What was proven
- ASL3/Asterisk 22 and SimpleUSB operational
- HTTP registration on a non-default IAX port
- AllScan web application installed
- Parrot 55553 passed
- Live East Coast Reflector QSO completed
All projects
Guided installerNode 651805Tested August 2026
From a 3D-printer controller to an AllStarLink powerhouse.ASL3, three dashboards & optional DVSwitchon the BIGTREETECH Pi V1.2.1
A board normally found controlling a 3D printer becomes a fully working ASL3 and AllScan node—an unusual, capable, and genuinely fun alternative SBC build.
PLATFORMBIGTREETECH Pi V1.2.1 + CB1
OPERATING SYSTEMDebian 13 Trixie · Linux 7.0
RADIO INTERFACEAllScan UCI80
CLASSIFICATIONCompleted reference build · Guided installer
An unexpected second life
Built to control a 3D printer. Proven as an AllStarLink node.
This inexpensive, feature-rich controller board became a complete ASL3 and AllScan system with a guided installation path for another operator to follow.
The board from every side
Compact hardware with unusually rich connectivity.
The CB1 module sits beneath the red heatsink. Ethernet, multiple USB ports, GPIO, flexible power inputs, and an inexpensive price make this printer-control platform an entertaining—and practical—AllStarLink experiment.
Project overview
BIGTREETECH Pi V1.2.1
An inexpensive, feature-rich printer-controller board repurposed as a proven AllStarLink node using the CB1 module, an AllScan UCI80 interface, and a checkpointed guided installer.
FULL DUPLEX
Transmit and receive at the same time.
The USB communications interface supports simultaneous transmit and receive operation, making this a true full-duplex AllStarLink node—not merely a conventional simplex hotspot.
What the project includes
- START-HERE operator documentation
- Guided installation scripts and supporting files
- Preflight, install, and verify-install checkpoints
- Exact vendor image selection
- Recovery and verification guidance
Known limitations
Documented—not hidden.
- A board-specific analog-audio noise issue is documented in the package
- J8 power selection must match the chosen power input
- Keep the dashboards and management interfaces on a trusted network
Complete release
First prove the core node. Then add only the capabilities you want.
The primary Build ZIP contains the manuals, guided installer, supporting files, and detailed instructions needed to build and prove the ASL3 and AllScan node.
Want even more capability? A separate, optional second-stage installer can add Allmon3 and Supermon 8+ alongside AllScan, giving you three complementary ways to monitor and control your node. It can also install a carefully selected DVSwitch engine, preparing this compact BIGTREETECH Pi for future digital-mode integration. Each addition is individually selectable, so you install only the features you want. The primary ASL3 installation remains unchanged, and DVSwitch stays safely stopped until the operator deliberately completes its configuration.
COMPLETE BUILD ZIP
BIGTREETECH Pi V1.2.1 Build ZIP
One download containing the operator documentation, guided installation scripts, supporting files, and verification material for this build.
DownloadOPTIONAL SECOND STAGE
BIGTREETECH Pi V1.2.1 — Optional Applications
A separate supplemental installer and user manual for adding individually selected Allmon3, Supermon 8+, and DVSwitch components after the primary ASL3 node has been installed and proven.
DownloadUse at your own risk. No warranty. Review the included START-HERE material before installation, follow the power-selection warning, and keep backups of your own configuration.