Micro Switch 2 4 Matrix Keyboard 8-bit Button Independent Button...

• Brand: Three phoeniors
• Supply voltage: Standard
• Specification model: Microcontroller external expansion keyboard 4 digits
• Specification model: Single-chip external expansion keyboard 8-bit
• Specification model: Single-chip external expansion keyboard 16-bit

注意：发货PCB板蓝色、绿色随机发 

4、8、16按键

单片机外扩键盘

优质按键

发货清单：

键盘一块

不带线