---
title: Reachy Mini Metronome
emoji: 🎵
colorFrom: indigo
colorTo: blue
sdk: static
pinned: false
short_description: A metronome app for Reachy Mini
tags:
 - reachy_mini
 - reachy_mini_python_app
---

# Reachy Mini Metronome

A visual and audible metronome for Reachy Mini that uses both antennas as a pendulum (mirror motion) while producing synthesized click sounds.

## Features

- 🎵 BPM control (40-208) with tempo presets
- 🎼 Time signatures (2/4, 3/4, 4/4, 5/4, 6/8)
- 🔊 Accented downbeats (higher pitch on beat 1)
- 🤖 Mirror antenna motion (both swing in opposite directions)

## Installation

```bash
cd reachy_mini_metronome
python -m venv venv
source venv/bin/activate
pip install -e .
pip install "reachy-mini[mujoco]"  # For simulator support
```

## Running the App

### 1. Start the daemon

**Simulator (macOS):**
```bash
source venv/bin/activate
mjpython -m reachy_mini.daemon.app.main --sim
```

**Real Robot:**
```bash
reachy-mini-daemon
```

> **Note:** On macOS, you must use `mjpython` to enable the MuJoCo 3D viewer.

### 2. Open the dashboard

Go to http://localhost:8000 in your browser.

### 3. Start the app

Your app will appear in the **Applications** section. Toggle **On** to start it.

### 4. Open the app UI

Click the ⚙️ icon on the running app tile, or go directly to http://localhost:8042 to control BPM, time signature, and start/stop.