Discount RepRap LCD controller
I use Discount RepRap LCD controller.
The VERY strange thing is that this controller works when it decide.
- Sometimes it starts and all is OK,
- sometimes after good start, the values on the display becomes unreadable (some very strange symbols);
- sometimes the problem disappears and it returns in a normal stage;
- sometimes it shows only two white lines;
- sometimes "Emergency Stop" helps deciding the problem, sometimes - not
I tried with different LCD controllers, different RAMPS, with different cables, different firmwares (even with Marlin). Nothing changes.