ranger robot · 1 x 3-axis accelerometer and gyro sensor 1 x thermistor sensor speaker: 1 x buzzer...

Last update August 2nd, , 2020 of 56

MAKEBLOCK WITH ARDUINO-C

RANGER ROBOT

Samples Documentation

BY : STORMING ROBOTS



TABLE OF CONTENTS

SECTION I - STARTUP ............................................................................................................. 6

about the RangerBot .....................................................................................................................................6

Assemble it ........................................................................................................................................................7

Do’s and Don’ts: ..............................................................................................................................................7

Practice good battery Care: .........................................................................................................................8

Challenge ...........................................................................................................................................................9

SECTION II TO GET STARTED WITH THE SOFTWARE .................................................................... 10

Download mblock software ................................................................................................................... 10

Know the MBlock Interface – Divided into Panes ..................................................................10

Test out your first program. ..................................................................................................................... 13

Tips on the Converted Arduino -C code .............................................................................................. 14

SECTION III SENSING ............................................................................................................ 15

Samples for the Light Sensor ................................................................................................................... 15

Blocky Version -1 .............................................................................................................................15

Arduino-C Version -1 ......................................................................................................................16

Blocky Sample -2 ......................................................................................................................................... 17

Arduino Arduino-C Version ...........................................................................................................17

Samples for the Sound Sensor ................................................................................................................ 18

Blocky Version ....................................................................................................................................18

Arduino-C Version ............................................................................................................................18

Samples for the Accelerometer & Gyro ............................................................................................... 19

Blocky Version ....................................................................................................................................19




Samples for the Thermistor ...................................................................................................................... 21

Blocky Version ....................................................................................................................................21


Samples for the Line Follower ................................................................................................................. 22

Blocky Version ...................................................................................................................................22

Arduino-C Version for Sample 2 ..................................................................................................24

Samples for the Ultra sonic sensor ........................................................................................................ 25

Blocky Version – Sample1 ..............................................................................................................25

Quick Challenge: ................................................................................................................................25

Blocky Version ....................................................................................................................................25

Blocky Version – Sample 2 .............................................................................................................26


Samples for the Timer ................................................................................................................................ 27

Blocky Version ....................................................................................................................................27

Challenge List .....................................................................................................................................27

SECTION IV -PROGRAMMING BUZZER & RGB RING ................................................................ 28

Samples for turning on the Buzzer ........................................................................................................ 28

Blocky Version ....................................................................................................................................28

Arduino-C Version ....................................................................................................................................... 28

Sample for RGB-LED Ring? ....................................................................................................................... 30

Test it out in Live mode... ................................................................................................................30

Blocky Version ....................................................................................................................................30

‘Arduino-C version ............................................................................................................................31

Challenge List ................................................................................................................................................ 32

SECTION V - WORK WITH MOTORS ........................................................................................ 33

Basic Motor movements ........................................................................................................................... 33



Blocky Version ....................................................................................................................................33


Motor movements with ultrasonic sensor .......................................................................................... 35

Blocky Version ....................................................................................................................................35


Motor movements based on rotation per minute ........................................................................... 36

Blocky Version ....................................................................................................................................36

Arduino-C Version ...........................................................................................................................36

Motor movements by the encoder value ............................................................................................ 38

Arduino-C Version ...........................................................................................................................38

Challenge List ................................................................................................................................................ 39

SECTION VI – A BIT MORE ADVANCED PROJECTS .................................................................... 40

Blink faster when it detects louder sound ........................................................................................... 40

Blocky Version ....................................................................................................................................40


Sync your LEDs with sound ...................................................................................................................... 42

Blocky Version ....................................................................................................................................42


Pixel RGB Ring Disco .................................................................................................................................. 44

Blocky Version ....................................................................................................................................44


Movements with encoder measurement ............................................................................................. 46

Activate the PIXEL-RGB RING based on Gyro reading. ........................................................47

Line following with feedack control ...................................................................................................... 48

Get around a known size obstacle with Math ................................................................................... 49

Advanced Dot Matrix Display – Text Scrolling ................................................................................... 50



Blocky Version ....................................................................................................................................50


SECTION VII - APPENDIX ...................................................................................................... 51

What do the colors on the ports mean? .............................................................................................. 51

How to add on additional sensing in the future? ............................................................................. 53

Bug - The 12 RGB LEDs on Ranger ........................................................................................................ 53

Creating your own Scratch Extension ................................................................................................... 53

External Reference: ...........................................................................................................................56



Section I - STARTUP Next ➢

ABOUT THE RANGERBOT

The main controller board Me Auriga

Based on open-source Arduino. Arduino Mega 2560, 256 KB

flash memory, 8 KG SRAM, 4KB EEPROM.

Hardware Serial port. (can

be connected with

Bluetooth module )

Two encoder motor ports

NeoPixels Ring.

(ref: Adafruit)

This power switch is for the

motor!

Buzzer

These 2 light

sensors to test

ambient light.

Go here to view

what the color

codes mean.

Motor Expansion ports

Sound Sensor



LIST :

On-board Sensors/devices

2 x Light sensor

1 x Sound sensor

1 x 3-Axis Accelerometer and Gyro Sensor

1 x Thermistor sensor

Speaker: 1 x Buzzer

12-RGB LED

Wireless Communication: Bluetooth

Sensor modules:

1 x Line follower reflective sensor

1 x Ultrasonic sensor

Motors:

2 x Encoder Motors : 400 RPM . Torque:?

Software and programming: PC-mBlock; iPad/Tablet-Makeblock and Arduino IDE

The Bluetooth module in this kit enables you to connect Ranger with smartphones, tablets or

computers. You can also add a 2.4G module to the Hardware Serial port.

ASSEMBLE IT

Here is a modified building instruction for the Ranger Bot. You may refer back to the manual or the paper manual from the

box.

Do not forget that you will need six 1.5V AA batteries.

DO’S AND DON’TS:

⎯ Do Not push or pull the motor wires.

⎯ Do not swing your robot by using motors as the handler.

⎯ Watch out for low battery indicators:

o If the robot moves very slowly, automatically restarts while turning, bumps into thing or doesn’t move at all

despite the motor speed being set to full power, the batteries are low. If the robot easily loses its balance while

moving or turning, the batteries are low. You should change batteries when any of these symptoms happens.

⎯ Changing batteries? Power down the robot and replace or charge the batteries.

https://www.stormingrobots.com/prod/bi/mblock/RangerBotBuildingInstruction.pdf



PRACTICE GOOD BATTERY CARE:

1 - Use only fresh batteries of AA batteries.

2 - Should always remove batteries if the robot is not in used for some time.

3 - Do not mix old and new batteries, nor different types of batteries, e.g. all alkaline or al rechargeable, etc.

4 - May use either 1.2V (6) AA rechargeable batteries, or 1.5V (6) AA alkaline battery, but use good quality batteries such

as Energizer, Duracell.

5 - Replace all batteries of the same type/brand at the same time.

6 - The positive and negative connection must be correct.



CHALLENGE

- Name the Mechanical Parts of mBot Ranger Robot Kit .



Section II TO GET STARTED WITH THE SOFTWARE Prev Next ➢

DOWNLOAD MBLOCK SOFTWARE

Know the MBlock Interface – Divided into Panes

The screen is divided into multiple sections or "panes" categorized with have different functionalities.

These panels are very self-explanatory. However, I think the the following needs to be emphasized.

Others

the MBlock IDE ( Integrated

Development Environment)

Script Area The scripts area is the work pad where

your code is dragged from Block Palette

to and assembled.

Blo

ck

T

yp

es

Ad

d D

ev

ices

Staging Area

Running

Mode

Menu Bar

P.E.

Staging

Control

Mode

Control

Block Palette

Switch between Arduino-C and

MBlock

https://dl.makeblock.com/mblock5/win32/V5.2.0.exe

https://dl.makeblock.com/mblock5/darwin/V5.2.0.pkg



STAGING AREA & CONTROL

This is an area where you may show variables or sensors values while running your program. This can be extremely useful for

testing data range of a sensor or testing while in Live mode. (see below).

E.g. you have created a variable called “loud”. Once you check the box, it will show up at the Staging area.

Control allows to resize the staging area.

ADD DEVICE AND P.E. (PLATFORM EXTENSION)

1) Add the Ranger Device:

2) Add Extension: the Maker’s Platform

BLOCK TYPES, PALETTE AND SCRIPT AREA

⎯ Block Types: programming commands/expressions Categories

⎯ Script Areas: your programming area.

***Afterwards, you

should keep Ranger

selected at all times.



RUNNING MODE - LIVE VS UPLOAD***

Live : Running your code directly connected to the robot. This takes round trip communication; thus the execution will take

much longer than upload. However, it is a convenient way for testing, debugging and analysis when constant close observation

is necessary. To

1) To enable “Live” mode :

In the Running mode pane:

2)To find the start up command

block:

In Block Type Pane

3)To add in the startup block

In Block Palette Pane

While you may use others, this is

used throughout this document.

4)To run it in Live mode:

Pop up window:

5)shortcut icons for start and stop Live

mode:

Upload : Your code will be compiled into a format that your robot can understand, and downloaded into the robot brain.

This allows your robot to run by itself.

1)To enable “Upload” mode :

In the Running mode pane:

then

2)To find the startup command block:

In Block Type Pane

3)To add in the startup block

In Block Palette Pane

4)To run it:

Pop up window:



IMPORTANT NOTE ABOUT SWITCHING BETWEEN LIVE AND UPLOAD MODE

⎯ Possible failure to reconnect in Live Mode after working in Upload Mode:

o May need to reconnect, or re-update the firmware.

⎯ If you see this, the chance is that you will need to re-update the firmware.

OTHER BASIC OPERATIONS THAT YOU SHOULD BE FAMILIAR WITH :

1 - insert/move/delete a single block vs. a set of blocks.

2 - How to insert/move/delete a set of blocks

3 - How to insert/delete comment

4 - How to create “myBlock” (for more advanced user)

TEST OUT YOUR FIRST PROGRAM.

Best way to learn this it to do a very simple sample:

Step 1: Sample : Play a note with one second pause in-between. Do this forever.

Step 2: Test it in live mode, and click on to test – robot should start buzzing.

Click on to stop.

Step 3: Switch to upload mode. Don’t forget to replace the first block with

this: Upload and Connect. Robot starts buzzing again.

Step 4: (Optional) Test it out with the Arduino -C code.

1 - get a copy of the converted C code by clicking on .

do note that this section is “readonly”.

2 - When the pane filled with C code shows up, copy the whole C program.

3 - Click on Arduino-C Tab.

4 - Paste your code in.

5 - Now you can make modification if you wish.

6 - Upload the code. If you have errors in your code, you will get error message.

!



Automatically generated: To Simplify:

TIPS ON THE CONVERTED ARDUINO -C CODE

1 - You will need to be in “Upload Mode”.

2 - Since this is converted from the Blocky code, it is inevitable to have some template code embedded into the C code.

3 - While the converted code will still work as how it has worked in Blocky.

4 - However, if you do wish to eventually switch to Arduino-C, you should proceed with some cleanup, such as removing

some template codes that do not belong. See the following converted as an example.

5 - Select Mega or Mega 2560 as the controller board in Arduino.

#include <Arduino.h>

#include <MeAuriga.h>

Must include these header files by default.

#include <Wire.h>

#include <SoftwareSerial.h>

These are needed in only some cases. For this sample,

it is not needed.

MeBuzzer buzzer;

Create a variable for the embedded buzzer device.

MeLightSensor lightsensor_12(12);

float on = 0; Useless statements for this sample. Delete them.

void _delay(float seconds) {

if(seconds < 0.0){

seconds = 0.0;

}

long endTime = millis() + seconds * 1000;

while(millis() < endTime) _loop();

}

*** Should keep this Version of delay( .. ) as default,

when working with motor movements with encoder.

May remove for this sample.

Otherwise, you may use the native delay(.. ) API from

Arduino-C.

void setup() {

buzzer.setpin(45);

randomSeed((unsigned long)

(lightsensor_12.read() * 123456));

while(1) {

buzzer.tone(262, 0.25 * 1000);

_delay(0.02);

_delay(1);

_loop();

}

}

void _loop() {

}

void loop() {

_loop();

}

You should follow Arduino vernacular:

Setup( ) should not have an infinite loop.

All codes which need to loop forever should not

moved to loop( ). Replace the section with the

following codes:

void setup() {

buzzer.setpin(45);

}

void loop() {

buzzer.tone(262, 0.25 * 1000);

delay(1);

}

Modify this

section – see

sample on the

right.



Section III SENSING Prev Next ➢

Brightness sensor value

SAMPLES FOR THE LIGHT SENSOR

Best is to do this in Live Mode to start.

Blocky Version -1

1) Create variables ”see”

Make sure you will click on the checkboxes. This

will allow you to view the values in the Stage

Pane.

2) Write your code

Change to larger readout: right click on :

Observe the values, especially the maximum and

minimum.

The number won’t update!?

- Check your code to ensure you did have the variables created, and set to the proper sensor.

- If you do not see the display update, you may need to stop it, reconnect, start again.

Click one of these 3 controls to

change the Stage viewing size.

2 Light Sensors

Click here to start and stop.



Arduino-C Version -1

1) Switch to Upload Mode.

2) Get the converted C code .

⎯

3) Copy the code, then code that window by

4) Open the Arduino window and paste the code in .

5) (Optional) Simplify the code, add in display code, and run it in the Arduino IDE.

6) Make sure you “Disconnect” the robot from the Blocky Environment befroe you try to have Arduino IDE communicated

with the robot.



BLOCKY SAMPLE -2

Let’s work in Upload Mode.

Arduino Arduino-C Version



SAMPLES FOR THE SOUND SENSOR

Best is to do this in Live Mode.

Blocky Version

Let’s do this in Live Mode.

1) Create variables ”loud”

Make sure you will click on the checkboxes. This

will allow you to view the values in the Stage

Pane.

2) Write your code

Arduino-C Version

Click here to enlarge the

Stage viewing window.

3) Click here to start and

stop.



SAMPLES FOR THE ACCELEROMETER & GYRO

Measures the angular rate and the acceleration

This is a MPU-6050 based gyro sensor which combines a 3-axis

gyroscope, accelerometer, and a Digital Motion Processor (DMP)

capable of processing complex 9-axis Motion Fusion algorithms.

Blocky Version


CREATE VARIABLES X, Y, Z

Make sure you will click on the checkboxes. This will allow you to view the values in the Stage Pane.

WRITE YOUR CODE

You will need to select the Newly added Makers Platform.



Click here to start and

stop.

From MakeBlock



Arduino-C Version



SAMPLES FOR THE THERMISTOR

This is a tiny thermometer (a NTC thermistor), where

NTC = Negative Temperature Coefficient

the resistance temperature.

Range: unknown . You should test it based your environment.

Blocky Version

Let’s do this in Upload Mode.

Arduino-C Version

From MakeBlock



SAMPLES FOR THE LINE FOLLOWER

Blocky Version


Observe the values you got back from the Line Following sensor.

SAMPLE 1:

Note :

Only “See “ will change because

other variables are not being

changed.

Very straight forward and simple

make-shift line tracing.

Possible problem:

- when left and right see

black, the robot will just

stop and never proceed.



SAMPLE 2:

Others such as the following are not optimal to use because it will stop the motor after the specified time expired. If you wish

to have the motor continuously running, you should not use these blocks. There are options that you can explore in the

Makers platform. This will be covered in the Motor section later in this article.

Another make-shift sample uses the

possible values from the sensors:

3 = both see white

2 = only left sees white

1 = only right sees white

0 = both see black.

This has the same issue:

- when left and right see

black, the robot will just

stop and never proceed.



Arduino-C Version for Sample 2

This is to initialize the motors. This will be discussed further

in more advanced level. But for the time being, you must

have these included in your program in order to work with

motors.

All Encoder_X references are specific to motors only.



SAMPLES FOR THE ULTRA SONIC SENSOR

Range: approximate 3cm to 400cm

Viewing Angle : 30 degrees angle

Blocky Version – Sample1

Let’s do this in LIve Mode.

Quick Challenge:

Write a Viewing program to probe the ultrasonic sensor to test the minimum and maximum range for the ultrasonic sensor

you have.. Make sure you use a flat solid surface, such as a piece of paper, do not use a cylindrical object, nor objects that

absorbs sound, such as cotton, carpet, etc.

Blocky Version

From MakeBlock



Blocky Version – Sample 2

Arduino-C Version



SAMPLES FOR THE TIMER

Timer works like a timer watch, goes as a float number type with 0.001 second increment

Blocky Version

Let’s do this in LIve Mode.

1) Create variables ”loud”

Make sure you will click on the checkboxes. This will allow you to view the

values in the Stage Pane.

2) Write your code

Challenge List

To be Updated...



Click here here to start and

stop.



Section IV -PROGRAMMING BUZZER & RGB RING Prev Next ➢

SAMPLES FOR TURNING ON THE BUZZER


Blocky Version


ARDUINO-C VERSION

Divide and Conquer! Try the following first before you start typing a lot of them.

After you have tested this, complete the rest. Sample next page:.



(For the Buzzer Sample)



SAMPLE FOR RGB-LED RING?

Test it out in Live mode...

Let’s do this in LIve Mode. (to be updated...)

1) Create variables ”rgbValue”

Make sure you will click on the checkboxes. This will

allow you to view the values in the Stage Pane.

2) Write your code

See the value in the Stage area:

Blocky Version



Click here to start and

stop.



‘Arduino-C version

ALTERNATIVE LOOP( )



CHALLENGE LIST

To be updated



Section V - WORK WITH MOTORS Prev Next ➢

BASIC MOTOR MOVEMENTS

Blocky Version

Arduino-C Version

Special note: The converted Arduino-C codes directly from MakeBlock is “very poorly” written and hard to read. The

following is a much improved version.

Header and you must instantiate motor objects first:

Initialize the motors. The following must be done before using motors:



The MeEncoderOnBoard DEMANDS that the motor loop functions NEVER BE BLOCKED (they need to always be called).

Thus, although it seems odd to write our own delay but it is required. * See the MakeBlock’s note online regarding this

restriction.

A simple function to do speed conversion 0 to 255 to 0 to 100:

The setup( ) and loop( ) in Arduino:

http://learn.makeblock.com/en/Makeblock-library-for-Arduino/class_me_encoder_on_board.html#a40a21255f01a568dbdbdcbfe9236070c



MOTOR MOVEMENTS WITH ULTRASONIC SENSOR

Blocky Version

Arduino-C Version

speedval( .. ) and setup( ) functions go here.



MOTOR MOVEMENTS BASED ON ROTATION PER MINUTE

Blocky Version

Arduino-C Version

Let’s take a look one section at a time:

1) Insert your header and motors variables, etc.

2) Put in _delay( ... ) function

3) Insert 2 motor interrupt functions as below:



4) Complete the setup( ) function with codes below:

void setup( ) {

a. Need to attach an Interrupt function to the right motor.

b. Need to attach an Interrupt function to the right motor.

c. Start running the motors:



d. Add the following to end the setup( ) function:

5) Complete loop( ) function as below:

MOTOR MOVEMENTS BY THE ENCODER VALUE

Arduino-C Version

It is almost the same as the sample above with RPM, except:

Replace (c) and (d) with the following:



CHALLENGE LIST

To be updated..



Section VI – A BIT MORE ADVANCED PROJECTS Prev Next ➢

BLINK FASTER WHEN IT DETECTS LOUDER SOUND

Blocky Version

Arduino-C Version



SYNC YOUR LEDS WITH SOUND

Blocky Version



Arduino-C Version



PIXEL RGB RING DISCO

Blocky Version

Arduino-C Version



To be updated.



MOVEMENTS WITH ENCODER MEASUREMENT

Some of the following samples require more sophisticated technique, and thus only Arduino-C Version program will be shown

only.

To be updated



Activate the PIXEL-RGB RING based on Gyro reading.



LINE FOLLOWING WITH FEEDACK CONTROL

TO BE UPDATED



GET AROUND A KNOWN SIZE OBSTACLE WITH MATH

TO BE UPDATED



ADVANCED DOT MATRIX DISPLAY – TEXT SCROLLING

Blocky Version

Need the 8x16 Dot Matrix Display module. (not in Ranger Kit).

Arduino-C Version

To be updated.

https://www.robotshop.com/en/makeblock-me-led-matrix-8x16-mbot.html



Section VII - APPENDIX Prev Back to Top ➢

WHAT DO THE COLORS ON THE PORTS MEAN?

Ports are color-coded to identify which type of devices can be connected:

Red

Output – 6-12V DC motor Driver

Stepper Motor Driver

Encoder Motor Driver

yellow

Single-digital port

- Constant 5V DC current

Ultrasonic Sensor

RGB LED???

Limit switch? ?

Blue

Double-digital port


7-Segment Display

PIR Motion Sensor

Shurtter Cable

Line Follower

IR Receiver

Grey

Serial Port of hardware


BT Modle (dual Mode)

WiFi Module

Black

Analog signal port


Light Sensor

Potentiometer

Joystick

4-Button

Sound Sensor

White

I2C 3-Axis Accelerometer and Gyro Sensor

Compass



HOW TO ADD ON ADDITIONAL SENSING IN THE FUTURE?

BUG - THE 12 RGB LEDS ON RANGER

BUG: #12 fails to turn on if you pass a single RGB value. it works fine with R, G, B independently.

If turn on #0, it means all

CREATING YOUR OWN SCRATCH EXTENSION

INSTALL NODE VERSION MANAGER

Excellent reference: https://linuxize.com/post/how-to-install-yarn-on-ubuntu-18-04/

https://medium.com/@hiroyuki.osaki/how-to-develop-your-own-block-for-scratch-3-0-1b5892026421

sudo apt update

#

curl -sL https://deb.nodesource.com/setup_10.x | sudo -E bash -

sudo apt install nodejs

node -–Version # min v 10.16.x

npm –Version # min v 6.9.x

INSTALL NVM (NODE VERSION MANAGER) SCRIPT

curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.34.0/install.sh | bash

https://linuxize.com/post/how-to-install-yarn-on-ubuntu-18-04/

https://medium.com/@hiroyuki.osaki/how-to-develop-your-own-block-for-scratch-3-0-1b5892026421



ls ~/.nvm

# exit and re-open your terminal

nvm –Version # min 0.34.0

INSTALL NODE JS

nvm install node

node –Version #min v12.8.1

nvm install -–lts # LTS (long term support) of nvm

nvm install 8.10.0

INSTALL NEW PACKAGE MANAGER CALLED “YARN”

curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | sudo apt-key add -

echo "deb https://dl.yarnpkg.com/debian/ stable main" | sudo tee \

/etc/apt/sources.list.d/yarn.list

sudo apt update

sudo apt install yarn

ADD A NEW PROJECT

yarn init <scratch1>

# look at the package.json for configuration

# yarn add <new project >

TO UPGRADE PACKAGES (IF NECESSARY)

yarn upgrade

yarn upgrade [package_name]

yarn upgrade [package_name]@[Version_or_tag]

TO INSTALL SCRATCH PACKAGES

git clone https://github.com/LLk/scratch-vm

git clone https://github.com/LLk/scratch-gui

cd scratch-vm && yarn install && yarn link

cd scratch-gui && yarn link scratch-vm && yarn install

src

https://github.com/LLk/scratch-vm

https://github.com/LLk/scratch-gui



│ ├── extensions

│ │ ├── scratch3_ev3

│ │ ├── scratch3_newblocks 【★ ADDED】

│ │ │ └── index.js【★ ADDED File 1】

│ │ ├── 【OTHERS】

│ │ └── scratch3_wedo2

│ ├── extension-support

│ │ ├── argument-type.js

│ │ ├── extension-manager.js 【★★ ADDED File 2】

│ │ └── 【OTHERS】

LOOK INTO THE INDEX.JS AND EXTENSION-MANAGER.JS FILE:

{

name: 'NewBlocks',

extensionId: 'newblocks',

collaborator: 'Me',

iconURL: newBlockImage,

insetIconURL: newBlockButtonImage,

description: (

<FormattedMessage

defaultMessage="New blocks."

description="my block"

id="gui.extension.newblocks.description"

/>

),

featured: true,

disabled: false,

internetConnectionRequired: true,

bluetoothRequired: false,

helpLink: 'https://scratch.mit.edu/wedo'

}



External Reference:

1 - Factory Reset Guide

2 - MakeBlock online master hardware platforms document.

3 - Makeblock Library for Arduino.

4 - Makeblock mBot Ranger Arduino-Coding Reference

5 - Makeblock mBot Input Output Functions

< End of Document>

https://www.robotshop.com/media/files/pdf2/makeblock-factoryresetv1.0.pdf

http://docs.makeblock.com/diy-platform/en/electronic-modules/sensors/me-ultrasonic-sensor.html

http://learn.makeblock.com/en/Makeblock-library-for-Arduino/

https://docs.google.com/document/d/1EpMWJo9pP2J_pstzXA-XHK8t00Z70SCZYwZ_Kl7VLuw/edit

https://docs.google.com/document/d/16uXDUmgN_9jM2sp_KGJtZZfQTpQ2-PzLDtjUFla_FcA/edit

ranger robot · 1 x 3-axis accelerometer and gyro sensor 1 x thermistor sensor speaker: 1 x buzzer...

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