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UNO Duemilanove 2009 Board for Arduino Controller AVRmega328-20PU

UNO Duemilanove 2009 Board for Arduino Controller AVRmega328-20PU

  • UNO Duemilanove 2009 Board for Arduino Controller AVRmega328-20PU
  • UNO Duemilanove 2009 Board for Arduino Controller AVRmega328-20PU
  • UNO Duemilanove 2009 Board for Arduino Controller AVRmega328-20PU
  • UNO Duemilanove 2009 Board for Arduino Controller AVRmega328-20PU
UNO Duemilanove 2009 Board for Arduino Controller AVRmega328-20PU
Product Details:
Place of Origin: Made in China
Brand Name: DIY
Certification: CE FC
Model Number: Duemilanove 2009
Payment & Shipping Terms:
Minimum Order Quantity: 5pcs
Price: USD7.85/pc--USD8.9/pc
Packaging Details: special package
Delivery Time: 1-3 work days
Payment Terms: L/C, Western Union, MoneyGram and etc.
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Detailed Product Description
Controller: AVRmega328-20PU Input Voltage (recommended): 7-12v
Digital IO Pins: 8 Analog Input Pins: 6
SRAM: 1 KB Clock Speed: 16MHz
Operating Voltage: 5V Flash Memory: 32 KB (the Other 2k For Bootloader)
PWM Channel: 6
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UNO Duemilanove 2009 Board for Arduino Controller AVRmega328-20PU

 

 

 

Specifications:
 

Microcontroller

ATmega328p

Operating Voltage

5V

Input Voltage (recommended)

6-11V

Digital I/O Pins

14 (of which 6 provide PWM output)

Analog Input Pins

6

DC Current per I/O Pin

40 mA

DC Current for 3.3V Pin

300 mA

Flash Memory

32 KB of which 2KB used by bootloader

SRAM

2 KB

EEPROM

1 KB

Clock Speed

16 MHz

 

 

Description:


1. brand new 
2. Good condition 
3. Good price

The Duemilanove Board Arduino is a microcontroller board based on the ATmega328. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz crystal oscillator, a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started.

 

 

Test proTest procedure

/*
The circuit:
* LCD RS pin to digital pin 8
* LCD Enable pin to digital pin 9
* LCD D4 pin to digital pin 4
* LCD D5 pin to digital pin 5
* LCD D6 pin to digital pin 6
* LCD D7 pin to digital pin 7
* LCD BL pin to digital pin 10
* KEY pin to analogl pin 0
*/

#include <LiquidCrystal.h>

LiquidCrystal lcd(8, 13, 9, 4, 5, 6, 7);

char msgs[5][16] = {"Right Key OK ",
"Up Key OK ",
"Down Key OK ",
"Left Key OK ",
"Select Key OK" };

int adc_key_val[5] ={50, 200, 400, 600, 800 };
int NUM_KEYS = 5;
int adc_key_in;
int key=-1;
int oldkey=-1;

void setup()
{
lcd.clear();
lcd.begin(16, 2);
lcd.setCursor(0,0);
lcd.print("ADC key testing");
}

void loop()
{
adc_key_in = analogRead(0); // read the value from the sensor
key = get_key(adc_key_in); // convert into key press

if (key != oldkey) // if keypress is detected
{
delay(50); // wait for debounce time
adc_key_in = analogRead(0); // read the value from the sensor
key = get_key(adc_key_in); // convert into key press
if (key != oldkey)
{
lcd.setCursor(0, 1);
oldkey = key;
if (key >=0){
lcd.print(msgs[key]);
}
}
}
delay(100);
}

// Convert ADC value to key number
int get_key(unsigned int input)
{
int k;

for (k = 0; k < NUM_KEYS; k++)
{
if (input < adc_key_val[k])
{
return k;
}
}

if (k >= NUM_KEYS)k = -1; // No valid key pressed
return k;
}

 

 

Photos:

 

UNO Duemilanove 2009 Board for Arduino Controller AVRmega328-20PU 0

 

Contact Details
Oky Newstar Technology Co., Ltd

Contact Person: Ms. Erica Teng

Tel: +8613410424757

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