Every Geek should have one!

Updating Software

These instructions relate to the following products:

• BCDClockLite
• CWSprintLite

You will need to download the esptool.exe and the binary (.bin) file for the latest software. Place both files in the same folder and open a command window and move into that folder.

Plug the device plugged into a USB port.

The ESP32C3 needs to be in Bootloader mode. To enter this mode, you will need to locate the boot switch and reset switch on the ESP32C3. These are simple momentary push switches located to the right is the USB socket. The boot switch is the lower of the two. Push and hold the boot switch, push and release the reset switch, and then release the boot switch.

Now execute the following command in the command window.

./esptool.exe --chip esp32c3 --baud 921600 --before default_reset write_flash 0x0 CWSprintLite_V0.2_PCB_V1.0.bin

Ensure that the name of the .bin file matches that of the one just downloaded.

Once completed momentarily press the reset button. The device will then do a normal startup.