Notes - Waveshare 4.2inch e-Paper Module User Manual

4.2inch e-Paper Module User Manual

NOTES

1. For those e-Paper which support partial refresh, you cannot use partial refresh all
the time. A full refresh should be done to clear screen after several times(partial
refresh), otherwise, e-Paper will be damaged and cannot fixed.
2. Three-color e-Paper is normal to be a little 'color' . You can refresh it to white
and keep it upward for storage.
3. The e-Paper cannot be powered on for long time, you must set e-Paper to sleep
mode or power off when it needn't refresh, otherwise, e-Paper keeps in high
voltage status for long time, which will damage e-Paper and cannot be fixed.
4. We suggest you update e-Paper once every 24 hours or at least 10 days
update again. Otherwise, ghost of the last content may cannot be cleared.
5. e-Paper ignores the data sent when it is in sleep mode, you need to initialize it for
properly refreshing.
6. You can adjust border color by controlling 0x3C register. In some of demo codes,
you can adjust Border Waveform Control or VCOM AND DATA INERTVAL SETTING
registers.
7. If you find that the image data you made cannot be properly displayed on e-
Paper, please check the size of image, or change its width and height and try
again.
For details of operating requirement, please refer to datasheet
1
V2.0
to
1
5 / 25