An Arduino sketch to read the current volume and mode settings from an AV1 preprocessor and send them to a Lumagen XE over RS232 to be displayed as an OSD.
- Arduino mega 2560
- Each RS232 serial port requires a MAX2232 chip to adjust levels
- AV1 | serial port 1 | 19(RX), 18(TX)
- Lumagen XE | serial port 2 | 17(RX), 16(TX)