Operation of Motor:

Using the Arduino Uno and a DRV8825 driver I used a code to have the stepper motor to rotate continuously.  This allows me to easily test the functionality of my pump whilst the motor is running and once it is functioning properly. I can then later  alter the code so that the motor works for a desired number of rotations or time period.

Setup:

Operation:

Testing of the motor in operation with a rotor attached using a 12V 2A power supply.

Next steps:

Now it is time to test the motor fitted into the prototype pump and see if it can provide sufficient power to pump fluid.

Acknowledgment:

I was able to successfully setup and run the code with the aid of the following article by makersguide.com:

https://www.makerguides.com/drv8825-stepper-motor-driver-arduino-tutorial/