Wet Dry Metal Waste Segregation Project || Smart Dustbin Project Using Arduino
by dhruv-11 in Circuits > Arduino
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Wet Dry Metal Waste Segregation Project || Smart Dustbin Project Using Arduino


This is a tutorial from Skynet Robotics, and today we will learn how to make Wet Dry Metal waste segregation project using Arduino.
Order connection ready kit (inbuilt code and connections)
https://www.skynetrobotics.in/products/dry-wet-and-metal-waste-segregator-components-connection-ready-kit
Order/buy wet dry metal waste segregation project kit at very low price
https://www.skynetrobotics.in/products/dry-wet-and-metal-waste-segregator-components-kit
Order this completely readymade project:
https://www.skynetrobotics.in/products/dry-wet-and-metal-waste-segregator-ready-made-project
Code: https://drive.google.com/file/d/1lK_m_GahzXUPNbveCtvN7E-vKhn6nQRr/view
Supplies
Materials Needed:
- Plywood: 30x12x2 cm
- Craft Paper: To cover the plywood and for labeling
- Arduino Uno: The microcontroller for the project
- Stepper Motor Driver
- IR Sensor: For detecting objects
- Stepper Motor
- Proximity Switch: For detecting metal waste
- Servo Motor
- Raindrop Sensor: To detect wet waste
- 18650 Li-ion Batteries & Holder
- Buzzer
- Shaft Adaptor
- Jumper Wires
- 3x20mm Bolts
- PVC Pipes:1/2" UPVC pipe (20cm)
- 2.5" PVC pipe (7cm)
- 3" PVC pipe (6cm) - Quantity 3
Assemble the Base Components

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- Begin by preparing the plywood base. You can cover it with craft paper for a better look.
- Using double-sided tape, attach the Arduino Uno, stepper motor driver, and buzzer to the plywood base.
Construct the Sorting Mechanism
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- Take the 1/2" UPVC pipe and install an end cap on it using a screw.
- Attach a 1/2" UPVC L-bow to the top of the pipe.
- Drill holes in another 1/2" UPVC end cap and attach this to the 2.5" PVC pipe.
- Connect this 2.5" PVC pipe assembly to the L-bow.
- Mount the IR sensor on one side of the 2.5" PVC pipe and the proximity sensor on the opposite side.
- To create the flap for the sorting chute, take a 3" PVC pipe (30cm long), cut it vertically, and heat it to flatten it into a sheet.
- Trace and cut a circular shape from this PVC sheet, including an extension for the servo motor attachment. This will be the flap that directs the waste.
- Attach the servo motor to the 2.5" PVC pipe assembly.
- Drill holes in the PVC flap and attach the servo motor horn to it using glue.
- Finally, attach the raindrop sensor to the PVC flap.
Assemble the Waste Bins
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- Using the flattened PVC sheet, trace and cut a three-leaf clover shape that will serve as the rotating base for the waste bins. Use the three 3" PVC pipes as a guide for the size.
- Glue the three 3" PVC pipes onto this clover-shaped base.
Electrical Connections
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- Follow the circuit diagram provided in the video to connect all the electronic components.
- Connect the stepper motor to the stepper driver.
- Connect the raindrop sensor, buzzer, servo motor, and IR sensor to the Arduino.
- Connect the stepper driver and the battery holder to the Arduino.
Programming the Arduino
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- Connect the Arduino to your computer via a USB cable.
- Download the necessary code and libraries from the link provided below
- Open the Arduino software, paste the copied code, and add the stepper driver and servo motor libraries.
- Select the correct port and upload the code to your Arduino board.
- Once the upload is complete, you can disconnect the USB cable.
Servo Library: https://drive.google.com/file/d/1-0kZTbaHAZpWOhCsAgO4igQppt3mJt1f/view?usp=sharing
Stepper motor Library: https://drive.google.com/file/d/1QQTCygkXrlKzLTGzOYVpOMXWCPtoFfQk/view
Arduino software: https://drive.google.com/file/d/1zLMTHtGnibHrG6itlEvxm9ocrbwrSygg/view
Final Assembly and Testing
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- Insert the 18650 Li-ion batteries into the battery holder.
- Attach the shaft adaptor to the center of the clover-shaped PVC base.
- Mount this entire assembly onto the stepper motor.
- You can now decorate the three waste bins with different colored craft paper and label them as "DRY," "WET," and "METAL".
- Mark an arrow on the sorting mechanism to show the direction of waste flow.
- Now it's time to test your smart dustbin! Drop different types of waste into the chute and watch as it automatically sorts them into the correct bins.