Resistor Scanner is an Android app that uses OpenCV to scan resistor colour bands and determines their values.Uses OpenCV to scan resistor colour bands and determines resistor values. Source available here: https://github.com/thegouger/ResistorScanner/ Resistor Scanner Android...

whiskeytangohotel.com has build a internet monitoring device based on Raspberry Pi: It is a pretty commonly uttered question (sometimes loudly) around the home or office; "Is the internet up?" As the goto IT Support Manager around the house this can get a little tiresome. Most of the...

by Einar Abell @ edn.com: This Design Idea gives two versions of an indicator light that changes from green to red as a battery discharges. There are many circuits that do this sort of thing, but all the ones I have seen are too complex and costly for my taste. This DI shows a method...

The LTC®3335 is a high efficiency, low quiescent current (680nA) buck-boost DC/DC converter with an integrated precision coulomb counter which monitors accumulated battery discharge in long life battery powered applications. The buck-boost can operate down to 1.8V on its input and...

by Jan Buiting @ elektormagazine.com: Even in the Internet & Wi-Fi age where it seems irrelevant just where you are at a specific time, it’s sometime useful to know if a visitor called at your door while you were out. Who knows, it might be the DHL man with a delivery of...

Sasa Karanovic has designed and built a DIY USB power Supply active load tester, that is available at GitHub: USB Power supply Active Load Tester or short PAL Tester is unit designed for testing the quality of the power supplies. Idea was to create low-cost, precise device for...

The electronics trend in automotive is continuously rising due to the demand in the market. The technological developments are now into embedded system in which the manufacturers are developing products that suits to the needs of the people. In this design, it features a automotive...

If you´re searching for an enclosure with a high variability and for a reasonable price, then we can recommend you the EH basic series enclosures. Searching for a compromise between the quality (materials, design,…) and production costs is a theme at development of every device...