Live Screen Mirror
Streams your Snapmaker U1 display to a dedicated touchscreen over local Wi-Fi.
Wireless Snapmaker U1 Companion
Mirror. Monitor. Watch. RFID.
A dedicated 3.5" touchscreen loaded with features and the flexibility to match how you work. Mirror your Snapmaker U1 in near real time, send touch back to the printer, check dryer readings when you want them, watch your printer cameras while prints run, and use it as your RFID filament station—wireless setup so everything is ready to go.
Local network only. No cloud account required.
Core Features
Built to feel effortless every day
Touch Passthrough
Use the external display as a true control surface, not just a viewer.
Video Monitor
Watch a live feed from your printer on SnapTouch. Camera one and camera two when your machine has both.
RFID Filament
Wirelessly configure your printer filament setup from the companion display. Scan a tag and press send.
Smart Interface
Jump between mirror and control, live camera feeds, dryer monitoring, or RFID filament setup with a tap — just the mode you need, when you need it.
Home Assistant Ready
Show dryer status, temperature, and humidity from your selected entity and enable two video feeds.
Phone-Friendly Setup
Configure Wi-Fi, printer IP, and options through a built-in captive portal.
Portability
Fully wireless over your home Wi-Fi. Take SnapTouch from room to room without a cable run back to the printer.
Smart Display Behavior
Auto sleep and touch wake keep the experience clean and practical.
Live Screen Mirror
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How It Works
From unboxing to control in minutes
Power Up
Boot SnapTouch and connect your phone to its setup hotspot.
Configure
Enter Wi-Fi credentials, printer IP, and optional Home Assistant details.
Run Daily
Use mirror mode for printer control or switch to dryer mode when needed.
Technical Snapshot
Precise by design
HardwareESP32 + 3.5" TFT Touch
NetworkLocal Wi-Fi Operation
Printer APIUses the printer's native end points
Setup UXCaptive Portal Configuration
Optional DataHome Assistant REST State
Firmware StackPlatformIO + Arduino
FAQ
Quick answers
First steps & connectivity
Does SnapTouch replace the original U1 screen?
No. It works as a secondary display. It mirrors and controls the original display when in printer mode.
Do I need internet access to use it?
No, it is designed for local network use.
How is setup done initially?
Through the built-in hotspot and captive portal using your phone browser.
How is the display powered?
It uses standard USB power.
Modes, cameras & Home Assistant
Can I use only dryer mode?
Yes. You can enable Home Assistant monitoring and choose the mode behavior.
Can I use only printer mode?
Yes. You can disable Home Assistant monitoring and use printer mode behavior only.
What if I don't have two cameras?
Don't worry—just uncheck the option in configuration.
What if I don't have Home Assistant?
Unfortunately, you won't be able to use Dryer mode or the video feeds. The device will show an error and take you to the right place.
Can I use printer mirror and control mode without Paxx12 extended firmware on my Snapmaker U1?
Unfortunately not. You must install the extended firmware first.
RFID
How does RFID mode work?
After you encode the RFID tags with a simple phone app (details are in the instructions), open RFID mode on SnapTouch, select the toolhead you want to configure, scan the tag, press Send, and you are done. The easy-to-use interface guides you through each step and helps protect you from mistakes.
What RFID tags and brands are supported?
Any NTAG tags encoded for OpenSpool. You can configure the brand you want while encoding with your mobile app. Snapmaker, Bambu, and non-OpenSpool tags are not supported yet; a solution for future releases is in progress.
Versions, purchasing & showcase
What's the difference between DIY, Basic, and Pro versions?
DIY Version: You procure your own hardware, solder, assemble, and program the device with the provided firmware. It can only offer two feature areas: Printer mode and/or Dryer mode.
Basic Version: I ship you a fully assembled, tested, and programmed unit that delivers Printer and/or Dryer mode. It includes a free 3D-printed case.
Pro Version: I ship you a fully assembled, tested, and programmed unit that delivers Printer, Dryer, video feeds, and RFID modes. It includes a free 3D-printed case in your choice of two colors. I also provide Home Assistant examples for the configuration and automations you need. You also receive five RFID tags free so you can use RFID right away. Email is available for product questions and clarifications.
Basic and Pro versions include printed instructions and links to the full documentation.
Where can I see the actual device in action?
See it in action in the Wayne Dryer Box project on MakerWorld. If you are interested in this device, there is a good chance you will want to print that project too. Available here.
Is there a mount and case for this available?
Yes, I've got you. It is available for free on MakerWorld here.
Community, limits & support
Can I have more than one SnapTouch?
Yes. You can run more than one device, but using more than two may add noticeable load to your printer and Home Assistant. Current testing has only been done with up to two.
Is there any cost for this if I can make it myself?
Absolutely not. This project was created for fun and out of passion for technology and gadgets. Many people contributed to make it possible, and we all share that spirit. The DIY firmware and instructions for the community version are free. Pre-assembled Basic and Pro units are paid because they include hardware, assembly, flashing, testing, packaging, and extra Pro hardware/features where applicable. However, if the DIY version helped you and you want to show gratitude, you can buy me a coffee :) here.
Do you provide support or a guarantee?
No formal support or guarantee is provided. This is a community/fun project built by a fellow user and developed in free time. You use it at your own responsibility.
Bring SnapTouch live
Go DIY Version: get your hardware, start with the firmware and setup docs, then have fun.
Don't want to DIY? Purchase.
