KNOMI V2.0 Round Circular Display for 3D Printer Heads
KNOMI V2.0 Round Circular Display for 3D Printer Heads
KNOMI V2.0 Circular Display Screen for 3D Printer Heads
Upgrade your 3D printer with the KNOMI V2.0 Circular Display Screen — a compact, open-source round display designed specifically for 3D printer heads. With a sleek 39.5mm / 1.6-inch ABS body, this display integrates seamlessly into your printer setup, giving you real-time status at a glance right at the print head.
Key Features
- Reserved BOOT Port: Easily update firmware via USB without disassembling your setup.
- Adjustable Thermistor Pull-Up Resistance: Supports 2.2K pull-up resistance selectable via jumper — maximizing compatibility and convenience.
- 4-Wire Fan Interface: Onboard single-channel 4-wire fan connector with selectable 12V / 5V power support for flexible fan control.
- Dual Independent SPI Output Interfaces: Reserved ports can be used for filament runout detection, material cut-off, or custom DIY functions.
- MAX31865 Onboard: Supports 2-wire and 4-wire PT1000 temperature sensor configurations for precise thermal monitoring.
- CAN & USB Communication: Flexible connectivity options; the 120Ω CAN termination resistance is jumper-selectable, and a CAN expansion port is included for future upgrades.
- Complete Hardware Kit: Comes with terminals, double-way studs, and screws — everything you need for a clean, secure installation.
- Open Source: Fully open-source design, perfect for tinkerers, makers, and professional 3D printing enthusiasts.
Specifications
| Display Shape | Circular / Round |
| Size | Approx. 39.5mm / 1.6 inch |
| Material | ABS |
| Fan Interface | 4-wire, 12V / 5V selectable |
| Temperature Sensor Support | PT1000 (2-wire / 4-wire via MAX31865) |
| Communication | CAN / USB |
| Country of Origin | Made in Mainland China |
Package Includes
- 1 × KNOMI V2.0 Circular Display Screen Set (with terminals, studs, and screws)
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Frequently Asked Questions
Q: Is the KNOMI V2.0 circular display compatible with all 3D printer head types?
A: The KNOMI V2.0 is an open-source display designed for a wide range of 3D printer heads. Its flexible communication options (CAN and USB) and jumper-selectable settings make it compatible with many popular printer platforms. Always verify compatibility with your specific printer firmware and toolhead before purchasing.
Q: Can I update the KNOMI V2.0 firmware without disassembling my printer?
A: Yes! The KNOMI V2.0 features a reserved BOOT port that allows you to connect directly via USB to update the firmware conveniently, without needing to remove or disassemble the display from your printer head.
Q: What temperature sensors does the KNOMI V2.0 support?
A: The KNOMI V2.0 includes an onboard MAX31865 chip, which supports both 2-wire and 4-wire PT1000 temperature sensor configurations, enabling precise and reliable thermal readings for your 3D printing operations.
Q: Does the KNOMI V2.0 support filament runout detection?
A: Yes. The dual independent SPI output interfaces can be configured to support filament runout detection, filament cut-off sensing, or other custom DIY functions, giving you a highly versatile toolhead display solution.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.