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How to Build a DIY Drone from Scratch Part 2: Using Arduino Nano as a Flight Controller

DevicePlus Editorial Team
Published by DevicePlus Editorial Team at October 12, 2021
Categories
  • Arduino
Tags
  • Arduino
  • arduino nano
  • drone
How to Build a DIY Drone

Originally published by Mar 25, 2019

Arduino Drone

Build your own DIY Arduino Drone

Table of Contents

  1. How to Build a DIY Drone: Overview
  2. DIY Arduino Drone Components
  3. Step 1: Assembling Your Drone
  4. Step 2: Connecting Motors to Arduino
    1. Motor RF (Right Front)
    2. Motor LF (Left Front)
    3. Motor LB (Left Back)
    4. Motor RB (Right Back)
  5. Related Articles

How to Build a DIY Drone: Overview

If you’re a drone enthusiast and love being creative about drones, then this instructable is for you! We build a really cheap DIY drone from ballpoint pen ink tubes and thermocol in Part 1 of this series. Part 2 guides you to build your own DIY Arduino Drone which will be ready to use on its own OR along with a GPS “follow me” capability which will be discussed in the next part. The easy-to-build mini drone follows you on your way.

It uses Bluetooth to communicate with your smartphone and utilizes the GPS coordinates of your cell phone to track you wherever you go. This autonomous drone lets you do your work and minimizes the headache of manual control. Let’s see what goes into making this cheap follow me mini quadcopter.

DIY Arduino Drone Components

1.Arduino Nano: It’s the brain of your drone. It’ll control its movement and integrate other circuits.

DIY Arduino Nano

DIY Arduino Nano

2. A mini-drone kit that includes:

a. 4 miniature motors: You can find them at an electronics hobby shop. Aim for a motor with a rating of 400-500 KV.

DIY Arduino miniature motors

DIY Arduino miniature motors

b. 4 motor jackets: Used to hold the motors in place.

c. 4 propellers: Preferably, choose a diameter of 10cm. While buying, make sure the propellers fit firmly on the motor’s rotors.

DIY Arduino drone-propellers

DIY Arduino drone-propellers

d. Li-polymer battery: A 3.7V battery with a rating of 300-500mAh and 25C would be enough to give a flight time of 10-15 minutes.

DIY Arduino Nano battery charger

DIY Arduino Nano battery charger

e. Battery charger: Choose a 3.7V battery charger, perhaps bought with the battery.
f. Frame: You can even build one of your own, or you can get one from amazon.

DIY Arduino frame

DIY Arduino frame

3. A Bluetooth module: Choose an HC-05/HC-06 Bluetooth module. You can find it online for less than $3.

DIY Arduino bluetooth module

DIY Arduino bluetooth module

4. A NEO-6M-001 GPS module: It’s used to get the current coordinates of the drone. You can find it online for just $9.

DIY Arduino GPS module

DIY Arduino GPS module

5. Soldering rod and soldering wire: To solder components on the perf board.

soldering rod and wire

soldering rod and wire

6. Transistors: Three pieces of 2N2222 NPN bipolar transistors

bipolar transistors

bipolar transistors

7. Perf board/ PCB: It’s needed to mount the circuit.

Perf Board / PCB

Perf Board / PCB

8. Cutter: Needed to cut the perf board.

9. Hot glue/tape: Will keep the circuit in place.

Step 1: Assembling Your Drone

As the first step, you need to build a mini-drone. Get the motors and mount them in the jackets such that the wires are stretched out of the small opening.

Get the motors and mount them in the jackets

Get the motors and mount them in the jackets

Now, insert the wires in the arms as shown in the picture. You can use pen ink tubes to build your own arms.

insert the wires in the arms as shown

Insert the wires in the arms as shown

Connect the central assembly frame to the other end of the arms

Connect the central assembly frame to the other end of the arms

Connect the central assembly frame to the other end of the arms and fasten the screws of the arms.

Connect the central assembly frame

Connect the propellers to the motors.

Connect the propellers to the motors.

Step 2: Connecting Motors to Arduino

Now, you need to connect your motors to your Arduino Nano. Make connections as shown in the schematic diagram. You need to MIND THE POLARITY of the motors; otherwise, your drone won’t fly. Motors connected to opposite arms should spin in the same direction (see the picture showing the direction of rotation of propellers). Moreover, to provide the rated current to the motors, you need to add transistors, as the Arduino itself isn’t enough to supply the required current to the motors. Insert the legs of the components into the perf board and solder them. Make connections as follows:

Motor RF (Right Front)

Wire 1 (Motor) -> Collector (Pin 1) of Transistor 1

Wire 2 (Motor) -> +5V

Base (Pin 2) of Transistor 1 -> Pin 6 (Arduino)

Motor LF (Left Front)

Wire 1 (Motor) -> Collector (Pin 1) of Transistor 2

Wire 2 (Motor) -> +5V

Base (Pin 2) of Transistor 2 -> Pin 8 (Arduino)

Motor LB (Left Back)

Wire 1 (Motor) -> Collector (Pin 1) of Transistor 3

Wire 2 (Motor) -> +5V

Base (Pin 2) of Transistor 3 -> Pin 9 (Arduino)

Motor RB (Right Back)

Wire 1 (Motor) -> Collector (Pin 1) of Transistor 4

Wire 2 (Motor) -> +5V

Base (Pin 2) of Transistor 4 -> Pin 12 (Arduino)

Connecting Motors to Arduino
Circuit diagram

If a motor doesn’t move in the intended direction, swap its pins.

Propellers test

There you go, now you have a fully functional Arduino powered DIY Mini Drone to fly around the house or outside. But do you want a hands-free version that can follow you almost anywhere? For the next part of this Arduino DIY Drone series we will be teaching you how to set up a GPS tracking mechanism that syncs with your phone.

Related Articles

Explore Parts 1 & 3 of our DIY Drone series as well as other related articles below:

  1. Building a DIY Drone from Scratch (Part 1): Building a Cheap DIY Drone
  2. Building a DIY Drone from Scratch (Part 3): Making a GPS Follow-Me Drone
  3. An Introduction to Micro Drones for Maker Fans
  4. Turning a Compact Micro Drone into Your Own Original Airframe (Part 1)
  5. Turning a Compact Micro Drone into Your Own Original Airframe (Part 2)

 

DevicePlus Editorial Team
DevicePlus Editorial Team

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