The BLE workbench,
reimagined for Mac.

Scan, connect, and interact with many Bluetooth Low Energy devices at once. Design visual workflows that run on real hardware. Simulate, document, and ship — all from a single elegant app.

Signal Hub for Mac — concurrent BLE connections
Concurrent BLE

Many devices.
One calm cockpit.

Signal Hub treats every BLE connection as a first-class citizen. Scan the room, connect to multiple peripherals in parallel, and switch between them without losing context. Read, write, and subscribe to characteristics with one click — and watch traffic stream in real time.

  • Concurrent scan & connect across as many devices as your radio can hold
  • Per-device sessions with live characteristic explorer and notification stream
  • Smart filters: name, RSSI, service UUID, manufacturer data
  • Auto-reconnect, pairing, and bond management built in
Scan Connect GATT explorer Notifications
Concurrent BLE connections
Visual workflow builder
Visual workflows

Your test plan,
drawn into reality.

Drag, drop, and connect nodes to compose any BLE flow — handshake, OTA, telemetry, edge cases. Each node is a real BLE action. Hit run, and Signal Hub executes the entire workflow against your device, with full visibility into every step.

  • Composable nodes: scan, connect, write, read, wait, branch, assert
  • Loop, retry, and conditional logic without writing a line of code
  • Run once or schedule for regression — the workflow is the spec
  • Version-controlled workspaces keep the team in sync
Workspaces

A home
for every project.

Organize devices, workflows, and notes into workspaces. Each one is a self-contained context — switch projects with a click. Share a workspace with a teammate and they pick up exactly where you left off.

  • Per-workspace devices, workflows, and assets
  • Local-first storage with export anywhere
  • Built for teams: open the same workspace, get the same view
Workspace management
Bind real devices to workflow nodes
Live binding

Bind real devices
to every node — live.

Connect a workflow to physical hardware in seconds. Pick a discovered peripheral, bind it to a node, and watch the workflow drive the device for real — no scripts, no fixtures, no detours through a terminal.

  • Real-time binding of any discovered peripheral to any node
  • Inspect responses, latency, and characteristic values as the workflow runs
  • Step through, pause, and re-run — debug like you would code
Built-in simulator

No hardware?
No problem.

The built-in BLE simulator stands in for any peripheral. Mock services, characteristics, and responses — including the gnarly edge cases that real hardware refuses to reproduce. Build, test, and demo your workflows before the prototype hits your desk.

  • Define virtual peripherals with any service / characteristic shape
  • Scripted responses, delays, and failure modes — reproduce real bugs on demand
  • Mix and match: real devices and simulated ones in the same workflow
Mock services Scripted responses Edge cases
Simulate real devices
Export workflows as PNG and video
Share & document

Beautiful artifacts,
one click away.

Export any workflow as a high-resolution PNG, a screen recording, or a compact summary — ready to drop into a PR, a spec, or a customer report. Documentation becomes a by-product of building, not a chore.

  • One-click PNG export with crisp typography and clear edges
  • Video export of a live workflow run for demos and bug reports
  • Auto-generated run summaries: steps, timings, outcomes

PNG export

Workflows rendered at retina resolution, ready for documentation, PRs, or slide decks.

Video capture

Record a live run with all device traffic overlaid. Perfect for demos and bug reports.

Run summaries

Every workflow run produces a structured summary — steps, timing, results, errors.

Concurrent devices
0
Lines of code required
100%
Local-first
1-click
PNG & video export
See it move

A 60-second tour.

Concurrent connections, workflows, simulator, export — all in motion. The fastest way to feel what Signal Hub actually does.

Signal Hub 1.0.1 — recorded on macOS Sonoma

Build with BLE, finally enjoyable.

Signal Hub is in private beta on macOS. If you spend your days talking to BLE peripherals, we'd love to hand you the keys.