Ardutemp project

An Arduino and DS18X20 based temperature sensor network with python REST API

The Arduino firmware is based on the Dallas Temperature Library https://milesburton.com/Dallas_Temperature_Control_Library

The hardware

• 1-wire ds18X20 sensors are connected to digital input 2 of Arduino board (dont forget the pull-up resistor). You can plug many sensors on the same bus. For more informations : http://playground.arduino.cc/Learning/OneWire

• The firmware is derivated from the Dallas Temperature Library main example https://github.com/milesburton/Arduino-Temperature-Control-Library

• It is supposed to work on almost all Arduino compatible board.

Installation of the python based REST server

• check your permission to access serial devices (typically add the user to dialout group)
• install python modules pip install flask datetime functools serial
• delete the example sensors.conf file
• start rest_server.py

Usage

• Try readtemp.py to read sensors locally
• Connect to http://localhost:5000/api/ to check sensors status
• Read a specific sensor http://localhost:5000/api/10E82688000800A4
• Read sensor dynamically with html/js web page : http://localhost:5000
• Add new locations curl -i -H "Content-Type: application/json" -X POST -d '{"id":"10E82688000800A4", "location": "Rack 3.9 back"}' http://localhost:5000/api/locations/