Ximimark CD74HC4067 16CH Analog Digital Multiplexer Breakout Board Precise Module For Arduino 5 Piece

Cheap and all working

Simple pcb, items received had red board but works the same.

These CD74HC4067 multiplexer breakout boards are excellent for projects where you need to expand I/O without adding extra microcontrollers. Each board gives you 16 channels that can be used for either analog or digital signals, and they’re easy to address with just 4 control pins. The breakout design makes wiring straightforward—perfect for breadboards or jumper setups. I’ve used them with Arduino and ESP32 boards, and they’ve worked flawlessly for reading multiple sensors and inputs. The signal quality is clean and precise, and switching between channels is fast and reliable. The fact that you get 5 boards in one pack is a great value. It allows scaling up to big projects like keypads, control panels, or large arrays of sensors. Build quality is solid—the pins are well-aligned, solder pads are clean, and the boards feel sturdy. If you’re working on projects where pin count is a limitation, these multiplexers are a must-have. Highly recommended for hobbyists, students, and makers looking to simplify large input/output projects

These are great used a couple to make midi controllers. Mine all showed up on time packed ok and they all worked so that's great. Will get more when I need more.

I like these a lot, OK quality at a good price and does what its supposed to. The board edges are very rough and you'd need to sand them down. Then, depending on what your application is and required timing, you wont be able to switch inputs faster than about 3khz. There is a 100ns delay on switching on and off. and switching off will distort your signal at the tail end during that 100ns delay. So - if you are using this you should bargain on your signal being delayed 100ns at the onset and ignore the last 100ns at the offset. for 99% of the applications, this is not going to be an issue at all.