2015-03-03 (Tu) Color/Touch + Sound

An inexpensive musical toy was ordered from eBay. The purpose was to convert it to an auxiliary sound source. Each white key corresponds to a note or a tune depending on the pink switch in the lower left corner of the toy. The unit was disassembled to examine the circuitry inside. The entire board was contained on a strip running beneath the keys. The majority of the board was an array of switch pads. The pads were activated by a strip of silicone (probably silicone) with conductive contacts.

 Inexpensive musical toy

The simple insides

Silicone buttons

The switch which controls whether the toy uses notes or tunes was investigated. It was seen that the toy will operate as a note generator if the switch was removed since the switch was in the open position while producing notes. A list of important features found was written on the iPad and photographed for the sake of the blog.

 Switch in open position which operates as a note generator

iPad notes

  1. Create circuit board
    1. Measure configuration and position of angle bracket holes
  2. Create auxiliary music board
    1. Measure frequency of musical toy
    2. Create scale from notes
    3. Program board to use musical notes
  3. Order parts list
  4. Print circuit board at home
  5. Install components 
  6. Test + Verify
  7. Print PCB professionally
  8. Make all documentation public
  9. Upload correct board layout to public PCB manufacturer

The rest of the posts for this project have been arranged by date.

A list showing of all the final posts of COMPLETED projects.

This disclaimer must be intact and whole. This disclaimer must be included if a project is distributed.

All information in this blog, or linked by this blog, are not to be taken as advice or solicitation. Anyone attempting to replicate, in whole or in part, is responsible for the outcome and procedure. Any loss of functionality, money, property or similar, is the responsibility of those involved in the replication.

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This blog, including pictures and text, is copyright to Brian McEvoy.

2015-02-14 (Sa)