Read from a Seneye USB device

This is a simple NodeRED node to read from a Seneye (https://www.seneye.com) and output a javascript object with the measurement values.

Requirements

• needs libusb installed with sudo apt install libusb-1.0-0 libusb-1.0-0-dev
• node-hid installed using sudo npm install -g node-hid
• normally USB devices are owned by root and in order to read them as a normal user, you need to add rules to /etc/udev/rules.d and trigger these new rules
  • add the file 10-local.rules to /etc/udev/rules.d/
  • add the user who will run NodeRED to the plugdev group sudo usermod -a -G plugdev userid
  • trigger the new rules using sudo udevadm control --reload-rules

Usage

• install using your normal NodeRED installation command into your custom nodes directories
• if no device id is specified it will read from the first Seneye device found
• pipe the payload into whatever you need, such as a JSON converter then a MQTT output node to a public MQTT broker
• display on a public dashboard such as Crouton http://crouton.mybluemix.net/crouton/gettingStarted