Make Your Own ESC

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Introduction: Make Your Own ESC

About: Awesome Electronics Tutorials, Projects and How To´s

In this project I will firstly demonstrate how a common ESC works and afterwards create a circuit consisting of an Arduino Nano, an L6234 motor driver IC and a couple of complementary components in order to build a DIY ESC. Let's get started!

Step 1: Watch the Videos!

The two videos give you a good idea of what is necessary to do to create your own ESC. In the following steps I will present you some additional information.

Step 2: Order Your Components!

Here you can find a parts list with example seller (affiliate links):

Aliexpress:

1x Arduino Nano: https://s.click.aliexpress.com/e/_dULoNXh

2x LM393 Comparator: https://s.click.aliexpress.com/e/_dWasUKx

1x L6234 IC: https://s.click.aliexpress.com/e/_d9ewKMJ

4x 470nF, 1x 100nF, 1x 10nF, 1x 220nF Capacitor: https://s.click.aliexpress.com/e/_dU4FEsB

2x 1µF Capacitor: https://s.click.aliexpress.com/e/_d7dOwRz

4x 1kΩ, 3x 10kΩ Resistor: https://s.click.aliexpress.com/e/_dTPpXjt

5x 1Ω Resistor: https://s.click.aliexpress.com/e/_dZjocVh

2x 10kΩ Potentiometer: https://s.click.aliexpress.com/e/_dX83GAF

2x 1N4148 Diode: https://s.click.aliexpress.com/e/_dYR45Bh

Ebay:

1x Arduino Nano: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

2x LM393 Comparator: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x L6234 IC: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

4x 470nF, 1x 100nF, 1x 10nF, 1x 220nF Capacitor: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

2x 1µF Capacitor: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

4x 1kΩ, 3x 10kΩ Resistor: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

5x 1Ω Resistor: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

2x 10kΩ Potentiometer: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

2x 1N4148 Diode: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

Amazon.de:

1x Arduino Nano: http://amzn.to/2w0QQLZ

2x LM393 Comparator: http://amzn.to/2uRTgaM

1x L6234 IC: http://amzn.to/2w2M2VK

4x 470nF, 1x 100nF, 1x 10nF, 1x 220nF Capacitor: http://amzn.to/2wUe03i

2x 1µF Capacitor: http://amzn.to/2wUyby6

4x 1kΩ, 3x 10kΩ Resistor: http://amzn.to/2vujMKZ

5x 1Ω Resistor: http://amzn.to/2vzjBwc

2x 10kΩ Potentiometer: http://amzn.to/2uRZveE

2x 1N4148 Diode: http://amzn.to/2fCTO2E

Step 3: Create the Circuit!

Here you can find the schematic along with reference pictures of my board layout.

Step 4: Upload the Code!

Here you can download the code that I created for the project. Since I created quite a few of them you can download them all.

Sketch 1: Uses the analogRead function to measure the current

Sketch 2: Uses the external interrupt on pin 3 to measure the current

Sketch 3: Uses timer 2 to control the current chopping

Sketch 4: Uses the interrupts on pin 10,11,12 to switch to the next step

Step 5: Success!

You did it! You just created your own ESC!


Feel free to check out my YouTube channel for more awesome projects:

http://www.youtube.com/user/greatscottlab

You can also follow me on Facebook, Twitter and Google+ for news about upcoming projects and behind the scenes information:

https://twitter.com/GreatScottLab
https://www.facebook.com/greatscottlab

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    28 Discussions

    0
    yassinzwin
    yassinzwin

    4 months ago on Step 5

    High experiment and idea for teaching,

    1
    Gokulias
    Gokulias

    10 months ago

    I want to 36v 250w bldc motor controller can you make it ?

    3
    ArunS198
    ArunS198

    1 year ago

    1x Arduino can run bldc motor without Nano or help please

    0
    karthikanchan
    karthikanchan

    Question 1 year ago on Introduction

    hi,
    I am doing a project using ESC circuit that is run using arduino uno. I am using this circuit to run a small 12v compressor, the expected flow rate to be obtained is 11 litres/min,but i am able to obtain only 7.5 l/m at the maximum speed of the compressor. So should i increase the voltage to the compressor or the speed of the compressor can be increased by the code itself?
    the link form where i have referred this circuit and code is given below,please have look at it and help me if should make changes in code?.if yes then please help me with the changes in code too.

    https://simple-circuit.com/arduino-sensorless-bldc-motor-controller-esc/

    0
    adrianl126
    adrianl126

    1 year ago

    Hi Great Scott my question is, do you think the basic code will run on a senseless squirrel cage induction motor that has no magnets and whose load is a simple green house fan?

    1
    ZellitoH
    ZellitoH

    1 year ago on Introduction

    Hi Scott, the actual boards pictures you show do not look like the electronic diagram. What changes do I need to make to make this work ?
    Thanks

    0
    AiltonO
    AiltonO

    Question 2 years ago

    what changes i have to do for made a esc for a brushed motor ?

    0
    liu.sunny
    liu.sunny

    Answer 2 years ago

    this driver is only for brushless motor, brushed motor is a completely different structure and you cannot modify from this driver

    0
    EdaÇ3
    EdaÇ3

    Question 2 years ago on Step 5

    Hi,I want to try this project.But before the create it, I want to simulate in the program .Which simulation program you use ?Can you help me?

    0
    diy_bloke
    diy_bloke

    2 years ago

    Followed this on youtube. Great work, learned a lot

    0
    PierceB4
    PierceB4

    2 years ago

    hi, i have a quick question about this design, if im using Sketch 4 can i remove everything between pins 14 and 17 on the motor controller and pin 3 on the Arduino, the reason i ask is that i am limited on size in my current project

    0
    Thợ RènB
    Thợ RènB

    2 years ago

    cám ơn bạn rất nhiều !

    0
    indram11
    indram11

    2 years ago

    Hello...i've been trying to make esc based on your project, i already downloaded your arduino's code but i couldn't create the sketch and since i'm still learning in arduino, so i want to ask you about your code in your video, does that video show the full code of the project?

    Sorry for my bad english.

    0
    Ivan4567
    Ivan4567

    2 years ago

    Hello! Is it possible to implement a digital speed reference? Without using a potentiometer.

    0
    AllexandruP
    AllexandruP

    2 years ago

    make a video ; comparators vs opamp

    0
    ahmet_024102
    ahmet_024102

    3 years ago

    can you add good schematic photo.
    can you share good ? because not sure names

    0
    mikeanton
    mikeanton

    3 years ago

    Great instructable, but I think there are a few errors in your schematic. The RC filters you have on the comparator inputs look to be drawn incorrectly. The capacitor should be located directly on the comparator pin, so that the capacitor forms a voltage divider along with the resistor, to form a lowpass filter. As drawn, the capacitor is right across a low impedance source, so it will have little to no effect.

    0
    JaccoV
    JaccoV

    3 years ago

    Awesome project! We made it exacatly like you.. The only problem is that the motor isn't spinning fast enough. Do you have any idea why this is happening? We using the software 4.ino

    0
    kevinmaker2018
    kevinmaker2018

    3 years ago

    Very good project.I had bought some parts form Makerfabs. Hope every thing is OK. Could you please sharing the eagle files? Thanks!

    0
    doctek
    doctek

    3 years ago

    Very nice! How about a high res version of the schematic that I could actually read? That would be much appreciated.