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Control e-paper modules on the Raspberry Pi GPIO with Node.js

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rpi-gpio-epaper

Control e-paper modules on the Raspberry Pi GPIO with Node.js

This code has been tested with the Waveshare 1.54inch but should be adaptable for other sizes.

Coming soon...

Usage

Coming soon...

Dependencies

This library uses rpi-gpio.js and node-spi. The former depends on epoll which currently only builds on Linux systems. I develop with Node and Vim on the Raspberry Pi itself.

Sources

This code is based on the Waveshare python demo which provides a handy installation guide:

Raspberry Pi GPIO Pin map

BCM wPi Name Mode V Physical V Mode Name wPi BCM
3.3v 01 -- 02 5v
2 8 SDA.1 IN 1 03 -- 04 5v
3 9 SCL.1 IN 1 05 -- 06 0v
4 7 GPIO. 7 IN 1 07 -- 08 1 ALT5 TxD 15 14
0v 09 -- 10 1 ALT5 RxD 16 15
17 0 GPIO. 0 IN 0 11 -- 12 0 IN GPIO. 1 1 18
27 2 GPIO. 2 IN 0 13 -- 14 0v
22 3 GPIO. 3 IN 0 15 -- 16 0 IN GPIO. 4 4 23
3.3v 17 -- 18 0 IN GPIO. 5 5 24
10 12 MOSI ALT0 0 19 -- 20 0v
9 13 MISO ALT0 0 21 -- 22 0 IN GPIO. 6 6 25
11 14 SCLK ALT0 0 23 -- 24 1 OUT CE0 10 8
0v 25 -- 26 1 OUT CE1 11 7
0 30 SDA.0 IN 1 27 -- 28 1 IN SCL.0 31 1
5 21 GPIO.21 IN 1 29 -- 30 0v
6 22 GPIO.22 IN 1 31 -- 32 0 IN GPIO.26 26 12
13 23 GPIO.23 IN 0 33 -- 34 0v
19 24 GPIO.24 OUT 1 35 -- 36 1 OUT GPIO.27 27 16
26 25 GPIO.25 IN 0 37 -- 38 0 IN GPIO.28 28 20
0v 39 -- 40 0 IN GPIO.29 29 21

Copyright (c) 2017 Waveshare

Hardware connection

EPD Raspberry Pi
VCC 3.3
GND GND
DIN MOSI
CLK SCLK
CS 24 (Physical, BCM: CE0, 8)
D/C 22 (Physical, BCM: 25)
RES 11 (Physical, BCM: 17)
BUSY 18 (Physical, BCM: 24)

Copyright (c) 2017 David Bushell | MIT License

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Control e-paper modules on the Raspberry Pi GPIO with Node.js

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