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Hi, I have a problem with Teensy 4.0 programming. It worked as usual, successfully programmed, but yesterday it stopped programming. Seems like there was disconnected power while programming. Now I have descriptor error in device manager on windows 10. If I use Teensy Loader with HEX files, it...

The Serial monitor doesn't works with teensy4.0 in IDE 2.0, but does work in IDE 1.8.13. I can upload a sketch, but if I try to open Serial monitor, I get the message "Not connected. Select a board and a port to connect automatically".

Is Teensyduino support Arduino IDE 2.0.0?

Oh, sorry:)

I'll try to apdate. I can test your version

There is a photo from the oscillograph:

I'm working on sound playing from SD card to MQS pins (10 and 12). There is sound from both channels if I output a sound from a sine, for example (not from SD card). But after initialization SD (SD.begin(SDCARD_CS_PIN)) there is sound from pin 12 only. Pin 10 is not work. I've described this...

thank you a lot:)

1.55 version of what?

Speaker on pin 10 stops working after SD card initialization (SD.begin(SDCARD_CS_PIN))

thx:) There is a video: https://youtu.be/WEkGye7nsIc

It works. So problem in using SD or incorrect using gui

okay, I'm trying

well, actually, I've added pinMode trying to solve problem with sound:) So problem was before I added this.

pinMode(10,OUTPUT) I've tried to delete. Did not helped

Yes, automagically:) and 12 pin working, music from SD card playing in speaker.

photos: https://dropmefiles.com/hwRFm

Teensy 4.0 Teensyduino v1.54 CS - pin 36 MISO - pin 34 MOSI - pin 35 SCK - pin 37 These pins connected to SD card. I using audio amplifier "arduino module amplifier PAM8403 mini 5V 2x3W". It connected to 10 and 12 pins. There is sound from pin 12. Pin 10 don't work, no sound.

In sketch I defined CS pin 36

Channel 12 is working (MISO from SPI). Don't work channel 10 (CS from SPI).

I'm trying play WAV file from SD card. I connect SD to SPI2 (CS pin 36). There are 2 dinamics on 10 and 12 pins (left and right channels). But working left channel only.