Hey so I was think of making a 3d scanner for a while now and I need to control the stepper motor
My stepper motor is a KH42JM2R055 Motor and it requires a current of 1.2 amps.
here is the datasheet if you want to read more details :- http://www.nidec-servo.com/en/digital/pdf/KH42K.pdf
Well I wanted to control this bipolar motor with a l293d motor driver ic and here is the problem.
a website (Driving Any Stepper Motor for Less Than $1 with The L293 — Maker Portal) said that I needed to connect pin 1 to the 5v power logic of an Arduino and when i do that. The LED'S in the arduino fade and I cant upload or anything. (I think it is a short circuit)
and yeah I didn't connect the arduino to the 12v power supply or anything. after I removed the pin 1 to the 5 volts. It starts to work again and I can't control the motor now.
I have connected pin 1,16,9 to the Arduino logic gate(5v) (As the datasheet said that If the enable pin is high then the output is set to equal state as the input pins)
pin 13, 12 to 5v Arduino negative terminal
2,7,10,15 to Arduino digital pins
pin 3, 6 to coil A and -A (According to the datasheet of the stepper motor)
pin 11,14 to coil b and -b
pin 8 as supply voltage(12v)
pin 4,5 12v negative terminal
Posting the schematic you wired to would save us all a lot of time, Frizzy things do not contain all the information. The frizzy thing does not show any connection to Pins 0-7 on the UNO.