일 | 월 | 화 | 수 | 목 | 금 | 토 |
---|---|---|---|---|---|---|
1 | 2 | 3 | 4 | |||
5 | 6 | 7 | 8 | 9 | 10 | 11 |
12 | 13 | 14 | 15 | 16 | 17 | 18 |
19 | 20 | 21 | 22 | 23 | 24 | 25 |
26 | 27 | 28 | 29 | 30 | 31 |
- cf50/4 fle
- Nikon 28Ti
- Mamiya 7
- Rollei35s
- Germany
- FujiFilm GFX50s
- N80/4
- G28/2.8
- 2019 유럽여행
- Minolta CLE
- Kodak 400TX
- Kodak T-Max 100
- Kentmere 400
- Kodak Ektar 100
- M-Rokkor 40/2
- Hasselblad 500cm
- Leica M7
- ZeissIkon ZI
- Contax G2
- SONY A7
- FujiFilm C200
- cf80/2.8
- cs50/2.5
- Kodak 5222
- fujifilm velvia 50
- 4870
- kodak t-max 400
- Minolta TC-1
- 2018 미국출장
- GRD2
- Today
- Total
J 창고
[Arduino] Millis 로 구현한 Delay 본문
int led_red = 4;
int led_blue = 5;
int ledState_red = LOW;
int ledState_blue = HIGH;
long previousMillis = 0;
long interval = 1000;
void setup(){
pinMode(led_red, OUTPUT);
pinMode(led_blue, OUTPUT);
}
void loop(){
unsigned long currentMillis = millis();
if(currentMillis - previousMillis > interval){
previousMillis = currentMillis;
if(ledState_red == LOW){
ledState_red = HIGH;
ledState_blue = LOW;
}
else{
ledState_red = LOW;
ledState_blue = HIGH;
}
digitalWrite(led_red, ledState_red);
digitalWrite(led_blue, ledState_blue);
}
}
=============================================================
currentMillis(1초) - previousMillis(0초) 값이 interval(1초)보다 클 때
currentMillis(1초)값을 previousMillis값에 대입하고 다시 연산
또 다시 currentMillis(2초) - previousMillis(1초)값이 interval값(1초)보다 커질 때
currentMillis(2초)값을 previousMillis값에 대입.