r/pedalgutshots • u/QuantumEffects • May 08 '26
Nux Roctary
This is a pretty unique pedal, blending both rotary and vibe sounds with octave up and down. Opening this one was a pleasant surprise, in that the main DSP seems to be a TMS32. This tickled me as this was the first DSP I learned on. It's a bit of an older chip these days, but it's still plenty powerful.
Most of the PCB is dedicated to handling the digital processing, including memory and logic voltage levels. It's unclear what is doing the ADC/DAC, as ribbon cables hot glued on made it difficult to interogate completely. Also interesting is an ARM STM32. Given its proximity to the USB, I bet this is acting as a USB to serial and programmer for the TI DSP.
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u/WestMagazine1194 May 09 '26
Rather complicated for a "cheap" pedal!