OpenCR入门教程-开发示例-电容式触摸传感器

说明

• 本教程介绍在OpenCR板上的电容式触摸传感器测试例程

传感器参数

• 引脚

- 绿 : Signal
- 红 : Vcc
- 黑 : Gnd

• 规格

• Capacitive Touch Sensor Specification

• Supply Voltage : 3.3V to 5V

• Interface : Digital

代码

• 将手放在传感器上时，led会依次打开/关闭，然后当放手手时LED会熄灭

• 电容式触摸传感器传感器信号连接到OpenCR的D0

#define SensorINPUT             0
#define BDPIN_LED_USER_1        22
#define BDPIN_LED_USER_2        23
#define BDPIN_LED_USER_3        24
#define BDPIN_LED_USER_4        25
int LED[] = {BDPIN_LED_USER_1, BDPIN_LED_USER_2, BDPIN_LED_USER_3, BDPIN_LED_USER_4};
int i = 0;

void setup()
{
  pinMode(SensorINPUT, INPUT);
  pinMode(BDPIN_LED_USER_1, OUTPUT);
  pinMode(BDPIN_LED_USER_2, OUTPUT);
  pinMode(BDPIN_LED_USER_3, OUTPUT);
  pinMode(BDPIN_LED_USER_4, OUTPUT);
}

void loop()
{
  if (digitalRead(SensorINPUT) == HIGH )
  {
    for(i=0; i<4; i++)
    {
      digitalWrite(LED[i], LOW);
      delay(100);
      digitalWrite(LED[i], HIGH);
    }
  }
  if (digitalRead(SensorINPUT) == LOW )
  {
    for(i=0; i<4; i++)
    {
      digitalWrite(LED[i], HIGH);
    }
  }
}

演示视频

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