Hi, I have the elegoo penguin robot v2 which can be controlled by ble (BT16 chip says the manual). This bot is based on arduino.
I am able to connect via android app "BLE Scannner" to the bot and send the command "f" as text to the bot. I am sending it to custom characteristics with uuid 0000FFE2-0000-1000-8000-00805F9B34FB. It works, the robot starts walking.
Now I want to get rid of mobile control and want to control it via an arduino based controller with hm10 ble chip with firmware 701 by hmsoft. Connection is established, but nothing happens when I send the character f. Tried with 0 termination or crlf or without any. Nothing happens on robot side. For this test I am connected with hm10 module via ftdi directly with pc. No arduino in between for now.
Tried to set AT+UUID0xFFE0 and AT+UUID0xFFE2 and also I set AT+CHAR0xFFE2. But no success.
Does anyone have an idea? I assume my addressing is not correct. I am new to ble.
Thanks for any help, Butch