I’m trying to control an MX0404 HDMI Matrix controller via a USB to Serial cable.
The matrix controller has routing buttons on it, but I need it to be very quick, hence the app.
I can open the serial device, and can see return codes from the device when I use it manually.
The documentation (such as it is) gives the commands I need to send and specifies that they should be in Hex.
0x05 0x55 0x19 0x1D 0x77
should switch output 1 to input 2.
The Serial control seems to be set up correctly (I can see return codes) but specifies that anything transmitted by Serial.Write must be in a string.
It doesn’t seem to work using Serial1.Write (“0x05 0x55 0x19 0x1D 0x77”)
Am I dense, or am I overlooking something?