I am having a problem getting a DisplayTech 162F to work with an Arduino MEGA. the first problem I perceived to be lack of voltage I could only get just over 4 volts from the Arduino board so I put in the extra power supply which feeds the Arduino MEGA board with power as well as the Breadboard. I now have 5 volts on both boards.
I ought to at this stage say that the code and circuit have been validated in as much as the code and circuit work with another LCD display but will not with the 162F. See pictures.
Anyone else suffered this problem ??
any help gratefully received