https://github.com/rigtorp/rpi2-sensors

A Raspberry Pi 2 environmental sensors expansion board
https://github.com/rigtorp/rpi2-sensors

Last synced: 4 days ago
JSON representation

A Raspberry Pi 2 environmental sensors expansion board

• Host: GitHub
• URL: https://github.com/rigtorp/rpi2-sensors
• Owner: rigtorp
• License: mit
• Created: 2015-06-19T20:24:13.000Z (about 11 years ago)
• Default Branch: master
• Last Pushed: 2015-07-06T14:08:46.000Z (about 11 years ago)
• Last Synced: 2026-07-02T03:07:18.679Z (23 days ago)
• Language: Python
• Size: 5.21 MB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

README

          
# Raspberry Pi 2 Sensors

An expansion board for the Raspberry Pi 2 that measures temperature, humidity

and barometric pressure.

I used two DHT11 sensors, one for outdoor and one for indoor measurements of to

temperature and humidity. Barometric pressure is measured using a BMP085 sensor.

There is no schematic. The circuit is very simple: DHT11 sensors are fed 3.3V

and connected to GPIO pins 17 and 22 (4.7kOhm pullup, use whatever gives you

acceptable rise time). BMP085 sensor is fed 3.3V and connected to the I2C

interface.

![Image of circuit board front](https://github.com/rigtorp/rpi2-sensors/blob/master/front.jpg)

![Image of circuit board back](https://github.com/rigtorp/rpi2-sensors/blob/master/back.jpg)