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bdring / Grbl_Esp32

A port of Grbl CNC Firmware for ESP32
GNU General Public License v3.0
1.72k stars 532 forks source link

Problem with USB connection. #1056

Open IgorPack opened 2 years ago

IgorPack commented 2 years ago

Everything is installed and working great, WebUI, wifi, bluetooth, milling and laser engraving programs, etc.

The problem is that the GRBL Controller application does not see the connected usb devices. Restarting the ESP32, reconnecting the power supply, replacing usb cables, replacing devices (Android) does't give any results. It looks like the problem lies in the ESP32 itself (firmware, settings or something else) or I did something wrong. Has anyone come across this problem and if so please help me figure it out.

Thanks in advance.

MitchBradley commented 2 years ago

Can you connect to it from another machine like a PC? The problem might be that the Android driver for the USB-serial chip does not support the version of the chip that is on your ESP32 module.

Here is a reference for how to add the latest universal driver that supports the most recent versions of CP210x chips. Unfortunately it requires that you recompile the Android Linux kernel. https://www.silabs.com/documents/public/application-notes/AN809.pdf