We’re all accustomed with those agreeable greeting cards. Give the Hallmark abundance $10, and you accept a agenda with a microcontroller central that plays one of several songs available. [Jarv] was arena about with advice MIDI advance to aboveboard beachcomber songs with an Arduino earlier, so he absitively to see how cheaply he could carbon these agreeable cards. The consistent body allows him to put any song he wants in his agenda and costs beneath than the Hallmark offering.
The ambit is acutely basal – aloof an ATtiny 85, a array holder, and two piezo speakers for two-voice harmony. Afterwards soldering up the array and speakers, [Jarv] bare a way to get music on his chip. For this, he acclimated MuseScore, a music characters affairs that allows [Jarv] to absorb assorted choir together.
Once the area music was bankrupt up, [Jarv] acclimated his XML2H Python calligraphy that takes MIDI abstracts and spits out frequencies and delays. In the end, [Jarv] spent beneath than $5 on his greeting agenda – about bargain abundant to alpha cerebration about agreeable throwies to accompaniment the batteries, LEDs and magnets on our window flashing.
Check out the video afterwards the breach to apprehend [Jarv]’s ambit comedy the affair from Toy Story.
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