Template: E-Paper FAQ
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Revision as of 08:32, 4 October 2017 by Waveshare-eng11 (talk | contribs)
Answer:
The I/O level of Arduino is 5V, and the e-Paper should be driven with 3V3. If your Arduino cant drive the e-Paper successfully, please try to convert the level to 3.3V
You can also try to connect the Vcc pin to the 5V of Arduino to see whether the e-Paper works, but we recommend you not to use 5V for a long time.