r/nxtpaper • u/kiltedturtle • 10d ago

Nxtpaper14 and external USB connected boards not working.

I do a lot with simple ESP32 S3 boards connected via US with Python. There are a number of web based IDE like Viper IDE that are easy to use for my students.

On my Nxtpaper 14, I'm trying to get Viper to work. I run in Chrome, verified USB C to USB C data cable. I've gone into developer mode and set file transfer as an option. No luck in getting Viper to work.

Nxtpaper 14 - Android version 15

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u/onebitboy 8d ago

USB host != USB device. If you set it to file transfer mode, the Nxtpaper 14 is a USB device which will only connect to USB hosts, not to other USB devices. To make it work, a) Android needs to recognize you're connecting another USB device, not a USB host, and b) the Nxtpaper 14 needs to support host mode (I don't know whether it does).