BMP180 Barometric Pressure/Temperature/Altitude Sensor - 5V ready

Bosch BMP180 barometric pressure and temperature sensor breakout with on-board 3.3 V regulator and I2C level shifter for 5 V systems. Drop-in replacement for the BMP085 using the same firmware and libraries.

Logical pinout · physical placement not verified

VIN
Power input. Adafruit product page says to connect VIN to the 5V voltage pin; board includes 3.3V regulator and I2C level shifter so it is 5V compliant. Source: https://www.adafruit.com/product/1603
Type · PowerVoltage · 5V input supported by Adafruit product page; on-board 3.3V regulation
GND
Ground connection. Adafruit product page says to connect GND to ground. Source: https://www.adafruit.com/product/1603
Type · GroundVoltage · 0V
SCL
I2C clock. Adafruit product page says to connect SCL to I2C Clock, Arduino Analog 5 in its example. Source: https://www.adafruit.com/product/1603
Type · I2CVoltage · 3.3V/5V logic safe per Adafruit level-shifter statement
SDA
I2C data. Adafruit product page says to connect SDA to I2C Data, Arduino Analog 4 in its example. Source: https://www.adafruit.com/product/1603
Type · I2CVoltage · 3.3V/5V logic safe per Adafruit level-shifter statement

Pin	Type	Function	Voltage
VIN	Power	Power input. Adafruit product page says to connect VIN to the 5V voltage pin; board includes 3.3V regulator and I2C level shifter so it is 5V compliant. Source: https://www.adafruit.com/product/1603	5V input supported by Adafruit product page; on-board 3.3V regulation
GND	Ground	Ground connection. Adafruit product page says to connect GND to ground. Source: https://www.adafruit.com/product/1603	0V
SCL	I2C	I2C clock. Adafruit product page says to connect SCL to I2C Clock, Arduino Analog 5 in its example. Source: https://www.adafruit.com/product/1603	3.3V/5V logic safe per Adafruit level-shifter statement
SDA	I2C	I2C data. Adafruit product page says to connect SDA to I2C Data, Arduino Analog 4 in its example. Source: https://www.adafruit.com/product/1603	3.3V/5V logic safe per Adafruit level-shifter statement

Logical pinout · physical placement not verified

Pin details

4 connections

VIN
Power input. Adafruit product page says to connect VIN to the 5V voltage pin; board includes 3.3V regulator and I2C level shifter so it is 5V compliant. Source: https://www.adafruit.com/product/1603
PowerVoltage · 5V input supported by Adafruit product page; on-board 3.3V regulation
GND
Ground connection. Adafruit product page says to connect GND to ground. Source: https://www.adafruit.com/product/1603
GroundVoltage · 0V
SCL
I2C clock. Adafruit product page says to connect SCL to I2C Clock, Arduino Analog 5 in its example. Source: https://www.adafruit.com/product/1603
I2CVoltage · 3.3V/5V logic safe per Adafruit level-shifter statement
SDA
I2C data. Adafruit product page says to connect SDA to I2C Data, Arduino Analog 4 in its example. Source: https://www.adafruit.com/product/1603
I2CVoltage · 3.3V/5V logic safe per Adafruit level-shifter statement

Start wiring

I2C · SPI · Single data line · 3.3 – 5 V · Breakout

Confirm the data interface matches your host board.

Module pins: VIN, GND, SCL, SDA. Schematik maps them to your board in the app.

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