One of the joys of writing up the entries for the 2025 Component Abuse Challenge has come in finding all the different alternative uses for the humble transistor. This building block of all modern ...

Here’s a design challenge for you: make a temperature sensor for any computer. If you’re an exceptionally clever smart ass, you’ll probably write some code to report the CPU temps. Others who take the ...

Computers have to be kept in a specific environment to function efficiently. Conditions such as heat, cold, dust and excessive humidity all can damage and lessen the performance of a computer.

Conventional thermostats are based on separate temperature sensor and heater devices with means for feedback between them. But in some recent EDN design ideas (DIs) we’ve seen thermostat designs that ...