The Aqua Write uses an Arduino Mega 2560 to handle moving data between the SD card and the system’s memory.

Arduino & ESP8266 IoT Circuitry Collection A comprehensive collection of Arduino and ESP8266 projects designed for both beginners and professionals. Each project includes detailed documentation, ...

Adafruit MQTT Library Arduino library for MQTT support, including access to Adafruit IO. Works with the Adafruit FONA, Arduino Yun, ESP8266 Arduino platforms, and anything that supports Arduino's ...