What is the point of reviewing a cheap timer module, especially if it is based on the ubiquitous 555 timer chip? Recently I got an ‘updated’ version of the common 555 timer relay module. This time it ...

What is MQTT Relay Module Timer? This is a simple program that responds to MQTT requests by adding more seconds to a countdown timer. In its concept, it's just replacing a mechanical countdown timer ...

Simple countdown timer Relay is off when the device is powered. Press the button to add 30 seconds, or a different customizable time increment Hold the button to turn it off Connect it to Wi-Fi to ...