Did you run out of input pins? Don't worry, here is a solution without any shift registers.
Single tap, double tap, triple tap, four-tap, Hold, Single tap and hold.
How to connect multiple Atlas sensors to a single Arduino serial port.
Control a Seven Segment Display using just 3 pins of your Arduino, This technique is possible because of 74HC595 a.k.a. a shift register.
A simple display driver for 7 Segment LED displays of any arbitary number of digits, controlled directly using GPIOs. programmed in Ada.
Use a multiplexer IC to break out four GPIO pins into 16 outputs. Perfect for an ATtiny project!
Actual PWM duty cycle on 7-segment LED display, driven by hardware (PL) and controlled by software (PS).
Everyone goes crazy for microcontrollers, but is there a way to channel my input signals into one bus? The answer is yes!
A basic breakout for the ADG732 32 channel multiplexer and video tutorial!
A simple test to multiply analog pin of NodeMCU with IC 4051, then send its values to ThingSpeak
Recycle your NXT Hitechnic touch multiplexer for use with the Lego EV3
A general purpose countdown timer. Easily settable for up to one hour. Great for the kitchen. Perfect 5 minute eggs!
This project shows how to build a bidirectional four-channel I2C bus multiplexer circuit.
A prototype low-cost, tileable, single-color LED matrix with low power consumption and scalable to large displays.
Weighing objects with a microprocessor is explained, including using a multiplexer to weigh multiple items.
A 5 digit digital weighing scale controller designed to be used with commonly available HX711 modules and a load cell.
Nowadays you have complex driver ICs and powerful libraries to display data on a LED matrix, but can you go without?
