Quantity   Component name
1 × Stepper Motor, 12 V, Bipolar https://www.sparkfun.com/products/9238
1 × Adafruit Motor Shield for Arduino v2 https://www.adafruit.com/product/1438
1 × Arduino Leonardo Uno and other boards may work too
1 × NI myDAQ The data acquisition tool used to measure voltage and trigger the pot rotation.
1 × Voltage Controlled Current Source A DIY circuit for converting voltage to current.