3Pcs HC-05 Wireless bluetooth Serial Transceiver Module Geekcreit for Arduino - products that work with official Arduino boards Eyewear Alarm clocks

Alarm clocks

INCLUDED IS ONE 1

This is VERY important

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Specification:Receiver module: Product Model: XD-RF-5VOperating voltage: DC5VQuiescent Current: 4MAReceiving frequency: 433

3Pcs HC-05 Wireless bluetooth Serial Transceiver Module Geekcreit for Arduino - products that work with official Arduino boards Eyewear Alarm clocksDescription: HC 05 could be setted to master or slave by user. HC 06 can only be master or slave which could be customized. Wiring(only need 4 wires): RX to RXD TX to TXD GND to GND 3. 6V to 6V Power: 3. 3V Note: This module does not suitable for IOS system. Package included: 3 x HC 05 wireless bluetooth serial transceiver module