Hopefully this will save you hours/ days ot time.
Confirm this works with HD1024/5, XT1144/5, and LS424/5 using the USB-C to USB-A/Serial 3.5mm Out dongle. Use a USB to DB9 Adapter to the USB-A output on the dongle and use Port 2 in the project as the documentation is wrong that the USB-A port enumerates to Port 0. The Serial 3.5mm output does NOT work on the LS424/5 at this time.
RS232 Cable uses a null cable, with Tx and Rx swapped, Gnd to Gnd.
On the 3.5mm side output from HD1024/5 or XT1144/5 connect Rx to Tip, Tx to Ring, Gnd to Sleeve, and on the DB9 plug (Epson will use a Female DB9 connector) connect Rx to Pin 3, Tx to Pin 2, and Gnd to Pin 5.
BrightAuthor:Connected Settings:
Presentation Settings > Connectors > Serial:
Port: 0
Protocol: ASCII
Baud Rate: 9600
Data bits: 8
Parity: None
Stop bits: 1
Send EOL: CR
Receive EOL: CR
Invert Signals: [Unchecked]
POWER ON
ASCII (TYPE AS IS INTO "Send > Serial String(EOL))
PWR ON [include the space between PWR and ON]
Decimal
80,87,82,32,79,78 (Putting this here for reference, but it doesn't work.)
POWER OFF
ASCII (TYPE AS IS INTO "Send > Serial String(EOL))
PWR OFF [include the space between PWR and OFF]
Decimal
80,87,82,32,79,70,70 (Putting this here for reference, but it doesn't work.)