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Member Since: October 23, 2009

Country: United States

  • For the folks that are having troubles with the flickering, this is a very simple explanation. The data sheet says very plainly that the unit operates from between 6-7 vdc. The Arduino only supplies 5 vdc if you are using the regulated voltage. Therefore the display is probably being starved for power. I added a dedicated 7 volt regulator and those problems went away.
    If you are using the serial pack at 115200 baud then you better be sure to have very good wiring between the Arduino and the display. At that baud rate the bit times get very short and if there is any interference or line capacitance then the rise/fall times are going to be all wrong. Try slowing it down some and see if the problems go away.

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