Hi,
I have a question on using my Teensy 3.2 with audio shield on an external power USB adapter. Basically my code is working fine when connected to the computer but the moment I connect my Teensy to an external adapter nothing happens. I used different USB cables and different adapters (e.g. a large Iphone adapter 5V 2,1A or a 2,5A adapter used for my RPI). I also connected an external power supply to the Vin (5V) directly, but the same thing, nothing works.
What do I do wrong?
Background infor: I developed and tested succesfully my code (based on library code) where I can read and write my voice audio on a SDcard. Next to that I included a LED on port 18 (to test if my Teensy is working on a external adapter) and an external hardware serial1 to send some bytes to an ESP board. This ESP board is not yet connected, so I connected the RX and TX together. During development I, did had some issues with the pin selection for the 4 buttons, led and potential meter (for example, I used pin 7, that is used for i2s1 Tx and I used pin 10 that is occupied for the SDcard) but after switching pins the code is working.
Any suggestions?
Menne
I have a question on using my Teensy 3.2 with audio shield on an external power USB adapter. Basically my code is working fine when connected to the computer but the moment I connect my Teensy to an external adapter nothing happens. I used different USB cables and different adapters (e.g. a large Iphone adapter 5V 2,1A or a 2,5A adapter used for my RPI). I also connected an external power supply to the Vin (5V) directly, but the same thing, nothing works.
What do I do wrong?
Background infor: I developed and tested succesfully my code (based on library code) where I can read and write my voice audio on a SDcard. Next to that I included a LED on port 18 (to test if my Teensy is working on a external adapter) and an external hardware serial1 to send some bytes to an ESP board. This ESP board is not yet connected, so I connected the RX and TX together. During development I, did had some issues with the pin selection for the 4 buttons, led and potential meter (for example, I used pin 7, that is used for i2s1 Tx and I used pin 10 that is occupied for the SDcard) but after switching pins the code is working.
Any suggestions?
Menne