Uploads pcDuino Example Codes

RT

Chapter1. Arduino Introduction/1-1 led_test.ino

@@ -0,0 +1,18 @@
+/********************************************
+程序名称：led_test
+功能：Arduino控制LED范例代码
+版本：v1.0
+作者：懒兔子 <[email protected]>
+*********************************************/
+int led_pin = 13; // 定义13脚为LED引脚
+void setup()
+{
+  pinMode(led_pin, OUTPUT);     // 设置LED引脚为输出模式
+}
+void loop()
+{
+  digitalWrite(led_pin, HIGH);  // 设置引脚为高电平，LED点亮
+  delay(1000);  // 等待1s
+  digitalWrite(led_pin, LOW);   // 设置引脚为高电平，LED熄灭
+  delay(1000);  // 等待1s
+}

Chapter10. Motor Control/10-1 dc_fan_test.c

@@ -0,0 +1,37 @@
+/********************************************
+程序名称：dc_fan_test
+功能：直流风扇控制范例代码
+版本：v1.0
+作者：懒兔子 <[email protected]>
+*********************************************/
+//包含头文件
+#include <core.h>
+
+//宏定义及全局变量
+int fanPin=10;//GPIO10连接风扇
+
+//功能函数部分
+//设置PWM占空比
+void setDuty(int pin, int percent)
+{
+  int duty = percent*255/100;
+  analogWrite(pin, duty);
+}
+
+//初始化设置部分
+void setup()
+{
+  pinMode(fanPin, OUTPUT);
+}
+
+//循环执行部分
+void loop()
+{
+  //从0-100%循环改变风扇占空比
+  for(int i=0;i<=100;i+=10)
+  {
+    setDuty(fanPin, i);
+    printf("Duty cycle of the fan is %d\%\n", i);
+    delay(3000);
+  } 
+}

Chapter10. Motor Control/10-2 h_bridge_motor.c

@@ -0,0 +1,106 @@
+/********************************************
+程序名称：h_bridge_motor
+功能：H桥驱动直流电机
+版本：v1.0
+作者：懒兔子 <[email protected]>
+*********************************************/
+//包含头文件
+#include <core.h>
+
+//宏定义及全局变量
+//方向定义
+#define FORWARD   0
+#define BACKWARD  1
+#define LEFT      2
+#define RIGHT     4
+
+//控制信号引脚定义
+int pinInA1 = 8;
+int pinInA2 = 11;
+int pinEnA = 9;
+int pinInB1 = 12;
+int pinInB2 = 13;
+int pinEnB = 10;
+
+
+//功能函数部分
+//设置两个电机专项控制小车方向
+void motorSetDirection(int method)
+{
+  switch(method)
+  {
+    //前进
+    case FORWARD:
+      digitalWrite(pinInA1, HIGH);
+      digitalWrite(pinInA2, LOW);
+      digitalWrite(pinInB1, LOW);
+      digitalWrite(pinInB2, HIGH);
+      break;
+
+    //后退
+    case BACKWARD:
+      digitalWrite(pinInA1, LOW);
+      digitalWrite(pinInA2, HIGH);
+      digitalWrite(pinInB1, HIGH);
+      digitalWrite(pinInB2, LOW);
+      break;
+
+    //左转
+    case LEFT:
+      digitalWrite(pinInA1, LOW);
+      digitalWrite(pinInA2, HIGH);
+      digitalWrite(pinInB1, LOW);
+      digitalWrite(pinInB2, HIGH);
+      break;
+
+    //右转
+    case RIGHT:
+      digitalWrite(pinInA1, HIGH);
+      digitalWrite(pinInA2, LOW);
+      digitalWrite(pinInB1, HIGH);
+      digitalWrite(pinInB2, LOW);
+      break;
+
+    default:
+      digitalWrite(pinInA1, LOW);
+      digitalWrite(pinInA2, LOW);
+      digitalWrite(pinInB1, LOW);
+      digitalWrite(pinInB2, LOW);
+      break;
+  }
+}
+
+//通过PWM占空比设置电机转速
+void motorSetSpeed(int spead)
+{
+  analogWrite(pinEnA, spead);
+  analogWrite(pinEnB, spead);
+}
+
+//初始化设置部分
+void setup()
+{
+  pinMode(pinInA1, OUTPUT);
+  pinMode(pinInA2, OUTPUT);
+  pinMode(pinInB1, OUTPUT);
+  pinMode(pinInB2, OUTPUT);
+  pinMode(pinEnA, OUTPUT);
+  pinMode(pinEnB, OUTPUT);
+}
+
+//循环执行部分
+void loop()
+{
+  //设置小车速度
+  motorSetSpeed(120); 
+
+  //循环执行运动指令
+  motorSetDirection(FORWARD);
+  delay(3000);
+  motorSetDirection(BACKWARD);
+  delay(3000);
+  motorSetDirection(LEFT);
+  delay(3000);
+  motorSetDirection(RIGHT);
+  delay(3000);
+}

Chapter10. Motor Control/10-3 servo_test.c

@@ -0,0 +1,49 @@
+/********************************************
+程序名称：servo_test
+功能：舵机控制范例代码
+版本：v1.0
+作者：懒兔子 <[email protected]>
+*********************************************/
+//包含头文件
+#include <core.h>
+
+//宏定义及全局变量
+#define PWM_PERIOD  20000 //PWM周期为20ms（20000us）
+int servoPin = 0;
+
+//功能函数部分
+//设置高电平时间，范围：1000-2000us
+void servoSetPulse(int pin, int pulse)
+{
+  digitalWrite(pin, HIGH);
+  delayMicroseconds(pulse);
+  digitalWrite(pin, LOW);
+  delayMicroseconds(PWM_PERIOD - pulse);
+}
+
+//设置舵机转动角度，范围0-180°
+void servoSetAngle(int pin, int angle)
+{
+  if(angle >= 0 && angle <= 180)
+    servoSetPulse(pin, angle*11+1000);
+}
+
+//初始化设置部分
+void setup()
+{
+  pinMode(servoPin,OUTPUT);
+}
+
+//循环执行部分
+void loop()
+{
+  //0-180°之间循环转动舵机
+  for(int i=0;i<=180;i++)
+  {
+    servoSetAngle(servoPin, i);
+  }
+  for(int i=180;i>=0;i--)
+  {
+    servoSetAngle(servoPin, i);
+  }
+}

Chapter10. Motor Control/10-4 stepper_test.c

@@ -0,0 +1,56 @@
+/********************************************
+程序名称：stepper_test
+功能：步进电机驱动范例代码
+版本：v1.0
+作者：懒兔子 <[email protected]>
+*********************************************/
+//包含头文件
+#include <core.h>
+
+//宏定义及全局变量
+//定义四相输入连接的GPIO
+//A -- GPIO0
+//B -- GPIO1
+//C -- GPIO2
+//D -- GPIO3
+int pinA = 0;
+int pinB = 1;
+int pinC = 2;
+int pinD = 3;
+
+//功能函数部分
+
+//初始化设置部分
+void setup()
+{
+  pinMode(pinA, OUTPUT);
+  pinMode(pinB, OUTPUT);
+  pinMode(pinC, OUTPUT);
+  pinMode(pinD, OUTPUT);
+}
+
+//循环执行部分
+void loop()
+{
+  //双四拍驱动    
+  digitalWrite(pinA,1);
+  digitalWrite(pinB,0);
+  digitalWrite(pinC,0);
+  digitalWrite(pinD,1);
+  delay(2);
+  digitalWrite(pinA,1);
+  digitalWrite(pinB,1);
+  digitalWrite(pinC,0);
+  digitalWrite(pinD,0);
+  delay(2);
+  digitalWrite(pinA,0);
+  digitalWrite(pinB,1);
+  digitalWrite(pinC,1);
+  digitalWrite(pinD,0);
+  delay(2);
+  digitalWrite(pinA,0);
+  digitalWrite(pinB,0);
+  digitalWrite(pinC,1);
+  digitalWrite(pinD,1);
+  delay(2);
+}

Chapter11. Sensors/11-1 DHT11_Lib/dht11.cpp

@@ -0,0 +1,91 @@
+//
+//    FILE: dht11.cpp
+// VERSION: 0.4.1
+// PURPOSE: DHT11 Temperature & Humidity Sensor library for Arduino
+// LICENSE: GPL v3 (http://www.gnu.org/licenses/gpl.html)
+//
+// DATASHEET: http://www.micro4you.com/files/sensor/DHT11.pdf
+//
+// HISTORY:
+// George Hadjikyriacou - Original version (??)
+// Mod by SimKard - Version 0.2 (24/11/2010)
+// Mod by Rob Tillaart - Version 0.3 (28/03/2011)
+// + added comments
+// + removed all non DHT11 specific code
+// + added references
+// Mod by Rob Tillaart - Version 0.4 (17/03/2012)
+// + added 1.0 support
+// Mod by Rob Tillaart - Version 0.4.1 (19/05/2012)
+// + added error codes
+//
+
+#include "dht11.h"
+#include <Arduino.h>
+
+// Return values:
+// DHTLIB_OK
+// DHTLIB_ERROR_CHECKSUM
+// DHTLIB_ERROR_TIMEOUT
+int dht11::read(int pin)
+{
+	// BUFFER TO RECEIVE
+	uint8_t bits[5];
+	uint8_t cnt = 7;
+	uint8_t idx = 0;
+
+	// EMPTY BUFFER
+	for (int i=0; i< 5; i++) bits[i] = 0;
+
+
+	// REQUEST SAMPLE
+	pinMode(pin, OUTPUT);
+	digitalWrite(pin, LOW);
+	delay(36);
+	digitalWrite(pin, HIGH);
+	delayMicroseconds(40);
+	pinMode(pin, INPUT);
+
+	// ACKNOWLEDGE or TIMEOUT
+	unsigned int loopCnt = 10000;
+	while(digitalRead(pin) == LOW)
+		if (loopCnt-- == 0) return DHTLIB_ERROR_TIMEOUT;
+
+	loopCnt = 10000;
+	while(digitalRead(pin) == HIGH)
+		if (loopCnt-- == 0) return DHTLIB_ERROR_TIMEOUT;
+
+	// READ OUTPUT - 40 BITS => 5 BYTES or TIMEOUT
+	for (int i=0; i<40; i++)
+	{
+		loopCnt = 10000;
+		while(digitalRead(pin) == LOW)
+			if (loopCnt-- == 0) return DHTLIB_ERROR_TIMEOUT;
+
+		unsigned long t = micros();
+
+		loopCnt = 10000;
+		while(digitalRead(pin) == HIGH)
+			if (loopCnt-- == 0) return DHTLIB_ERROR_TIMEOUT;
+
+		if ((micros() - t) > 40) bits[idx] |= (1 << cnt);
+		if (cnt == 0)   // next byte?
+		{
+			cnt = 7;    // restart at MSB
+			idx++;      // next byte!
+		}
+		else cnt--;
+	}
+
+	// WRITE TO RIGHT VARS
+        // as bits[1] and bits[3] are allways zero they are omitted in formulas.
+	humidity    = bits[0]; 
+	temperature = bits[2]; 
+
+	uint8_t sum = bits[0] + bits[2];  
+
+	if (bits[4] != sum) return DHTLIB_ERROR_CHECKSUM;
+	return DHTLIB_OK;
+}
+//
+// END OF FILE
+//

Chapter11. Sensors/11-1 DHT11_Lib/dht11.h

@@ -0,0 +1,24 @@
+
+
+#ifndef dht11_h
+#define dht11_h
+
+
+
+#define DHT11LIB_VERSION "0.4.1"
+
+#define DHTLIB_OK				0
+#define DHTLIB_ERROR_CHECKSUM	-1
+#define DHTLIB_ERROR_TIMEOUT	-2
+
+class dht11
+{
+public:
+    int read(int pin);
+	int humidity;
+	int temperature;
+};
+#endif
+//
+// END OF FILE
+//