// Arduino pin numbersconstintSW_pin=8;// digital pin connected to switch outputconstintX_pin=0;// analog pin connected to X outputconstintY_pin=1;// analog pin connected to Y outputvoidsetup(){pinMode(SW_pin,INPUT);digitalWrite(SW_pin,HIGH);Serial.begin(9600);}voidloop(){Se...
const int Y_pin = 1; // analog pin connected to Y output 复制代码 在setup()函数中：我们将...
void setup() { pinMode(3, INPUT_PULLUP); }This can be useful when you don’t want a pin to be floating, e.g. when you connect a button to a pin.Note that the analog pins can also be used as digital pins, using the aliases A0, A1, etc. The exception is the Arduino Nano’...
// For NodeMCU - use pin numbers in the form PIN_Dx where Dx is the NodeMCU pin designation //#define TFT_CS PIN_D8 // Chip select control pin D8 //#define TFT_DC PIN_D3 // Data Command control pin //#define TFT_RST PIN_D4 // Reset pin (could connect to NodeMCU RST, see ...
Arduino Uno 8 9 2 3 4 5 6 7 */ #include <Adafruit_GFX.h> #include <TouchScreen.h> #include <Adafruit_TFTLCD.h> #define YP A2 // must be an analog pin, use "An" notation! #define XM A1 // must be an analog pin, use "An" notation!
There are six Arduino Nano PWM pins and they are the same for Arduino Uno and Arduino Nano (the same pin numbers / and internal timers are used).PWM or Pulse Width Modulation is just the description of the signal type and all it means is that you turn an output on and off, but ...
const intanalogPin = A4; float analogValue; float input_voltage; 该阵列用于将引脚分配给 LED 条形图。 int ledPins[] = { 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 }; // an array of pin numbers to which LEDs are attached int pinCount = 10; // the number of pins (i.e. the leng...
#define ANALOG_PIN A0 #define OLED_RESET -1 // 重置引脚 #(如果共享 Arduino 重置引脚,则为 -1) Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET); doublevImag[SAMPLES]; doublevReal[SAMPLES]; unsignedlongsampling_period_us; ...
目前关于利用单片机开发板模拟键鼠常见的方案可以用ARDUINO Uno开发板加电阻模拟为usb设备,或者重烧16u2这样的串口转usb芯片来让开发板能具有模拟USB设备的能力。如下图 但是实际上无论是ARDUINO的用户还是开发者都非常不推荐这种方案,而是推荐用可以原生模拟USB设备的Leonardo这种基于32U4的开发板,是目前市面上比较成熟的...
A bit of advanced knowledge: "A0" maps to "14", "A1" maps to 15, and so forth until A7 maps to 21; this is because there are 14 digital pins (0-14), so the analog numbers come right after these. Therefore, while I find A0...A7 easier to remember, you may prefer to use ...