Custom HM-18 BLE4.2 Bluetooth Module Serial Port Transmission 5.0 Master Slave Integrated Small Base Station Test

1. Product parameters

Bluetooth protocol: Bluetooth Specification V4.2 BLE

The default configuration serial port transceiver has no byte limit

Can achieve 60 meters ultra-long-distance communication in an ideal environment

Working frequency: 2.4GHz ISM band

Modulation method: GFSK (Gaussian Frequency Shift Keying)

Transmit power: -23dbm, -6dbm, 0dbm, 6dbm, can be modified by AI command

Sensitivity: ≤-84dBm at 0.1% BER

Security features: Authentication sand eneryption

Support Service: Central & Peripheral

FFEO is service UUID (You can use AT+UUID command to set)

FFE1 is Chae1 UUID (You can use AT+CHAR command to set)

FFE2 is Chae2 UUID (can be opened with AT+FFE2 command)

Power consumption: sleep current 50uA^400uA, normal standby current 3mA, 3.6mA during transmission

Power supply: 2.5^3.7V 50mA

Working temperature: -20 ~ +105 Centigrade

Appearance size: HM-16 27mm * 13mm * 2.2mm

Support serial port firmware upgrade function

2. System function:

The module factory default configuration: default baud rate 9600, N, 8, 1, slave mode, no sleep, transparent transmission + remote control mode.

The HM-16 pin is compatible with our HM-09,

HM-10, HM-10C, HM-12C, HM-18, old customers do not need to change the PCB, directly and easily upgrade.

The main functions are as follows

1. Master and slave

2. Transparent transmission function

3. Transparent transmission + remote control function

4. Large transmission unit (MTU) 256Bytes/Package

5. Rich AT command control system

6. Support to modify service UUID

7. Support to modify the communication method

8. Support iBeacon

9. Support sleep standby

10. Ultra-long-distance communication, up to 60 meters

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

12. The AT command system is compatible with HM-10/HM-11

The difference between HM-10/11 and HM-16/17/18/19

1. MCU
   HM-10/11 MCU is 8051 32MHz 8bit
   HM-16/17 MCU is Cortex-M0 48MHz 32bit
HM-18/19 MCU is Cortex-M0 48MHz 32bit
2. Bluetooth core version
   HM-10/11 is BLE 4.0
   HM-16/17 is BLE 4.2
   HM-18/19 is BLE 5.0
3. MTU Size
   HM-10/11 MTU size always is 20Bytes
   HM-16/17 Default MTU size is 253Bytes
   HM-16/17 work with iOS MTU size 158Bytes(if iOS8 and higher), 135Bytes(if <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)
   HM-18 and HM-19 as same as HM-16/HM-17
4. Speed
   HM-10/11 speed is about 2KB/seconds
   HM-16/17 speed is about 3-8KB/seconds
HM-18/19 speed is about 3-8KB/seconds
5. Power
   HM-10/11 support 2.7~3.5V
   HM-16/17 support 2.2~3.7V
HM-18/19 support 2.2~3.7V
5. Power consumption
   HM-10/11 in automatic sleep mode 0.5~400uA
   HM-10/11 in active mode 8.5mA
   HM-16/17 in automatic sleep mode 0.1~100uA
   HM-16/17 in active mode 2.8mA
   HM-18 and HM-19 as same as HM-16/17
6. Size
   HM-10/11 as same as HM-16/17
   HM-10/11 as same as HM-18/19