esp32-divoom Web Flasher

Wi-Fi Primary WiFi Name (SSID) Primary WiFi Password Secondary WiFi Name Secondary WiFi Password

Show passwords

Device Device name

Give every device its own name, then several of them can run side by side.

WiFi Hostname / mDNS name Bluetooth name

MQTT optional

Leave the broker empty to run without MQTT. Serial and TCP work either way.

Broker Port User Password Client ID Topic pattern

Your browser cannot talk to serial devices. Use Chrome, Edge or Opera on a desktop, or take the configuration image below. Flashing needs a secure context, so open this page over https.

Keeps the firmware that is already on the device and only rewrites your values.

Without flashing from the browser

Download configuration image and write it yourself:

esptool.py write_flash 0x9000 nvs.bin

Good to know

Running more than one device on the same network or broker means hostname, Bluetooth name, client ID and topic pattern have to differ. Two devices sharing a client ID keep kicking each other off the broker, and a shared topic pattern mixes both of them into one tree. The device name takes care of the first three, the topic pattern is yours to set — something like Divoom-Livingroom with divoom/livingroom/%s works well.
Values you leave empty fall back to the defaults the firmware was built with.
Update configuration only: the dialog offers to erase the device first. Leave that checkbox empty — ticking it wipes the firmware and the device stops booting until you run a full install again.