ini_set('display_errors',1);
Using an AC dimmer with ESP32

Using an AC dimmer with ESP32

In home automation, it is interesting to be able to manipulate alternating current in order to control different electrical appliances such as lamps or fans. The AC voltage dimmer is a module allowing to vary the power of an alternating current. It has the same use as...
Using an AC Dimmer with ESP8266

Using an AC Dimmer with ESP8266

The AC voltage variator is a module that allows to vary the power of an alternating current. It has the same use as a transistor in direct current. It can be used to vary the brightness of a lamp supplied with 220V or to vary the speed of a fan, for example. We will...
Using an AC Light Dimmer with Arduino

Using an AC Light Dimmer with Arduino

The AC light dimmer is a module that allows to vary the power of an alternating current. It has the same use as a transistor in direct current. It can be used to vary the brightness of a lamp supplied with 220V or to vary the speed of a fan, for example. Material...
Control 8 relays using ESP32 and a web interface

Control 8 relays using ESP32 and a web interface

In this tutorial, we will create a web interface to control 8 relays individually. This tutorial is a continuation of the project Pilot 8 relays using an ESP32 and the serial monitor. This tutorial can be applied to any microcontroller with a Wifi or Ethernet...
Control 8 relays using ESP32 and serial monitor

Control 8 relays using ESP32 and serial monitor

In this tutorial we will see how to address each relay individually with a NodeMCU32S microcontroller and 74HC595 shift registers. At the end of this tutorial you will also be able to control each relay using the serial monitor. This tutorial follows on from the...