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R2F Bluetooth Module 4.2 BLE 4.0 HM-19 CC2640
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BLE 4.1 Bluetooth module HM-19, pin compatible HM-11, HM-13, HM-17, it can be replaced directly

HM-19 is BLE 4.2 protocol, the current version of V109.

 

Main Function

1. master and slave

2. pass through function

3. pass through remote control function

4. super transport unit (MTU) 256Bytes/Package

5. rich AT instruction control system

6. support modification service UUID

7. support changes in communication

8. support iBeacon

9. support sleep standby

10. ultra long distance communication, up to 110 meters

11. faster transmission speed, 2~8KB/S

12., the AT instruction system is compatible with HM-10/HM-11

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