Termux_CDC_ACM

Octoprint Plugin to print to tty ACM devices on Android through libusb in Termux. It uses libusb and a cdc-acm-driver written in Python.

This als ALPHA!

usblib.py is taken from GitHub - Querela/termux-usb-python: USB access with Python on Termux (Android)

How to use

1. Install Termux and Termux:API apps

• https://play.google.com/store/apps/details?id=com.termux
• https://play.google.com/store/apps/details?id=com.termux.api

2. Inside Termux:

You might want to set up a ssh server to have an easier time typing all that stuff via a remote shell on your computer ( https://wiki.termux.com/wiki/Remote_Access#Using_the_SSH_server ), but you can also punch it into your phone:

pkg update
pkg install python termux-api libusb clang git libexpat
pip install octoprint pyusb pyftdi

3. Make sure your printer connection works

termux-usb -l

should show something like /dev/bus/usb/001/011when the printer is connected (usually via an USB-OTG adapter)

4. Test if Octoprint works

first you can check your current ip using

ip addr

then start octoprint like this.

octoprint serve

If octoprint works correctly on http://<ip-addr>:5000, complete the setup dialog. Then stop it again with Ctrl+C

5. Install the plugin

cd ~/.octoprint/plugins
git clone https://github.com/schuhumi/Termux_CDC_ACM/

6. Start Octoprint again

octoprint serve

You should now see an entry similar to /dev/bus/usb/001/011 in the serialport dropdown menu in Octoprint's webinterface. Choose it and also choose the correct baudrate, then click connect. Now a popup should appear on your Android device asking for Termux's permission to access the usb device, choose yes. Octoprint should now connect to your printer.