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teensy-cv's Introduction

An opamp board with attenuating pots on inputs to:

  • scale -5/+5V control voltage signals down to a voltage-referenced 0-2.5v range for reading by a Teensy's ADCs.
  • scale up output from Teensy's DAC (and a Teensy PWM output with a low-pass RC filter) to -5/+5V range.

Schematic

PCB

Note: output op amp configuration is inverting, which must be compensated for in code.

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