rpi-gpio-epaper-7.5in

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

This code has been tested with the Waveshare 7.5inch

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)

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Copyright (c) 2017 David Bushell | MIT License