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Electronic Modules

Deep dives into relays, drivers, displays, and breakout boards.

Arduino UNO with 74HC595 shift register and multiplexer controlling LEDs

Extend Arduino UNO Inputs & Outputs — 74HC595, Multiplexer & LCD Tutorial

Extend the inputs and outputs of your Arduino UNO with 74HC595 shift registers and 4051/4067 multiplexers: free Arduino IDE code, ready-to-use Arduino library, LED matrix and LCD wiring, plus the same circuits for Arduino Nano and Arduino Mega.

Nov 18 11 min

Arduino UNO multiplexer LED matrix project with 74HC595

🧩 Electronic Modules

Arduino UNO Multiplexer LED Projects — 74HC595 & 4051 Arduino IDE Code

Cool Arduino UNO multiplexer LED projects using 74HC595 shift registers and 4051/4067 multiplexers: free Arduino IDE code, ready Arduino library and wiring diagrams that also run on Arduino Nano, Arduino Mega and ESP32 Arduino.

Oct 27 9 min

Arduino UNO wired to an SPI EEPROM chip on a breadboard

🧩 Electronic Modules

Interface SPI EEPROM with Arduino UNO — Free Arduino IDE Code & Library

How to interface an SPI EEPROM with Arduino UNO step by step: free Arduino IDE code, Arduino library, full wiring map — easily ported to Arduino Nano, Arduino Mega and ESP32 Arduino.

Oct 27 9 min