I have a RAPS off-grid solar PV system using Outback Power Systems electronics. In the house I have their Mate 2 Remote Controller installed to keep track of it. The Mate 2 mainly displays status, but also can accept a limited number of commands to sent to the inverter/chargers.
The Mate 2 has an RS232 port which I am using to connect to a greenHouse greenMonitor Lite computer for logging and a web interface.
My project is to add a simple display powered by an Arduino Nano featuring State of Charge (SoC), battery voltage, and net current which can be seen across the room. I need to keep the current logging computer, so I need to be able to tap the RS232 connection.
Is it feasible? I thought about just attaching wires to the Tx and ground pins but loading would probably be a problem.
Thanks
The Mate 2 has an RS232 port which I am using to connect to a greenHouse greenMonitor Lite computer for logging and a web interface.
My project is to add a simple display powered by an Arduino Nano featuring State of Charge (SoC), battery voltage, and net current which can be seen across the room. I need to keep the current logging computer, so I need to be able to tap the RS232 connection.
Is it feasible? I thought about just attaching wires to the Tx and ground pins but loading would probably be a problem.
Thanks