Learn to build an RFID based attendance system using Arduino with step-by-step instructions, circuit diagrams, and complete code. This $35 DIY project replaces expensive commercial systems with ...

Hi, I'm Bill. I'm a software developer with a passion for making and electronics. I do a lot of things and here is where I document my learning in order to be able to inspire other people to make ...

jm_PCF8574_blink.ino Blinking backlight of a LCD module. This example blinks the backlight of a LCM2004A I2C LCD module. The LCM2004A module is commonly interfaced for I2C with a PCF8574A or optionaly ...

Arduino RFID/NFC Cloner & Emulator A turnkey Arduino project to read, clone and (optionally) emulate MIFARE Classic 1K tags or NTAG2xx NFC cards using a PN532 module. Perfect for security research, ...

Psychophysiological measurement can be very crucial in critical conditions faced in aviation, military, hospitals, etc. Respiration rate is one of the primary parameters to determine the ...

Interfacing TMC2209 Stepper Motor Driver with Arduino UNO – Basic Direction and Stepping Control In this comprehensive TMC2209 Arduino tutorial, we'll walk through a complete example of how to ...