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Mobile Phone Flasher Module with 2 LEDs

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Brand: RVFM  MPN: BPSH-02M 
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A flashing LED module that responds to the radio signals from adjacent mobile phones.

  • With the current interest in mobile phones, the module provides an excellent basis for a range of product design exercises
  • The module responds to either incoming or outgoing phone signals by flashing a 20 second light sequence through 2 LEDs
  • The module can also be used as an input module for other circuits
  • Built-in antenna
  • Powered by 2x L736 (GP192) button cells (supplied)
  • Click here for suitable replacement cells
  • Effective distance from the phone to the module varies greatly, dependent on the type of phone and the environment, but could be up to 0.5m
  • The notes provide students with essential background information to help develop a range of product design ideas and look at current mobile phone technology and how the style of mobile phones has changed
  • Suitable for Key Stages 2, 3 & 4 (ages 7 to 16)
  • Click here for a detailed series of student and teacher notes

Please note that this module no longer supports the option of adding extra LEDs and is for 2G phones only.
Type Flashing LED module


*Question functionality currently disabled

12 October 2015 Question by: Rapid Customer | Product code: 13-0668
Q. We did this project last year and re ordered the circuits recently to find that they are really quite different and you are not able to mount any additional LEDs to them. Is this the case and has the circuit been modified?
A. Hi Alex, thank you for your question. The circuit board has now been modified form the manufacturer so it does not have any additional mounting points. You may need to be able to remove the old LEDs and use as a switch if required.

14 March 2013 Question by: Rapid Customer | Product code: 13-0668
Q. Hi there, I want to use the other outputs on this device for a school project. Is it possible to add a motor (37-0140) as an output. The motor is 3V so I would need to add possibly a bigger battery. Would this effect the phone flashing circuit or is there anything else you could sugest to allow the motor to run as an output as well as the LED's?
A. Hi Carl. Thank you for your question. The only way you could do this would be to use the output to trigger an additional circuit – with its own power supply, as the batteries would not be sufficient to power a motor as well. The Genie Project kit might help you for this (13-6011) but this is only for a small motor.

20 January 2012 Question by: Rapid Customer | Product code: 13-0668
Q. Please point me in the direction of the detailed lesson plans and notes for this project as advertised in your catalogue. Thank you.
A. Hi, the notes and lesson plans are available in the datasheet which is accessible from the Tech Spec above;


No longer works with most modern phones

Reviewed by: Gordon - 24 March 2017
I bought these for an arts and crafts session with kids. I tested it with my phone and that didn't work, then tried my wife's phone and that didn't work either. Decided to read the notes again and then realized when I read through the comments more carefully that it says that it works with 2G phones. Not entirely sure why Rapid are still marketting them!

Phone FLasher use

Reviewed by: Sioux - 06 November 2011
I used these in 'textiles' to add interest at lower ages/abilities. the LED's show through felt, so we made laser cut shapes that went on to larger textiles items (phone bags, badges, shoulder straps). at most basic we stuck these on with glue (cannot then change the battery - opps) and at higher levels embroidery stitiched these on to create a further embelished decoration pouch for the phone flasher unit..