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Manage multiple Arduino with an I2C bus

Manage multiple Arduino with an I2C bus

It can be practical, especially in home automation projects, to communicate between several devices. One of the commonly used techniques is the I2C (or TWI) protocol. The I2C protocol is a method which makes it possible to connect several “Master” cards and several...
Using a RFID module with Arduino

Using a RFID module with Arduino

The RFID module is a smart card reader which allows among others, to activate a mechanism when the correct card is presented to the reader. We will use here the RC522 module, which is the most common. Hardware Computer ArduinoUNO USB Cable Module RFID Dupont Cable M/F...
Using a Potentiometer with Arduino

Using a Potentiometer with Arduino

The potentiometer is a variable resistor which is used to vary the voltage at its terminals. It is used in several applications including set a value: adjust the brightness of a light, adjust the volume of a speaker, change the position of a servomotor, etc. Hardware...
Luminosity measurement with a photoresistor

Luminosity measurement with a photoresistor

A photoresistor is an electronic component that measures ambient light. This component is useful in some projects such as a solar panel light follower or home automation to create a smart lamp that only turns on when it is dark or to set up an alarm with a laser...
Measure your home temperature on your smartphone

Measure your home temperature on your smartphone

One interesting branch of robotics is making existing objects smarter which helps in our everyday life. This domain is known as domotics (especially for home) and IoT (Internet of Things) Here is a small domotic project that consists in measuring your home temperature...