return kilopascal;
 }
-
-#endif // EFI_PROD_CODE
diff --git a/firmware/hw_layer/sensors/lps25.h b/firmware/hw_layer/sensors/lps25.h
index 34efbe0542..d79f2e8436 100644
--- a/firmware/hw_layer/sensors/lps25.h
+++ b/firmware/hw_layer/sensors/lps25.h
@@ -8,8 +8,6 @@
 
 #pragma once
 
-#if EFI_PROD_CODE
-
 #include "i2c_bb.h"
 
 #include "expected.h"
@@ -25,5 +23,3 @@ private:
 	BitbangI2c m_i2c;
 	bool m_hasInit = false;
 };
-
-#endif // EFI_PROD_CODE
diff --git a/firmware/init/init.h b/firmware/init/init.h
index 393373a57a..12dccfc524 100644
--- a/firmware/init/init.h
+++ b/firmware/init/init.h
@@ -27,6 +27,7 @@ void initThermistors(DECLARE_CONFIG_PARAMETER_SIGNATURE);
 void initCanSensors();
 void initLambda(DECLARE_ENGINE_PARAMETER_SIGNATURE);
 void initFlexSensor(DECLARE_CONFIG_PARAMETER_SIGNATURE);
+void initBaro();
 
 // Sensor reconfiguration
 void reconfigureVbatt(DECLARE_CONFIG_PARAMETER_SIGNATURE);
diff --git a/firmware/init/init.mk b/firmware/init/init.mk
index b1142b3df8..c42e681851 100644
--- a/firmware/init/init.mk
+++ b/firmware/init/init.mk
@@ -8,3 +8,4 @@ INIT_SRC_CPP =	$(PROJECT_DIR)/init/sensor/init_sensors.cpp \
 				$(PROJECT_DIR)/init/sensor/init_map.cpp \
 				$(PROJECT_DIR)/init/sensor/init_flex.cpp \
 				$(PROJECT_DIR)/init/sensor/init_vbatt.cpp \
+				$(PROJECT_DIR)/init/sensor/init_baro.cpp \
diff --git a/firmware/init/sensor/init_baro.cpp b/firmware/init/sensor/init_baro.cpp
new file mode 100644
index 0000000000..7af9a40501
--- /dev/null
+++ b/firmware/init/sensor/init_baro.cpp
@@ -0,0 +1,27 @@
+#include "engine.h"
+#include "Lps25Sensor.h"
+
+#include "rusefi_hw_enums.h"
+
+static Lps25 device;
+static Lps25Sensor sensor(device);
+
+void initBaro() {
+	// If there's already an external (analog) baro sensor configured,
+	// don't configure the internal one.
+	if (Sensor::hasSensor(SensorType::BarometricPressure)) {
+		return;
+	}
+
+#if HW_PROTEUS
+	if (device.init(GPIOB_10, GPIOB_11)) {
+		sensor.Register();
+	}
+#endif
+}
+
+void baroUpdate() {
+#if EFI_PROD_CODE
+	sensor.update();
+#endif
+}
diff --git a/firmware/init/sensor/init_sensors.cpp b/firmware/init/sensor/init_sensors.cpp
index 8ac3360aae..1bf791b6fd 100644
--- a/firmware/init/sensor/init_sensors.cpp
+++ b/firmware/init/sensor/init_sensors.cpp
@@ -20,6 +20,7 @@ void initNewSensors(Logging* logger DECLARE_ENGINE_PARAMETER_SUFFIX) {
 	initThermistors(PASS_CONFIG_PARAMETER_SIGNATURE);
 	initLambda(PASS_ENGINE_PARAMETER_SIGNATURE);
 	initFlexSensor(PASS_CONFIG_PARAMETER_SIGNATURE);
+	initBaro();
 
 	// Init CLI functionality for sensors (mocking)
 	initSensorCli(logger);