User's Manual

HF-BL100-CU Low Energy Bluetooh（BLE 4.0）Module User Manual
Shanghai High Flying Electronics Technology Co., Ltd www.hi-flying.com - 29
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when connect to IOS APP ，Apple has their own regulation, for parameter must comply ：
1. IntervalMax*（Slave Latency+1）《=2 seconds
2. IntervalMin>=20ms
3. IntervalMin +20ms<=IntervalMax
4. Slave Latency<=4
5. connSupervision Timeout<=6 seconds
6. IntervalMax*(Slave Latency+1)*3<connSupervisionTimeout
Feedback：
"AT:WRONG\r\n" means invalid parameter, modify failed
"AT:OK\r\n" means success, run with new connect interval
"AT:ERP\r\n" means invalid command, modify failed
4.3.5. Query Connect Parameter
Function：Query module connect parameter
Effective time：immediately
Command：
"AT:CIT?"+<CR><LF>
Feedback：
"AT+CIT-"+IntervalMin+IntervalMax+Slave Latency+connSupervision Timeout+<CR><LF>
IntervalMin：4 character means ，HighByte |...| LowByte;‟0‟~‟9‟ means 0~9，”0200”->
decimal 200*1.25ms
IntervalMax：4 character means，HighByte |...| LowByte;‟0‟~‟9‟ means 0~9，”1000”->
decimal1000*1.25ms
Slave Latency:1 character，‟0‟~‟9‟ means 0~9，
connSupervision Timeout：4 character means ，HighByte|...|LowByte，‟0‟~‟9‟ means
0~9，”2000”-> decimal 2000*10ms
when connect to IOS APP ，Apple has their own regulation, four parameter must comply:
7. IntervalMax*（Slave Latency+1）《=2 seconds
8. IntervalMin>=20ms