Updating ESP32

Updating ESP32 Over the Air (distantly)

If your SLZB-06 device has a LAN connection, you can update the ESP32 firmware remotely via Over-the-Air (OTA) updates feature. To update the firmware via OTA, follow these steps:

  1. Download the latest firmware from official SLZB-06 Firmware repositoryopen in new window;
  2. Go to the web interface of the device;
  3. Go to the System and Tools section. In the "ESP32 Update" card
  • click Choose file;
  • select the firmware (*.bin file) and
  • Click ESP32 OTA Update.
  1. Wait for the firmware to finish and reboot the device.

Updating ESP32 through the browser

  1. Connect your SLZB-06 to the PC.
  2. Follow his link UPDATE FIRMWARE ONLINEopen in new window and press "Update firmware" button at that page.

Updating ESP32 via USB

If your SLZB-06 device is not connected to LAN or you want to flash ESP32 via USB for other reasons, it can be easily done via USB cable. For this purposes you need:

  • A computer with Windows or Mac installed;
  • USB - Type-C cable.

To flash via USB, follow these steps:

  1. Download the flashing software. We recommend using ESP_Flasher, which can be downloaded from this fork of official repository at Githubopen in new window;
  2. Download the latest firmware version from official SLZB-06 Firmware repositoryopen in new window;
  3. Using USB cable, connect SLZB-06 to your computer;
  4. Be sure, that you have downloaded and installed the drivers for USB/UART converter, built in to your SLZB-06.
  1. Run the ESP_Flasher program and
  • Select Serial-port in the Serial port section;
  • In the Firmware section, select the file with your firmware;
  • Press the "Flash ESP" button.
  1. Wait for the firmware to complete.

Updating ESP32 via DIY pinouts