FPGA Nexys 2

Demorou mas chegou, com desconto academico. FPGA com 16MB de Flash e 16 MB RAM.

Pinguino32x - PIC32MX795

PIC32MX795 placed on TQFP adapter, ready for tests on new Pinguino32X IDE!

Stepper Motors library ported from Arduino to Pinguino

This library was ported from Stepper library from Arduino project,
Same samples works with minimum changes!
http://arduino.cc/en/Reference/Stepper

You need add a 1µF or 10µF capacitor between GND and VCC on pinguino board.
Tested with a PM35-048 stepper and ULN2003a / ULN2803a drivers.

DOWNLOAD

INSTALL
1- Copy Stepper.lib/stepper.c and Stepper.lib/stepper.h to pinguino/tools/share/sdcc/include/pic16/
2- Copy Stepper.lib/stepper.pdl to pinguino/lib

Sample:

/*
 * Based on MotorKnob Stepper Library from Arduino Project
 *
 * A stepper motor follows the turns of a potentiometer
 * (or other sensor) on analog input 0.
 *
 * http://www.arduino.cc/en/Reference/Stepper
 * 
 * Pinguino port by Anunakin 
 * For use this sample on Pinguino boards, 
 * you need add a 10uF or less capacitor 
 * between GND and VCC on pinguino board.
 */
#define PIC18F4550
#define LED 4
#define POT 13
// change this to the number of steps on your motor
// PM35S-048
#define STEPS 48
// specify the number of steps of the motor and the pins it's
// attached to
// the previous reading from the analog input
int previous = 0;
void setup()
{
  stepper(STEPS, 0, 1, 2, 3);
  //stepper(STEPS, 0, 1);
  // set the speed of the motor to 30 RPMs
  stepper.setSpeed(100);
  
  pinMode(POT,INPUT);
  pinMode(LED,OUTPUT);
}
void loop()
{
   // get the sensor value
  int val = analogRead(POT);
  val = (int)(val*1/16);
  
  // move a number of steps equal to the change in the
  // sensor reading
  if (val != previous){    
    stepper.step(val - previous);
  }
    
    digitalWrite(LED,HIGH);
    delay(50 + val);
  //}
  digitalWrite(LED,LOW);
  delay(50);
  
  //remember the previous value of the sensor
  previous = val;
}

GLCD Pinguino library revision 1.6.1

A small patch on PORTA/PORTC switch routine.

GLCD_pinguino_library_v1.6.1.zip

GLCD Pinguino library new version 1.6

I made a new version of GLCD Pinguino library, this already tested with Pinguino beta 9.05, this have many improves on coding way.

Now we can:
- Use GLCD.PrintFloat(float number, presision) function for print decimal numbers, with #define USEFLOATS()

- Choose what port library uses for display control PORTA or PORTC, with #define USEPORTA()


Download GLCD 1.6 Here!

Solar Powered Pinguino

Solar Powered Pinguino, using Clock sketch with GLCD library, and a Lipo Rider adapter!

Pinguino i2c OLED Display

Thanks for help of JPMandon, we have OLED Display working
with libi2c on pinguino Board!

Pinguino full sourcecode here:
OLED.zip

//Program for I2C communication with a 128x64 OLED Display (http://www.seeedstudio.com)
//Marcus Fazzi 2010
#define LED 13
#define I2C_address 0x3c    //i2c address of Display
#include <libI2C.c>
//For working with strings strlen() function
// #include <string.h>
#include "data.c"
unsigned char fill_OLED = 0x55;
unsigned char fill_string1[13]="Pinguino OLED";
unsigned char fill_string2[11]="OLED 128x64";
unsigned char fill_string3[16]="0123456789ABCDEF";
unsigned char fill_string4[2]="SS";
//=======================
void sendcommand(unsigned char com)
{   
  short dt[2] =  { 0x80, com }; //command mode
  I2C_write(I2C_address, dt, 2);
  I2C_STOP(); //stop transmitting
}
//===================================
void SendChar(unsigned char dat)
{
  short dt[2] =  { 0x40, dat }; //data mode
  I2C_write(I2C_address, dt, 2);
  I2C_STOP();    //stop transmitting
}
//===================================
void setXY(unsigned char row,unsigned char col)
{
  sendcommand(0xb0 + row); //set page address
  sendcommand(0x00 + (8 * col & 0x0f)); //set low col address
  sendcommand(0x10 + ((8 * col >> 4) & 0x0f)); //set high col address
}
//==================================
void clear_display()
{
  unsigned char i,k;
  for(k=0;k<8;k++)
  {     
    setXY(k,0);    
    {
      for(i=0;i<128;i++) //clear all COL
      {
        SendChar(0);
      }
    }
  }
}
//==================================
void printChar(unsigned char ascii)
{
  unsigned char i;
  for(i=0;i<8;i++)
  {
    SendChar(myFont[ascii-0x20][i]);
  }
}
//==================================
void sendStr(unsigned char *string, unsigned char len)
{
  unsigned char i, j;
  //setXY(0,0);    
  for(i=0;i<len;i++)
  {
    for(j=0;j<8;j++)
    {
      SendChar(myFont[*string-0x20][j]);
                //SendChar(*string);
      delay(10);
    }
    *string++;
  }
}
//=================================
void init_OLED(void)
{
  sendcommand(0xae);            //display off
  delay(50); 
//  sendcommand(0xa0);          //seg re-map 0->127(default)
//  sendcommand(0xa1);          //seg re-map 127->0
//  sendcommand(0xc8);
//        delay(1000);
  sendcommand(0xaf);            //display on
  delay(50);
}
void setup()
{
   delay(500);
   init_I2C();
        //SSPADD=19;  //Slow mode
        
   init_OLED();
        delay(10);
        clear_display();
   delay(50);
   
   pinMode(LED, OUTPUT);  
   
}
//========================
void loop()
{
  short i;
  
  clear_display();
  delay(50);
  sendcommand(0x20);          //Set Memory Addressing Mode
  sendcommand(0x02);          //Set Memory Addressing Mode ab Page addressing mode(RESET)  
 
  sendcommand(0xa6);                    //Set Normal Display (default)
  setXY(3,2);
  sendStr(fill_string1, 13);
  setXY(4,3);
  sendStr(fill_string2, 11);
  
  delay(2000);
  sendcommand(0xa7);                    //Set Inverse Display  
  delay(2000);
  clear_display();
  delay(50);  
  setXY(0,0);
  sendcommand(0xa6);                    //Set Normal Display
  sendcommand(0xae);                            //display off
  sendcommand(0x20);                    //Set Memory Addressing Mode
  sendcommand(0x00);                    //Set Memory Addressing Mode ab Horizontal addressing mode
  
  for(i=0;i<128*8;i++)                  //write a 128x64 picture
  {
    SendChar(logo[i]);
  }
  
  sendcommand(0xaf);                            //display on
  delay(2000);
  sendcommand(0xa7);                    //Set Inverse Display
  delay(2000);  
 /*
  while(1)
  {
    //sendcommand(0xa6);  Set Normal Display
    sendcommand(0x29);  //Vertical and Horizontal Scroll Setup
    sendcommand(0x00);  //dummy byte
    sendcommand(0x00);  //define page0 as startpage address
    sendcommand(0x00);  //set time interval between each scroll ste as 6 frames
    sendcommand(0x07);  //define page7 as endpage address
    sendcommand(0x01);  //set vertical scrolling offset as 1 row
    sendcommand(0x2f);  //active scrolling
    delay(3000);
  };
  */
}

You can see datasheet, arduino sample, and buy one at:
http://www.seeedstudio.com/depot