Read from different sensors and push the data to thingspeak

You will need a thingspeak account. Add the write keys and field id's to the config in the display.config

You will need a rasperry pi

sudo nano /etc/defaults/keyboard -> change "gb" to "ch"

• sudo raspi-config -> hostname (network) -> password -> ssh -> WiFi

• sudo apt-get update

• sudo apt-get install git

Install Stuff for DHT22 Sensor: On Pi:

• sudo apt-get install python-dev

• sudo apt-get install python-pip

• git clone https://github.com/adafruit/Adafruit_Python_DHT.git

• cd Adafruit_Python_DHT

• sudo python setup.py install

• clone the home_monitor repository

• If you use ds18b20 before starting: sudo modprobe w1-gpio sudo modprobe w1-therm

• start with: python display.py > display.log &

Full config file options:

{ "timer_wait": 60.0, "DS18B20_sensor_path" : "/sys/bus/w1/devices/"", "trace_level" : "INFO", "sensors" : [ {"type" : "DHT22", "id" : "23", "temperature" : "field1", "humidity" : "field2"}, {"type" : "DS18B20", "id" :"28-000009aea5a6", "temperature" : "field4"}, ], "logging" : { "trace" : {"level" : "ALWAYS"}, "thingspeak" : {"channel_key" : "CAFFEECAFFEECAFF"} }, "actions" : [ {"type" : "TRACE", "condition" : "val['field4'] > 40", "level" : "WARN"} ] }

To have it start when the raspberry is powered on, create a script home_monitor.sh with the following content in /etc/init.d (do this as user root, with: sudo nano home_display.sh):

#! /bin/sh cd [source directory]/home_monitor python monitor.py > monitor.log

make the script executable with: sudo chmod 755 home_display.sh add this script to the start with: sudo update-rc.d home_monitor.sh defaults

There are currently no tests :P

Clone and run...

• Andreas Hosbach - AndreasHosbach

See also the list of contributors who participated in this project.

This project is licensed under the MIT License - see the LICENSE.md file for details

• Hat tip to anyone who wrote tutorials about raspberry pi.