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Microsswitch or Breadboard control

Former Member

Hello,

 

I am new to Raspberry Pi's however have a Developer background. I am hoping for some assistance creating a BOM to start making a small prototype for fun. What i wish to achieve is capture the response of some push buttons mounted on a board. I wish for the button to be illuminated when on and if button's 1, 6 or 9 are pushed for it to increase brightness momentarily then go back to its normal "on" state. What i was hoping to find out is it best off having a OTS 12v LED microswitch (like attached for testing. I will acquire the mounting caps separately) complete this illuminating actions or control this action using a LED wired into a breadboard to control the event?

 

Either option I was hoping for assistance in building a BOM of compatible components so I can purchase the equipment and start trailing/building on some very basic Python code I've written.

 

Obvious equipment so far Raspberry Pi 2, 8GB MicroSD, 5v Micro USB, Expansions Board & Jumper Wire Kit(recommendations appreciated).

 

Thanks!

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  • What is it your trying to do, it would seem on the face of it to be way over complicating it by using a RPI2 to read a few buttons and illuminate indicators

     

    There must be more to it, if not, have you considered something like an Arduino UNO or one of the less expensive clones

  • in reply to Robert Peter Oakes

    We are trying to create a physical interactive element of an existing questionnaire platform. I am trailing/trying to make a combination of 1 x 2, 1 x 3, 2 x 2 and 3 x 3 Push Button board an extension the existing questionnaire. The questionnaire consists of basic close ended question web form's(LAMP) with pre-recorded vocals of the question being output to a display/speakers. The purpose of what we am trying to trial is to incorporate a large board with push button functionality with the web form to capture feedback from the user, the reason behind the physical element of the questionnaires are specific to people with a disabilities. The end goal will be to see if the physical push button element engages the user more then the web-form with mouse-click alone.

     

    Questionnaire can be as simple as:

         2 x Buttons Yes/No question set may be be "Are you happy?"

         3 x 3 Buttons 1-9 question set "How many cat's can you see?"

     

    Using large illuminated push buttons with clear plastic caps will allow for a simple printed words, colours, numbers, icons or a combination to be interchangeable on the buttons depending on the questionnaire.

  • I'm with Peter on this.

    An Arduino will easily do the button detection/illumination.

     

    You can use analog input and wire the switches so that pressing one results in a voltage change.

    It is much easier than trying to detect rows and columns.

     

    Mark