International Robot Olympiad 2018 Gold winning Project! Team RoboTigers, From Bangladesh.
There is two leading Olympiad contest on Robotics going on around the world. One is International Robot Olympiad, which known as (IROC) and other is World Robot Olympiad, also known as (WRO). Both of the Olympiad organizers arrange global robotics competition for young kids. They arrange this Robot Olympiad every year in a different member country.
International Robot Olympiad:
Bangladesh participated for the very first time in IROC Robot Olympiad 2018. They did an extraordinary result. They got the gold medal in Creative Catagory.
Here is the one-minute video documentation of their Project:
This is the video Documentation of Serenity Bot By Bangladeshi Team RoboTigers which is the Gold winning Robot in International Robot Olympiad 2018, Philippine.
This robot was built for water quality measurement in the sea. The robot is 100% homemade robot with opensource Arduino platform.
The robot has GSM module and GPS module on it so that it can send data and also it's real-time location. The robot can measure the PH level and turbidity of the water. As the theme of International Robot Olympiad 2018 was "Save the Seas".
Basic Overview of The Arduino Based Homemade Robotics project "Homey The Robot".
Now-a-days robots are playing a very important role in the industry
level and also out of the industry. Dependency on robots are increasing
for their fast and reliable working speed and accuracy. Considering that
demand of the robot increasing every day.
Homey Robot
This research was conducted
focusing on the necessity of robots in our daily life. This video
documentation shows the system where a robot can be controlled in
different ways like voice, wireless and full automatic mode. The
prototype was built and tested. The robot prototype will be able to
receive voice command from short distance. In case of long distance
communication user will be able to connect through internet using
Internet of Things (IoT).
The used hardware's are:
Arduino Mega 2560
Arduino Nano
Voice Reorganization Module (V-3)
HC-05 Bluetooth Serial Communication Module
LM35 Temperature Sensor
LCD DISPLAY (16 X 2)
Ultrasonic Sensor
Servo motor
Power Supply 12v lipo
Jumper wire
L293D Motor Driver
Plastic board for body structure etc.
System development
The Homey robot was built based on Arduino Open Source
Platform. The robot connects
itself with android phone through HC-05 Bluetooth Serial Communication Module. The user can
give command using android application. The system can
send command and also receive data from the robot. User can observe sensor
value from the robot.
Another way of giving instruction is voice command. Voice Recognition
module (VR-3) was used to receive voice command along with Arduino Nano.
Arduino Nano receive voice command and process it. Then it generates specific
instruction for each voice command and send it to Arduino mega through TX RX
serial communication pins. Then Arduino mega perform according to the
command. Voice training sets are stored in Arduino Nano. Therefor when it
receives voice command it process and compare the voice with training data-set.
Voice Input and Output
Voice commands are stored in two
different groups and each group have their unique voice commands. The voice recognition
module takes input command as group. Each group can hold 6 commands. Maximum 255
commands can be trained with the voice recognition module.
The commands for both groups are
given below:
Table 1 Voice Input and Output in Group 1
Voice Command (Input)
Arduino Command
Work (Output)
Stop
1
Stop
Auto
2
Auto
Forward
3
Move Forward
Piche
4
Move Backward
Left
5
Move Left
Right
6
Move Right
Table 2 Voice Input and Output in Group 2
Voice Command (Input)
Arduino Command
Work (Output)
Blink
7
Blink
Light on
8
Light on
Lightning
9
Light off
Temperature
T
Temperature
Handshake
P
Handshake
Night mode
N
Night mode
IoT Input and Output
A web application and an
android application was developed to control the robot remotely through
internet. The android application interface is given below:
Android
application
The robot can be
controlled by android application.
While user press any button on the application, corresponding commands are sent
via internet to the robot. The commands are in the form of ASCII character. The
Arduino on the robot then compare the received command with its pre-defined
commands and control the servo motors, gear motors, sensors and other
peripherals to move forward, backward, left, right, stop, move hands, fingers
or measuring sensor values.
The temperature button
send command to Arduino to check temperature sensor value and the value is sent
back to the user. Temperature value also displayed on the liquid crystal
display attached on the front side of the robot. If the user presses the auto
button or gets disconnected from internet the robot can move anonymously.
During the anonymous mode sonar sensor helps it to avoid obstacle.
The sonar sensor HC-05 helps to measure distance of the
obstacle in front of the robot.The
sonar sensor generates ultrasonic sound using trigger. Then it reads the echo
Pin, returns the sound wave travel time in microseconds. The distance is
calculated using the following rule:
Duration = Distance / Speed
➔Distance = duration*0.034 / 2
The speed of sound in air is 0.034 and it travel twice to
return, so divided by 2.
The Arduino Mega micro controller get
the distance value and check the condition when it should stop and search for
another long-distance path.
Motor driver l329d [8] was used to
control motors speed. There are two gear motor attached in the lags of the
robot. The motors are connected with motor driver so that speed can be
controlled by the micro controller. There are four digital input for two motors
in motor driver. The diagram of motor driver makes it clear:
Motor Driver L329D
The robot was built as the shape of human. Different body
parts like hand, head, and fingers are controlled by servo motors. It also can
handshake with human using its robotic arms and pick objects. As the structure
is not that much strong, therefore at present it only can pick lightweight
objects.
Before doing the code to find all odd number using c programming, we have to know the logic behind the code. We have discussed the logical part. Now it's time to write some code. But I suggest, please go back to the logical part of the code first. The logical thinking to find odd and even number is the same.
Before doing code to find all even number using c programming, we have to know the logic behind the code. We have discuss about the logical part. Now it's time to write some code. But I suggest, please go back to the logical part of the code first.
To print all even number from a range in c programming, we have to check all number between given range. To check if the number is odd or even number, we can use this following logic:
The rule is, if any number is fully divided by 2, then this number is even. Else the number is odd.
Even and Odd
For example
If we want to check whether the number 5 odd or even, we need to simply divide the number by 2.
If there is any reminder left, or if there is any value of 5 mod 2 left, that means 5 is not divisible by 2. So 5 is odd number.
We have discuss about the logic behind this code to solve our problem. If you missed the basic logical part, please go back and understand the logic and then try to code yourself.
