A few weeks ago, I installed an automatic water heater switch to my bathroom, but it was a crude device. What I really want to do is design a universal heater driver. That basic idea can be adapted to ...

[Matt] wanted to have more control over his meat smoker so he built this advanced PID smoker controller. It uses the solid state relay seen in the bottom-right of this image to switch the smoker’s ...

Rick] had a problem. His garage refrigerator was tasked with a critical duty—keeping refreshing beverages at low temperature.

Arduino open source hardware was been used in an industrial controller design. Austrian firm Controllino has based its programmable logic controllers (PLCs) on Arduino modules. This is an example of ...