An analogy would be warming up a pizza in your microwave, and also waiting some important email. You put the pizza in the microwave and set it for 10 minutes. The analogy to usingdelay()would be to sit in front of the microwave watching the timer count down from 10 minutes until the ...
// reset the debouncing timer lastDebounceTime = millis(); } if ((millis() - lastDebounceTime) > debounceDelay) { // whatever the reading is at, it's been there for longer than the debounce // delay, so take it as the actual current state: // if the button state has changed: if...
第5章Arduino的基本函数 目录1 目录 5 目录9 5.1数字I/O 5.1.1pinMode(pin,mode)pinMode函数用于配置引脚为输入或输出模式，它是一个无返回值函数，一般放在setup里，先设置再使用。pinMode函数有两个参数——pin和mode。pin参数表示要配置的引脚，以ArduinoUno为例，它的范围是数字引脚0～13，也可以把模拟...
m = timer0_millis; SREG = oldSREG; return m; } 5.4 时间函数 注意:函数返回值为unsigned long型,如果用int 型保存时间将得到错误结果。 可以在开发环境的下列实例程序中找到millis函数的 应用: BlinkWithoutDelay.pde、Calibration.pde、 Debounce.pde ...
m = timer0_millis; SREG = oldSREG; return m; } 注意:函数返回值为unsigned long型,如果用int型保存时间将得到错误结果。 可以在开发环境的下列实例程序中找到millis函数的应用: BlinkWithoutDelay.pde、Calibration.pde、Debounce.pde 3.4.2 delay(ms) 3.4.2 delay(ms) delay函数是一个延时函数,在Blink程序...
ESP_OK:ESP_FAIL; httpd_resp_send_chunk(req, NULL, 0); fb_len = jchunk.len; } esp_camera_fb_return(fb); int64_t fr_end = esp_timer_get_time(); Serial.printf("JPG: %uB %ums\n", (uint32_t)(fb_len), (uint32_t)((fr_end - fr_start)/1000)); return res; } dl_...
delay(4000); } 注意,在用IDE进行程序下载时,记得把板子的型号给选对,COM口也要选对,这样才会可以顺利的进行成功! 以下是我测试的实验结果: 2012-4-17 13:47 上传 (28.29 KB) 以下是程序中需要到的库函数: TimerOne.rar (2.75 KB) 网盘下载http://pan.baidu.com/s/1dExdYV3 ...
= lastButtonState) { // reset the debouncing timer lastDebounceTime = millis(); } if ((millis() - lastDebounceTime) > debounceDelay) { // whatever the reading is at, it's been there for longer // than the debounce delay, so take it as the actual current state: // if the button...
What does not seem to work is the 'run cpu sleep' part. esp_delay above just yields to system for the given duration, function would block and won't return until that time arrives; not really a full-fledged sleep like deep sleep or light sleep without timer. ...
timer; void setup() { delay(3000); Serial.begin(115200); Serial.print("\n---\nADC\n\nConstructor:\t"); Serial.println(currentADC.statusReg2,BIN); Serial.print("Bit Delay :"); Serial.print(delayTwiUp*50); Serial.print(" ns\t"); Serial.print(delayTwiDn*50); Serial...