Other Parts Discussed in Thread: CC2540
Hello
My compatible HM10 BLE (ZS040) runs CC2541 Keyfob demo example with quite good result: LED 1 turns on about 1 second when booting, press button 2 the board stars discovering and blinking LED 2, press this button again, the discovering LED 2 turn off. This board uses Internal RC 32KHZ Clock and the code is disable POWER_SAVING .
"bluetoothctl" from Raspberry pi can connect it and disconnect it immediately 2 times
"hcitool lecc xx:xx:xx:xx:xx:xx" can connect successfully with return "connection handle 71" ; the LED 2 and discovering will turn off.
"hcitool info xx:xx:xx:xx:xx:xx" return error and disconnect; the LED 2 is blinking and discovering turn on again.
Android BLE scanner can connect and also disconnect immediately.
I test with connection interval 100 to 400 ms, slave latency 0 to 1, connection time 10 second but connection problem is still existing. The HMSoft HM10 connect normally by Android BLE scanner or Raspberry Pi without any problems.
Attached picture is command line and info.
Please help to how to fix this connection problem.
Thanks in advance.