https://github.com/techn0man1ac/simplebldc

Simple Arduino based 650W BLDC motor controller. Designed by KiCAD 9.
https://github.com/techn0man1ac/simplebldc

arduino bldc kicad motor motor-controller

Last synced: 9 months ago
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Simple Arduino based 650W BLDC motor controller. Designed by KiCAD 9.

• Host: GitHub
• URL: https://github.com/techn0man1ac/simplebldc
• Owner: techn0man1ac
• License: mit
• Created: 2025-04-06T16:52:29.000Z (about 1 year ago)
• Default Branch: main
• Last Pushed: 2025-05-19T17:31:10.000Z (12 months ago)
• Last Synced: 2025-05-19T18:41:02.511Z (12 months ago)
• Topics: arduino, bldc, kicad, motor, motor-controller
• Language: C++
• Homepage:
• Size: 28 MB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# SimpleBLDC

This is simple Arduino based 650W BLDC motor(with Hall sensors) controller. Designed with [KiCAD](https://www.kicad.org/). This controller has version V0.1, which means it is still under development. **The source files can be changed.**

![SimpleBLDC PCB in real life](https://raw.githubusercontent.com/techn0man1ac/SimpleBLDC/refs/heads/main/PCB/IMGs/Real_BLDC_Face.jpg)

Simple BLDC 3-Phase BLDC motor driver specs:

- Battery: 8S 

- VCC: 24.0V to 33.6V

- I(max): 20A 

- Сurrent measurements per phase

![SimpleBLDC PCB in real life_back](https://raw.githubusercontent.com/techn0man1ac/SimpleBLDC/refs/heads/main/PCB/IMGs/Real_BLDC_back.jpg)

The device has the following features:

- XT60 power connector;

- Arduino Nano V3.0 main controller;

- Overcurrent protection (fuse);

- Reverse polarity protection;

- The ability to work with non-collector motors via Hall sensors (electric scooter or electric bicycle);

- Monitoring and control of the current of each phase (current is measured in both positive and negative directions);

- Current control by PWM, operating frequency 16/32 kHz;

- Has a connector for connecting a traction control potentiometer and a reverse button.

- Publication of the project under the [MIT license](https://github.com/techn0man1ac/SimpleBLDC/blob/main/LICENSE).

# Schematic

![BLDC motor driver schematic](https://raw.githubusercontent.com/techn0man1ac/SimpleBLDC/refs/heads/main/PCB/IMGs/Schematic.jpg)

The device has 3 drivers for mosfet transistors, as well as 3 current sensors based on the Hall effect, which measure both in the positive and negative directions. The use of 3 sensors is the reason for the development of the device for regenerative braking.

# PCB

The board consists of two layers: top and bottom. All the main parts are located on the top layer.

![Face PCB side](https://raw.githubusercontent.com/techn0man1ac/SimpleBLDC/refs/heads/main/PCB/IMGs/PCB_face.png)

The bottom layer contains mainly earth and power tracks.

![The PCB bottom laye](https://raw.githubusercontent.com/techn0man1ac/SimpleBLDC/refs/heads/main/PCB/IMGs/PCB_back.png)

Board sizes is 72 x 99 mm:

![BLDC motor driver schematic](https://raw.githubusercontent.com/techn0man1ac/SimpleBLDC/refs/heads/main/PCB/IMGs/PCB_sizes.png)