peterpressure Posted November 24, 2011 Report Posted November 24, 2011 (edited) Editing this post as I reverse engineer this midi piano... I have some extra parts from a cheap 88-key midi keyboard. The keyboard has been having some issues so I opened it up to see what is inside. It uses an "NXP LPC2101" mcu to transmit keyboard data via an SPI serial interface to an "NXP LPC2136" mcu then MIDI out. NXP LPC2101 mcu http://www.nxp.com/documents/data_sheet/LPC2101_02_03.pdf NXP LPC2136 mcu http://www.keil.com/dd/docs/datashts/philips/lpc2131_32_34_36_38.pdf Edited November 26, 2011 by peterpressure
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