Adafruit IO is a system that makes your data useful and provides easy-to-use, simple data connections. Basic programming is required to work with the Adafruit IO system, which includes client libraries that wrap its REST and MQTT APIs. Currently, Adafruit provides client libraries to work with following programming languages:
- Arduino
- Ruby
- Python
- Node.js
Still, there is no official Adafruit client library to work with Java. So, you can use the Eclipse Paho MQTT Java client to work with Adafruit IO.
You can visit Adafruit IO at https://io.adafruit.com/.
