CD74HC4067 16-Channel Analogue Multiplexer Breakout Board, Pack of 10

CD74HC4067 16-Channel Analogue Multiplexer Board This pack of ten CD74HC4067 breakout boards gives you a practical way to manage multiple analogue or digital signals through a single microcontroller pin. Each board is built around the CD74HC4067 high-speed CMOS analogue multiplexer, which works like a rotary switch to route the common connection to any one of sixteen channel inputs. That means you can connect up to sixteen sensors, switches or other devices while using just five pins on your microcontroller. Simple Channel Selection Controlling the board is straightforward. Four digital outputs from your microcontroller connect to the address selection pins S0 to S3, and by sending the appropriate binary address you can choose which of the sixteen channels is active. The board also includes a common pin labelled COM, with the sixteen channel connections marked as CHAN00 through CHAN15, so wiring up your project is clear and easy to follow. Flexible Signal Handling Because the CD74HC4067 supports both analogue and digital signals, you can use it for a wide range of applications. It handles serial data at TTL level, making it useful for directing data from one transmit pin to multiple receiving devices, or for reading multiple sensors through a single analogue input. The signal voltage should not exceed the board's VCC supply. For bidirectional communication, you can add a second board to handle the return path, and multiple boards can be combined to build similar circuits for protocols such as I2C or SPI. Practical Project Use Each board is compact and easy to integrate into breadboard or prototype builds. The pack of ten gives you plenty of spares for experimenting or for projects that need several multiplexing stages. Whether you are expanding the input capacity of an Arduino, Raspberry Pi or other development board, this multiplexer board offers a neat and reliable solution for managing multiple signals without taking up all your GPIO pins.