Small shell-script to read the current values from a Kostal-Piko® Solar Inverter. It runs in a continuous loop & publishes the vals to an MQTT-Broker every 30 secs. Thanks go to Piko-Stats by romualddufour who created a Python tools to talk to the Kostal-Piko. Most of the info I needed to talk to the Piko from the shell I pulled out of that code.