Uctronics Smart Bluetooth Robot Car User manual

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Table of Contents
1. Introduction......................................................................................................................................................4
1.1 Packing list.............................................................................................................................................5
2. Parts Introduction...........................................................................................................................................6
2.1 Uno R3 Board for Arduino ...............................................................................................................6
2.1.1 Specifications........................................................................................................................... 6
2.2 HC-SR04 Ultrasonic Sensor Module with Bracket / Holder..................................................7
2.2.1 Working Principle................................................................................................................... 7
2.2.2 Specification............................................................................................................................. 8
2.2.3 Wiring diagram:...................................................................................................................... 9
2.3 L293D Motor Drive Expansion Board for Arduino...................................................................9
2.3.1 Specification............................................................................................................................. 9
2.4 SG90 9g micro small servo motor.............................................................................................. 10
2.4.1 Specification...........................................................................................................................10
2.5 2WD Driver Motor Robot Smart Car Chassis Kits ................................................................. 11
2.5.1 Specification...........................................................................................................................12
2.6 HC-05 Bluetooth Serial transmission Wireless Module ...................................................... 12
2.6.1 Specification...........................................................................................................................12
2.6.2 Pin definition .........................................................................................................................13
2.6.3 Application: ............................................................................................................................13
2.7 Infrared IR Wireless Remote Control Sensor Module Kits.................................................. 14
2.7.1 Specification...........................................................................................................................14
2.7.2 Dimension ..............................................................................................................................15
3. Pin Definition................................................................................................................................................. 16
4. Wiring .............................................................................................................................................................. 17
5. Installation...................................................................................................................................................... 18
5.1 Installation of the Car ..................................................................................................................... 18
5.2 Wire Connection............................................................................................................................... 27
6. Key Value for Remote Controller............................................................................................................ 31

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7. Start Programing.......................................................................................................................................... 32
7.1 Install Arduino IDE ........................................................................................................................... 32
7.2 Add Libraries...................................................................................................................................... 36
8. Bluetooth App for Android....................................................................................................................... 39
Step 1: Download and Install App..................................................................................................... 39
Step 2: Open UCTRONICS_Car_Controller software, the default is Bluetooth Mode ...... 40
Step 3: Click the top right and choose ‘Connected device’...................................................... 40
Step 4: Select ‘CAR CONTROL MODE’............................................................................................. 41
Step 5: Search Bluetooth Device........................................................................................................ 41
Step 6: Enter control menu.................................................................................................................. 42

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1. Introduction
The UCTRONICS Smart Bluetooth Robot Car Kit is a flexible vehicular kit particularly
designed for education, competition and entertainment.
The kit has an intelligence built in so that it guides itself whenever an obstacle comes ahead
of it. An Arduino development is used to achieve the desired operation. With the help of a
small servo motor, it scans the area left and right in order to find the best way to turn. An
ultrasonic sensor unit is used to detect any obstacle ahead of it that sends a command to the
Arduino Board. Depending on the input signal received, the Arduino microcontroller
redirects the robot to move in an alternate direction by appropriately actuating the motors
interfaced to it through a motor driver IC.
When all the necessary components are getting together, a robot car comes up!
A robot is a machine that can perform some task automatically or with guidance. Robotics is
generally a combination of computational intelligence and physical machines (motors). Due
to their high level of performance and reliability, the robot gets the splendid popularity in
our daily life.
Come up; let’s go into a Robot World!

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1.1 Packing list
1pcs UNO R3 Board for Arduino
1pcs HC-SR04 Ultrasonic Sensor Module
1pcs Holder for HC-SR04
1pcs L293D Motor Drive Expansion Board
1pcs 9g micro servo motor
1pcs Infrared IR Wireless Remote Control Sensor Module Kits
1pcs HC-05 Bluetooth Serial transmission Wireless Module
1pcs cable
1set Car Chassis Kits:
2pcs 65mm tire Wheels
2pcs Geared Motors (1:48)
1pcs Universal Wheel
1pcs Battery Container
1pcs Car Chassis
Screws+ Nuts

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2. Parts Introduction
2.1 Uno R3 Board for Arduino
This is the new Uno R3 board for Arduino. In addition to all the features of the previous
board, the Uno now uses an ATmega 16U2 instead of the 8U2 found on the Uno (or the FTDI
found on previous generations). This allows for faster transfer rates and more memory. No
drivers needed for Linux or Mac (.inf file for Windows is needed and included in the Arduino
IDE), and the ability to have the Uno show up as a keyboard, mouse, joystick, etc.
The Uno R3 also adds SDA and SCL pins next to the AREF. In addition, there are two new
pins placed near the RESET pin. One is the IOREF that allow the shields to adapt to the
voltage provided from the board. The other is a not connected and is reserved for future
purposes. The Uno R3 works with all existing shields but can adapt to new shields which use
these additional pins.
Note: The Uno R3 requires the Arduino 1.0 drivers folder in order to install properly on some
computers. We have tested and confirmed that the R3 can be programmed in older versions
of the IDE. However, the first time using the R3 on a new computer, you will need to have
Arduino 1.0 installed on that machine. If you are interested in reading more about the
changes to the IDE, check out the official Arduino 1.0 Release notes!
2.1.1 Specifications
Microcontroller: ATmega328
Operating Voltage: 5V

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Input Voltage (recommended): 7V-12V
Input Voltage (limits): 6V-20V
Digital I/O Pins: 14 (of which 6 provide PWM output)
Analog Input Pins: 6
DC Current per I/O Pin: 40 mA
DC Current for 3.3V Pin: 50 mA
Flash Memory: 32 KB (ATmega328) of which 0.5 KB used by bootloader
SRAM: 2 KB (ATmega328)
EEPROM: 1 KB (ATmega328)
Clock Speed: 16 MHz
2.2 HC-SR04 Ultrasonic Sensor Module with Bracket / Holder
The HC-SR04 ultrasonic sensor module for Arduino is used for obstacle detection. Ultrasonic
sensor transmits the ultrasonic waves from its sensor head and again receives the ultrasonic
waves reflected from an object.
Ultrasonic sensor general diagram
2.2.1 Working Principle

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The ultrasonic sensor emits the short and high frequency signal. These propagate in the air
at the velocity of sound. If they hit any object, then they reflect back echo signal to the
sensor. The ultrasonic sensor consists of a multi vibrator, fixed to the base. The multi vibrator
is combination of a resonator and vibrator. The resonator delivers ultrasonic wave generated
by the vibration. The ultrasonic sensor actually consists of two parts; the emitter which
produces a 40 kHz sound wave and the detector detects 40 kHz sound wave and sends
electrical signal back to the microcontroller.
Ultrasonic working principle
The ultrasonic sensor enables the robot to virtually see and recognize object, avoid obstacles,
measure distance. The operating range of ultrasonic sensor is 2 cm to 450 cm.
2.2.2 Specification
Working Voltage: 5V DC
Static current: < 2mA
Output signal: Electric frequency signal
Output Voltage: 0V-5V
Sensor angle: <= 15°
Detection distance: 2-450cm
High precision: Up to 0.3cm
Input trigger signal: 10us TTL impulse
Echo signal: output TTL PWL signal
Mode of connection: VCC, trig (T), echo, GND
Using method:
(1) Supply module with 5V
(2) Output will be 5V while obstacle in range, otherwise it will be 0V
Item size: 44x20x15mm

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2.2.3 Wiring diagram:
HC-SR04 Ultrasonic Sensor Module
Arduino
VCC
5V
Trig
A2
Echo
A3
GND
GND
2.3 L293D Motor Drive Expansion Board for Arduino
This is a commonly used DC motor drive module, using L293D chip with small current DC
motor driver. The pins are made compatible with Arduino which is easy to use.
2.3.1 Specification
2 connections for 5V servos connected to the Arduino's high-resolution dedicated timer

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Up to 4 bi-directional DC motors with 4 PWM speed regulation
Up to 2 stepper motor control, single / double step control, staggered or microstepping
and rotation angle control
4 H-Bridges: L293D chipset provides 0.6A per bridge (1.2A peak) with thermal
shutdown protection, 4.5V to 36V
Pull down resistors to keep motors in the state of rest during power-up
All module interfaces have been modified with XH2.54 ports as to make it much easier
and convenient to assemble the car.
With Arduino reset button
Voltage
DC 3V
DC 5V
DC 6V
Current
100MA
100MA
120MA
Reduction rate
48:1
RPM (with tire)
100
190
240
Tire Diameter
66mm
Car Speed (M/minute)
20
39
48
Motor Weight (g)
50
Motor Size (mm)
70x22x18mm
Noise
<65dB
2.4 SG90 9g micro small servo motor
SG90 9g micro small servo motor is the main source of controlling action of the
remote-control model. The module is widely applied in the field of fixed wing, helicopter,
gliding, small robot, manipulator model.
2.4.1 Specification
Size: 23x12.2x29 mm