delay(2000); // Pause for 2 seconds // Clear the buffer display.clearDisplay(); // Draw a single pixel in white display.drawPixel(64, 32, WHITE); display.display(); delay(3000); // Draw line display.clearDisplay(); display.drawLine(0, 0, 127, 20, WHITE); display.display(); de...
5、广播语插播功能,可以暂停正在播放的背景音乐 6、音频数据按文件夹排序,最多支持100个文件夹,每隔文件夹可以分配1000首歌曲 7、支持line in功能 8、支持mic扩音喊话功能 9、支持声卡功能,也支持线控耳机功能 10、30级音量可调,10种EQ可调 11、支持外扩NORFLASH和NANDFLASH.板载默认支持NORFLASH YX5200-24SS电原...
fill_solid(myled,30,CRGB::Black); FastLED.show(); delay(100); fill_solid(myled,30,CRGB::Red); FastLED.show(); delay(100); fill_solid(myled,30,CRGB::Black); FastLED.show(); delay(100); fill_solid(myled,30,CRGB::Blue); FastLED.show(); delay(100); fill_solid(myled,30,C...
// but actually the LED is on; this is because // it is active low on the ESP-01) delay(1000);// Wait for a second digitalWrite(LED_BUILTIN, HIGH);// Turn the LED off by making the voltage HIGH delay(2000);// Wait for two seconds (to demonstrate the active low LED) } (2)...
float ampSeconds = 0.0; float ampHours = 0.0; float wattHours = 0.0; float amps = 0.0; int R1 = 11660; // Resistance of R1 in ohms int R2 = 4620; // Resistance of R2 in ohms float ratio = 0; // Calculated from R1 / R2 ...
define TIME_TO_SLEEP 5 /Time ESP32 will go to sleep (in seconds)/ RTC_DATA_ATTR int bootCount = 0; /* Method to print the reason by which ESP32 has been awaken from sleep */ void print_wakeup_reason(){ esp_deep_sleep_wakeup_cause_t wakeup_reason; ...
Once hardware connections are done, you need to add DHT22 library to your Arduino library file as described earlier. Result You will see the temperature and humidity display on serial port monitor which is updated every 2 seconds. Print Page ...
delay(2000);// Pause for 2 seconds // Clear the buffer display.clearDisplay(); // Draw a single pixel in white display.drawPixel(10, 10, SSD1306_WHITE); // Show the display buffer on the screen. You MUST call display() after ...
// Show initial display buffer contents on the screen --// the library initializes this with an Adafruit splash screen.display.display();delay(2000);// Pause for 2 seconds// Clear the bufferdisplay.clearDisplay();// Draw a single pixel in whitedisplay.drawPixel(10,10,SSD1306_WHITE);//...
delay(2000); // Pause for 2 seconds // Clear the buffer display.clearDisplay(); // Draw a single pixel in white display.drawPixel(10, 10, SSD1306_WHITE); // Show the display buffer on the screen. You MUST call display() after ...