Arduino with RFM69 ISM radio running at 1.8V
Designed to run from small indoor solar cells delivering a few micro Amperes current.
- Start Arduino IDE 1.8.4 or later
- Menu File->Preferences
- Add this URL in "Additional Board Managers URLs" and press OK
https://qqqlab.github.io/rfm69-arduino/package_qqqlab_index.json
- Menu Tools->Board->Board Manager
- Type "qq", or scroll down the list to "qqqlab Board"
- Click on the item to reveal the "Install" button and click Install.
- Now you should have "qqqlab Board" under menu Tools->Boards