# Digilent WaveForms MCP Server MCP Server

MCP server for Digilent WaveForms instruments (oscilloscope, AWG, logic analyzer).

**Publisher claimed.** No tool list reported, and Pod has not connected to this server.

## Status

Pod has not dialled Digilent WaveForms MCP Server yet, so everything on this page is what its publisher reported rather than what we observed. Registries describe servers; they do not connect to them. Until a check runs, treat the tool list below as a claim.

## Connect

Published as `ghcr.io/kenosinc/dwf-mcp-server:0.2.1` on oci. Runs locally.

## Known issues

**38 problems reported by people outside the maintainer team.** Issues filed by the project's own owners, members and collaborators are excluded — those are release checklists and internal refactors, not things that will go wrong for you. Showing 12.

### Most discussed

### Add startup diagnostics to detect DWF SDK silent failure conditions

## Summary

Add startup-time environment checks in `server.py` that detect DWF SDK silent failure conditions and emit clear log warnings, instead of letting tools silently produce no physical output.

## Background & Motivation

The DWF SDK has a dangerous failure mode: when certain prerequisites are missing, `FDwfEnum()` returns 0 devices with no error, or API calls succeed but produce no physical signals. This was discovered during Docker USB passthrough debugging (see `docs/debug-docker-silen

[Read the thread](https://github.com/KenosInc/dwf-mcp-server/issues/49) · 2026-03-06 · closed · 2 comments

### AWG output stops immediately after generate_waveform returns (close resets analog_output)

## Problem

Calling `generate_waveform` to start a continuous waveform (`duration=0`) does not produce any signal that survives the tool call. Any follow-up measurement — via `analog_capture`, `measure`, or an external scope — shows no signal at the W1 pin.

## Reproduction

1. Loopback W1 to Scope CH1+ (or attach external scope to W1)
2. Call:

   ```python
   generate_waveform(channel=1, waveform="square",
                     frequency=1000, amplitude=2.5, offset=2.5, duration=0)
   # → retur

[Read the thread](https://github.com/KenosInc/dwf-mcp-server/issues/69) · 2026-04-27 · closed · 1 comment

### Release v0.1.0

## Summary

First release with hardware-validated tools.

## Tasks

- Update `version` in `pyproject.toml` to `0.1.0`
- Update `version` in `server.json` to `0.1.0`
- Final review of `README.md` badges and descriptions
- Create CHANGELOG (optional)
- Push tag `v0.1.0` → GitHub Actions publishes Docker image + MCP Registry

## Files

- `pyproject.toml`
- `server.json`
- `README.md`

## Dependencies

- M0 (environment setup) complete
- M1 (bug fixes) complete
- M2 (power & GPIO) complete
- M3 (SPI

[Read the thread](https://github.com/KenosInc/dwf-mcp-server/issues/27) · 2026-02-27 · closed · 1 comment

### Hardware validation — analog (W1→CH1 loopback)

## Summary

Validate analog tools using a W1 output → CH1 input loopback connection on the AD3.

## Tasks

- Use `generate_waveform` to output each waveform type (sine, square, triangle, ramp-up, ramp-down)
- Use `analog_capture` to capture waveforms and verify correct shape
- Use `measure` to verify all 5 measurement types (frequency, min, max, mean, pk2pk) return reasonable values
- Append results to `docs/hardware-validation.md`

## Files

- `docs/hardware-validation.md`

## Dependencies

- #

[Read the thread](https://github.com/KenosInc/dwf-mcp-server/issues/24) · 2026-02-27 · closed · 1 comment

### Add render_image option to protocol decode tools (SPI/I2C/UART)

## Summary

Extend the `render_image` pattern introduced in PR #88 (analog_capture / digital_capture / measure) to protocol decode tools, so that `spi_transfer` (and future `i2c_transfer` / `uart_transfer`) can return an annotated waveform PNG alongside the decoded frame data.

## Background & Motivation

PR #88 established the dual-output pattern for capture tools: a vision-capable LLM gets a PNG image (overview / pattern recognition) plus `ToolResult.structured_content` JSON (machine-readable 

[Read the thread](https://github.com/KenosInc/dwf-mcp-server/issues/89) · 2026-05-11 · open · 0 comments

### Most recent

### Build Docker image without bundled libdwf — install dependencies only

## Problem

The current Dockerfile downloads and installs both the Adept 2 Runtime **and** the WaveForms SDK (which includes `libdwf.so`) at build time. Since `libdwf.so` is proprietary (Digilent/NI), bundling it in a publicly distributed Docker image raises licensing concerns.

## Approach

- **Public image**: Includes only the Adept 2 Runtime (dependency libraries). `libdwf.so` is **not** bundled.
- **User installation**: Users create a derived Dockerfile that installs the WaveForms SDK as an 

[Read the thread](https://github.com/KenosInc/dwf-mcp-server/issues/43) · 2026-02-27 · closed · 0 comments

### Document libdwf installation and verify AD3 connectivity

## Summary

Document the step-by-step procedure to install the WaveForms SDK (libdwf) on the host machine and verify that an Analog Discovery 3 (AD3) is recognized and usable by `dwf-mcp-server`.

## Background

- `libdwf.so` is proprietary and must be installed on the host (never bundled in Docker).
- `dwfpy` depends on `libdwf.so` at runtime; the server fails at startup if it is missing.
- Users with a freshly connected AD3 need a clear, copy-paste-friendly checklist to go from zero to a worki

[Read the thread](https://github.com/KenosInc/dwf-mcp-server/issues/37) · 2026-02-27 · closed · 0 comments

### Release v0.2.0

## Summary

Major update release including all protocol tools and advanced analog features.

## Tasks

- Update `version` in `pyproject.toml` to `0.2.0`
- Update `version` in `server.json` to `0.2.0`
- Update `README.md` (new tool list)
- Update CHANGELOG
- Push tag `v0.2.0` → GitHub Actions publishes Docker image + MCP Registry

## Files

- `pyproject.toml`
- `server.json`
- `README.md`

## Dependencies

- M6 (I2C, UART, CAN) complete
- M7 (advanced analog) complete

## Size: S

[Read the thread](https://github.com/KenosInc/dwf-mcp-server/issues/34) · 2026-02-27 · closed · 0 comments

### Add AM/FM modulation and custom waveform to generate_waveform

## Summary

Extend `generate_waveform` with AM/FM modulation and custom waveform (arbitrary sample array) support.

## Tasks

- Add `modulation` parameter (AM / FM / none)
- Add `modulation_frequency` and `modulation_depth` parameters
- Add `waveform="custom"` + `samples: list[float]` parameter
- Add mock tests
- Update README with parameter descriptions

## Files

- `src/dwf_mcp_server/tools/analog.py`
- `tests/test_server.py`
- `README.md`

## Size: L

[Read the thread](https://github.com/KenosInc/dwf-mcp-server/issues/33) · 2026-02-27 · open · 0 comments

### Add trigger settings to analog_capture / measure

## Summary

Add trigger configuration parameters to `analog_capture` and `measure` for stable waveform acquisition.

## Tasks

- Add `trigger_source`, `trigger_level`, `trigger_slope` parameters
- Use `scope.setup_edge_trigger()`
- Support no-trigger mode (existing behavior) as the default
- Add mock tests
- Update README with parameter descriptions

## Files

- `src/dwf_mcp_server/tools/analog.py`
- `tests/test_server.py`
- `README.md`

## Dependencies

- #17 (analog API fix)

## Size: M

[Read the thread](https://github.com/KenosInc/dwf-mcp-server/issues/32) · 2026-02-27 · open · 0 comments

### Add device_telemetry tool

## Summary

Add an MCP tool to retrieve AD3 internal telemetry (temperature, voltage, current).

## Tasks

- Read AD3 PCB / FPGA temperature
- Read USB voltage/current, AUX voltage/current
- Implement `device_telemetry(device_index)` tool
- Add mock tests
- Update README with tool description

## Files

- `src/dwf_mcp_server/tools/devices.py`
- `tests/test_server.py`
- `README.md`

## Size: S

[Read the thread](https://github.com/KenosInc/dwf-mcp-server/issues/31) · 2026-02-27 · open · 0 comments

### Add can_send / can_receive tools

## Summary

Expose AD3 CAN protocol functionality as MCP tools.

## Tasks

- Use `device.protocols.can`
- Implement `can_send(device_index, bitrate, id, data, extended)` tool
- Implement `can_receive(device_index, bitrate, timeout)` tool
- Add mock tests
- Update README with tool descriptions

## Files

- `src/dwf_mcp_server/tools/protocols.py`
- `tests/test_server.py`
- `README.md`

## Size: M

[Read the thread](https://github.com/KenosInc/dwf-mcp-server/issues/30) · 2026-02-27 · open · 0 comments

[See all 17 reports Pod holds for Digilent WaveForms MCP Server](/mcp/digilent-waveforms-mcp-server/issues) — of 38 qualified upstream.

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