energy final : tests

by admin

I started putting together some components to see how the circuit for the final may look like. To begin, I connected the stepper motor to the EasyDriver and Arduino. At first I thought the easy driver wouldn’t be enough to run my motor (400 steps/rev 3V 1.7A) because it can only output 750mA, but surprisingly it worked. Apparently, when using these PWM drivers they’ll take care of the voltage and current, even if it’s a higher voltage, by PWMing the coils. Anyway, below are some pictures of the first test – using a 12V 2A power supply connected to the Vin of the Arduino – and the second test – using the bench power supply I was able to run the whole setup from 5V ~130mA, and still get 3.3V to power the Arduino Mini.