This project incorporates communication between an Android Phone and the Arduino using Bluetooth. The basic functionality includes taking messages from an android phone, displaying them on an LCD ...

The nano sensor interface presented below is a microcontroller-based universal sensor interface with a power-saver mechanism. The idea, centered around an Arduino Nano (v3) microcontroller, was ...

Sketch to simulate the keypad of an old TI-30 calculator (original model, with the bubble-lens LEDs). I purchased a lot of "for parts or repair" TI-30 calculators on eBay. After mixing and matching ...

Arduino now has an officially supported command-line interface. The project, called arduino-cli, is the first time that the official toolchain has departed from the Java-based editor known as the A… ...

The circuit on the left can interface with any one of those, plus any 5V logic signal if a dc voltage of 5, 12 or 24V is also available. 16mA has been chosen for the led current to match the drive ...