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→Step 2 Software Installation
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[[File:laser_step3.png|600px|]] | [[File:laser_step3.png|600px|]] | ||
Find the Arduino code here. | Find the Arduino code [[File:TestCode.zip| here]]. | ||
Note: 9V external power supply is necessary for driving a stepper. The USB power supply is not sufficient since it has a current limit. | Note: 9V external power supply is necessary for driving a stepper. The USB power supply is not sufficient since it has a current limit. | ||
Do please turn off the power supply, if you want to exchange the connection of the 4 pins of the stepper. Or it may damage your circuit because it may generate an inverse voltage. | Do please turn off the power supply, if you want to exchange the connection of the 4 pins of the stepper. Or it may damage your circuit because it may generate an inverse voltage. | ||