ini_set('display_errors',1);
Using an RFID module with an ESP8266

Using an RFID module with an ESP8266

The RC522 RFID module is a smart card reader which, among other things, allows to activate a mechanism when the right card is presented to the reader. In this tutorial, we will see the management of an RC522 RFID module with a NodeMCU ESP8266 card. Prerequisite:...
Using an RFID module with an ESP32

Using an RFID module with an ESP32

The RC522 RFID module is a smart card reader which, among other things, allows to activate a mechanism when the right card is presented to the reader. In this tutorial, we will see the management of an RC522 RFID module with an ESP32 NodeMCU card. Prerequisite:...
Using a DS3231 Module with Arduino

Using a DS3231 Module with Arduino

Every computer is equipped with an internal real time clock that allows it to know the date. Arduino type microcontrollers do not have PSTN. The DS3231 module gives the Arduino the ability to calculate the date, allowing it to control time more precisely. Hardware...
Using a PIR sensor with Arduino

Using a PIR sensor with Arduino

It is possible to activate a system, such as an alarm, by detecting the presence of a person using a PIR motion sensor. In home automation, it is common practice to operate devices when a person enters a room. This is made possible by motion sensors such as the...
Create a Capacitive Sensor with Arduino

Create a Capacitive Sensor with Arduino

Capacitive sensors are commonly used in particular for object detection. They can, for example, detect the passage of an object on a conveyor belt or the level of a liquid in a tank. Closer to home, capacitive sensors are used in touch screens or as switches. In this...