Intro Arduino has a limited current sinking/sourcing capability (less than 40 mili Amps) on its pins. Whenever you intend to switch a device which needs high current or high voltage (like a lamp or a motor) an intermediate circuit is needed. In the simplest case this intermediate circuit is a relay. Relays Relay acts as a […]
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Introduction Simple note works like a musical keyboard. It has 8 buttons which you can use to plays notes (C D E F G A B C) similar to a piano. Pitch and duration of the notes (Octaves) can be adjusted by a potentiometers or hard-coded in the code. The video below shows the circuit […]
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Introduction Micro sequencer plays a sequence of 4 randomly chosen tones on Arduino. Tempo (playback speed) and tone length (more like a tremolo) can be controlled via two analog inputs. Four buttons control the octave of the tones where another button is used to generate a new random set of tone sequence. The sequence can be […]
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