Touchless Automatic Dustbin

As we are living in a pandemic, developing products with a touchless function will undoubtedly assist to limit contact.

BeginnerShowcase (no instructions)1 hour80

Things used in this project

Hardware components

RTL8722DM_MINI

Ultrasonic Sensor - HC-SR04 (Generic)

SG90 Micro-servo motor

Story

Ameba RTL8722DM is a low-power dual-band WLAN and Bluetooth Low Energy SoC by Realtek. The RTL8722DM also include memory for Wi-Fi protocol functions and application making it simple for anyone to develop various kind of IoT applications. At the same time it has a wide range of peripheral interfaces. With all these interfaces, it can connect to most of the electronics components like LEDs, temperature and humidity sensors, and so on.

More Resources:

If you need additional technical documents or the source code for this project. Please visit the official websites and join the Facebook group and forum.

Ameba Official Website: https://www.amebaiot.com/en/
Ameba Facebook Group: https://www.facebook.com/groups/amebaioten
Ameba Forum: https://forum.amebaiot.com/

Programming

void loop() 
{
  float duration,distance;
  digitalWrite(trigger_pin,HIGH);
  delayMicroseconds(1000);
  digitalWrite(trigger_pin, LOW);
  duration = pulseIn(echo_pin,HIGH);
  distance = (duration/58);
  Serial.print(distance);
  Serial.println(" cm");
  time = time + inter_time;
  delay(inter_time);
  if(distance < 10)
  {
    for(int i = 1500; i>= 1100; i-=25)
    {
      myservo.writeMicroseconds(i);
      Serial.println("2");
      delay(1000);
    }
    delay(1000);
    for(int i=1100; i<=1500; i+=25)
    {
      myservo.writeMicroseconds(i);
      Serial.println("1");
      delay(1000);
    }
    }
  }