Name: CJMCU ATtiny85 微型單片機開發板
SKU: 24718531(B3-3)
Price: 200 TWD
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CJMCU ATtiny85 微型單片機開發板

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貨號： 24718531(B3-3) 分類： Arduino, 穿戴裝置開發套件標籤： ATTINY85, Lilypad, LilyTiny, 穿戴裝置

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CJMCU ATtiny85 微型單片機開發板 ATtiny85 微型單片機 arduino 穿戴裝置開發板系列

愛特梅爾公司(Atmel Corporation) 宣布其低功耗的ATtiny 10/20/40微控制器(MCU) 系列，針對按鍵、滑塊和滑輪等觸控感應應用予以優化。這些器件包括了AVR MCU 及其專利的低功耗picoPower技術，是對成本敏感的工業和消費電子市場上多種應用，如汽車控制板、LCD電視和顯示器、筆記本電腦、手機等的理想選擇。

ATtiny MCU系列介紹

愛特梅爾ATtiny 新型單片機集成有愛特梅爾的AVR 微控制器，以及包括1KB至4KB 的閃存，帶有32 KB至256 KB 的SRAM。此外，這些器件支持SPI 和TWI (具備I2C-兼容性) 通信，提供最高靈活性和1.8V至5.5V的工作電壓。ATtinyAVR使用愛特梅爾專利的picoPower技術，耗電極低。通過軟件控制系統時鐘頻率，取得系統性能與耗電之間的最佳平衡，同時也得到了廣泛應用。

https://github.com/sparkfun/LilyTiny_LilyTwinkle

Arduino 範例碼

/******************************************************************************
  LilyTiny (ATtiny85, internal 8 MHz clock)
  Emily Lovell
 
  Controls the behavior of up to four LEDs, depending on pin:
    Pin 0: fades in and out
    Pin 1: heartbeat
    Pin 2: blinks on and off
    Pin 3: twinkles randomly
******************************************************************************/

// Constant definitions
#define maxBrightness 255.0

#define maxTimeOn 9999 
#define blinkTime 125 

// Variables and constants for fading pin. Needs to be a pin with PWM hardware
//  available; on the Tiny85 that's pin 0 and pin 1 only.
#define fadePin 	0  			// Redefine the pin name to something
								//  application specific.
int fadeDirection 	= 1; 		// 1 is brighter, -1 is dimmer
int fadeStep 		= 1; 
int fadeBrightness 	= 1; 

// Variables and constants for fading pin. Needs to be a hardware PWM pin; on
//  Tiny85 that's pin 0 and pin 1 only.
#define HEARTPIN	1 			// Redefine the pin name to something
								//  application specific.
int heartStage = 0;
float heartBrightness = 0;
float heartCounter = 0;

// variables for blink pin (pin 2)
int blinkPin = 2; 
int blinkDelay = blinkTime;
int blinkState = false;

// variables for twinkle pin (pin 3)
int twinklePin = 3; 
int timeOn = 0;
float currentBrightness = 0;
int targetBrightness = 0;
float timeToBright = 0;
float stepToBright = 0;


void setup()
{
  pinMode(twinklePin, OUTPUT);
  startOver();
  pinMode(blinkPin, OUTPUT);
}

void loop()
{
  // calculate brightness for twinkle pin (determined 
  // by how much time the LED is on vs. off) 
  timeOn = calcTimeOn(currentBrightness);
  digitalWrite(twinklePin, HIGH);
  delayMicroseconds(timeOn + 1);
  digitalWrite(twinklePin, LOW);
  delayMicroseconds(maxTimeOn - timeOn);

  // recalculate brightness for twinkle pin
  currentBrightness += stepToBright;
  timeToBright--;
  if(timeToBright == 0)
    startOver();
 
  // calculate brightness for heartbeat pin (by cycling 
  // through phases of pulse pattern)
  heartCounter++;
  if (heartCounter > 144) {
    heartStage = (heartStage + 1) % 4;
    heartCounter = 0;
  }
  else {
    switch(heartStage) {
      case 0:
        analogWrite(HEARTPIN, heartBrightness);
        heartCounter += 144/12.0;
        heartBrightness += 255/12.0;
        if (heartBrightness > 255)
          heartBrightness = 255;
        break;
      case 1:
        analogWrite(HEARTPIN, heartBrightness);
        heartCounter += 144/24.0;
        heartBrightness -= 255/24.0;
        if (heartBrightness < 0)
          heartBrightness = 0;
        break;
      case 2:
        analogWrite(HEARTPIN, heartBrightness);
        heartCounter += 144/12.0;
        heartBrightness += 255/12.0;
        if (heartBrightness > 255)
          heartBrightness = 255;
        break;
      case 3:
        analogWrite(HEARTPIN, heartBrightness);
        heartCounter += 144/72.0;
        heartBrightness -= 255/72.0;
        if (heartBrightness < 0)
          heartBrightness = 0;
        break;
    }
  }
    
 
  // drive blink pin high or low, depending on how much time has passed
  blinkDelay--;
  if (blinkDelay == 0) {
    blinkDelay = blinkTime;
    blinkState = !blinkState;
    digitalWrite(blinkPin, blinkState);
  }  
  
  // increase/decrease brightness of fade pin in steady incremental steps
  analogWrite(fadePin, fadeBrightness);
  fadeBrightness += fadeStep * fadeDirection;
  if (fadeBrightness >= 255) {
    fadeBrightness = 255;
    fadeDirection = -1;
  }
  if (fadeBrightness <= 0) {
    fadeBrightness = 0;
    fadeDirection = 1; 
  }
}

// calculate ratio of time LED is on/off to acheive particular brightness
int calcTimeOn(int desiredBrightness) {
  return desiredBrightness / maxBrightness * maxTimeOn;
}


// restart a new twinkle 
void startOver(){
  if (random(0, 1) == 1)
    targetBrightness = currentBrightness + random(100, 200);
  else
    targetBrightness = currentBrightness - random(100, 200);
  if (targetBrightness < 0)
    targetBrightness = maxBrightness + targetBrightness;
  targetBrightness %= (int)maxBrightness;
  timeToBright = random(10, 30); 
  stepToBright = (targetBrightness - currentBrightness) / timeToBright;
}

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/******************************************************************************

LilyTiny (ATtiny85, internal 8 MHz clock)

Emily Lovell

Controls the behavior of up to four LEDs, depending on pin:

Pin 0: fades in and out

Pin 1: heartbeat

Pin 2: blinks on and off

Pin 3: twinkles randomly

******************************************************************************/

// Constant definitions

#define maxBrightness 255.0

#define maxTimeOn 9999

#define blinkTime 125

// Variables and constants for fading pin. Needs to be a pin with PWM hardware

// available; on the Tiny85 that's pin 0 and pin 1 only.

#define fadePin 0 // Redefine the pin name to something

// application specific.

int fadeDirection = 1; // 1 is brighter, -1 is dimmer

int fadeStep = 1;

int fadeBrightness = 1;

// Variables and constants for fading pin. Needs to be a hardware PWM pin; on

// Tiny85 that's pin 0 and pin 1 only.

#define HEARTPIN 1 // Redefine the pin name to something

// application specific.

int heartStage = 0;

float heartBrightness = 0;

float heartCounter = 0;

// variables for blink pin (pin 2)

int blinkPin = 2;

int blinkDelay = blinkTime;

int blinkState = false;

// variables for twinkle pin (pin 3)

int twinklePin = 3;

int timeOn = 0;

float currentBrightness = 0;

int targetBrightness = 0;

float timeToBright = 0;

float stepToBright = 0;

void setup()

{

pinMode(twinklePin, OUTPUT);

startOver();

pinMode(blinkPin, OUTPUT);

}

void loop()

{

// calculate brightness for twinkle pin (determined

// by how much time the LED is on vs. off)

timeOn = calcTimeOn(currentBrightness);

digitalWrite(twinklePin, HIGH);

delayMicroseconds(timeOn + 1);

digitalWrite(twinklePin, LOW);

delayMicroseconds(maxTimeOn - timeOn);

// recalculate brightness for twinkle pin

currentBrightness += stepToBright;

timeToBright--;

if(timeToBright == 0)

startOver();

// calculate brightness for heartbeat pin (by cycling

// through phases of pulse pattern)

heartCounter++;

if (heartCounter > 144) {

heartStage = (heartStage + 1) % 4;

heartCounter = 0;

}

else {

switch(heartStage) {

case 0:

analogWrite(HEARTPIN, heartBrightness);

heartCounter += 144/12.0;

heartBrightness += 255/12.0;

if (heartBrightness > 255)

heartBrightness = 255;

break;

case 1:

analogWrite(HEARTPIN, heartBrightness);

heartCounter += 144/24.0;

heartBrightness -= 255/24.0;

if (heartBrightness < 0)

heartBrightness = 0;

break;

case 2:

analogWrite(HEARTPIN, heartBrightness);

heartCounter += 144/12.0;

heartBrightness += 255/12.0;

if (heartBrightness > 255)

heartBrightness = 255;

break;

case 3:

analogWrite(HEARTPIN, heartBrightness);

heartCounter += 144/72.0;

heartBrightness -= 255/72.0;

if (heartBrightness < 0)

heartBrightness = 0;

break;

}

// drive blink pin high or low, depending on how much time has passed

blinkDelay--;

if (blinkDelay == 0) {

blinkDelay = blinkTime;

blinkState = !blinkState;

digitalWrite(blinkPin, blinkState);

}

// increase/decrease brightness of fade pin in steady incremental steps

analogWrite(fadePin, fadeBrightness);

fadeBrightness += fadeStep * fadeDirection;

if (fadeBrightness >= 255) {

fadeBrightness = 255;

fadeDirection = -1;

}

if (fadeBrightness <= 0) {

fadeBrightness = 0;

fadeDirection = 1;

}

// calculate ratio of time LED is on/off to acheive particular brightness

int calcTimeOn(int desiredBrightness) {

return desiredBrightness / maxBrightness * maxTimeOn;

}

// restart a new twinkle

void startOver(){

if (random(0, 1) == 1)

targetBrightness = currentBrightness + random(100, 200);

else

targetBrightness = currentBrightness - random(100, 200);

if (targetBrightness < 0)

targetBrightness = maxBrightness + targetBrightness;

targetBrightness %= (int)maxBrightness;

timeToBright = random(10, 30);

stepToBright = (targetBrightness - currentBrightness) / timeToBright;

}

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CJMCU ATtiny85 微型單片機開發板

CJMCU ATtiny85 微型單片機開發板

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CJMCU ATtiny85 微型單片機開發板

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