asked
I would like to get the gridsupply value from the Colour Controller on the local network using Wi-Fi arduino 8266 board. Any help would be appreciated.
I'd look at mqtt.
Can't be more specific than that, I'm about to something similar but I will also use node red on a raspberry pi.
Hi;
I'm using MQTT to get information form the Venus. In my case, I use a simple macro from Linux. This is the code:
mosquitto_sub -h venus -t N/$Victron/system/0/Ac/Grid/L1/Power -C 1 >/tmp/Grid &
mosquitto_pub -h venus -t R/$Victron/system/0/Ac/Grid/L1/Power -m ''
You have to substitute $Victron for the ID of your installation.
The first command is made to run in background and listen to the MQTT messages related to Ac/Grid/L1/Power and wait only for one response (-C 1)
The second command ask to the MQTT server for Ac/Grid/L1/Power.
Note that the parameter are two ' no one "
The result is sent to a file /tmp/Grid
