BIGTREETECH KNOMI 2 1.28in Touch Upgrade for Voron StealthBurner

In this review the KNOMI 2 is evaluated as a dedicated upgrade for Voron StealthBurner owners running Klipper. The biggest reason to consider it is straightforward: it converts the printer into a colorful, touch-driven control panel with OTA firmware updates and expandable IoT options, making real-time status and control easier than using only a host. The review focuses on actual use, installation notes, and where the unit fits in a Voron build, not as a universal display for other brand machines.

Key Features

• Voron StealthBurner compatibility: This version is built specifically for Voron StealthBurner printers and supports Klipper, ensuring hardware and firmware expectations align for that platform.
• Customizable UI: KNOMI 2 offers a colorful, customizable interface with new emoticons and states so the control panel can be tailored to match the printer and user preferences.
• OTA firmware updates: Firmware can be updated by dragging files into a flashing web interface, simplifying maintenance without complex toolchains.
• Wireless connectivity and antenna: An external WiFi antenna improves wireless stability for remote control and status updates compared with board-only antennas.
• Expandable IoT interfaces: Multiple expansion ports support external cameras, sensors, and button modules for additional monitoring and automation.
• Open source and 3D models: Files are provided so users can modify the UI and print customized mounting parts for a seamless Voron installation.

Who It's For

Voron StealthBurner owners who run Klipper and want a compact, touch-first local interface will find the KNOMI 2 attractive; it provides quick access to print controls, status previews, and a lively UI that integrates with Voron aesthetics. Hobbyists who like to add cameras, BME280 sensors, or other modules will appreciate the expansion headers and open source firmware.

Users of other brands such as Bambu-lab A1, P1, or X1 should look at the KNOMI versions intended for those machines instead, since this SKU is limited to Voron StealthBurner compatibility. Also, buyers expecting plug-and-play perfection should note some reports of mixed connectivity and setup friction that may require re-crimping or cable attention during installation.

Pros & Cons

Pros

• Touch UI provides clear real-time status and smooth local control for Klipper-based Voron printers.
• Open source firmware and 3D model files let users customize UI and design mounting hardware.
• Expandable ports and external WiFi antenna enable cameras, sensors, and more IoT capabilities.
• OTA firmware flashing makes updates easy without a complex development environment.

Cons

• Connectivity reports are mixed; some users experience intermittent lost communication with the MCU.
• Cable quality and documentation may require extra care during setup or re-crimping for reliable operation.

Specifications

Product	KNOMI 2 1.28in Touch Screen
Compatibility	Voron StealthBurner printers (Klipper only)
Display	Full-view 1.28in touch screen with colorful UI
Connectivity	WiFi with external antenna
Expansion	Camera (OV2640), BME280, button modules, wireless charging support
Open source	Firmware and 3D model files provided

Our Verdict

The KNOMI 2 is a compelling local controller for Voron StealthBurner owners running Klipper who want a customizable, touch-based interface and expansion options. It delivers good value when the installer is comfortable checking cables and following open source files, but buyers should be prepared for occasional connectivity or documentation workarounds during setup.

Frequently Asked Questions

Is this KNOMI 2 compatible with Bambu-lab printers?
No. This version is only for Voron StealthBurner running Klipper; Bambu-lab A1, P1, X1 require a different KNOMI model.

Can I add a camera or sensor to the KNOMI 2?
Yes. The unit supports expansion modules such as OV2640 cameras and BME280 temperature and humidity sensors for extended monitoring.

How are firmware updates handled?
OTA updates are supported via a web flashing interface where you drag the firmware file to update the device, simplifying maintenance.