From ee76789ce2438e57f98d0d4e76051b1e4aa36813 Mon Sep 17 00:00:00 2001
From: Eugene <eugene@corks.su>
Date: Mon, 22 Dec 2025 03:49:20 +0300
Subject: [PATCH] Added README.md

---
 README.md | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 README.md

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+## Build & Run
+
+```bash
+docker compose build
+docker compose up
+```
+
+## Topic
+
+- `/ultrasonic/raw_data` (`std_msgs/UInt8MultiArray`)
+
+## Parameters
+
+| Parameter | Default | Description |
+|-----------|---------|-------------|
+| `serial_port` | `/dev/ttyUSB0` | Serial port path |
+| `baudrate` | `38400` | Baud rate |
+
+## Custom Parameters
+
+```bash
+ros2 run ultrasonic_sensor ultrasonic_node --ros-args -p serial_port:=/dev/ttyACM0
+```
+