They’re controlled by an Arduino Nano which has a built-in inertial measurement unit, allowing it to sense the angle the pipe is being held at as well as making determinations about its movement.

Here you will know about A9G Module and how to make a Low Power SMS Based Vehicle Tracking System with A9G GSM+GPS Module and Arduino.

Arduino library for TinyUSB. Contribute to adafruit/Adafruit_TinyUSB_Arduino development by creating an account on GitHub.

Adafruit IO Arduino Library This library provides a simple device independent interface for interacting with Adafruit IO using Arduino. It allows you to switch between WiFi (ESP8266, ESP32, ESP32-S2, ...