If you are looking for information about how to update the firmware of your FreeDSM, please check the upgrade procedure.

ESP32C3-CORE initial flashing

The FreeDSM is based on Tasmota IoT free software. It is possible to flash the device before the complete assembly ... or after that, but inside the chassis, the "Boot" button is not so accesible (trick: you can use "Left" in joystick, it behaves as "Boot").

To perform these processes, espfuse and esptool are needed. They are available as Python or compiled for different OS:

• Python version
• Multiple OS binaries

Please note that, since this initial flashing, all subsequent upgrades can be performed through the Tasmota web interface.

Firmware and script files are available at the main page of this wiki: firmware-releases

NOTE: Replace the COM99 port with the one detected in your computer, connected to the ESP32.

1 Enabling screen backlight

To enable the Air101 screen backlight, it is needed to "free" the GPIO11 (theorically reserved to provide power to the flash, but the ESP32C3-CORE board provides 3.3V power directly).

Connect the USB-C cable to your computer and push the "Boot" button (around 1 second) of the ESP32 board.

From command line, execute:

espefuse -p COM99 burn_efuse VDD_SPI_AS_GPIO 1

and confirm the efuse burn (not reversible process) writing "BURN"

2 Flashing the ESP32C3-CORE board

Connect the USB-C cable to your computer and push the "Boot" button (around 1 second) of the ESP32 board after the execution of the command:

esptool.exe --chip esp32-c3 --port COM99 --baud 921600 write_flash -fs 4MB -fm dio --erase-all 0x0 .\firmware.factory.bin

If the display is connected, you can use joystick "Left" (GPIO9 - "Boot").

After the flashing, your FreeDSM should boot for the first time. To perform the first configuration, follow the instructions here: Configuration

Later ESP32C3-CORE web upgrades procedure

The updated files to perform the upgrade of your FreeDSM are [available here (2 web update fles)] (../home#firmware-releases)

To perform a complete upgrade of the FreeDSM, it is mandatory to update the Berry script and the firmware (the FreeDSM will maintain the current configuration) if the first two digits do not match (for example, Berry script 2.4.7 is correct for Firmware 2.4 but you must also upgrade the firmware if the current version is 2.3). You can check this version information in the main web page of your device.

To perform the update, access to the web interface of your FreeDSM (you can check the IP address in your router or, physically, access to the configuration option of the device, "AP information" will tell you the IP on the LCD screen.

• First, Berry script (file autoexec.bec): Main Screen, selecting "Consoles" -> "Manage File System" you will see this screen:

Select the new "autoexec.bec" using the uppter left button and select "start upload" (it will overwrite the current one).

• Second, firmware (file firmware.bin): Main Screen, selecting "Firmware Upgrade" you will see this screen:

It is possible to update online (check that the url is: https://gitlab.citic.udc.es/lia2-publico/g4s/-/wikis/fw/firmware.bin) but it is recommended to download the "firmware.bin" and proceed with "Upgrade by file upload" and press "start upgrade"

After that, the FreeDSM will reboot and you will see the version of both in the main screen (Firmware and Script must match the first two numbers in version).