4×4 Matrix Membrane Keypad Module CH340 All-in-One IoT Development Shield for

All-in-One IoT Development Shield for STM32 Nucleo & Arduino UNO

With its dual I/O voltage support and onboard voltage regulator circuit

Convenient Connections: Screw terminals allow for easy setup and maintenance

Operating Temperature: -25°C to 85°C

EEPROM: 1 KB

4×4 Matrix Membrane Keypad Module CH340 All-in-One IoT Development Shield forUpgrade your project with the DC 12V 44 Matrix Keypad Membrane Switch, offering a premium soft touch button experience with a lifespan of 100 million keystrokes and robust resistance to environmental conditions. This keypad provides a convenient human interface for microcontroller projects, featuring a matrix configuration of 16 buttons in a 44 layout. Its ultra thin design and adhesive backing allow for easy integration into various applications,