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SN Arduino Hygrothermograph Hygrometer Kit +LCD1602/I2C+DHT11 Install guide

…………………..

DHT11 connect to arduino

Left 1 connect to arduino + 5V,

Left 2 is signal lines connecte to arduino 2,

Right 1 connect arduino GND

IIC LCD1602 to arduino:

GND -GND

VCC – 5V

SDA – A4

SCL – A5

………………..

Code Download:

install guide on instructable

Note:

Arduino code already upload to Arduino, just plug the wire, it will work.

Relate post:

how to find Arduino LCD1602 I2C address is 0x3f or 0x27？

…………………………………

update:2017.09.12

created:2015.12.12

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SNA-100-6dof arduino source code

<pre lang="”LANGUAGE”" line="”0″">#include &lt;Servo.h&gt; 

Servo myservoA; 

Servo myservoB;

Servo myservoC;

Servo myservoD;

Servo myservoE;

Servo myservoF;

int i,pos,myspeed;

int sea,seb,sec,sed,see,sef;

static int v=0;

String mycommand=""; //捕捉串口发来的指令 #auto：自动运行 #com：计算机串口控制 #stop：静止状态

static int mycomflag=2; // #auto：2 自动运行 , #com： 1 计算机控制 #stop：0 静止状态 

void myprint()

{

 sea=myservoA.read();

 seb=myservoB.read();

 sec=myservoC.read();

 sed=myservoD.read();

 see=myservoE.read();

 sef=myservoF.read();
 

 Serial.print("A=");

 Serial.print(sea);

 Serial.print(" B=");

 Serial.print(seb);

 Serial.print(" C=");

 Serial.print(sec);

 Serial.print(" D=");

 Serial.print(sed);

 Serial.print(" E=");

 Serial.print(see);

 Serial.print(" F=");

 Serial.println(sef); 

}

void myservosetup() //舵机初始化到等待状态

{

 sea=myservoA.read();

 seb=myservoB.read();

 sec=myservoC.read();

 sed=myservoD.read();

 see=myservoE.read();

 sef=myservoF.read();
 

 myspeed=500;

 for(pos=0;pos&lt;=myspeed;pos+=1)

 {

 myservoA.write(int(map(pos,1,myspeed,sea,66)));

 myservoB.write(int(map(pos,1,myspeed,seb,90)));

 myservoC.write(int(map(pos,1,myspeed,sec,50)));

 myservoD.write(int(map(pos,1,myspeed,sed,90)));

 myservoE.write(int(map(pos,1,myspeed,see,120)));

 myservoF.write(int(map(pos,1,myspeed,sef,90))); 

 delay(1);

 }

}

void setup() 

{ 

 Serial.begin(9600,SERIAL_8N1);
 

 mycomflag=2; // 机械臂默认上电状态为：2 自动运行

 myservoA.attach(3); // 控制腰部（A）的端口是~3号

 myservoB.attach(5); // 控制大臂（B）的端口是~5号

 myservoC.attach(6); // 控制小臂（C）的端口是~6号

 myservoD.attach(9); // 控制小臂旋转（D）的端口是~9号

 myservoE.attach(10); // 控制腕部（E）的端口是~10号

 myservoF.attach(11); // 控制腕部旋转（F）的端口是~11号
 

 myservoA.write(66);

 myservoB.write(90);

 myservoC.write(55);

 myservoD.write(90);

 myservoE.write(120);

 myservoF.write(90);

}

void loop() 

{ 

 while (Serial.available() &gt; 0) 

 {

 mycommand += char(Serial.read());

 delay(2);

 }

 if (mycommand.length() &gt; 0)

 {

 if(mycommand=="#auto")

 {

 mycomflag=2;

 Serial.println("auto station");

 mycommand="";

 }

 if(mycommand=="#com")

 {

 mycomflag=1;

 Serial.println("computer control station");

 mycommand="";

 myservosetup();

 }

 if(mycommand=="#stop")

 {

 mycomflag=0;

 Serial.println("stop station");

 mycommand="";

 } 

 } 
 

 if(mycomflag==1) //如果是计算机串口控制 1

 { 
 

 for(int m=0;m&lt;mycommand.length();m++) // 

 {

 char ch = mycommand[m]; //读取串口数据

 switch(ch)

 {

 case '0'...'9':

 v = v*10 + ch - '0'; //字符转换成十进制

 break;
 

 case 'a': //如果数据后带a，则表示是一号舵机的数据，比如串口发送85a

 if(v &gt;= 5 || v &lt;= 175 ) myservoA.write(v); //用于设定舵机旋转角度的语句，可设定的角度范围是0°到180°，“V”得到所输入的值而改变角度，比如85a为85度角

 v = 0;

 myprint();

 break;

 case 'b': //如果数据后带b，则表示是二号舵机的数据，比如串口发送85a

 myservoB.write(v); //用于设定舵机旋转角度的语句，可设定的角度范围是0°到180°，“V”得到所输入的值而改变角度，比如90b为90度角

 v = 0;

 myprint();

 break;
 

 case 'c': 

 if(v &gt;= 20 ) myservoC.write(v); 

 v = 0;

 myprint();

 break;

 case 'd': 

 myservoD.write(v); 

 v = 0;

 myprint();

 break;

 case 'e': 

 myservoE.write(v); 

 v = 0;

 myprint();

 break;
 

 case 'f': 

 myservoF.write(v); 

 myprint();

 v = 0;

 break;

 }
 

 } 

 mycommand=""; 
 

 } // end if(mycomflag=2)
 

 if(mycomflag==2) //如果是自动运行状态2 

 { 

 delay(3000); 

 //Serial.println("auto station"); 

 myservosetup();

 myspeed=500;

 for(pos = 0; pos &lt;=myspeed; pos += 1) 

 { 

 myservoA.write(int(map(pos,1,myspeed,66,90))); // 让A从66度旋转到90度 （可修改角度）

 myservoB.write(int(map(pos,1,myspeed,90,70))); //让B从90度旋转到40度 （可修改角度）

 delay(1); 

 }

 delay(1000);

 myspeed=500;

 for(pos = 0; pos &lt;=myspeed; pos += 1) 

 { 

 myservoC.write(int(map(pos,1,myspeed,50,65))); // 

 myservoD.write(int(map(pos,1,myspeed,90,170))); //

 myservoE.write(int(map(pos,1,myspeed,90,5))); 

 delay(1); 

 }

 myspeed=1000;

 for(pos = 0; pos &lt;=myspeed; pos += 1) 

 { 

 myservoB.write(int(map(pos,1,myspeed,70,90))); // 

 myservoC.write(int(map(pos,1,myspeed,65,50))); //

 delay(1); 

 }

 myspeed=500;

 for(pos = 0; pos &lt;=myspeed; pos += 1) 

 { 

 myservoC.write(int(map(pos,1,myspeed,50,45))); // 

 myservoD.write(int(map(pos,1,myspeed,170,90))); //

 myservoE.write(int(map(pos,1,myspeed,5,50)));

 myservoF.write(int(map(pos,1,myspeed,90,40)));

 delay(1); 

 }

 myspeed=1000;

 for(pos = 0; pos &lt;=myspeed; pos += 1) 

 { 

 myservoA.write(int(map(pos,1,myspeed,90,140))); // 

 myservoF.write(int(map(pos,1,myspeed,40,130))); 

 delay(1); 

 } 

 myspeed=500;

 for(pos = 0; pos &lt;=myspeed; pos += 1) 

 { 

 myservoA.write(int(map(pos,1,myspeed,140,90))); // 

 myservoC.write(int(map(pos,1,myspeed,45,50))); // 

 myservoB.write(int(map(pos,1,myspeed,90,70))); //

 myservoE.write(int(map(pos,1,myspeed,50,120))); //

 delay(1); 

 } 

 }
 

 if(mycomflag==0) //如果是静止状态0

 {

 myservosetup();

 }

}</pre>
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arduino code:Acrylic Arduino 4DOF robot arm SNM-1100

<pre lang="”LANGUAGE”">#include &lt;Servo.h&gt;

Servo myservo1;

Servo myservo2;

Servo myservo3;

Servo myservo4;

int potpin1 = 0;

int potpin2 = 1;

int potpin3 = 2;

int potpin4 = 3;

int val1;

int val2;

int val3;

int val4;



int Value1;

int Value2;

int Value3;

int Value4;

void setup()

{

 myservo1.attach(11);

 myservo2.attach(10);

 myservo3.attach(9);

 myservo4.attach(6);

 Serial.begin(9600);

}

///////////////////////////////////////////////////

#define FILTER_N 0

int i = 0;

int Filter1() {

 int new_value;

 new_value = analogRead(potpin1);

 if (Value1 != new_value) {

 i++;

 if (i &gt; FILTER_N) {

 i = 0;

 Value1 = new_value;

 }

 }

 else

 i = 0;

 return Value1;

}

/////////////////////////////////////////////////



int j = 0;

int Filter2() {

 int new_value;

 new_value = analogRead(potpin2);

 if (Value2 != new_value) {

 j++;

 if (j &gt; FILTER_N) {

 j = 0;

 Value2 = new_value;

 }

 }

 else

 j = 0;

 return Value2;

}

////////////////////////////////////////////////////

int k = 0;

int Filter3() {

 int new_value;

 new_value = analogRead(potpin3);

 if (Value3 != new_value) {

 k++;

 if (k &gt; FILTER_N) {

 k = 0;

 Value3 = new_value;

 }

 }

 else

 k = 0;

 return Value3;

}

///////////////////////////////////////////////////////

int m = 0;

int Filter4() {

 int new_value;

 new_value = analogRead(potpin4);

 if (Value4 != new_value) {

 m++;

 if (m &gt; FILTER_N) {

 m = 0;

 Value4 = new_value;

 }

 }

 else

 m = 0;

 return Value4;

}

void loop()

{

 val1 = Filter1();

 val1 = map (val1, 0, 1023, 120, 150);

 myservo1.write(val1);

 delay(1);

 Serial.print("val1=");

 Serial.print(val1);

 Serial.print(",");



 val2 = Filter2();

 val2 = map (val2, 0, 1023, 0, 179);

 myservo2.write(val2);

 delay(1);

 Serial.print("val2=");

 Serial.print(val2);

 Serial.print(",");

 val3 = Filter3();

 val3 = map (val3, 0, 1023, 0, 179);

 myservo3.write(val3);

 delay(1);

 Serial.print("val3=");

 Serial.print(val3);

 Serial.print(",");
 

 val4 = Filter4();

 val4 = map (val4, 0, 1023, 40, 179);

 myservo4.write(val4);

 delay(1);

 Serial.print("val4=");

 Serial.print(val4);

 Serial.println(",");



}</pre>
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Arduino LCD thermometer code

<pre lang="”LANGUAGE”">double Fahrenheit(double celsius) 

{

 return 1.8 * celsius + 32;

} //摄氏温度度转化为华氏温度
 

double Kelvin(double celsius)

{

 return celsius + 273.15;

} //摄氏温度转化为开氏温度
 

// 露点（点在此温度时，空气饱和并产生露珠）

// 参考: [url=http://wahiduddin.net/calc/density_algorithms.htm]http://wahiduddin.net/calc/density_algorithms.htm[/url] 

double dewPoint(double celsius, double humidity)

{

 double A0= 373.15/(273.15 + celsius);

 double SUM = -7.90298 * (A0-1);

 SUM += 5.02808 * log10(A0);

 SUM += -1.3816e-7 * (pow(10, (11.344*(1-1/A0)))-1) ;

 SUM += 8.1328e-3 * (pow(10,(-3.49149*(A0-1)))-1) ;

 SUM += log10(1013.246);

 double VP = pow(10, SUM-3) * humidity;

 double T = log(VP/0.61078); // temp var

 return (241.88 * T) / (17.558-T);

}
 

// 快速计算露点，速度是5倍dewPoint()

// 参考: [url=http://en.wikipedia.org/wiki/Dew_point]http://en.wikipedia.org/wiki/Dew_point[/url]

double dewPointFast(double celsius, double humidity)

{

 double a = 17.271;

 double b = 237.7;

 double temp = (a * celsius) / (b + celsius) + log(humidity/100);

 double Td = (b * temp) / (a - temp);

 return Td;

}
 

#include &lt;dht11.h&gt;

#include &lt;Wire.h&gt;

#include &lt;LiquidCrystal_I2C.h&gt;
 

LiquidCrystal_I2C lcd(0x27,16,2); // set the LCD address to 0x27 for a 16 chars and 2 line display
 

dht11 DHT11;
 

#define DHT11PIN 2
 

void setup()

{

 lcd.init(); // initialize the lcd 

 lcd.backlight();

 lcd.print("Waiting...");

 Serial.begin(9600); 

}

void loop()

{

 int chk = DHT11.read(DHT11PIN);
 

 switch (chk)

 {

 case DHTLIB_OK: 

 lcd.setCursor(0, 0);

 lcd.print("Temp:");

 lcd.print((float)DHT11.temperature,2);

 lcd.write(0xDF);

 lcd.print("C");
 

 lcd.setCursor(0, 1);

 lcd.print("Humidity:");

 lcd.print((float)DHT11.humidity,2);

 lcd.print("%");
 

 break;

 case DHTLIB_ERROR_CHECKSUM: 

 lcd.clear();

 lcd.print("Checksum error"); 

 delay(1000); 

 lcd.clear();

 break;

 case DHTLIB_ERROR_TIMEOUT: 

 lcd.clear();

 lcd.print("Time out error"); 

 delay(1000); 

 lcd.clear();

 break;

 default: 

 lcd.clear();

 lcd.print("Unknown error"); 

 delay(1000); 

 lcd.clear();

 break;

 }

 delay(1000);

}</pre>
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Acrylic Arduino 4DOF Robot Arm Kit SNARM Guide

About control: Control is also very simple, with four knobs to control the movement of each potentiometer. After connecting to the computer with USB, you can send commands through the serial port to control the movement of the servo. At the same time compatible with other computer control software, also supports their own write procedures, the implementation of fixed repetitive action.

Package list:

1,black acrylic cutting 1 set

2,9g servo 4 pcs

3, Arduino UNO 1 pcs

4, Arduino extension board 1 pcs(need weld)

5. screw some

Hardware connection principle: Potentiometer expansion board ———- arduino port Control 1 ——— A0 Control 2 ——— A1 Control 3 ——— A2 Control 4 ——— A3 Servo: Servo 1 ——— D11 Servo 2 ——— D10 Servo 3 ——— D9 Servo 4 ——— D6

Mannual and soruce code:

  • SNARM 4dof acrylic parts install guide A
  • SNARM 4dof acrylic parts install guide B
  • SNARM 4dof acrylic parts install guide C
  • Arduino code download
  • extendtion board guide

………………………………………………

VIDEO SHOW:

……………………………………………………………………………………………………………….

The use of potentiometer expansion boards: Potentiometer expansion board is very easy to use, just insert the Arduino board , the four servo access to the corresponding location. Because the different joints corresponding to the degree of different, so you have a servo test, find the corresponding slot Place all four servos on the corresponding connector Claw – —-Servo 1 big Arm —– —Servo 2 Small arm —– Servo 3 Base —– Servo 4

Newest Update：

2017.05.18 2016.09.12 2016.05.02

– See more at: https://www.sinoning.com/blogs/resources/snarm#sthash.eWkrOOFm.dpuf