einktest

https://github.com/wonderunit/einktest/blob/master/src/main.cpp

Overview

(Ignore what is on the screen that is from testing with the Raspberry Pi)

Pinout

Waveshare HAT SPI NodeMCU-32S
5V 5V
GND GND
MISO P19
MOSI P23
SCK CLK
CS P4
RST P26
HRDY P4

serial output:

setup
init reset_to_ready : 1716001
_writeCommand16(0x302) : 208797
GetIT8951SystemInfo : 1
Panel(W,H) = (0,0)
Image Buffer Address = 0
FW Version = 
LUT Version = 
VCOM = -0.00V
VCOM = -0.00V
_PowerOn : 4
refresh : 1
refresh : 1
_PowerOff : 1
_PowerOn : 1
refresh : 1
refresh : 1
refresh : 1
refresh : 1
_PowerOff : 1