Need your help on subject display (red one, looks exacly as sparkfun).
Have received one a week ago and still trying to get it work properly...
The issue is display works only occasionally, randomly shows designated images and text, but much more often i see just random flicker horisontal lines. Moreover, normal images or text appears usually on first wiring, the next or third attempt after reset may be faulty - while on first attempt i can see normal images between flickers, after power off/on it can be only flickers or nothing. So i do afraid that the issue is hardware...
only LED works fine
Connection is to arduino nano 5 v as per sparkfun scheme for such devices i.e. via 10k resistors.
I've checked voltage and current on display and result seems to be a bit disappointing
PIN / Voltage / Current
VCC / 3.28
SCE / 2.32 / 0.46
RST / 0 / 0
D/C / 2.28 / 0.45
DNK / 4.57
SLK / 4.57
is it almost dead ???