Projector Control

[system]

You want to create an array with values in it:
byte cmd[] = {0xBE, 0xEF, 0x03, 0x06, 0x00, 0xBA, 0xD2, 0x01, 0x00, 0x00, 0x60, 0x01, 0x00};

Then, send this command using

Serial.write(cmd, sizeof(cmd));