Motion and speed detector

What are you developing?
zmemw16
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Re: Motion and speed detector

Post by zmemw16 » Sat Jun 17, 2017 1:13 pm

from that st.com page

Code: Select all

Measures absolute range up to 2m
are you using it for landing/controlling a crash landing(attempting to)? :)
srp

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RogerClark
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Re: Motion and speed detector

Post by RogerClark » Sun Jun 18, 2017 10:44 am

Just to wrap this one up; at least for the time being, I've documented my findings in my blog

http://www.rogerclark.net/investigating ... r-modules/

Taking the signal from pin 12 seems the best option to me as it allows for the MCU application code to choose the trigger threshold, or perhaps a more complex triggering algorithm etc

I don't think it will be much use for anything other than short range motion sensing. But that has plenty of uses.

ChrisMicro
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Re: Motion and speed detector

Post by ChrisMicro » Sun Jun 18, 2017 11:30 am

Hi Roger,

here is an article about an Arduino speed radar:
http://www.hjberndt.de/soft/radar/
It is in German but probably google can translate ..

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Pito
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Re: Motion and speed detector

Post by Pito » Sun Jun 18, 2017 11:42 am

That is a different league, however :)
https://arduino-hannover.de/2015/11/14/ ... darsensor/
27Euro?
Last edited by Pito on Sun Jun 18, 2017 12:34 pm, edited 3 times in total.
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ChrisMicro
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Re: Motion and speed detector

Post by ChrisMicro » Sun Jun 18, 2017 11:48 am

On ebay ~22€.

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Pito
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Re: Motion and speed detector

Post by Pito » Sun Jun 18, 2017 11:48 am

http://shop.weidmann-elektronik.de/inde ... ct&info=29
12Euro.. + shipping(??)
EDIT: 4-6Euro within EU and DHL..
Last edited by Pito on Sun Jun 18, 2017 12:36 pm, edited 1 time in total.
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ChrisMicro
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Re: Motion and speed detector

Post by ChrisMicro » Sun Jun 18, 2017 11:54 am

It seems they have only shippment in Europe.
Rapa Nui seems not to be on the list...
http://shop.weidmann-elektronik.de/inde ... ID=&coID=1
Probably you can find another distributor on ebay:
http://www.ebay.co.uk/itm/Radarsensor-1 ... Sw1~JZPyb9

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Pito
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Re: Motion and speed detector

Post by Pito » Sun Jun 18, 2017 11:58 am

Rapa Nui seems not to be on the list...
No problem, I fly often to DE, I was born in a Lufthansa flight :)
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ahull
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Re: Motion and speed detector

Post by ahull » Thu Aug 10, 2017 11:09 am

I've not had much spare time recently, so I haven't pursued this topic, but some of you might find this interesting.

http://hackaday.com/2017/08/10/making-a ... t-awesome/
- Andy Hull -

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RogerClark
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Re: Motion and speed detector

Post by RogerClark » Thu Aug 10, 2017 9:52 pm

Hi Andy
I saw that as well. I have 2 of those modules, but have not had time to even power them up.

I see that the output voltage is very low, but appears to be AC, so I was thinking of using one of those $1 audio amplifier modules, to boost the output, before feeding into a blue pill.

I just need to remember where I put the audio amplifiers ;-)

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