I have been meaning to learn more about Arduino and other micro controllers, but my involvement in Hackerspace LA finally fired me up to do some more technology projects.
Arduino Yun with temperature, humidity and light sensor in the greenhouse
I picked the Arduino Yun because I knew I was going to want to easily connect my projects to the Internet for data reporting. This board has both a Linux computer and an Arduino in one package — as well as built-in WiFi. These two systems can “bridge” together and share data in both directions and the WiFi can connect to a local network in order to reach services like IFTTT and others.
While I’ll go more in-depth on this project in future posts, here are the basics of what this system is doing right now.
- Greenhouse Temperature, Humidity and Light Level Arduino Project
- Powered by USB power bank
- Arduino Yun connected to breadboard for power and sensor data
- Local WiFi connection via Arduino Yun for data reporting
- Read Temperature and Humidity using blue sensor at top
- Read current light level using photo-resistor and converting to 100 point scale (0-100, with 0 being total darkness)
- Date and Time pulled from Linux side of Arduino Yun
- Data logged to file on internal SD Card on Arduino (can be accessed remotely via SSH)
- Data logged remotely to Google Spreadsheet via IFTTT
- Data tweeted out to @douglaswelch via IFTTT
- Data notified on iPhone via IFTTT
- Currently polling and reporting every 5 minutes
More information and projects to come!