Last weekend I spent some time working on yet another Node-Red node. This one is an input node that reads the data published by a small sensor platorm from Ti.
The Ti SensorTag is a Bluetooth 4.0 LE platform designed to be a test source for building new BLE and is very accessible at only $25 dollars especially with the following list of sensors on board:
- Ambient Temperature
- IR remote Temperature
- Air Pressure
- 2 Push Buttons
Ti have also set up a open wiki to allow people to document they experiments with the device.
You can find the node in the new node-red-nodes repo on github here it relies on a slightly updated version of Sandeep Mistry‘s node-sensortag, the read me explains how to install my update (until I get round to submitting the pull request) but here is the command to run in the root of your Node-Red directory:
npm install sensortag@https://api.github.com/repos/hardillb/node-sensortag/tarball
(you may need to install the libbluetooth-dev package for Debian/Ubuntu based distros and bluez-libs-devel on Redhat/Fedora first)
Sandeep has now merged my changes so the sensortag node can now be installed normally with npm with:
npm install sensortag
Once installed you need to run Node-RED as root as this is the only way to get access to the BLE functions, then you can add the node to the canvas and configure which sensors are pushed as events
Please feel free to have a play and let me know what you think