node-red-contrib-sm-4relind

This is the node-red node to control Sequent Microsystems Four Relays four Inputs 8-Layer Stackable Card for Raspberry Pi.

Manual Install

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

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

~$ cd ~/.node-red

Run the following command:

~/.node-red$ npm install ~/4relind-rpi/node-red-contrib-sm-4relind

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 the fallowing nodes:

4relind

This node will turn on or off a relay. The card stack level and relay number can be set in the dialog screen or dinamicaly thru msg.stack and msg.relay. The output of the relay can be set dynamically as a boolean, number or string using msg.payload. If you need to set all relays at a time, set relay number to 0 and send thru msg.payload a value that binary corespond to the state of the relays.

4relindrd

This node reads the status of a relay. The card stack level and relay number can be set in the dialog screen or dinamicaly thru msg.stack and msg.relay. This node will output the state of one relay if the relay number is [1..4] or the state of all relays if the relay number is 0

4relindin

This node reads the status of a optically isolated input. The card stack level and input channel number can be set in the dialog screen or dinamicaly thru msg.stack and msg.channel. This node will output the state of one input channel if the channel number is [1..4] or the state of all inputs if the channel number is 0

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.