Changes between Version 6 and Version 7 of nodered

Timestamp:

12/17/2021 11:55:41 PM (3 years ago)

Author:

Ryan Erbstoesser

Comment:

update script

nodered

@@ -22 +22 @@
     sudo npm install -g --unsafe-perm node-red #install node-red using npm
     node-red #start the node-red application
+
+Welcome to Node-RED
+===================
+
+17 Dec 23:23:34 - [info] Node-RED version: v2.1.4
+17 Dec 23:23:34 - [info] Node.js  version: v10.19.0
+17 Dec 23:23:34 - [info] Linux 5.15.0-00085-g2ec7c180b810 arm64 LE
+17 Dec 23:23:37 - [info] Loading palette nodes
+17 Dec 23:23:40 - [info] Settings file  : /root/.node-red/settings.js
+17 Dec 23:23:40 - [info] Context store  : 'default' [module=memory]
+17 Dec 23:23:40 - [info] User directory : /root/.node-red
+17 Dec 23:23:40 - [warn] Projects disabled : editorTheme.projects.enabled=false
+17 Dec 23:23:40 - [info] Flows file     : /root/.node-red/flows.json
+17 Dec 23:23:40 - [warn] 
+
+---------------------------------------------------------------------
+Your flow credentials file is encrypted using a system-generated key.
+
+If the system-generated key is lost for any reason, your credentials
+file will not be recoverable, you will have to delete it and re-enter
+your credentials.
+
+You should set your own key using the 'credentialSecret' option in
+your settings file. Node-RED will then re-encrypt your credentials
+file using your chosen key the next time you deploy a change.
+---------------------------------------------------------------------
+
+17 Dec 23:23:40 - [info] Server now running at http://127.0.0.1:1880/
+17 Dec 23:23:40 - [info] Starting flows
+17 Dec 23:23:41 - [info] Started flows
+17 Dec 23:23:41 - [info] [mqtt-broker:c44d6461e1d6d8c3] Connected to broker: mqtt://localhost:1883
+
 }}}
 
@@ -46 +78 @@
 == Gateworks Python Script to send MQTT Messages
 
-The below is a sample python script to pass MQTT messages from the Gateworks SBC to the Node-Red server (broker). The script will pass the Gateworks SBC temperature as the payload and send it specific to the devices serial number. 
+The below is a sample python script to pass MQTT messages from the Gateworks SBC to the Node-Red server (broker). The script will pass the Gateworks SBC temperature as the payload and send it specific to the device's serial number. 
 
 {{{
@@ -74 +106 @@
  client.on_connect = on_connect 
  client.on_message = on_message 
- broker = "122.24.55.93"
+ broker = "172.24.33.93"
  client.connect(broker) 
  client.loop_start()
- time.sleep(5)
+ serialnumber = str(open('/proc/device-tree/serial-number', 'r').read())
+ print(serialnumber)
+ prefix = "gateways/id/"
+ time.sleep(1)
  while True:
     try:
         print("in loop")
         temp = float(open('/sys/class/hwmon/hwmon0/temp1_input', 'r').read().strip())/1000
-        client.publish("gateways/id/45",temp,1)
+        prefix = "gateways/id/"
+        serialnumber = str(open('/proc/device-tree/serial-number', 'r').read().strip('\x00'))
+        topic = prefix + serialnumber
+        client.publish(topic,temp,1)
         print("done publishing")
 
@@ -94 +132 @@
     main(sys.argv)
 
-
 }}}