node-red-nodes/hardware/sensorTag

node-red-node-sensortag

This node adds support to Node-RED to read from the Texas Instruments SensorTag.

The SensorTag is a Bluetooth LE device hosting the following sensors:

• Ambient & ir Temperature
• Barometric Pressure
• Humidity
• 3 axis Accelerometer
• 3 axis Magnetometer
• 3 axis Gyroscope
• 2 push Buttons

The config node allows the user to enable/disable any of the sensors listed above. The readings from these sensors will be sent as a JSON object payload with the sensor name appended to the topic provided:

• Temperature - { topic: [topic_prefix]/temperature, payload: { ambient: 21.2, object: 33.0 } }
• Barometric Pressure - { topic: [topic_prefix]/pressure, payload: { pres: 1000.1 } }
• Humidity - { topic: [topic_prefix]/humidity , payload: { temp: 21.2, humidity: 88} }
• Accelerometer - { topic: [topic_prefix]/ , payload: { x:0.0, y:9.8, z:0.0 } }
• Magnetometer - { topic: [topic_prefix]/ , payload: { x:0.0, y:0.0, z:0.0 } }
• Gyroscope - { topic: [topic_prefix]/ , payload: { x:0.0, y:0.0, z:0.0 } }
• Buttons - { topic: [topic_prefix]/ , payload: { left: "down", right: "up"} }

The sensorTag library used by this node only supports using 1 SensorTag at once.

NOTE: Node-RED needs to be run as root inorder or access the Linux Bluetooth 4.0 system calls