TULX — firmware

There is nothing to flash on this page

The TULX has no USB port. It carries a recovery system that installs firmware over your network, so this page only publishes the images.

1. Get the device into recovery: hold the button S1 while connecting the KNX bus and keep it held for 5 s — the LED lights up when it has taken. If the running application is still reachable, its web page has a Restart into Recovery button.
2. Open the device in a browser. If it has no network yet it opens its own access point; the recovery page lets you scan for your network and join it.
3. Under Install from busware, press Check online and pick an image — the device downloads it itself. No file needed.
4. Only if the device cannot reach the internet: download a .bin below and upload it under Install from a file.

Images

File	Application	Version	Size	MD5
firmware_tulx32_esp32c6.bin	ip4knx KNX/IP Gateway KNXnet/IP tunnelling and routing.	1.4.144	1497 KiB	255f2ae58d8e9a6287e408f2252f8b1b
firmware_cdc2net_tulx32.bin	CDC2NET - KNX TP to raw TCP Transparent TP-UART bridge on port 2329, for knxd and FHEM.	0.2.292	1367 KiB	76c80f93305aec1e22d63a0d2aff0ea4
firmware_mcp4knx_tulx32.bin	MCP4KNX - KNX commissioning over MCP Needs the start pass fitted at the factory; a device without one will not start.	0.25.1	1612 KiB	bf5f8639fc9d27ed16be0f3063a723e6

These are raw application images, not full flash images. The recovery verifies the MD5 before it starts what it wrote.

Your own firmware

Any ESP32-C6 application installs the same way. The recovery asks for confirmation because such an image carries no busware marker, and it stays reachable afterwards. Two things to know before you build one:

• The console is on UART0 — this product has no USB serial.
• The device is powered from the KNX bus. Cap the Wi-Fi transmit power at 18 dBm; above that a busy moment resets the board.