Serial usb connection

[blake]

Stephanie, see this thread for actual example code of using the serial blocks to send/receive:

Serial - Can I Use Serial Component to Read from a USB Device?

Hi, I have a USB device that outputs text messages. I connected it to Android phone using OTG adapter. Now, in my AI2 app, I'd like to connect to the device, read from it, and display received data (text). I have this code: [image] When executed, the code fails on call to OpenSerial: [image] Any ideas how to fix this? I know that the device works fine. (I can plug in into a USB port on a laptop and read data from it using python.) Also, the Android phone I am using does support OTG. …

@Mat_RacingMat

same here: the serial extension works fine with arduino MEGA 2560 (RX and TX)
but not with Arduino UNO nor Teensy LC

I did all my testing with an UNO and everything was fine. My understanding is that serial ports operate identically on those three platforms (I've interchanged working code between those three exact devices many times).

It might also be a phone specific issue. With my testing, I was using a Moto G Play XT1609 running Android 7.1.1.

Blake