4x4 Matrix Keypad raspberry pi camera module 8MB PSRAM and 16MB of

8MB PSRAM and 16MB of flash storage

4 x Pan Head M3 Machine Screw

1 x 8cm long stainless steel nail

cumbersome strands of alligator clips

making it easy to experiment and debug JavaScript code running directly on the microcontroller

4x4 Matrix Keypad raspberry pi camera module 8MB PSRAM and 16MB ofPunch in your secret key (or Jenny's number) into this numeric matrix keypad featuring 16 buttons arranged in a 4x4 grid. The keys are connected in a matrix format, requiring only 8 microcontroller pins (4 columns and 4 rows) for scanning. This keypad includes headers for easy breadboard hookup, requiring light soldering to attach. Alternatively, you can use plain wires. It's a sturdier version of our Membrane 3x4 Matrix Keypad. The left side has four