https://github.com/brianlesko/brushed-dc-speed-control

This code and circuit implements speed control of a DC motor
https://github.com/brianlesko/brushed-dc-speed-control

Last synced: about 20 hours ago
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This code and circuit implements speed control of a DC motor

• Host: GitHub
• URL: https://github.com/brianlesko/brushed-dc-speed-control
• Owner: BrianLesko
• Created: 2023-12-24T03:22:17.000Z (11 months ago)
• Default Branch: main
• Last Pushed: 2024-01-10T03:30:33.000Z (10 months ago)
• Last Synced: 2024-01-10T05:35:14.874Z (10 months ago)
• Language: Python
• Size: 1.63 MB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: readme.md

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README

        
# Speed Control of a Brushed DC motor

This code and associated hardware implements speed control of a DC motor. Written in micro Python, implemented on an Arduino Nano, and using a BJT transistor

![Preview](docs/preview.jpg)

 

## Hardware

- `arduino nano`: for sending a pusle width modulated (PWM) signal 

- `Transistor`: with appropriate current rating

 

## Run this demo yourself

The 

 

## How it Works

The app as follows:

1. Place the motor where the LED is in the preview photo

2. Then, drop in your selected power supply with the positive lead straight to the motor, and link the ground to the arduino ground

3. The arduino sends a PWM signal to the Base lead of the transistor

4. The transistor allows current to flow from the collector to the emitor side proportional to the effective voltage on the Base. Use a PNP transistor to have an inverse relationship and an NPN for a positive relationship. 

 

## Topics 

```

Python | micropython | arduino | arduino nano | microcontroller

Motor control | DC motor | brushed DC motor | speed control | Transistor

Self taught coding | Mechanical engineer | Robotics engineer | hardware engineer | controls engineer

Brian Lesko | Brian Joseph Lesko

```

 



 



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