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第69行： |
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| | ==程序== | | ==程序== |
| − | <source lang="cpp">
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| | + | https://github.com/Microduino/Microduino_Tutorials/tree/master/Microduino_Advanced/Microduino8_8LateralMovement |
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| − | //Pin 连接到 74HC595的ST_CP
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| − | int latchPin = 8;
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| − | //Pin 连接到 74HC595的SH_CP
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| − | int clockPin = 12;
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| − | //Pin 连接到 74HC595的DS
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| − | int dataPin = 11;
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| − |
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| − | //设定时间
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| − | unsigned long time;
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| − |
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| − | //掩盖行定义
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| − | byte masks[8]={
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| − | B01111111,B10111111,B11011111,B11101111,B11110111,B11111011,B11111101,B11111110};
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| − |
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| − |
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| − | //笑脸横向移动定义
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| − | byte rows[4][8]={
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| − | {
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| − | B00111100,B01000010,B10100101,B10000001,B10100101,B10011001,B01000010,B00111100 }
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| − | ,
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| − | {
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| − | B00011110,B00100001,B11010010,B11000000,B11010100,B11001100,B00100001,B00011110 }
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| − | ,
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| − | {
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| − | B00001111,B10010000,B11101001,B01100000,B01101010,B01100110,B10010000,B00001111 }
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| − | ,
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| − | {
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| − | B10000111,B01001000,B11110100,B00110000,B00110101,B00110011,B01001000,B10000111 }
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| − | };
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| − |
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| − | void setup() {
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| − | //波特率为9600，用于调试
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| − | Serial.begin(9600);
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| − | //设置 latchpin 为 output
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| − | pinMode(latchPin, OUTPUT);
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| − |
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| − | }
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| − |
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| − | void loop() {
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| − |
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| − | //笑脸横向移动
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| − | for(int j=0;j<4;j++) {
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| − | unsigned long startTime = millis();
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| − | for (unsigned long elapsed=0; elapsed < 1000; elapsed = millis() - startTime) {//持续显示600ms
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| − | for(int i=0;i<8;i++) {
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| − | digitalWrite(latchPin, 0);
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| − | shiftOut(dataPin, clockPin, masks[i]); //mask(col)
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| − | shiftOut(dataPin, clockPin, rows[j][i]); //row
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| − | digitalWrite(latchPin, 1);
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| − | }
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| − | }
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| − | //time=0;
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| − |
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| − | }
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| − | }
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| − |
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| − | void shiftOut(int myDataPin, int myClockPin, byte myDataOut) {
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| − | // This shifts 8 bits out MSB first,
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| − | //on the rising edge of the clock,
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| − | //clock idles low
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| − |
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| − | //internal function setup
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| − | int i=0;
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| − | int pinState;
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| − | pinMode(myClockPin, OUTPUT);
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| − | pinMode(myDataPin, OUTPUT);
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| − |
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| − | //clear everything out just in case to
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| − | //prepare shift register for bit shifting
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| − | digitalWrite(myDataPin, 0);
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| − | digitalWrite(myClockPin, 0);
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| − |
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| − | //for each bit in the byte myDataOut�
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| − | //NOTICE THAT WE ARE COUNTING DOWN in our for loop
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| − | //This means that %00000001 or "1" will go through such
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| − | //that it will be pin Q0 that lights.
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| − | for (i=7; i>=0; i--) {
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| − | digitalWrite(myClockPin, 0);
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| − |
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| − | //if the value passed to myDataOut and a bitmask result
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| − | // true then... so if we are at i=6 and our value is
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| − | // %11010100 it would the code compares it to %01000000
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| − | // and proceeds to set pinState to 1.
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| − | if ( myDataOut & (1<<i) ) {
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| − | pinState= 1;
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| − | }
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| − | else {
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| − | pinState= 0;
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| − | }
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| − |
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| − | //Sets the pin to HIGH or LOW depending on pinState
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| − | digitalWrite(myDataPin, pinState);
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| − | //register shifts bits on upstroke of clock pin
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| − | digitalWrite(myClockPin, 1);
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| − | //zero the data pin after shift to prevent bleed through
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| − | digitalWrite(myDataPin, 0);
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| − | }
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| − |
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| − | //stop shifting
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| − | digitalWrite(myClockPin, 0);
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| − | }
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| − |
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| − | </source>
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| | 在程序中定义byte rows[4][8]的四个横向移动动作 | | 在程序中定义byte rows[4][8]的四个横向移动动作 |
