Checking the hardware

Connect the Espressif Rust Board to your computer. Verify a tiny red control LED lights up.

The device should also expose its UART serial port over USB:

Windows: a USB Serial Device (COM port) in the Device Manager under the Ports section

Linux: a USB device under lsusb. The device will have a VID (vendor ID) of 303a and a PID (product ID) of 1001 -- the 0x prefix will be omitted in the output of lsusb:

$ lsusb | grep USB
Bus 006 Device 035: ID 303a:1001 Espressif USB JTAG/serial debug unit

Another way to see the device is to see which permissions and port is associated to the device is to check the /by-id folder:

$ ls -l /dev/serial/by-id
lrwxrwxrwx 1 root root .... usb-Espressif_USB_JTAG_serial_debug_unit_60:55:F9:C0:27:18-if00 -> ../../ttyACM0

(If you are using a ESP32-C3-DevKitC-02 the command is `$ ls /dev/ttyUSB*` )

macOS: The device will show up as part of the USB tree in system_profiler:

$ system_profiler SPUSBDataType | grep -A 11 "USB JTAG"

USB JTAG/serial debug unit:

  Product ID: 0x1001
  Vendor ID: 0x303a

The device will also show up in the /dev directory as a tty.usbmodem device:

$ ls /dev/tty.usbmodem*