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 ...

Simple, portable and low-cost experiments as RC and RL series circuits are proposed to experiment with DC circuits. Very common elements are used: a few electronics components (resistors, capacitors, ...

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 ...

Leaf wetness in crops can help us understand when to treat them to avoid diseases. Monitoring wetness, soil humidity and temperature are all important. The leaf wetness sensor is a sensor used to ...

[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 ...