Changes by last author:
Changed:
*Connect a 2k2 ohm resistor between LCDpin1 (GND) and LCDpin3 (Contrast) |
* Typically 2k2 .. 2k4 ohm resistor between LCDpin1 (GND) and LCDpin3 (Contrast) (best value may vary, adjust) |
PLEASE NOTE THAT STANDARD is DSUB9 male=LCD conn on ECU (and DSUB9 female is ECU RS232 so a male USB-RS232 can be plugged into ECU RS232 but NOT the LCD !), drawing below suggests nonstandard opposite sex |