A Particle Photon reading an HC-SR04 ultrasonic sensor to calculate the amount of water left in a Greer vertical cylindrical 1550 gallon tank.

Use with a Particle device connected to Freenove. Freenove Smart Car Remote Shield for Arduino UNO is a special expansion shield used for remote control of smart cars. Using this shield can make it convenient to connect with wireless communication modul

Room Temperature and Pressure