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The Talking Table

Narrative
This was created as an activity for a local holiday play club. The background is "spare" wallpaper. The table was created to be the same width as a standard wall paper roll. Some learning points from recent usage:- It needs external control to alter the sensitivity of the sensor pads. Something in he materials of the tables interfered with the dialectic of the sensors. The work around was to prop the table between two plastic chairs. (The talking table worked fine laid on top of the work bench and also the tables at MK maker space, but not in the local church hall). It will need an external control to tweak sensitivity to local conditions. There is also a need to alter the positions of the sound clips so as to vary the game.

AMPS: Talking Table

The finished articles. The pictures and sound files can be easily changed to match any occasion.

AMPS: Talking Table Sensors

The underside of the talking table. 10cm squares of blank PCB's are stuck to the underside and wired back to the processor board.


Components Description / Hardware Functional Areas
Bare Conductive Board

Bare Conductive

  • This is a multifunction board that combines:-
  • Sound file playing (MP3 or MIDI)
  • Capacitive Sensors
  • On board processor (Leonardo eqv of an Arduino).
  • Can be power by LIPO battery or external regulated 5v supply.
There are actually17 sensor pads but only 12 inputs to the processor board. Therefore a set of screw terminals are used cross connect sensor pads with input terminals. A bit like telephone exchange (which is where i got the idea from). I found the the connecting wires could run close to each other without any interference.
AMPS: Cross Patch A close up of the cross-connects.
AMPS-Talking Table-Sensor A numbering scheme was devised to ensure everything connected up okay.
   
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