by Xukyo | 4 Feb 2020 | Tutorials
The sensor GP2Y0A21 is an infrared distance sensor from Sharp that can detect object located at a distance between 10 and 80cm in front of it. Hardware Computer Arduino UNO USB A/B GP2Y0A21 Operating principle The distance sensor GP2Y0A21 uses infrared light to...
by Xukyo | 9 Jan 2020 | Tutorials
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...
by Xukyo | 9 Jan 2020 | Tutorials
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...
by Xukyo | 9 May 2019 | Tutorials
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...
by Xukyo | 27 Sep 2018 | Tutorials
One of the weak spot of the Arduino is the memory space. When playing with data (saving measurement, reading or writing to a file, etc.), it is necessary to have lot of space available. You can easily add memory to the Arduino with a Secure Digital card or SD card....
