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@chromedshark: Thank you for the detailed answer! The query of the individual values works very well for me. I was just wondering if this could put any strain on the Bluetti if, as I do in my programme, 12 values are queried every 5 seconds? In this case I would try to program it as you have...

@chromedshark: My program fetches one value at a time. Do you do the same? Or is there a way to fetch all values at once?

@chromedshark: Now i have a working ble client! Thank you very much for your help!

@chromedshark: I am going away for 2 - 3 weeks. After that I will be in touch again.

@chromedshark: I have test this function: unsigned int CRC16_2(unsigned char *buf, int len) { unsigned int crc = 0xFFFF; for (int pos = 0; pos < len; pos++) { crc ^= (unsigned int)buf[pos]; // XOR byte into least sig. byte of crc for (int i = 8; i != 0; i--) { // Loop over...

@chromedshark: Many thanks for your help! In the moment this is my biggest problem. I know this is hex code. I think i can read this as: 0103-0024-0001-c401. But I did not understand, where i must insert this in a notify characteristic string like this: "0000ff01-0000-1000-8000-00805f9b34fb"...

Ok, i had make it on windows 10.

I had success with: C:\Users\Thomas\AppData\Local\Programs\Python\Python310>python.exe -m pip install --upgrade pip C:\Users\Thomas\AppData\Local\Programs\Python\Python310\Scripts>pip install 'bleak' C:\Users\Thomas\AppData\Local\Programs\Python\Python310\Scripts>pip install bluetti_mqtt

Can you tell me how i must do this? Or can you send me an example string for the DC-input query?

@chromedshark: Thank you for the quick reply! The two characteristics you mentioned help me a bit. Anyway, now I get a complete connect done! But I'm afraid, I have to deal with the procedure in more detail, since I'm programming in C++. Unfortunately I forgot to mention this in my original...

Great work here! I just signed up here as this may be the only resource at the moment where you can find information on bluettis bluetooth programming. I am currently trying to receive the incoming watts from the DC input via ESP32. However, I am not a bluetooth expert. But I have a small...