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ant_plus_sensor

README.md

Ant Plus Sensor

This directory contains scripts to log the Ant-Plus sensors and send the data over MQTT

Ant-Plus Logger.js

ant_plus_logger.js is the only way we can communicate to ant+ devices. It serves as the middle-man between the ANT+ sensors and the DAS MQTT broker. It allows the sensors to show up as a virtual wireless sensor module.

Getting Started

Setting up node.js libraries

Raspberry Pis: install sudo apt install libudev-dev

To install the necessary libraries for node.js you may need to manually install them instead of running npm install.

Run the script with node ant_plus_logger.js.

Sometimes, root permissions are required to connect to the USB dongle, so sudo may be required.

Deployment

To start this script automatically, follow the instructions in the services README.md.

You will also need to ensure the default pi user has permissions to access the ANT+ dongle without sudo. Create the following file in /etc/udev/rules.d/50-antplus.rules and reboot:

# Allow access to ANT+ USB without sudo
# https://www.xmodulo.com/change-usb-device-permission-linux.html
SUBSYSTEMS=="usb", ATTRS{idVendor}=="0fcf", ATTRS{idProduct}=="1008", GROUP="users", MODE="0666"
SUBSYSTEMS=="usb", ATTRS{idVendor}=="0fcf", ATTRS{idProduct}=="1009", GROUP="users", MODE="0666"

Legacy Code

  • Teensy serial communication with the Ant+ can be found here

  • Old Teensy scripts for collecting data can be found here