Dijamin Pasti BISA!! Buat Tempat Sampah Pintar Dengan Arduino | Tempat sampah Otomatis [#Tutorial7]

Summary: Smart Automatic Trash Can (Arduino)

Project Goal

Build a smart/automatic trash can that detects a person/object in front of it and automatically opens and closes the lid.

Core Components / Hardware

• Arduino Uno (main controller)
• Mini breadboard
• HC-SR04 ultrasonic sensor (measures distance to detect objects/humans)
• SG90 servo motor (opens/closes the trash lid)
• Jumper cables (male-to-male, male-to-female) and a USB cable
• Trash can lid/container (any bin with a lid works)

Detection Logic / Behavior

• If an object/human is detected within 30 cm, the servo opens the lid.
• Servo movement:
  • Opens to about 100° (noted in subtitles as “100 30°”)
  • Holds for about 5 seconds
• After 5 seconds, the servo returns to 0° to close.

Wiring / Setup Details

HC-SR04 → Arduino (via breadboard)

• VCC → 5V
• TRIG → Arduino pin 8
• ECHO → Arduino pin 9
• GND → GND

SG90 Servo → Arduino

• Brown → GND
• Red → 5V
• Yellow (signal/data) → Arduino pin 10

Troubleshooting Notes

• One failure was caused by incorrect power connections (Arduino pins were not properly connected to GND and 5V).
• The issue was resolved by correctly connecting GND and VCC (5V).

Arduino IDE / Software Steps

• Connect the Arduino to a laptop via USB, then in Arduino IDE:
  • Tools → Board → Arduino Uno
  • Select the correct port (the Arduino port must appear)
• Code availability: The coding is described as being provided via a Google Drive link in the description.
• Servo library requirement:
  • If the Servo library isn’t installed:
    • Tools → Manage Libraries → search/install Servo
• Testing:
  • Place a hand/object in front → servo rotates open, then returns to 0°.
  • Subtitles mention an opening around 130° (likely a parameter/variation from the code).

Mechanical Build Notes

• Servo mounting uses iron wire + hot glue.
• A hole is made in the trash lid to route the ultrasonic sensor cable.
• Tidying recommendation: color-code wiring so GND vs VCC vs data don’t get mixed up.

Power / Usability Improvements

• The Arduino does not need to stay continuously connected to the laptop.
• It can run on battery power, for example:
  • 18650 battery (battery input)
  • 9V / 9–12V battery pack using a power supply (subtitles mention a 9V “box”)
• Optional improvement: add an on/off switch.
• Final goal: cables are tidied so the build is ready to use.

Main Speakers / Sources

• Tutorial creator / channel host: no specific name provided in the subtitles.
• Source content comes from the “aha” robotics & electronics channel.