HELLO KITTY's LEGS

1. ULTRASOUND SENSOR-->1X(grey & orange)

TECHNIC ANG 90 DEG BEAM 4X2-->2X(orange)

TECHNIC CROSS BLOCK 2X1-->2X(grey)

CONNECTOR PEG with FRICTION 3M-->2X(blue)

CONNECTOR PEG with FRICTION-->4X(black)

CROSS AXLE 7-->1X(light grey)

HELLO KITTY

Dear all,

Hello -->it'll make sound "Hello" when you pass through it.

Kitty-->common in every restaurant's and shop's entrances, always watching you with big eyes and shacking its arm.

The idea of course come from those japanese dull. Most of its power are from solar and assisted waving its arms.

So, I wondering, why not just build a kitty from LEGO NXT? Then considering its appearances and functionality and LEGO NXT is using 9 AA batteries.

Energy-->LEGO NXT is using 9 AA batteries, so, saving power is really important for it if you want to positioned it at the entrance for notification.

Shape-->Kitty's ears, squatting, even the angle of waving.

Sound-->most Japanese kitties won't have sound. Thanks for LEGO NXT's multitask

Hello Kitty= security, decoration, saving energy

HELLO KITTY's ARM

Kitty's arm:

1. CONNECTOR PEG with FRICTION 3M-->4X(blue)

2. CROSS AXLE 5-->1X(light grey)

BEAM 1X2 w/CROSS and Hole-->2X(black)

CROSS BLOCK 90-->1X(dark grey)

3. TECHNIC ANGULAR BEAM 3X7-->2X(white)

CONNECTOR PEG with FRICTION-->2X(black)

4. TACHO MOTOR-->1X(grey)

CROSS AXLE 5-->1X(light grey)

LEGWAY

Dear all,

Legway's balance is prefect. Although you have straighten it at beginning and its programming gave 3 seconds to make it still. It reminded me that we have to still the egg during the mid day of Dragon boat festival.

Legway's balance is depending on the PID controller which is manipulated 2 servo motors' power for wheels. Got light sensor for detected the bright and dark.

EXPLORER

Dear all,

The explorer has ultrasonic sensor to detect things in front of it then altered its direction to avoid those subjects. It derived from Bumper Car and I added one stick ahead for removed subjects.

The Explorer's programming is forever loop. First cycle is for start while you touch the "Enter" button and ultrasonic sensor also detected anything within 9 inches. It's my first time using the "Logic Block" for arranged sensors' priority. Second cycle is for touch sensor which in "pressed" mode. It also have some sounds while explorer collided something. Meanwhile, ultrasonic detected again within 90 degrees to the left then to the right (by Compare Block). If something on explorer's left then it'll turn 275 degrees to its right, vise varser. Explorer will continuing move straight forward and all loops.

ROBOGATOR

Dear all,
I followed steps of building a robogat. Although it mentioned 2 starts difficulties but it took me over 3 hours to build.

I built this robogat near mid nite and stried my box for conponts, the noise just like play MaJan (if you have Chinese neighbors then you known what's that noise ).

First part is building its jar, head, legs and tail. I almost apart it because it's hard to circle those cables through the body ,

In roboget's program, part A is for steered its jar and part B is for controlled the front legs' movement. At the beginning, it returned to origin position just for roboget to powerfully rush forward. Its bite (bark) and rush forward occurred at same time. It won't bite without position my hand in front of it.

So, if a subject in front of it within 60 cm then it'll start attack. Within 30 cm then it'll start bite.

Robotget took me 3 hours to build.