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[doc]HM-15 BLE USB Dongle datasheet V526 | 
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Version 526
2015-04-28
Notices:
- Add some AT commands.
- Change some workflow of discovery.
Changes and Enhancements:
1. Add AT+COMI command, config Minimum Link Layer connection interval
para1 value: 0 ~ 9; Default: 3(20ms);
0: 7.5ms; 1: 10ms; 2: 15ms; 3: 20ms; 4: 25ms; 5: 30ms; 6: 35ms; 7: 40ms; 8: 45ms; 9: 4000ms
2. Add AT+COMA command, config Maximum Link Layer connection interval
para1 value: 0 ~ 9; Default: 7(40ms);
0: 7.5ms; 1: 10ms; 2: 15ms; 3: 20ms; 4: 25ms; 5: 30ms; 6: 35ms; 7: 40ms; 8: 45ms; 9: 4000ms
3. Add AT+COLA command, config Link Layer connection slave latency
para1 value: 0 ~ 4; Default: 0;
4. Add AT+COSU command, config Link Layer connection supervision timeout
para1 value: 0 ~ 6; Default: 6(6000ms);
0: 100ms; 1: 1000ms; 2: 2000ms; 3: 3000ms; 4: 4000ms; 5: 5000ms; 6: 6000ms;
5. Add AT+COUP command, switch slave role update connection parameter
para1 value 0, 1; Default: 1(Update on);
0: Update off; 1: Update on;
6. Add AT+GAIN command, setup RX gain
para1 value: 0~1
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