71 lines
1.8 KiB
Markdown
71 lines
1.8 KiB
Markdown
# Presence Sensor Project with ESP32-S3 Board and mmWave
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ESPHome configuration for the HMMD mmWave Sensor S3KM1110 on an ESP32-S3 board.
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> **Tested with:** ESPHome version 2025.2.2
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## Features
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- MQTT integration for Home Assistant
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- Optional native Home Assistant API (disabled by default)
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- Status LED via WS2812
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- WiFi fallback Access Point
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- Easy customization via `secrets_template.yaml`
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## Getting Started
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### 1. Prepare secrets.yaml
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Copy the template and add your details:
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```bash
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cp secrets_template.yaml secrets.yaml
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```
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### 2. Adjust device name (optional)
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Change the device name and friendly name at the top of the YAML:
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```yaml
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substitutions:
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device_name: presence_sensor
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friendly_name: "Presence Sensor"
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```
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### 3. Flash your ESP32-S3
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Use ESPHome CLI or Home Assistant ESPHome Add-On.
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### 4. Optional: Enable Home Assistant API
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Uncomment the `api:` section and provide the API encryption key in `secrets.yaml` if you prefer native API over MQTT.
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```yaml
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# api:
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# encryption:
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# key: !secret api_encryption_key
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```
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### 5. Add to Home Assistant
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If using MQTT with discovery enabled, your device will appear automatically.
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## Hardware
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This configuration was tested with the following hardware:
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- ✅ HMMD mmWave Sensor (S3KM1110)
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- [Amazon Link](https://www.amazon.de/gp/aw/d/B0CT8JTMJM)
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- [Waveshare Wiki](https://www.waveshare.com/wiki/HMMD_mmWave_Sensor)
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- ✅ ESP32-S3 board (Waveshare ESP32-S3 Zero)
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- [Amazon Link](https://www.amazon.de/Waveshare-Development-ESP32-S3FH4R2-Castellated-Applications/dp/B0CHYHGYRH?th=1&psc=1)
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- [Waveshare Wiki](https://www.waveshare.com/wiki/ESP32-S3-Zero)
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**Wiring:**
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- ESP32-S3 TX (GPIO7) → Sensor RX
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- ESP32-S3 RX (GPIO6) → Sensor TX
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- Sensor VCC → 3.3V on ESP32-S3
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- Sensor GND → GND on ESP32-S3
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- WS2812 LED Data → GPIO21 on ESP32-S3
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