WiFIRCard is a credit card-sized ESP32-S3 board designed for home automation with two relays and a few GPIOs (headers and screw terminals) that can be controlled over WiFi 4 or an IR (infrared) remote ...

You might think that CD players and DVD players have had their run, but as it turns out, they are absolute goldmines for DIY projects. Pop one open and you'll find stepper motors, laser assemblies, ...

Photoelectric sensors detect objects and surface changes using variations in optical properties. Each sensor includes a light emitter and a receiver, with most relying on infrared light. In optical ...

Abstract: Rail transport is widely utilized due to its cost-effectiveness and speed for public travel. Accidents can occur due to small issues like track failures, obstacles, and inadequate ...

The following project is an update of Gary D. Patterson’s “Simplified CTC signals” in the July 1988 issue of MR. Bringing the project up to date was a large endeavour. The block control project now ...

Many times like a multimeter, I expected to have a handy serial terminal nearby such that I will connect those two wires [Tx, Rx] of the probe and will be able to see whether the sensor is really ...

Universal remotes are extremely convenient if they work correctly. But setting them up can be quite a hassle: often, you need to browse through long lists of TV models, key in the codes on the remote ...

Universal remotes are extremely convenient if they work correctly. But setting them up can be quite a hassle: often, you need to browse through long lists of TV models, key in the codes on the remote ...

With this Arduino-project you can control your Remko air conditioner (mainly the MXW, but maybe the SKW, RVT, ATY, ML, RVD or RXT, too) via MQTT and - for example - NodeRED. As the Remko Smart-Control ...