M5StickC Bluetooth

ggudnason

Trying the Blackmagic Bluetooth with compiled code on a M5StickC.
The device looks like its working. In my case the M5StickC comes as Com3 port but when I try to scan for a device I get the following error "[ error ] ofSerial: writeBytes(): serial not inited"

I also tried to print out any values on the screen and it looks like that the Reality field is unable to make an connection to the device.

To debug I also tried to scan for devices directly in the setup part of the code and i can see that working using serial monitor.

What am I missing to get this to work on a M5StickC

AndyJarosz

ggudnason Hey! Yeah the Arduino code needs to be redone, it's a little wonky atm. If it does let you connect, you can try connecting the USB, clearing the pair (through reality field) and re-connecting to the camera. it might take a couple tries.

I'll look into it next week.

ggudnason

thx, It looks like reality field is unable to connect to the m5stickC over com port.
While trying to debug I added a line to the code to print the serial buffer out on the screen on the m5StickC as follows.

void loop()
{
  M5.update();
  while (Serial.available()) {
    //M5.Lcd.drawCentreString("Serial Available",80,34,2);
    String buffer1 = Serial.readString();
    
    parseSerial(buffer1);
    String strPar = parsedValues[0];
    M5.Lcd.drawCentreString(strPar,80,34,2);

When using the Serial Monitor from the Arduino Editor I can then type in any text and it will display on the screen.

How ever when trying to connect using Reality Field I get the error mentioned same applies when pressing Clear.
error ] ofSerial: writeBytes(): serial not inited
Blackmagic Camera Unpaired. Unplug and replug ESP32

Pressing Scan same error and it tries to scan forever.

And not message appears on the screen. So my understanding is that it never managed to talk over the com port.

Looking forward for some information to get this further 🙂

AndyJarosz

ggudnason
Hello!
I've just pushed a new update to both Reality Field and the bluetooth Blackmagic library.
I've not tested it with an M5Stick, just an ESP32 board, but there's no reason it wouldn't work.
https://github.com/MadlyFX/BlueMagic32

Note that the library itself has changed, not just the example sketch. This will only be compatible with RF 0.5 and up.

ggudnason

Thx for the update. I now have a slightly different issue. I have updated reality field and the libraries. Uploaded the new sketch with the addition of the M5 Library. Now I have no com port or device showing in RF so I can't even try to connect or scan for devices. I also tried adding some debugging code to write back to serial what I send in through the serial plotter and that works fine.

AndyJarosz

ggudnason Hrm, thanks for the update. I'll have a look in the next couple days.

AndyJarosz

ggudnason Hey, looks like something has happened in recent BM firmwares that is making bluetooth not work. I've been having trouble even getting unmodified Bluemagic32 to connect to my camera. I'm gonna disable it entirely for now until it can get sorted.

ggudnason

AndyJarosz Ok, I will keep my eye on this in the future. I'm not sure if this applies in my case as I am using the Blackmagic Ursa Broadcast version 1. With not recent firmware update. I can connect to my camera with the phone app. but that app is practically useless. Like I mentioned in my case. I was unable to get the stick to show as a com device within RF. Let me know if you need any testing to be done on devices that you do not have on hand in the future. Thanks for the update.