We all know the e-ink persistent displays, as they’re cheap and plentiful enough to have become ubiquitous in applications ...
Radar, this project from [Mateusz Juszczyk] isn’t actually using radar. But thanks to the round LCD this desktop gadget does ...
Arduino Uno R3 — Main microcontroller Ultrasonic Distance Sensor (HC-SR04) — Measures real-time water level LCD Display (I2C) — Displays current water level and status LEDs (Green / Yellow / Red) — ...
The HMI display also comes with microphone and speaker connectors, a microSD card slot, various USB interfaces, lithium battery support, and two 2.54 mm pitch GPIO expansion headers exposing UART, I2C ...