4x4 Matrix Keypad raspberry pi camera module 1 x 8cm long stainless

1 x 8cm long stainless steel nail

access control systems

This FeatherWing is fully assembled and ready to use

8MB PSRAM and 16MB of flash storage

5A via USB-C

4x4 Matrix Keypad raspberry pi camera module 1 x 8cm long stainlessPunch 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