Martin | Aug. 24, 2017

Joseph | Aug. 31, 2016

Seller should post simple testing code. Works ok, not great

For HB100 Doppler Speed Sensor - Arduino Compatible

Purchase was easy and shipping was very fast with great tracking.
Hooked this up to a breadboard that I also tested the parallax microwave doppler, and another brand from China on. This one had some problems. It sends a continuous signal and doesn't stop, even when there's no motion. I checked the hook up wires to the board and they are correct. Not sure why it's doing this. I used the same exact program and ardiuno uno microprocessor as for the parallax and china models. It might be something in the programming, not sure, but as of right now, I am not able to use this 'tindie' sensor. Hopefully it just needs an adjustment somewhere, maybe in the programming. I did take notice the difference in sensor structure, this one being an HB100 and the other two being GH-719. Not sure if that has anything to do with it.
**It would be extremely helpful if the seller could post some simple testing code for arduino.**

Response from limpkin | Aug. 31, 2016

Hello Joseph,

I'm very sorry about your experience and would have wished you'd have contacted me before to request assistance for your project, as I'd be more than happy to help you.
I'll provide a sample code on this page soon.

Regards,
Mathieu

Nigel | July 28, 2016

Overall A Good Board

For HB100 Doppler Speed Sensor - Arduino Compatible

Just interested in seeing how doppler radar works.

Concentrating on the digital output, I certainly see a change if I walk away or toward the unit at different speeds, but I cannot correlate the speed to a 'scope frequency.

Very wary about write microcontroller code for this as things are the moment.

Response from limpkin | July 28, 2016

Hello,

Could you double check your complete setup? You should get the exact same behavior shown in the demonstration video.
Because of the way the Doppler effect works, the only reason for a given output signal frequency is the speed of the object moving in front of the sensor.

Regards

Jean-Luc | May 4, 2016

HB100 breakout board

For HB100 Doppler Speed Sensor - Arduino Compatible

Hello.
Good delivery, good design.
I did not try the module yet.
On the board is written VOUT and FOUT.
I presume that those signals are prop to the speed.
But could somebody tell me if VOUT = 5VDC -----> SPEED (MPH),
or if FOUT = 32 Hz ------> SPEED (MPH) ?
Thanks for your support !
Best regards,

Jean-Luc

Response from limpkin | May 4, 2016

Hello,

Thanks for the review!
Please have a look at the application note: http://www.limpkin.fr/public/HB100/HB100_Microwave_Sensor_Application_Note.pdf

Regards

Giulio | Feb. 18, 2016

It works!

For The Whistled - A Whistle Detection Device

Funny! :) it works, everything ok, but it takes a lot to receive, it comes from China, not from Germany.

Response from limpkin | Feb. 18, 2016

Thanks for the review! It'd be actually odd if it came from Germany as I'm located in Switzerland :). The devices are sent from Switzerland or China depending on current stock and destination... I'll edit the product description to reflect that.

Eric | Nov. 7, 2015

Sylvain | June 27, 2015

Peter | Jan. 7, 2015

Works great!

For ESP8266 Wifi Module Breakout, USB, 3.3V, Prog But.

The breakout module works great - as expected.
It would be even nicer, if the ESP8266 could be removed from the action breakout board.
(This may not be possible with the SMD version of the board however)
One could then use it to prepare multiple modules for deployment.

Response from limpkin | Jan. 7, 2015

Later on I actually thought I could maybe put 2x2.0mm headers close enough so they could have good electrical contacts with the esp8266.
However doing so may involve going with through hole headers as SMT ones wouldn't be positioned well enough.

Luc | Jan. 7, 2015

Gedeon | Oct. 1, 2014