HM10 Bluetooth Low Energy v4 Serial Wireless Module

This small size Bluetooth 4.0 TTL transceiver module from PMD Way allows your target device communicate with your iPhone/iPad and Android 4.3+ devices. It's easy to use and completely encapsulated. You can set it as slave or master. You can use AT command set the baudrate.

Specifications:

• TTL data transparent transfer between a host Bluetooth device (iOS or Android 4.3)
• Uses CC2540 Bluetooth IC
• Ultra-low standby power consumption 400uA ~ 800uA
• Default Baud Rate: 9600,8,1,n.
• Coverage up to 60 meters
• Built in antenna
• Power input: 3.6V-6V DC

Pinouts:

• STATE - You can connect a external LED to indicate the bluetooth state. It same as the state LED on the module.
• RXD - Receive data
• TXD - Send data
• GND - Power ground
• VCC - DC power in (3.3V-6VDC)
• KEY - Turn on/off this module by this pin.