Flash the UberANT firmware directly from your browser using ESP Web Tools. No drivers, no Python, no PlatformIO required — just Chrome or Edge and a USB cable.
⚠️ Disconnect the 12 V supply from the antenna switch before opening it.
Connect only the USB cable to the ESP8266 controller board.
Flash firmware
UberANT Antenna Switch
MS-S5 / ANTENI.NET webSWITCH · ESP8266 · flashes firmware + web assets
⚠️ Web Serial is not available in this browser.
Please open this page in Google Chrome or Microsoft Edge (desktop, version 89+). Firefox and Safari do not support Web Serial.
Please open this page in Google Chrome or Microsoft Edge (desktop, version 89+). Firefox and Safari do not support Web Serial.
⚠️ Web Serial requires a secure context (HTTPS).
This page must be served over
This page must be served over
https:// — opening the file directly
from disk (file://) will not work.
💡 This flashes both the firmware binary and the LittleFS web-asset image
in one step — the same as running
./firmware/flash.sh --all.
Before you flash
- Remove the front face plate from the antenna switch to expose the controller board.
- Plug a USB cable into the micro-USB port on the ESP8266 controller board.
- Connect the other end to this computer.
- Click Install above, select the serial port that appears, and follow the prompts.
After flashing — first-time WiFi setup
- The device reboots. The OLED shows
ssid: AutoConnectAP. - Connect your phone or laptop to the AutoConnectAP WiFi network.
- Browse to
http://192.168.4.1→ Configure WiFi → enter your SSID + password → Save. - The device reboots and joins your network. The OLED shows the assigned IP for a few seconds.
- Open
http://uberant.local(or the IP shown on the OLED) in a browser.
💡 If you need to bake WiFi credentials into the firmware image at flash time (so the device
joins your network without the captive portal), use
./firmware/flash.sh --ssid MyNet --pass secret from the command line instead.