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--- projects:farmrobot:batteriemanagement [2021/03/21 18:46]
jonas
+++ projects:farmrobot:batteriemanagement [2021/03/21 19:00]
jonas [Modbus Python and Watson-IoT MQTT publish on Raspberry Pi 4B]
@@ Line 104: / Line 104: @@
 ===== Modbus Python and Watson-IoT MQTT publish on Raspberry Pi 4B =====
-Using FTDI USB adapter which can be interfaced on /dev/ttyUSB0
+Using FTDI USB adapter which can be interfaced on /dev/ttyUSB0\\
+Adding the current user to the "dialout" user group to access serial interfaces without root permissions:
     sudo adduser pi dialout
+Installing prerequisites:\\
     sudo apt install python3
     wget https://bootstrap.pypa.io/get-pip.py
@@ Line 234: / Line 235: @@
 ===== Web Interface to view and graph the data =====
+An easy way to set up a web interface is to host a node-red instance on a server, for example on a stationary Raspberry Pi 4, which can be accesses via network or can be made accessible with port forwarding from the internet.\\
 Setting up a Raspberry Pi 4B with docker and docker run portainer.
 Create a new Node-Red Stack with a compose file, which creates a node-red web instance on the device on port 1880.
@@ Line 259: / Line 262: @@
 The node-red webapp can then be accessed via [[http://ip-adress:1880]]\\
+The Node-RED Dashboard module is needed to display the data with node-red\\
+To install, click the Menu Button and choose "Manage palette". Click the "Install" tab and search for "node-red-dashboard".\\
+Then click on install and install in the pop-up window. Then return to the main view.\\
+{{:projects:farmrobot:node-red-palette.png?600|}}

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