Pulse Rate Monitor Kit

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Quoting product code: N56FL


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About this product


  • Uses infrared radiation to detect your pulse
  • Output can be seen in the form of a LED flashing with your pulse, or heard via an on-board sounder
  • Requires 4 x AA batteries (Order Code: L43AL)

Product overview

• Uses infrared radiation to detect your pulse• Output can be seen in the form of a LED flashing with your pulse, or heard via an on-board sounder• Requires 4 x AA batteries (Order Code: L43AL)

Rated 1 out of 5 by from Not very pleased with circuit, when complete, doesn't really work at all as expected. Very dissappointing.
Date published: 2014-11-11
Rated 4 out of 5 by from Easy build - worked well - huge fun This was a really quick and easy build. It worked first time and provided good signals. The LED and buzzer indications were in time with my carotid pulse. Positives: The A & D ports are handy for development. The circuit detects pulsatile blood flow in the fingertip. My nine year old daughter was most impressed - it worked for her too. Negatives: The lack of a circuit diagram and the lack of any good description are real minuses. The buzzer sound is really annoying but a bit of development would sort that out easily. This could be a fun project for physiologists and healthcare professionals who like electronics (like me!) ... or for budding medical technologists. Highly suitable as a young person's project. I reckon I got a tenner's worth of fun out of it.
Date published: 2017-12-17
Rated 1 out of 5 by from All round terrible buy! I bought this a few days ago instead of the vellman kits that they also offer to see what the quality of these kits were like. I was pleased to see the chips were in anti-static foam but after trying to solder things on to this board it was very disappointing. the soldering pads came away very easy from the board even at a very low heat. The instructions, well if you can call them instructions its really just a schematic. Although there is a guide of all the different capacitors and all but if I was a beginner I don't think that I would have been able to complete this kit. After finally finishing this kit I was very disappointed to find out it didn't even read your pulse. The buzzer did stop its annoying "bizzzzzzzzzzz" if you pointed the IR led at the receiver and then blocked it and then pointed it at it again etc. There are also two unused terminals labeled "A" and "D" what are these for? Your guess is as good as mine, I would say that it's something to do with expansion but I have no Idea. So the Pros: Soldering tips and component guide is useful for beginners Cons:PCB very bad quality with rough sides and bad solder pads. Instructions for this specific board non-existant Kit useless as it doesn't tell your pulse Would be very hard to tell where to put some components without a multimeter due to some bad labels In conclusion I wouldn't recommend buying this kit for beginners or professionals alike.
Date published: 2016-12-30
Rated 1 out of 5 by from Couldn’t complete, parts missing Components C3, C5, R17 and R18 were missing so I couldn’t complete it. Also, battery box was broken, no damage to outer packaging. Have bought another two kits, hopefully they are compete and I can finish those.
Date published: 2018-01-10
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N56FL Is this kit absolutely complete? Does  it include the infrared sensor? It cannot be seen in the photograph. Thanks

Asked by: Alan
This does come as a complete kit.
Answered by: darren cordon
Date published: 2017-03-21

What is the detector? Is there a clip for a finger?

Asked by: Dave
A small phototransistor and IR led come with the kit. the following document shows them in situ https://maplindownloads.s3-eu-west-1.amazonaws.com/n56fldatasheet-5971.pdf
Answered by: Les
Date published: 2016-04-18

What are terminals A and D for . Kit has a component layout - but no schematic diagram.

Asked by: RFWlon
These are for expansion, but that is not explained in the project as it is not the items intended purpose.
Answered by: Russell
Date published: 2015-07-20

Does the pulse rate monitor kit come supplied with a box to house the finished article?
Asked by: Kevin Heneghan
This is not included
Answered by: DH
Date published: 2015-07-17
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