Humberto Martínez Barberá

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Simple power supply for Eurorack module prototyping
Eurorack power supply
104
Eurorack format MIDI controller for the Mssiah cartridge. Runs in Commodore 64 computers, and includes a monophonic synthesizer
Eurorack C64 Mssiah MIDI controller
694
Basic electric guitar/bass preamp with tone control and clipping LED. In an Eurorack compatible format
Eurorack electric guitar preamplifier
144
A basic 4 channel mono audio mixer with gain amplifier and a 10 LED VU-meter
Eurorack 4-channel mixer with VU meter
341
Toshiba HX-MU901 keyboard to MIDI conversion using an Arduino
Arduino MIDI for Toshiba HX-MU901 vintage keyboard
349
Design, construction and programming of a simple speedlog for use in small crafts
Arduino speedlog for small crafts
51
A simple circuit and program to operate two servos. A simple 3D printed frame for the GoPro 3/4 models
Arduino pan-tilt for GoPro 3/4
272