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Copyright © 1999 -2003 TAPDRUM (tm)
Last modified: May-2005

HOW MIDI BRAIN WORKS:

The vibration force picked up by piezo sensor convert it to electrical signal.This analog signal converted to digital signal using ADC (Analog to Digital Converter).Controller works as a computer to process digital signal into certain serial MIDI format.In case of Tapdrum MIDI brain, the board has eight sensor inputs(triggers), one MIDI output and one MIDI input.We can modifiy this board and use different sensors for different purpose.Or for example we can use temperature/humidity sensors and convert MIDI output to RS232 serial output.We can use it as Alarm/home monitoring, 8 bit Analog Data Acquisition etc.

 

 

BUILD TAPDRUM DO IT YORSELF (DIY).

STEP 1.

Determine how many triggers you need (8,16,24,32 or more triggers).Each Tapdrum MIDI board can handle 8 trigger inputs.CLICK HERE TO "HOW TO BUILD PIEZO TRIGGERS"

STEP 2.

Assemble Tapdrum MIDI brain board.Get all electronics parts needed an solder them on the board.

TAPDRUM TD-1 MIDI BRAIN

Specs::

  • -Eight (8) analog trigger inputs with sensitivity adjustment (manual trimmer potensiometers).
  • - MIDI IN
  • -MIDI OUT
  • -MIDI channel selector
  • -Map Selector : Eight (8) Preset Map (TD-V2.1) or Programmable MAP(TD-V3.1 and TD-V3.3)
  • -Liniear/log Touch sensitivity selector
  • -Power LED indicator
  • -Peak vibration LED indicator
  • -MIDI Transmiter LED indicator
  • -Power Supply = 6VDC ( needs a DC adaptor )
  • -PCB size: 6.25 " x 3.25"
  • -Use Piezo triggers for analog inputs
  • Table 1 ....... Table 2
  •  
  • -Create 16 triggers by connecting MIDI OUTPUT board 1 into MIDI input board 2 and connect MIDI OUT board2 into Drum Machines/Sound Modules.It needs two(2) TD1 boards.
  • -Create programmable Maps using MIDI sysex program ( such as MIDI-OX freeware) or singleshot button (available only with firmware :TD-V3.1 and TD-V3.3)
  • Build your own BCD to seven segment (New!/option) display and using TD-V3.3 will provide digital display to monitor and change Channel,Map and Velocity table.Only use two pushbuttons to control everything instead of 3 switches and one DIP switch.

STEP 3.

Connect Tapdrum MIDI Board to Drum machine or PC (it needs sound card with MIDI interface capability ).Make sure set the proper channel.Drum notes usually using Channel 10.You should hear voice/sound when you tap piezo triggers.

STEP 4.

You might build your own instrument body to put Tapdrum board/s.We accept custom order to build Instrument bodies such as Rainbow Tapdrum MIDI Controller.