This victron-openEVSE controller is a Node-Red implementation using Victron's Venus OS v2.70~5-large ... Other configurations could be supported by changing some software parameters. In addition the ...

A solar charger gathers energy from your solar panels ... If your installation is connected to the internet Victron Remote Management Portal (VRM) provides access to the full power of your MPPT, ...

The SmartSolar charge controller will even recharge a severely depleted battery. It can operate with a battery voltage as low as 0 Volts, provided the cells are not permanently sulphated or otherwise ...

I used a NodeMCU-32s. Also a couple of generic NPN transistors to shift the level of the 5V RS-232 signaling from the Victron unit to the 3.3V needed by the ESP32. A level-shift board could be used ...