# Download the latest release
wget https://gitea.wahlberg.se/api/v1/repos/fredrik/sensorpajen/releases/download/v3.0.1/sensorpajen_3.0.1_all.deb

# Install
sudo dpkg -i sensorpajen_3.0.1_all.deb

# Configure
sudo nano /etc/sensorpajen/sensorpajen.env  # Edit MQTT settings
sudo systemctl restart sensorpajen

# View logs
sudo journalctl -u sensorpajen -f

The system package installs:

Application in /opt/sensorpajen/
Configuration in /etc/sensorpajen/
Runtime state in /var/lib/sensorpajen/
Systemd service (runs automatically)

Development Installation

See INSTALL.md for complete development setup.

Configuration

Quick Setup

After installation, configure your MQTT broker and sensors:

# Edit MQTT settings
sudo nano /etc/sensorpajen/sensorpajen.env

# Restart service to apply changes
sudo systemctl restart sensorpajen

Sensor Management (TUI)

The service automatically discovers nearby Bluetooth sensors. You can manage them using the built-in Text UI:

# Launch the management TUI
sudo sensorpajen-tui

The TUI allows you to:

Discovery: View newly discovered sensors and Approve (add to monitoring) or Ignore them.
Configured: View currently monitored sensors, Edit their names, or Remove them.
Ignored: View ignored sensors and Unignore them if you change your mind.

Keybindings:

a: Approve selected sensor
i: Ignore selected sensor
e: Edit sensor name and comment
v: View details (MAC/name/comment)
u: Unignore sensor
Delete: Remove sensor from monitoring
r: Refresh data
q: Quit

When you approve a sensor, it's added to your configuration and the service automatically starts monitoring it.

Legacy CLI Approval (Deprecated)

The recommended workflow is the TUI (sensorpajen-tui). A legacy CLI tool still exists:

sudo sensorpajen-approve-sensors

MQTT Settings

Edit /etc/sensorpajen/sensorpajen.env:

MQTT_HOST=192.168.1.10
MQTT_PORT=1883
MQTT_USER=username
MQTT_PASSWORD=password
MQTT_CLIENT_ID=sensorpajen
MQTT_TOPIC_PREFIX=MiTemperature2

Sensors

Sensors are automatically managed via the approval workflow. You can also manually edit /etc/sensorpajen/sensors.json:

{
  "sensors": [
    {
      "mac": "A4:C1:38:12:34:56",
      "name": "Living Room"
    },
    {
      "mac": "A4:C1:38:AB:CD:EF",
      "name": "Bedroom"
    }
  ]
}

Service Management

System Installation (Debian Package)

# Start/stop service
sudo systemctl start sensorpajen
sudo systemctl stop sensorpajen

# Enable/disable autostart
sudo systemctl enable sensorpajen
sudo systemctl disable sensorpajen

# View status
sudo systemctl status sensorpajen

# View logs (live)
sudo journalctl -u sensorpajen -f

# View last 50 log lines
sudo journalctl -u sensorpajen -n 50

# Uninstall
sudo dpkg -r sensorpajen
# Note: Configuration is preserved in /etc/sensorpajen/
# To remove config: sudo rm -rf /etc/sensorpajen/

Development Installation

Flashing New Thermometers

Important: Flash only one thermometer at a time!

Find MAC address: Use a Bluetooth BLE app to find the thermometer's MAC address. It will appear as LYWSD03MMC.
Download firmware: Get the latest ATC firmware from https://github.com/atc1441/ATC_MiThermometer
Flash firmware:
- Open https://atc1441.github.io/TelinkFlasher.html on your phone
- Click "Connect" and select your thermometer (LYWSD03MMC)
- Click "Do Activation"
- When found, select firmware and click "Start Flashing"
Record MAC address: Note the MAC address (from step 1) and label the thermometer physically with a permanent marker.
Add to configuration: Add the MAC address and name to config/sensors.json
Verify: The thermometer should now appear as ATC_XXXXXX where XXXXXX are the last 3 bytes of the MAC address. MAC addresses always start with A4:C1:38.

Project Structure

sensorpajen/
├── src/sensorpajen/         # Python package
│   ├── main.py              # Application entry point
│   ├── config.py            # Configuration management
│   ├── mqtt_publisher.py    # MQTT client wrapper
│   ├── sensor_reader.py     # Bluetooth sensor reader
│   └── utils.py             # Bluetooth utilities
├── config/                  # Configuration files
│   ├── sensorpajen.env.example
│   └── sensors.json.example
├── systemd/                 # Systemd service files
│   ├── sensorpajen.service
│   └── README.md
├── legacy/                  # Old scripts (deprecated)
├── pyproject.toml          # Python package configuration
└── README.md               # This file

Troubleshooting

System Installation (Debian Package)

Service won't start:

# Check what's wrong
sudo journalctl -u sensorpajen -n 50

# Check configuration is valid
sudo cat /etc/sensorpajen/sensorpajen.env

# Manually test the application
sudo /opt/sensorpajen/venv/bin/python -m sensorpajen.main

MQTT connection issues:

# Verify MQTT settings in the log
sudo journalctl -u sensorpajen | grep MQTT

# Test MQTT connection manually
mosquitto_sub -h <MQTT_HOST> -u <USER> -P <PASSWORD> -t "MiTemperature2/#" -v

Sensor not found:

# Run the TUI to view/approve newly discovered sensors
sudo sensorpajen-tui

# Check recent logs
sudo journalctl -u sensorpajen -n 100

Development Installation

Development

# Clone and setup
git clone <repo-url> ~/sensorpajen
cd ~/sensorpajen
python3 -m venv .venv
source .venv/bin/activate
pip install -e .

# Run directly (without systemd)
python -m sensorpajen.main

# Run tests (when available)
pytest

Migration from Legacy System

See ROADMAP.md for the complete migration plan from the old cron/tmux-based system to the modern systemd service.

License

See license headers in individual source files.

Credits

Bluetooth utilities based on work by Colin GUYON (MIT License)
ATC firmware by atc1441: https://github.com/atc1441/ATC_MiThermometer

Releases 2

sensorpajen v3.0.1 Latest

2025-12-29 15:35:53 +01:00

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