Blocking or non-blocking read; Supports any number of rows and columns; User defined key mapping; prevents reading the same event twice. A matrix keypad will have some pins or wires that you have to ...

Learn how to make a simple device for monitoring the state of the ionosphere and the quality of shortwave signals using the CA3089 chip. Shortwave Propagation is the way radio waves in the 3 to 30 MHz ...

This paper presents a methodology for the measurement of strain by means of strain-gauges, where the data acquisition is done by using an Arduino Uno board, due to the low-cost and the easy ...

This is a GAL IC programmer software that allows to program GAL IC chips from various manufcaturers. It is based on work of several other people: whitequark · it ...

[Thomas] found an interesting probable millivoltmeter with some Beckman displays. Like many instruments from that time period, this one had a lot of tobacco smoke residue inside. The display unit ...

We may receive a commission on purchases made from links. Through Arduino hardware and software, you can create all kinds of fascinating electronic devices, both for fun and as an excellent STEM ...

Discover how you can build a professional digital multimeter using Arduino that measures up to 24V DC voltage, checks resistance, conducts diode testing, and performs continuity tests. This ...

ESP32 - Digital Voltmeter using old style ADC conversion method. ESP32 - Digital Voltmeter using old style ADC conversion method. High precision, good stability , negative and positive Voltages !