“Not just a Smart Coffee Maker with Smartphone control, it’s a multipurpose ThermoGraph also!
Introdution
Smart automatic Coffee Maker with Graph, can be controlled via Bluetooth… or just load fresh water, and the system will start automatically!
Every each parts are handmade and all of the functions are my own ideas.
Developed on Arduino Nano / Uno, uses ST7920 display, HC-05 Bluetooth adapter, Dallas DS18B20 temperature sensor, relay to control the heater coil, button with leds, buzzer and a CD4017BE decade counter drives the LED bar.”