1985 Guitar Synth

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1985 GUITAR SYNTH

The "Robot face" PCB

The 1985 Guitar Synth is an 8-bit sounding square wave fuzz with both octaves down, octaves up and detuned modes. It is based on the Attiny85 microcontroller (it uses two of them) and it was the first digital guitar synth from Parasit Studio.

The octave down section is a simple frequency divider, while the octave up oscillator is based on a frequency counter that sounds super glitchy, like a malfunctioning R2-D2.

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There's also a hidden feature! Hint: It will activate at power up (or by pressing the optional reset switch) if the octave switches are set in a certain position...

PCB available in the shop • with microcontroller included • PCB only File(s) • Build document PDF

DIY kit available from Das Musikding

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PROGRAMMING YOUR OWN ATTINY85 CHIPS If you know how and have the required hardware & software, you can save a few bucks and program your own Attiny85 chips. If you are not sure how to do this, I recommend that you get the preprogrammed chips.

​Note: Both chips needs to run at 8mhz (insted of the default 1mhz), so run the bootloader to set the clock speed.

• 1985hexfiles.zip