Coolpi 4b gpio default setting introduce

[大法师]

https://www.cool-pi.com/topic/136/coolpi-4b-gpio-with-python3

GPIO分布如下：

默认信号功能	引脚编号	引脚编号	默认信号功能
3.3V	1	2	5V
/dev/i2c1 sda	3	4	5V
/dev/i2c1 scl	5	6	GND
gpio 47	7	8	Console txd 3.3V TTL
GND	9	10	Console rxd 3.3V TTL
gpio 128	11	12	gpio 39
gpio 129	13	14	GND
gpio 130	15	16	/dev/ttyS2 uart txd 3.3V TTL
3.3V	17	18	/dev/ttyS2 uart rxd 3.3V TTL
spi mosi	19	20	GND
spi miso	21	22	gpio 40
spi clk	23	24	spi cs 0
GND	25	26	spi cs 1
/dev/i2c6 sda	27	28	/dev/i2c6 scl
gpio 131	29	30	GND
gpio 132	31	32	gpio 105
gpio 133	33	34	GND
gpio 134	35	36	gpio 138
gpio 135	37	38	gpio 139
GND	39	40	gpio 115

系统中若无该命令，请将附件文件拷贝到/usr/sbin/，再执行chmod a+x /usr/sbin/gpio_coolpi

gpio_coolpi