树莓派 wringPi gpio控制

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坑跌的淘宝,三个传感器能发五天

实在忍不住了先配置下试试,手头还有几个led

先下载安装wiringPi(一个集成的控制GOIO的库)


sudo apt-get install git-coregit config --global user.name='"xxx"git config --global user.email=xx@xx.com

没有git就去安装一下

git clone git://git.drogon.net/wiringPi

git上下载
cd wiringPi./bulid

安装好了就测试一下

gpio -v

gpio version: 2.32Copyright (c) 2012-2015 Gordon HendersonThis is free software with ABSOLUTELY NO WARRANTY.For details type: gpio -warrantyRaspberry Pi Details:  Type: Pi 3, Revision: 02, Memory: 1024MB, Maker: Sony   * Device tree is enabled.  * This Raspberry Pi supports user-level GPIO access.    -> See the man-page for more details    -> ie. export WIRINGPI_GPIOMEM=1


gpio readall

 +-----+-----+---------+------+---+---Pi 3---+---+------+---------+-----+-----+ | BCM | wPi |   Name  | Mode | V | Physical | V | Mode | Name    | wPi | BCM | +-----+-----+---------+------+---+----++----+---+------+---------+-----+-----+ |     |     |    3.3v |      |   |  1 || 2  |   |      | 5v      |     |     | |   2 |   8 |   SDA.1 | ALT0 | 1 |  3 || 4  |   |      | 5V      |     |     | |   3 |   9 |   SCL.1 | ALT0 | 1 |  5 || 6  |   |      | 0v      |     |     | |   4 |   7 | GPIO. 7 |   IN | 1 |  7 || 8  | 1 | ALT5 | TxD     | 15  | 14  | |     |     |      0v |      |   |  9 || 10 | 1 | ALT5 | RxD     | 16  | 15  | |  17 |   0 | GPIO. 0 |  OUT | 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 |   IN | 0 | 35 || 36 | 0 | IN   | 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  | +-----+-----+---------+------+---+----++----+---+------+---------+-----+-----+ | BCM | wPi |   Name  | Mode | V | Physical | V | Mode | Name    | wPi | BCM | +-----+-----+---------+------+---+---Pi 3---+---+------+---------+-----+-----+

之后就开始编辑代码了,等等我的led灯引脚太短了

我去焊两根线就回来

顺便说要这样写代码

#include <wiringPi.h>int main(void){        wiringPiSetup();        pinMode(0,OUTPUT);        for(;;)        {                digitalWrite(0,HIGH);delay(500);                digitalWrite(0,LOW);delay(500);        }}~     
然后运行(注意以上操作都是远程连接树莓派以后做的是在单片机上,但我觉得有交叉编译环境是不是也能在宿主机上编译)


gcc -Wall -o test test.c -lwiringPi



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