node-red-contrib-sm-rtd 1.0.3

A Node-RED node to control Sequent Microsystems RTD Data Acquisition Card

npm install node-red-contrib-sm-rtd

node-red-contrib-sm-rtd

This is the node-red node to control Sequent Microsystems RTD Data Acquisition Stackable Card for Raspberry Pi.

Install

Clone or update the repository, follow the instrutions fron the first page.

In your node-red user directory, tipicaly ~/.node-red,

~$ cd ~/.node-red

Run the fallowing command:

~/.node-red$ npm install ~/rtd-rpi/node-red-contrib-sm-rtd

In order to see the node in the palette and use-it you need to restart node-red. If you run node-red as a service:

~$ node-red-stop
~$ node-red-start

Usage

After install and restart the node-red you will see on the node palete, under Sequent Microsystems category one new node:

rtd node

This node reads one rtd sensor input channel. The card stack level and channel number can be set in the node dialog box or dynamically through msg.stack and msg.channel. The read is triggered by the message input and output can be found in the output message payload as a number representing the temperature readings in degree Clsius.

Important note

This node is using the I2C-bus package from @fivdi, you can visit his work on github here. The inspiration for this node came from @nielsnl68 work with node-red-contrib-i2c.Thank both for the great job.