Hi Eveyone, @giuliomoro

I have been following the Bela tutorial Using an OLED Screen.

I am using this OLED screen and using the code of the tutorial, picking the correct function from the list on this page (https://github.com/olikraus/u8g2/wiki/u8g2setupc). The patch works and I was able to change the code in the way I wanted.

Unfortunately, the OLED seems to have the same I2C adress than the TrillCraft. I connected them together before I tried changing soldering the pads of the trill to change its addresss.

The screen is not working anymore, I can’t also find access to the TrillCraft (I solder the pad the connection similar to the ADR0 2, only one side of the row).

When I run only the OLED patch (with only the OLED connected) I am getting a error code similar to:

opened i2c file 3
set i2c addr 3c
can't write cmd 0: Connection timed out

Running all detect devices (with only the TrillCraft) I get:

Trill devices detected on bus 1
Address    | Type

But my Trillcraft Isn't detected by other patches such as general print or general-custom-address, now I am always getting this answer:

Unable to identify device
Unable to initialise Trill Craft
Error: unable to initialise audio

Did I burn it both components ? Do I need to find a different combination for soldering the i2c pads of TrillCraft?

max Thank you! the documentation looks much clear. Although that doesn't help me to figuring it out still if the TrillCraft is burned. Any ideas how to find that out?

    Remove any solder jumpers from Trill, check board visually, connect without the OLED.

      running root@bela1 ~$ i2cdetect -y -r 1
      0 1 2 3 4 5 6 7 8 9 a b c d e f
      00: -- -- -- -- -- -- -- -- -- -- -- -- --
      10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
      20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
      30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
      40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
      50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
      60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
      70: -- -- -- -- -- -- -- --

      max Before I do that, could you tell if this message below mean that bela is detecting the sensor or not? (for me, it is hassle to unsolder everything on my instrument)

      Trill devices detected on bus 1
Address    | Type

          RafaeleAndrade could you tell if this message below mean that bela is detecting the sensor or not? (for me, it is hassle to unsolder everything on my instrument)

          That detects no device, just like i2cdetect above. The soldering seems ok. It seems strange that neither the trill nor the oled are being detected: none of them should have been damaged by the procedure you described. Can you try connecting one at a time and double check the wiring? Also check for broke wires

            19 days later

            Hi everyone, an update about this issue: there were some connection problems in the connectors. The screen started to work after powering the battery fully.

            Maybe minibela was missing extra power for both devices?