关于iic多机通讯
一个主机通过iic协议控制两个从机上与d13引脚相连的led灯的亮灭主从机程序该如何编啊 求大神啊 arduino的IIC通讯，可以参考官方的例子。http://arduino.cc/en/Tutorial/MasterWriter Master Writer Code - Program for Arduino 1
// Wire Master Writer
// by Nicholas Zambetti <http://www.zambetti.com>
// Demonstrates use of the Wire library
// Writes data to an I2C/TWI slave device
// Refer to the "Wire Slave Receiver" example for use with this
// Created 29 March 2006
// This example code is in the public domain.
#include <Wire.h>
void setup()
{
Wire.begin(); // join i2c bus (address optional for master)
}
byte x = 0;
void loop()
{
Wire.beginTransmission(4); // transmit to device #4
Wire.write("x is "); // sends five bytes
Wire.write(x); // sends one byte
Wire.endTransmission(); // stop transmitting
x++;
delay(500);
}
Slave Receiver Code - Program for Arduino 2
// Wire Slave Receiver
// by Nicholas Zambetti <http://www.zambetti.com>
// Demonstrates use of the Wire library
// Receives data as an I2C/TWI slave device
// Refer to the "Wire Master Writer" example for use with this
// Created 29 March 2006
// This example code is in the public domain.
#include <Wire.h>
void setup()
{
Wire.begin(4); // join i2c bus with address #4
Wire.onReceive(receiveEvent); // register event
Serial.begin(9600); // start serial for output
}
void loop()
{
delay(100);
}
// function that executes whenever data is received from master
// this function is registered as an event, see setup()
void receiveEvent(int howMany)
{
while(1 < Wire.available()) // loop through all but the last
{
char c = Wire.read(); // receive byte as a character
Serial.print(c); // print the character
}
int x = Wire.read(); // receive byte as an integer
Serial.println(x); // print the integer
}
本帖最后由 lty365 于 2014-5-16 11:00 编辑
LINK~ 发表于 2014-5-16 10:37 static/image/common/back.gif
编译出错啊!!!!!
sketch_may17a:7: error: expected constructor, destructor, or type conversion before 'for'
sketch_may17a:21: error: expected unqualified-id before '[' token
sketch_may17a.ino: In function 'void loop()':
sketch_may17a:44: error: redefinition of 'void loop()'
sketch_may17a:11: error: 'void loop()' previously defined here
lty365 发表于 2014-5-16 10:58 static/image/common/back.gif
编译出错啊!!!!!
上面分别是发送和接收的程序，你一起copy了去编译了吧？
你得看注释啊 i7456 发表于 2014-5-16 12:59 static/image/common/back.gif
上面分别是发送和接收的程序，你一起copy了去编译了吧？
你得看注释啊
你好。。在吗 能请教问题吗。。我学机械的 但是毕业设计选的却是这个电子的 一窍不通啊。。能不能帮我遍下程序啊。。。 i2c主机编程没玩过，多从机用51调试成功。
i2c挂了两个从机，1602LCD和DS3231
http://player.youku.com/player.php/sid/XNjg2Mzg5OTgw/v.swf
i7456 发表于 2014-5-16 10:27 static/image/common/back.gif
arduino的IIC通讯，可以参考官方的例子。
http://arduino.cc/en/Tutorial/MasterWriter
就是把官方的例子里从机加一个led（d13）用主机控制从机的led的亮灭 大海 发表于 2014-5-16 13:51 static/image/common/back.gif
就是把官方的例子里从机加一个led（d13）用主机控制从机的led的亮灭
我也学机械的，大学毕业设计搞的PLC编程。
毕业设计还是自己学点东西吧。arduino的东西本来就不难。 i7456 发表于 2014-5-16 13:59 static/image/common/back.gif
我也学机械的，大学毕业设计搞的PLC编程。
毕业设计还是自己学点东西吧。arduino的东西本来就不难。
大神帮忙编一下吧，我看着编好的程序学习下。。真的好难上手啊 大海 发表于 2014-5-16 14:08 static/image/common/back.gif
大神帮忙编一下吧，我看着编好的程序学习下。。真的好难上手啊
花点时间看看,其实很简单的. 其实 我是来看 一个脚 接很多传感器 怎么写的....
没有....
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