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