Fab Academy 2014,
Masato Takemura

Weekly Assingments

Class12: Output device
April 16th,2014

Memo

I lerned about any kinds of output devices.

This week's assignment is making any output devices that is designed by my self. So I decided to make stepper motor controler for my final project.

First, I designed a circuit with EAGLE CAD. It's my first charange for using EAGLE. I installed from AS220 webpage. It was very usefull.

fig1.

fig.2,fig.3

I exported bellow two BMP for milling.

left:fig4.pattern right:fig5.cutout

After I designed a circuit, I assembled.

fig.6

I used a prepared code "hello.stepper.44.wave.c". I wrote the code into the chip by using AVRISP.

fig.7,fig8

left:fig.code right:result of writing program

I connect FTDI cable for supplying power. It worked!! This code rotate stepper moter wavy and increase speed step by step.

fig.9