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Hi, I'm trying to connect D32 pro with the lolin epaper display, with the example

https://github.com/wemos/LOLIN_EPD_Library/blob/master/examples/graphicstest_2_13_inch_250x122/graphicstest_2_13_inch_250x122.ino

I'm using these pin connections

3.3V -> 3.3V
BUSY -> None
CS -> 14
SCK -> 18
MOSI -> 23
DC -> 27
RST -> 33 
GND -> GND

but I don't see any change on the epaper display.
Any suggestion is welcome. Thanks

PD: where can I find the pin connection for this epaper and the D1 mini pro?

Hello,

is it possible to do a partial display update and not always do the complete display update?
It is really annoying when the full display is flashing black and white just to update a temperature value...
I would love just to update some single value without affecting the whole display...
If this is already possible could you update the examples to show how to do it, if not is it possible to implement such feature?

The example graphics test endPrintTest does not show up

Isolated the source of the problem being insufficient wait time
Fix is to increase BUSY_WAIT time to 2000ms as per full refresh time found on https://www.waveshare.com/product/2.13inch-e-paper-hat.htm

Hi I'm trying to hook up a Wemos D1 mini (no TFT shield, just regular old hookup wire)
I have not being able to display anything or even blank out the default lolin factory sent displayed text.

I have tried the following configurations

EPaper - D1 mini

3.3V - 3.3V
GND - GND
RST - RST
CS - D0 (I've also tried D4 after reading mike2nl's post)
DC - D8

I've tried both examples

Edit: I've also tried powering the EPD module from an external source and not from the d1 mini 3.3V pin but nothing seems to work

@wemos
Hi guys and girls,

• in the LOLIN_EPD.h is the following defined:
  EPD_BLACK, ///< black color
  EPD_WHITE, ///< white color
  EPD_INVERSE, ///< invert color
  EPD_RED, ///< red color
  EPD_DARK, ///< darker color
  EPD_LIGHT, ///< lighter color
  The EPD_RED is used in the examples: testdrawrects(EPD_RED);
  It is not working at all.

• The only things that is working is Black and White.
  Why is this happen? It is a Waveshare display so far i know.

• The call: EPD.SetTextSize(); with the value 1...4 is not working at all.
  What the hell is going on because the GFX library from Adafruit is used? ;-)

• Have i payed for something that can only show black/white/invers?

• Tested with the Wemos/Lolin ..
  D1 Mini v1.0, v2.0, v3.1
  D1 Mini Pro v2.0
  ePaper 2.13 Shield v1.0.0

• Wemos TFT and I2C Connector Shield for D1 Mini is used too.
  https://github.com/wemos/D1_mini_Examples
  shows: add TFT I2C Connector Shield (V1.1.0 or later) support 5 months ago.
  Which works with the 2.4 TFT Touch and the 1.4 TFT display (including address changes).

So this is not the issue and the adresses are changed for the ePaper 2.13 Shield v1.0.0 too:
/D1 mini/
#define EPD_CS D4 // in place of D0
#define EPD_DC D8 // default

D0 is also not working for EPD_color_name. Only black/white/invers are working.

PLease give some advise or more information. The Wemos WIki page tells nothing in that case.

I have my ePaper 2.13 shield connected to a LOLIN D32 PRO via a TFT cable. I tried to load the "graphicstest" example sketch, but it won't compile. Here is the error message:
EPD-error.txt