| The simple tool shown here can help to sort or select through-hole LEDs by visually comparing their color, brightness and/or radiation angle...
| The simple tool shown here can help to sort or select through-hole LEDs by visually comparing their color, brightness and/or radiation angle...
| In the microcontroller world as elsewhere, learning by doing is a good approach. The Arduino Uno, which features especially low cost and a l...
| National Instrument’s myDAQ and LabVIEW are associated with austere applications in measurement and control by students and pros. Here the p...
| In principle, a water system comprises a distribution network pressurized by a 12-V pump typically drawing 5–10 A, and usually operating in...
| The FTDI FT311D is a flexible bridge that can interface your circuit to an Android smartphone or tablet. It offers options for seven digital...
| Here’s a non-invasive, all electronic add-on to display the running speed (rpm) of your lathe or milling machine, be it CNC or vintage. It’s...
| This capacitive-detection dual wall touch-switch, designed to fit into domestic electric wall-boxes, uses analog technology throughout. A si...
| This simple circuit generates acoustic and visual alarms when it detects a shock, vibration or earthquake. It also has a relay that can be u...
| An LED VU meter is an excellent tool for keeping a close eye on the magnitude of audio voltages and so help prevent an input from being over...