Hm-17-2640 version is BLE 4.2 protocol, supporting firmware upgrade, current version V109/V110, support BLE5.0 upgrade, pin compatible with hm-11, hm-13, direct replacement.
Physical store and network synchronous sales, please be sure to confirm the version information and inventory with customer service before shooting, shooting yourself can not be shipped oh.
The main functions of the module are as follows:
1. Master and slave
2. Transmission function
3. Transmission through + remote control function
4. Super large transmission unit (MTU)/Package
5. Abundant AT command control system
6. Support modification service UUID
7. Support the modification of communication mode
8. Support iBeacon
9. Support hibernation and standby
10. Ultra-long distance communication, up to 40-100 meters in ideal environment
11. Faster transmission speed, 2~8KB/S
12. Most AT instruction systems are compatible with hm-10 / hm-11
13. Support universal learning function, which can connect and learn BLE modules of other brands in the market (without password).
HM-10/11 is different from HM-16/17
1. The MCU
Hm-10/11 MCU is 8051 32MHz 8bit
Hm-16/17 MCU is cortex-m0 48MHz 32bit
2. Bluetooth core version
HM - 10/11 is BLE 4.0
HM - 16/17 is BLE 4.1
3. The MTU Size
Hm-10/11 MTU size always is 20Bytes
Hm-16/17 Default MTU size is 256Bytes
Hm-16/17 work with iOS MTU size 158Bytes(if iOS8 and higher), 135Bytes(if <ios8)< span=""></ios8)<>
Hm-16/17 work with another hm-16/17 MTU size is 256Bytes
Hm-16/17 work with hm-10/11 MTU size is 20Bytes
Hm-16/17 work with android MTU size is 253Bytes (almost)
4. Speed
Hm-10/11 speed is about 2KB/seconds
Hm-16/17 speed is about 3-8kb /seconds
5. The Power
HM - 10/11 support from 2.7 V to 3.5 V
HM - 16/17 support from 2.7 V to 5.06 V
5. The Power consumption
Hm-10/11 in automatic sleep mode 50~400uA
Hm-10/11 in active mode 8.5mA
Hm-16/17 in automatic sleep mode 50~1200uA
Hm-16/17 in active mode 6.5mA
6. The Size
Hm-10/11 as same as hm-16/17
