Make a Big LED clock with arduino and RTC module to make it as a Real Time Clock.
The system is designed to detect intrusion (unauthorized entry) into a building or other area.
Save water, save energy and monitor water consumption with a smart faucet.
The mobile full body sanitizer is a design prototype which employs a linear moving pressurized sanitizing spray to sanitize half of the body
Control and read light, temperature, humidity, feeder and water pump for cat with SD card, HTTP server on NodeMcu and Android client app.