Install Print Gateway
Flash the ESP32-S3 Cloud POS Printer Gateway firmware from your browser. Uses Web Serial — Chrome or Edge on desktop required.
- 1Connect the ESP32-S3 to USB. Prefer the native USB port for first install.
- 2Hold BOOT if needed, then click Connect & Install and pick the serial port.
- 3After install, release BOOT / press RESET. SoftAP
ESP32-Printer-XXXXappears for WiFi setup, or open the device IP on LAN.
First install erases flash when prompted. WiFi / MQTT settings live in NVS and can be
reconfigured from the device web UI after boot. Later updates on a live device can use
LAN OTA at
/update.
Configure over Serial
After flashing, set WiFi, MQTT and the printer directly over USB — no SoftAP or LAN needed. Uses Web Serial (Chrome / Edge desktop). Close the installer's serial dialog first, then connect here.
Web Serial is not supported in this browser. Use Chrome or Edge on a desktop computer.Not connected. Click "Connect serial" and pick the device port.