Happy New Year!!!

My present project, C# interfacing with Arduino

Bidirectional serial communication between C # and Arduino.
Analog and digital communication, both at the same time.
I built the PCB around ATMEGA8.
I used a 16x2 LCD to check sent / received data.

I/O:

2 digital outputs (2 LEDs),
1 PWM output (1 DC motor),
2 digital inputs (2 switches),
2 analog inputs (1 potentiometer and 1 phototransistor).

 

Watch video:

C# communicate with Arduino Part.1

I tried a simple demonstration of communication, via usb, between C # and Arduino.

We have 3 buttons that help turn on / off 3 LED.

  
 The first push of the green button turns ON green LED, the second push of the green buttonturns OFF green LED. Is the same for the rest of the buttons.

 


C# code: 

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO.Ports;

namespace SERIAL_DIGITAL_WRITE
{
    public partial class Form1 : Form
    {
        int green=0;
        int blue=0;
        int red=0;
      
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
          
            serialPort1.Open();
            if (green==0)
            {
                serialPort1.Write("1");
                green = 1;
            }
            else if (green == 1)
            {
                serialPort1.Write("2");
                green = 0;
            }
            serialPort1.Close();

        }

        private void button2_Click(object sender, EventArgs e)
        {

            serialPort1.Open();
            if (blue == 0)
            {
                serialPort1.Write("3");
                blue = 1;
            }
            else if (blue == 1)
            {
                serialPort1.Write("4");
                blue = 0;
            }
            serialPort1.Close();

        }

        private void button3_Click(object sender, EventArgs e)
        {

            serialPort1.Open();
            if (red == 0)
            {
                serialPort1.Write("5");
                red = 1;
            }
            else if (red == 1)
            {
                serialPort1.Write("6");
                red = 0;
            }
            serialPort1.Close();

        }

    }
}



Arduino code:

///----------------------------------------///
///         by gabimincu 31.12.2012        ///
///       testing serial digital write     ///
///           gabimincu@gmail.com          ///
///        www.robot-fun.blogspot.com      ///
///----------------------------------------///

int green = 4; // using pin 4 for the GREEN LED
int blue = 3; // using pin 4 for the BLUE LED
int red = 2; // using pin 4 for the RED LED
int i;
int data = 222;

void setup()
{
  Serial.begin(9600); // Opens serial port, sets data rate to 9600 bps
  pinMode(green, OUTPUT); // sets pin as output for green led
  pinMode(blue, OUTPUT); // sets pin as output for blue led
  pinMode(red, OUTPUT); // sets pin as output for red led

  for (i=0;i<5;i++)  // it shows that programs works
  {
    digitalWrite(green,HIGH);
    delay(44);
    digitalWrite(blue,HIGH);
    delay(44);
    digitalWrite(red,HIGH);
    delay(44);
    digitalWrite(green,LOW);
    delay(44);
    digitalWrite(blue,LOW);
    delay(44);
    digitalWrite(red,LOW);
    delay(44);
  }
   
}

void loop()
{
  if (Serial.available() > 0)
  {
    data=Serial.read();
    switch(data)
    {
      case '1':
      digitalWrite(green, HIGH);   // set the GREEN LED on
      break;

      case '2':
      digitalWrite(green,LOW);   // set the GREEN LED off
      break;
     
      case '3':
      digitalWrite(blue, HIGH);   // set the BLUE LED on
      break;

      case '4':
      digitalWrite(blue,LOW);   // set the BLUE LED off
      break;
           
      case '5':
      digitalWrite(red, HIGH);   // set the RED LED on
      break;

      case '6':
      digitalWrite(red,LOW);   // set the RED LED off
      break;
    }
  }
}

Next time I will try to illustrate analog read from C# application.

my remixed robot

 

Video part 1, with original Arduino.

Video part 2, with my homemade Arduino clone.

My Duino

My homemade duino.

 

Ultrasound Measurement Device - final

Ultrasound Measurement Device - part.1

Work in progress...

The objective of this work is to design and manufacture a machine to measure distances using an ultrasonic sensor. Because sound speed variation with temperature, will be implemented and a temperature sensor, which will increase measurement accuracy.

The schematics:

The PCB:

The components:

IC1 – ATMEGA8,

IC2 – LM7805,

D1 – 1N4004,

C6,C7 – 47uF,

C2,C3 – 22pF,

C1,C4,C5,C8,C9,C12 – 100nF,

R1,R4 – 10K,

R2 – 330R,

R3 – 220R,

R7 – 1K,

Trimmer 10K,

Q1 – 16MHz,

L1,L2 – Led,

 Code i used for testing:

///----------------------------------------///
///         by gabimincu 10.05.2012        ///
///  masurarea distantelor cu ultrasunete  ///
///           gabimincu@gmail.com          ///
///        www.robot-fun.blogspot.com      ///
///----------------------------------------///

#include <LiquidCrystal.h>

LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
const int pingPin = 7;               // pin trig senzor
const int inPin = 9;                 // pin echo senzor
int t=0;
int i;
float tempc = 0,temp;                     //variabile temperatura
int d;                        
float durata,cm;                     //variabile distanta

void setup()
{
  Serial.begin(9600);
  lcd.begin(16, 2);
  pinMode(8,INPUT);
}

void loop()
{  
  afisare();

Do you want the rest of the code?

}





Next step: construction of box

ARDUINO + LM35

Almost ready...

Built with PIC 18F2550 from Microchip.

Future improvement: implementation of a steering control so you just turn to the desired angle.
For now this is my mobile robot:



This is the Pinguino with 18F2550 from Microchip:


This is DC motor controller which I have used.

..and the unipolar stepper controller:


And the code that I use it now:

#include
#include

const int pingPin = 7;
const int SafeDist = 40;
unsigned long duration;
long int cm,st,dr;
int motorPin1=14;
int motorPin2=16;
int motorPin3=13;
int motorPin4=15;
int motorDelay=3;/// viteza stepper
int i;

void setup()
{
///pini motoare dc
pinMode (0,OUTPUT);
pinMode (1,OUTPUT);
pinMode (2,OUTPUT);
pinMode (3,OUTPUT);
///pini stepper bipolar
pinMode(13, OUTPUT);
pinMode(14, OUTPUT);
pinMode(15, OUTPUT);
pinMode(16, OUTPUT);
}

void SonarScan()
{
pinMode(pingPin, OUTPUT);
digitalWrite(pingPin, HIGH);
delayMicroseconds(5);
digitalWrite(pingPin, LOW);
pinMode(pingPin, INPUT);
duration = pulseIn(pingPin, HIGH,10000);
}

void inainte()
{
digitalWrite(0, HIGH);
digitalWrite(1, LOW);
digitalWrite(2, HIGH);
digitalWrite(3, LOW);
delay(200);
digitalWrite (0,LOW);
digitalWrite (1,LOW);
digitalWrite (2,LOW);
digitalWrite (3,LOW);
}
void ho()
{
digitalWrite(0, LOW);
digitalWrite(1, LOW);
digitalWrite(2, LOW);
digitalWrite(3, LOW);
}
void inapoi()
{
digitalWrite (0,LOW);
digitalWrite (1,HIGH);
digitalWrite (2,LOW);
digitalWrite (3,HIGH);
delay(1000);
digitalWrite (0,LOW);
digitalWrite (1,LOW);
digitalWrite (2,LOW);
digitalWrite (3,LOW);
}
void dreapta()
{
digitalWrite (0,HIGH);
digitalWrite (1,LOW);
digitalWrite (2,LOW);
digitalWrite (3,HIGH);
delay(666);
digitalWrite (0,LOW);
digitalWrite (1,LOW);
digitalWrite (2,LOW);
digitalWrite (3,LOW);
}
void stanga()
{
digitalWrite (0,LOW);
digitalWrite (1,HIGH);
digitalWrite (2,HIGH);
digitalWrite (3,LOW);
delay(666);
digitalWrite (0,LOW);
digitalWrite (1,LOW);
digitalWrite (2,LOW);
digitalWrite (3,LOW);
}
///baleere stanga
void bast()
{
for(i=1;i<130;i++)
{
digitalWrite(motorPin1, HIGH);
digitalWrite(motorPin2, LOW);
digitalWrite(motorPin3, HIGH);
digitalWrite(motorPin4, LOW);
delay(motorDelay);

digitalWrite(motorPin1, HIGH);
digitalWrite(motorPin2, LOW);
digitalWrite(motorPin3, LOW);
digitalWrite(motorPin4, HIGH);
delay(motorDelay);

digitalWrite(motorPin1, LOW);
digitalWrite(motorPin2, HIGH);
digitalWrite(motorPin3, LOW);
digitalWrite(motorPin4, HIGH);
delay(motorDelay);

digitalWrite(motorPin1, LOW);
digitalWrite(motorPin2, HIGH);
digitalWrite(motorPin3, HIGH);
digitalWrite(motorPin4, LOW);
delay(motorDelay);
}
}
///baleere dreapta
void badr()
{
for(i=1;i<130;i++)
{
digitalWrite(motorPin4, HIGH);
digitalWrite(motorPin3, LOW);
digitalWrite(motorPin2, HIGH);
digitalWrite(motorPin1, LOW);
delay(motorDelay);

digitalWrite(motorPin4, HIGH);
digitalWrite(motorPin3, LOW);
digitalWrite(motorPin2, LOW);
digitalWrite(motorPin1, HIGH);
delay(motorDelay);

digitalWrite(motorPin4, LOW);
digitalWrite(motorPin3, HIGH);
digitalWrite(motorPin2, LOW);
digitalWrite(motorPin1, HIGH);
delay(motorDelay);

digitalWrite(motorPin4, LOW);
digitalWrite(motorPin3, HIGH);
digitalWrite(motorPin2, HIGH);
digitalWrite(motorPin1, LOW);
delay(motorDelay);
}
}
void loop()
{
SonarScan();
if (duration < 2000)
{
ho();
duration=0;
delay(300);
badr();
SonarScan();
dr=duration;
bast();
bast();
SonarScan();
badr();
st= duration;
if (dr< 2000 && st <2000)
{
inapoi();
stanga();
delay(55);
stanga();
}
else if (dr > st)
{
dreapta();
}
else stanga();
}
else inainte();
}

Cu senzor ultrasunete

Still in progress...

USB Programator pentru PIC-uri

De vanzare AICI

 

Pinguino 4550

Pinguino este o placa similara Arduino pe un microcontroler PIC4550.
Avantajul major fata de pinguino 2550 este ca are 10 pini suplimentari.

PS.
Bineinteles ca am uitat ceva cand am proiectat cablajul :)) ledul power.
O sa refac cand am timp.

fara senzori

Driver L298 motor

Pinguino - Prima mea interfata

Modificata sa ma multumeasca pe mine

My first Project at UPG

This was my first project. Made six months ago at UPG Ploiesti.
 

I worked with four other colleagues, guided by the computer architecture teacher.

The operating principle is based on pulling the film through the scanner, scan a video segment, then pulling back ...

I used a stepper motor from an old flopy 5.25 ".

My source of inspiration:

http://hosting.aktionspotenzial.de/CineToVidWiki/index.php/Software:ScanControl