IoT - Sense_Temp_Humidity (https://github.com/tangowhisky37/RaspiPythonProjects/tree/master/Sense_Temp_Humidity)

• This project has evolved to Log data to CSV on the RaspberryPi and also upload data to the ThingSpeak/IoT Platform
• Components required for the programs in this folder include
  • 1 x Raspberry Pi 3 (I have used a 3, Model B. You can use whatever you have at your disposal.)
  • 3 x 50 Ohm Resistors
  • 1 x 10 KOhm Resistors
  • 3 x LED's
  • LED's connected to the following GPIO ports : Red LED on GPIO17, amber LED on GPIO27, Green LED on GPIO22
  • 1 x Breadboard
  • 1 x Extension cable (Suggested) to extend the GPIO ports of the Raspberry Pi and bring them closed to the breadboard
  • 6 x Jumper cables - Female (connect to Rasberry Pi GPIO) to Male (Connect to the Breadboard)
  • 4 x Jumper cables - Female (connect to Rasberry Pi GPIO) to Male (Connect to the Breadboard)
  • 1 x Tactile Push button
  • 1 x Raspberry Pi Cobbler board (Recommended, to breakout the GPIO's) and make working easier
  • 1 x Arduino compatible Temperature and Humidity sensor
    • http://www.jaycar.com.au/arduino-compatible-temperature-and-humidity-sensor-module/p/XC4520
    • https://littlebirdelectronics.com.au/products/arduino-compatible-temperature-and-humidity-sensor-module
    • https://tkkrlab.nl/wiki/Arduino_KY-001_Temperature_sensor_module
    • https://learn.adafruit.com/adafruits-raspberry-pi-lesson-11-ds18b20-temperature-sensing
    • https://www.cl.cam.ac.uk/projects/raspberrypi/tutorials/temperature/
    • Sensor should be connected to GPIO04 (Pin 7)
  • 1 x Speaker connected to the Raspberry Pi if you want it to speak
  • 1 x 3.5mm Audio cable to connect the speaker to the Raspberry Pi
• Python Adafruit DHT Library - https://github.com/adafruit/Adafruit_Python_DHT
• Data directory to log captured data in CSV form in /opt/data.
  • The folder /opt/data will need to be created.
  • Permissions on the folder to be granted to user executing the program.
• To log data at the ThingSpeak IoT platform, create an account at ThingSpeak (https://thingspeak.com).
  • This program uses the DHT11 and logs both Temperatury, Humidity
  • Create a new channel at Thingspeak. Create two new fields at ThingSpeak i.e. field1, field2
  • Copy your API key to the program and update the WriteDataThinkSpeak() function.
  • This program has now been updated to pull data from a local Arduino Mega 2560 over http. The Arduino has a DHT11 connected to it.
  • The Arduino also includes an Ethernet module based on the enc28j60 chip allowing it to connect over the network.
  • For details on connecting up the Arduino and configuring the ethernet module please refer to my contribution at ArduinoProjects here on Github.