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We’ll take part in “Micro Robocon”

Hello! It’s coord.e.

Y-modify will take part in a festival name “Micro Robocon” in addition to Maker Faire and GUGEN.マイクロロボコン

The festival, which is held by nippon institute of technology, is a competition for the speed of line-tracing of 1 inch square robots.

It’ll be held at 23 December.

How will we make deal with it

Do you remember about YMZT?

A long long time ago, we made YMZT which is line-tracing robot for RobocupJunior.

Both of them are for line-tracing, so we named new robot as “YMZTμ”(Yamamizyuta micro).

We already have made the prototype.


It has three layers.

It clearly bigger than 1 inch square. (I’ll make it smaller to make PCB version)


So, It is named YMZT, but the hardware is fully different from previous one.

Using PIC32MX270F256B as a processor. (PIC microcontroller with 32bit, 50Mhz, RAM64k, ROM256k) Also it has 6 photo reflector.

there is sensor board with 6 photo reflector on the center bottom of the photo above


It also works with Li-po battery,

OLED Display(128×64, 0.96inch) is also embedded.

it is shown below how the OLED looks when it is working.


I wrote the driver software of the driver ic of this OLED. Then I ported well-known Arduino library Adafruit_GFX  to PIC32 so than we can draw on OLED easily.


Now, this is Nyanyan.

I’ll write the points about hardware.

this robot is only 1 inch, so I could not contrive it much, but , I did!

I used about 20mm x 10mm “mini motor” while most people use about 15mm x 5mm “micro motor” because I wanted more torque and more speed.

And I made tires myself; I cut 12mm wood sick and made a hole on its center, then I put sliced silicon hose around it.



We can’t show the progress before the competition, but we’ll keep sharing the knowledges grown by making YMZTu.

Well, Don’t miss it! Thanks!

Published in PIC YMZT YMZTμ Hardware Announcement Management