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Is It Time For USB Type C?

By Duane Benson, Screaming Circuits   The USB 3.1, type C standard have been around long enough such that the connectors and chips are readily available. But, it’s a more complex set up and may have far more capabilities than…
Design of Automatic Solar Tracking Prototype

The constant change in the position of the sun throughout the year has posed quite a big challenge for us as far as solar power harnessing is concerned. A solar tracker is a device for orienting a solar photovoltaic panel,…
4 Digit Up/Down Counter

This 4 Digit Up/Down Counter has all the features you need. And they are all ON the PC board. This project is as old as Methuselah but it’s very handy for anyone producing or packaging a product or “counting their…
Make any 555 Circuit

The  555 is one of the most popular chips on the market and hundreds of projects have been created using it. More than 30 billion have been produced and it can do almost anything. This project is a universal 555…
Home Alarm – 2 Sector

The  alarm keeps wailing if the door is kept open. It only turns off after 5-10 minutes when the door is opened and closed. The two door switches trigger the alarm as an Instant or Delayed input and these switches…
Metal Detector

This  Metal detectors will detect ferrous (iron, steel, stainless steel) as well as non-ferrous (copper, tin, gold, lead, silver, aluminium) as well as alloys (brass, cupro-nickel, pewter etc). Depending on the complexity of the circuit, a metal detector will be…