125KHz EM4100 RFID Card Read Module RDM630 UART Geekcreit for Arduino - products that work with official Arduino boards (232) XIAO Boards making it suitable for a

making it suitable for a wide range of power control applications

Digital to analog converters are great for sound generation

Coin Type Micro Vibration Motor

small delay due to sound travel

125KHz EM4100 RFID Card Read Module RDM630 UART Geekcreit for Arduino - products that work with official Arduino boards (232) XIAO Boards making it suitable for a125KHz EM4100 RFID Card Read Module The 125KHz Card Mini Module is designed for reading code from 125KHz 134. 2KHz card compatible read only tags and read write a card. It can be applied in office home security, personal identification, access control, anti forgery, interactive toy, and production control systems. This module is easy to use, serial port connects to Arduino MCU after power up when the RFID card enters into the card reading range, this