ASL is sending audio or traffic (TX).
All projects
Four installersOrange Pi + Raspberry PiASL3 + HamVOIP
LowVoltageLabsTraffic Lights
See what the node is doing without opening a dashboard: red for local transmit, yellow for received audio, and a green heartbeat while idle.
SUPPORTED BOARDSOrange Pi Zero3 · Raspberry Pi 3B/4B/5B
NODE SOFTWAREASL3 · HamVOIP
DELIVERYFour free installers
VISIBLE NODE STATUS
Three lights. One glance.
The compact module turns node activity into a simple visual language that remains useful across the room.
What the lights mean
Immediate status of ASL—without another screen.
Each installer connects AllStarLink activity to a compatible LowVoltageLabs three-light module while accounting for the GPIO differences among the supported boards and distributions.
ASL is receiving audio or traffic (RX).
Heartbeat—ASL is running but idle.
Why traffic LEDs?
The LEDs on your RF interface, such as an SA818 board, or on a radioless UCI interface show the status of that device. The separate traffic-light display shows whether your node’s ASL application is running, transmitting, receiving, or idle.
See it operate
Traffic LEDs for an AllStarLink node.
The demonstration shows the three-state display responding during actual node operation.
Wiring references
Match the wiring and installer to the platform.
The main node installation and the traffic-light accessory remain deliberately separate projects. Complete and test the node first; then follow the correct traffic-light package.
Choose exactly one
Download the installer that matches your node.
Do not interchange these packages. Board generations and node distributions can use different GPIO handling.
Orange Pi Zero3
The platform-specific installer and wiring path for the successful Orange Pi Zero3 node.
DownloadModels 3B and 4B
One installer for conventional ASL3 nodes running on Raspberry Pi Model 3B or 4B hardware.
DownloadModel 5B
The separate installer required for the Raspberry Pi 5B GPIO and ASL3 environment.
DownloadHamVOIP nodes
The installer prepared specifically for Raspberry Pi nodes using the HamVOIP distribution.
DownloadFour installation paths, one operating idea.
Select the matching platform, review its included instructions, verify the wiring, and install only after the underlying node works correctly.
Before connecting GPIO
Check twice.
Connect once.
A few extra minutes with the wiring diagram can save the board.
Before connecting GPIO
At your own risk. No warranties.
Not sure? Study more first!Never connect a power pin to a ground pin!Check twice—connect once!
Power down before changing wiring. Verify every GPIO connection against the package for your exact board and software. W3ICQ materials are supplied free for amateur-radio experimentation and education, without warranty or guarantee.