!!!!!!!! NEW FUNCTIONALITY!!!!!!!!!!!!
Now it is possible to add independent timers to your relays. Set the day the activation and deactivation time and your relay will activate at the scheduled time.
It does not matter if the module is reset since it saves the activation parameters in the processor's flash memory (only if the firmware included in the app is used)

Thanks to this App you can control the relays connected to your arduino or connected to module ESP8266 or ESP32 or similar. You can add as many relays as you want from the same module or different modules. The code is included in the application to be able to load it into the Arduino IDE and the connection scheme between the ESP and the relays.

The app also receives feedback from the relays atomically positioning ON / OFF.
It is possible to modify the button that governs the relay so that it sends PULSES in an interval that you can prefix. (only if the firmware included in the app is used ...)

In the Settings section you can modify the control word to suit your needs.