# Help with ball tracking

**URL:** https://forum.core-electronics.com.au/t/help-with-ball-tracking/22857
**Category:** Finding Parts
**Created:** [15 July 2025 23:11 UTC](https://forum.core-electronics.com.au/t/help-with-ball-tracking/22857 "2025-07-15T23:11:11Z")
**Posts on this page:** 6
**Page:** 1

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### Author: ![Hisa299171](https://avatars.discourse-cdn.com/v4/letter/h/54ee81/32.png) [@Hisa299171](https://forum.core-electronics.com.au/u/Hisa299171)
#### Post date: [15 July 2025 23:11 UTC](https://forum.core-electronics.com.au/t/help-with-ball-tracking/22857/1 "2025-07-15T23:11:11Z")

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Hello,

I have a small project at home to measure the speed and direction of a softball hit off a tee for my daughter so she knows where the ball went and how far by calculating the initial velocity and the direction with Raspberry Pi.

I have tried camera solutions but none of them provided reliable results. High speed camera with right exposure was needed but high speed cameras are too expensive that I cannot afford and the detection of a ball and the velocity was quite tricky when dealing with 3D space where the camera can only capture 2D surface.

I almost gave up my project after looking for a solution for months . Then I came across the product RD-03D radar. It looked very promising so I contacted core-electronics support, but I was told this radar sensor isn’t suitable for detecting high speed objects.

I was wondering if anyone has a good advice.

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### Author: ![Robert93820](https://avatars.discourse-cdn.com/v4/letter/r/ac91a4/32.png) [@Robert93820](https://forum.core-electronics.com.au/u/Robert93820)
#### Post date: [16 July 2025 00:57 UTC](https://forum.core-electronics.com.au/t/help-with-ball-tracking/22857/2 "2025-07-16T00:57:40Z")

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Hi Hisa  
Golf teaching professionals use a similar device when analysing a student’s performance.  
This seems to measure velocity, direction and spin direction and rate then predicts the flight of the ball for display on a screen. Probably measures other things too.

Some research might turn up how this all works and might give you some ideas.  
Maybe worth a look.  
Cheers Bob

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### Author: ![Hisa299171](https://avatars.discourse-cdn.com/v4/letter/h/54ee81/32.png) [@Hisa299171](https://forum.core-electronics.com.au/u/Hisa299171)
#### Post date: [16 July 2025 01:26 UTC](https://forum.core-electronics.com.au/t/help-with-ball-tracking/22857/3 "2025-07-16T01:26:47Z")

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Maybe I just wasn’t looking in the right place.  
I’ll try again.

Thanks for your input.

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### Author: ![James46717](https://avatars.discourse-cdn.com/v4/letter/j/e5b9ba/32.png) [@James46717](https://forum.core-electronics.com.au/u/James46717)
#### Post date: [16 July 2025 04:46 UTC](https://forum.core-electronics.com.au/t/help-with-ball-tracking/22857/4 "2025-07-16T04:46:26Z")

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Mapping objects moving in 3D real time is no easy task. Anything that does this would have some very fancy algorithms to calculate all the vectors, probably has a custom chip just for that purpose. Would use AI to recognise the ball path and track it. I would not even know where to start considering the maths involved.

Finding a commercial product for a cheap price would be the best option.

Cheers  
Jim

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### Author: ![Robert93820](https://avatars.discourse-cdn.com/v4/letter/r/ac91a4/32.png) [@Robert93820](https://forum.core-electronics.com.au/u/Robert93820)
#### Post date: [16 July 2025 05:18 UTC](https://forum.core-electronics.com.au/t/help-with-ball-tracking/22857/5 "2025-07-16T05:18:42Z")

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H ALL

> [@James46717](#):
>
> Finding a commercial product for a cheap price would be the best option.

Good luck with that. But you never know with these clever Chinese these days.  
Cheers Bob

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### Author: ![ahsrab292840](https://avatars.discourse-cdn.com/v4/letter/a/ecb155/32.png) [@ahsrab292840](https://forum.core-electronics.com.au/u/ahsrab292840)
#### Post date: [16 July 2025 15:52 UTC](https://forum.core-electronics.com.au/t/help-with-ball-tracking/22857/6 "2025-07-16T15:52:50Z")

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RD-03D Radar is a short-range presence and motion detection sensor, not optimized for measuring fast-moving small objects.I think you need to use Multiple Radar Sensors or a Microphone Array. Doppler Radar Sports Sensors like the Velocity Radar by Pocket Radar, or industrial sensors like InnoSenT IPS-245 or HB100 with custom processing will be best.
