DCC-EX Native Throttle v0.2.0

What's new

• F0–F28: the Functions panel now exposes all 29 broadcast-synced functions, laid out in decade rows (F0–F9 / F10–F19 / F20–F28).
• Per-button momentary/toggle modes: right-click any function button to flip it between momentary (on while held) and toggle (one edge per press — right for lights and single-toot sounds). Toggle-mode buttons show underlined text. Choices persist to ~/.config/dccex-throttle.json; F3 defaults to toggle.
• Live function state indicators: each button gains a green border while its function is on, driven by the station's <l> broadcasts — so changes from any throttle on the layout show up.

Assets

• dccex-throttle-linux-x86_64 — one-file Linux binary (built on Arch; needs a comparably recent glibc, or run from source).
• macOS build to follow.

Binary: dccex-throttle-macos-arm64.app.zip, one-file PyInstaller build (macOS, Apple Silicon). Unzip and run dccex-throttle.app; the bundle is unsigned, so first launch needs right-click → Open (or xattr -d com.apple.quarantine dccex-throttle.app).

DCC-EX Native Throttle v0.1.1

Changes since v0.1.0:

• Direction control is now a single colour-coded toggle (green FORWARD / orange REVERSE) instead of radio buttons.
• F3 (short whistle) sends one command per press, alternating on/off, so the decoder toots once per click instead of twice.
• UI metrics are keyed off the windowing system, so the window fits on a MacBook screen under aqua while keeping the large-font layout on x11.

Binary: dccex-throttle-linux-x86_64, one-file PyInstaller build (Arch Linux, x86_64). Needs a comparably recent glibc; build from source on older distros.

Binary: dccex-throttle-macos-arm64.app.zip, one-file PyInstaller build (macOS, Apple Silicon). Unzip and run dccex-throttle.app; the bundle is unsigned, so first launch needs right-click → Open (or xattr -d com.apple.quarantine dccex-throttle.app).

DCC-EX Native Throttle v0.1.0

Standalone Linux x86_64 executable of the DCC-EX native-protocol throttle. No installation needed.

Asset updated 2026-09-02: F3 is now a toggle — one command per press, alternating on/off. Decoders that sound on every function edge (short whistle) tooted twice per click with press/release momentary handling; F3 now makes exactly one edge, one toot per click. Also: direction is a single colour-coded toggle (green FORWARD / orange REVERSE) instead of radio buttons.

Downloads

Asset	Size	Notes
dccex-throttle-linux-x86_64	21 MB	Python/Tk build (PyInstaller). TCP and USB serial.

chmod +x dccex-throttle-linux-x86_64
./dccex-throttle-linux-x86_64

Connect over TCP (default 192.168.4.1:2560, the EX-CommandStation AP-mode address) or USB serial at 115200 baud.

Features

• Run tab: throttle slider (0-126), direction toggle, STOP / E-STOP ALL, function buttons F1-F8 (momentary; F3 toggles once per press for edge-triggered whistle sounds)
• Programming tab: service-mode address and CV read/write, CV29 bit editor, CV name lookup, program-on-main writes
• Track power control per district (MAIN/PROG) with live current draw and overload latch
• Console with raw command entry

Notes

• Built on Arch Linux; it needs a comparably recent glibc. For older distros, rebuild from source: python3 -m venv .venv && .venv/bin/pip install pyserial pyinstaller && .venv/bin/pyinstaller --onefile --windowed --name dccex-throttle dccex_throttle.py
• Closing the window sends <0> (track power off) by design.
• Tested against a real EX-CSB1: throttle, direction, and function handling (including the F3 single-toot behaviour) confirmed on the rails.

🤖 Generated with Claude Code

https://claude.ai/code/session_01Q3GRxMpFNE9aAxnSH1j4Pf