BMP180 < Embedded_Systems

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---+ The BMP180 Temperature and Atmospheric Pressure Sensor
<p align="left">The BMP180 is a sensor that measures temperature to 0.1 °C precision and barometric (atmospheric air) pressure to 1 Pa precision. The device has been designed by Bosch Sensortec and comes with an I2C interface. The data sheet with a complete description of the chip and how it can be programmed can be found [[https://cdn-shop.adafruit.com/datasheets/BST-BMP180-DS000-09.pdf][here]]. In addition to the sensors themselves the device features a 176 bit EEPROM containing individual calibration parameters for each device.</p>
| <img alt="bmp180_front.png" height="320" src="%ATTACHURL%/bmp180_front.png" title="bmp180_front.png" width="276" /> | <img alt="bmp180_back.png" height="315" src="%ATTACHURL%/bmp180_back.png" title="bmp180_back.png" width="304" /> |
| front view BMP180 | back view BMP180 |
<p align="left"> </p> <p align="left">I connected SDA, SCL, GND and VDD to its corresponding pins on the Raspberry Pi and left VDDIO unconnected.</p>

Bosch Sensortec provides a [[https://github.com/BoschSensortec/BMP180_driver][BMP180 driver]], which must however be adapted to the I2C interface library used by the controller (in our case I used pigpio accessed through the pigpiod daemon). The sources (%ATTACHURL%/bmp180lib.tar.gz  ) of the library and the include file to be used by clients of the library is attached.

,- %USERSIG{UliRaich - 2017-02-01}%

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Attachments

Topic attachments
I	Attachment	History	Action	Size	Date	Who
png	bmp180_back.png	r1	manage	1128.4 K	2017-02-01 - 10:06	UnknownUser
png	bmp180_front.png	r1	manage	1016.0 K	2017-02-01 - 10:06	UnknownUser
gz	bmp180lib.tar.gz	r1	manage	70.0 K	2017-02-01 - 10:34	UnknownUser

Topic revision: r2 - 2021-11-16 - UliRaich