I have bought 2 GHI 16x2 character Displays modules (the whole Display, not controller only) but I can barely read anything.
I have to look at it at an angle of about 45° from below to read anything.
I have tried this with both Displays.
My G120 HDR is supplied by the USB DP module with an 6V power supply.
I also tried to dim the backlight by reducing the voltage on the backlight pin, but this does not help eather.
As Test program I used an empty gadeteer Project with Cobra II and chracter Display module connected to Socket R (from RGB)
Any ideas how to improove the contrast of this Display?
If it is like this I can not use it.