Processing tutorial: data variables

Grammar is introduced:
int, float, boolean, true, false, =(assign), width, height

 

Processing data variables

variable
Int x;
Float y;
Boolean b;
X = 50;
Y = 12.6;
B = true;
Can also be assignment on one line:
Int x = 50;
Float y = 12.6;
Boolean b = true;
A line can declare multiple variables:
Float x, y, z;
X = 3.9;
Y = 10.01;
Z = 123.123;
Processing language variables
Processing language has a built-in variables used to store data.
The width and height of the window width, height.If not set the size (), then the width and height are set to 100.

News! Sulong R2 Robot Smart Car Chassis Kit On Sale

Which experiments can be done on R2 robots and which expects does the knowledge got from the experiments can be used?

News! Sulong R2 Robot Smart Car Chassis Kit On Sale

1. LED Light Water Experiment (The basic experiment of 51 single-chip microcomputer and it can be used in the LED flashing lights or neon lights, etc.)
2. Key Identification Experiment (Single-chip Microcontroller Programming and must master.)
3. The Interruption (Single-chip Microcontroller Programming and must master.)
4. 99 Counter (Can be used in the design of frequency meter and counter, etc.)
5. Serial Communication (The data interaction of two machines, can be used in data transfer.)
6. LCD 1602 Characters Display (Human and machine interface, can be used to display the necessary information while designing products.)
7. AT24C02 Experiment (Learning I2C communication protocol -- data transmission way widely used in all kinds of products. Learning how to save the important data, avoiding the data lost when the power is off.)
8. Ultrasonic Distance Measurement (A technology of ultrasonic non-contact measuring distance, this technology can be applied in the design of anti-theft products, line product counting, high limited detection device, the flow statistics, robot obstacle avoidance, etc.)
9. The Wireless Remote Control Experiment (industrial equipment wireless remote control and are widely used in anti-theft products.)
10. Bluetooth Data Transmission (wireless data transmission, because it has such characteristics as high universal property performance, simple and easy interface and high reliability, etc. The technology is widely applied in such areas as PDA, wireless data collection, GPS, etc. We make experiment of computer wireless remote-controlled robot (we provide PC control software), customers can also make experiment of mobile phone remote control robot by Bluetooth. (Mobile phone remote control software must be written by yourself )
11. The Robot Obstacle Avoidance Experiment (using the infrared probe on R2 to detect the obstacles ahead, it will avoid immediately while the obstacles are found, knowing how to automatically turn back in the corner place till avoiding obstacles. Infrared probe is widely used in industrial automation because it is little affected by the ambient light, fast and efficient. We can also apply this technique in statistics, anti-theft device, shop installed with greeting device or guide system.)
12. The experiment of Robot Find Black Line (Robot R2 in the experiment will walk along the black line arrangement on the ground, and it is very interesting. In some factories it’s used for unmanned delivery car, the unmanned delivery car transport goods along the specified rail.)

News! Sulong R2 Robot Smart Car Chassis Kit On Sale

The features of R2 robot chassis kit:

1. Use the patch 51 series SCM STC89C52RC and fully compatible with AT89C52 (There is no difference on the programming of AT and STC).
2. Use only one USB cable to connect to a computer (power supply and download program), apply to all desktops and laptops.
3. Can use Bluetooth wireless download programs, non-directional and accessibility (enclose with detailed video tutorial).
4. USB Virtual Serial Port, now most laptops are no serial port, R2 can make serial communication experiment through USB, learning serial port communication.
5. Use the patch package 51 single-chip microcomputer and live out the lock. Avoid any poor contact, and more convenient than DIP. This is a rare bright spot. Beginners should get ride of the traditional ideas, actually there are no difference between the patch and DIP).
6. DS1302 Real-time Clock, it’s a permanent calendar with calculation ability of Year, Month, Week, Day, Hour, Minute, Second.
7. AT24C02: learning I2C bus protocol, learning the external EEPROM reading and writing operations, save data and not lost when power supply drop.
8. Adopting double MCU design, solving the single MCU resource shortage problem.
9. The Interface Design. All IO mouth raises, eight sensor interfaces (extensions when not enough), two speed measuring sensor interfaces, the ultrasonic module interfaces, wireless module interfaces, Bluetooth interface, LCD1602 and LCD12864 interface.
10. Adopting gear motor with small power and large torque (150 revolutions per cent), power saving, low noise.
11. Using 2 lithium batteries with 3.6 V 900mah, with small size.
12. Providing circuit principle diagram and all of the source programs (the program has detailed annotations and video analysis).

News! Sulong R2 Robot Smart Car Chassis Kit On Sale

Arduino wireless bluetooth module shopping guide

Arduino Ultra-Long-Range Bluetooth Module


This is a ultra-long-range Bluetooth module designed for ultra-long-range wireless data transmission and build using CSR's BlueCore4-Ext chip follow V2.1 + EDR Bluetooth specification. The module supports UART, USB, SPI, PCM, SPDIF interface, support for the SPP Bluetooth serial protocol, with advantages of low cost, small size, low power consumption, the transceiver sensitivity high transmission distance, just with a little external components will be able to achieve its powerful features.
Max distance up to 200 meters with IPEX interface 24DB antenna. Use 5DB antenna about 50-70 meters.

Arduino Ultra-Long-Range Bluetooth Module Feature:

Setting by AT commend
Built-in RF amplifier circuit with IPEX interface. Effective transmission
Max distance up to 200 meters (24DB)
Bluetooth V2.1 + EDR
Built-in 8Mbit Flash
Support UART, USB, SPI, PCM interface
Integrated support for hardware and software support master-slave control
master-slave module
Support for connection 7 from equipment
REACH, ROHS certification


BC05B Bluetooth stereo receiver module Audio Bluetooth Speaker Module

BC05B Bluetooth stereo receiver module base on CSR BlueCore5 MM design. With high integration, small size and other features, just with a few external components to achieve its powerful features.
Establish a connecte with the A2DP, AVRCP transmission and remote control protocol any Bluetooth source device (such as: Bluetooth-enabled mobile phones, Bluetooth stereo audio transmitter modules, Bluetooth adapter, etc.) to the wireless receiver to achieve high-quality stereo audio stream and audio player with remote control.
BC05B stereo Audio Bluetooth Speaker module to provide users with a remote control button interface, work status indication interface, stereo audio output jack, microphone input interface.


BLK-MD-SPK-B Bluetooth module Audio Bluetooth Speaker Module


BLK-MD-SPK-B Bluetooth module base on OVC3860, its designed for product design of Bluetooth speakers. Has the characteristics of high integration, small size, just with a few
external components will be able to achieve its powerful features. With A2DP, AVRCP transmission and remote control protocol any Bluetooth audio device (such as: Bluetooth-
enabled mobile phone, computer Bluetooth adapter, etc.) to establish a connection, to achieve high-quality stereo audio stream wireless receiver, and audio player remote
control. BLK-MD-SPK-B Bluetooth stereo receiver module to the user interface, remote control buttons work the status indication interface, stereo audio output interface.


EVB Board BC05B Audio Speaker Bluetooth Module

This Audio Bluetoot Speaker Module is base on BC05B which establish a connecte with the A2DP, AVRCP transmission and remote control protocol any Bluetooth source device (such
as: Bluetooth-enabled mobile phones, Bluetooth stereo audio transmitter modules, Bluetooth adapter, etc.) to the wireless receiver to achieve high-quality stereo audio stream
and audio player with remote control.
USB-powered
Turn on the power switch
Hold the PWR key about 5 seconds, you can see the blue lights flashing fast, the module has entered the search state
Search using a mobile phone or computer Bluetooth module pairing
Module size: 40 * 60mm
Paired name: BT-Speaker ; Pair password : 0000

Arduino Minimum pass-through Bluetooth Modem module

The Bluetooth Modem is the latest Bluetooth wireless serial cable! This version of the popular Bluetooth uses the HC-05/HC-06 module. These modems work as a serial (RX/TX) pipe. Any serial stream from 9600 to 115200bps can be passed seamlessly from your computer to your target.
The remote unit can be powered from 3.3V up to 6V for easy battery attachment. All signal pins on the remote unit are 3V-6V tolerant. No level shifting is required. Do not attach this device directly to a serial port. You will need an RS232 to TTL converter circuit or Arduio XBee USB Adapter if you need to attach this to a computer. You can either solder a 6-pin header or individual wires.
Unit comes without a connector. Please see related male and female pins below.
And now, we provide HC-05/06, HC-05 could be setting to Master or Slave by user. HC-06 just be Master or Slave, that could be customized. This module default is HC-06 with Slave mode.
Note:Be paired must Master devices and Slave devices each other.Master and Master devices, Slave and Slave devices can't paired each other. The HC-06(just suppy slave mode and more easy) Slave mode could paired with PDA, PC etc.


Arduino HC-06 Serial port bluetooth module HC-05 Serial port bluetooth module

Serial port bluetooth, Drop-in replacement for wired serial connections, transparent usage. You can use it simply for a serial port replacement to establish connection between MCU and GPS, PC to your embedded project and etc.
And now, we provide HC-05 and HC-06. HC-05 could be setting to Master or Slave by user. HC-06 has be designed Master or Slave when the factory, user couldn't change the role.

Note:HC-06 need you choose Master or Slave(default), HC-05 does not matter.

Arduino HC-06 Serial port bluetooth module HC-05 Serial port bluetooth module Specifications:

Bluetooth protocal: Bluetooth Specification v2.0+EDR
Frequency: 2.4GHz ISM band
Modulation: GFSK(Gaussian Frequency Shift Keying)
Emission power: ≤4dBm, Class 2
Sensitivity: ≤-84dBm at 0.1% BER
Speed: Asynchronous: 2.1Mbps(Max) / 160 kbps, Synchronous: 1Mbps/1Mbps
Security: Authentication and encryption
Profiles: Bluetooth serial port
Power supply: +3.3VDC 50mA
Working temperature: -20 ~ +75 Centigrade
Dimension: 26.9mm x 13mm x 2.2 mm


Wireless Bluetooth Bee HC-06 for arduino

Bluetooth Bee is an easy to use Bluetooth SPP module compatible with existing Xbee sockets, designed for transparent wireless serial connection setup.
Bluetooth Bee is designed for transparent wireless serial connection setup. This is a fully qualified Bluetooth V2.0+EDR (Enhanced Data Rate) 3Mbps modulation with complete 2.4GHz radio transceiver. It uses CSR Bluecore4-external single chip Bluetooth system with CMOS technology and with AFH (Adaptive Frequency Hopping).
It can be configured to Master, Slave or Loopback three different modes(HC-06 just be Slave), and it will connect to or be connected by other devices that support SPP protocol per configuration, and it is a suitable substitute for most applications.
We recommend assemble with XBee Shield with logic level converter.


Stackable Wireless Bluetooth Shield module for Arduino Freaduino Support Master & Slave Mode


Bluetooth Shield a serial port Bluetooth module (Master/Slave) breakout board. You can choose ARDUINO's Digital PIN D0->D7 as Software UART to communicate with Bluetooth Shield(and D0,D1 also is Hardware UART).
Serial port Bluetooth module is fully qualified Bluetooth V2.0+EDR(Enhanced Data Rate) 3Mbps Modulation with complete 2.4GHz radio transceiver and baseband. It uses CSR Bluecore 04-External single chip Bluetooth system with CMOS technology and with AFH(Adaptive Frequency Hopping Feature). Hope it will simplify your overall design/development cycle.

And now, we provide HC-05, which could be setting to Master or Slave by user.
Note:Only between master device and slave device can be paired with each other. Between Master and Master devices or Slave and Slave devices can't be paired each other. The Slave mode could be paired with PDA, PC etc.


Brand New Wireless Bluetooth XBee Shield with Logic Level Converter for Arduino

Bluetooth XBee Shield with Logic Level Converter is an enhanced serial port XBee module breakout board.It can directly plug in with Arduino, and use D0-D3 of the basic board to connect with the XBee module.Its SPI and UART bus is convert the logic level 5V to 3.3V,and it's stackable, you can connect the 3.3V IO module or shield to this shield directly. The "Logic Level Converter" show in the below allowed your arduino board connect to different IO logic level module safety.

Bluetooth XBee Shield with Logic Level Converter Further:

With Logic Level Converter (3.3V to 5V or 1.8V to 5V or 1.8V to 3.3V)
With CC1101 module connecter
Provide maximal 800mA under 3.3V
4 indicator LED ( RSSI, ASS, Din, Dout) for XBee
Switchable of communication with FTDI-USB /Base board
Full 2.54mm break out for XBee
With wireless program hardware interfaces
Reset button for base board
Stackable interfaces

Tohobby offer servo bracket for your need

Multi-Purpose servo bracket black anodized aluminum

Multi-Purpose servo bracket Specification:

1. Material: 2mm hard aluminum plate
2. Surface treatment: sandblasting oxidation
3. Size: 58X37X25.5mm
4. Weight: 30g
5. Color: black and white, random shipments

Multi-Purpose servo bracket

This Multi-Purpose servo bracket compatible with TR Series Servo (TR205, TR213, TR223), Korea HS322, HS422, TowerPro MG995, MG996, SG5010 servos, Hitec, Parallax, Futaba, Fraser brand (size 40 × 20 × 36mm) standard servos.

The stent has mold, CNC machine tools, and can be mass-produced, the hole error of plus or minus 0.1mm, sheet metal angle error of 5 degrees, sheet metal bends error of 0.5 mm, the material for 60 series of hard aluminum plate 2mm thick high hardness, light weight, the craft precision is very high.

Short 'U' servo motor bracket standard servo motor bracket black anodized aluminum

Short 'U' servo motor bracket standard servo motor bracket Specification:

1. Material: 2mm hard aluminum plate
2. Surface treatment: sandblasting oxidation
3. Size: 56X25X44.5mm
4. Weight: 16g
5. Color: black and white, random shipments

This 'C' servo bracket compatible with TR Series Servo (TR205, TR213, TR223), Korea HS322, HS422, TowerPro MG995, MG996, SG5010 servos, Hitec, Parallax, Futaba, Fraser brand (size 40 × 20 × 36mm) standard servos.

The stent has mold, CNC machine tools, and can be mass-produced, the hole error of plus or minus 0.1mm, sheet metal angle error of 5 degrees, sheet metal bends error of 0.5 mm, the material for 60 series of hard aluminum plate 2mm thick high hardness, light weight, the craft precision is very high.

Black Long "U" servo motor bracket anodized aluminum

Long "U" servo motor bracket black anodized aluminum Specification:

1. Material: 2mm hard aluminum plate
2. Surface treatment: sandblasting oxidation
3. Size: 56X25X64.5mm
4. Weight: 6g
5. Color: black and white, random shipments

This Long "C" servo bracket compatible with TR Series Servo (TR205, TR213, TR223), Korea HS322, HS422, TowerPro MG995, MG996, SG5010 servos, Hitec, Parallax, Futaba, Fraser brand (size 40 × 20 × 36mm so) standard servos.

The stent has mold, CNC machine tools, and can be mass-produced, the hole error of plus or minus 0.1mm, sheet metal angle error of 5 degrees, sheet metal bends error of 0.5 mm, the material for 60 series of hard aluminum plate 2mm thick high hardness, light weight, the craft precision is very high.

Black anodized aluminum L servos connector bracket

L servos connector bracket Specification:

1. Material: 2mm hard aluminum plate
2. Surface treatment: sandblasting oxidation
3. Size: 28.5X25X34mm
4. Weight: 6g
5. Color: black and white, random shipments

This L servos connector bracket compatible with TR Series Servo (TR205, TR213, TR223), Korea HS322, HS422, TowerPro MG995, MG996, SG5010 servos, Hitec, Parallax, Futaba, Fraser brand (size 40 × 20 × 36mm so) standard servos.

The stent has mold, CNC machine tools, and can be mass-produced, the hole error of plus or minus 0.1mm, sheet metal angle error of 5 degrees, sheet metal bends error of 0.5 mm, the material for 60 series of hard aluminum plate 2mm thick high hardness, light weight, the craft precision is very high.

Tohobby new arrive robot parts

DHT11 Digital Humiture Sensor on sale

DHT11 Digital Humiture Sensor Features:

DHT series numeric humiture sensor

Humidity measuring range: 20%~90%RH(0-50Ω Temperature compensation)

Temperature measuring range: 0~+50Ω

Humidity measurement accuracy: ± 5.0%RH

Temperature measurement accuracy: ± 2.0Ω

Response time: <5s;

Low power consumption

Dimension: 12X15.5X5.5mm

Bluetooth Wireless Transceiver Module Master UART Board (UART Interface Host Mode)

Bluetooth Wireless Transceiver Module Master UART Board Features:

The Bluetooth Master UART Board provides bluetooth solution for adding wireless capability to your development system. It is suit for applications where wireless bluetooth data transmission is needed. The Bluetooth Master UART Board works in master/host mode.

Designed to use 3.3V power supply only. Be careful to use voltage translators (series connects a 1K resistor) on communication lines when connecting it to 5V systems.

3-Pin Arduino Sound Sensor Module

3-Pin Sound Sensor Module Features:

Quantity:1

Color:Blue

Material: PCB + copper + plastic

Features Working voltage: 3.3~5V

Application Great for DIY project

Manduino UNO based on Arduino UNO Rev3

Manduino UNO based on Arduino UNO Rev3 Overview:

Manduino UNO is designed based on the Arduino Uno Rev3,and completely compatible with the Arduino Uno

Rev3.So you can use Manduino UNO as Arduino UNO,and some visible improvement on hardware make Manduino

UNO more flexible and easier to use.

For example:

(1) Operating voltage of 3.3 V / 5 V optional allow you to connect some 3.3v modules

(such as XBee or sd card ...)to Manduino directly.

(2) SPI, COM and IIC bus breakout make bus connect easier.

(3) The Arduino UNO can operate on an external supply of 6 to 20 volts, and Manduino Uno wide range

input voltage from 7~23V DC

What can tohobby.com do for your

Tohobby.com global supply robot parts, robot kits, arduino parts, arduino kit. Free shipping to buy robot parts, robot kits, arduino kit are no minimum order requirements.

Arduino Robot Kit

Development Board
The development board is used for circuit board of microcontroller embedded system development, including CPU, memory, input devices, output devices, the data path / bus and external resources interface and a series of hardware components.

Robot Kit

Robot Kit
Here you will find a wide selection of Robot Kit and development platforms to suit everyone's taste. Building a robot from a kit is the perfect way to learn about robotic technology. In fact, when you build and assemble a robot kit, you learn about physics, mechanics, electronics and artificial intelligence. Robot kit are a lot of fun and make excellent educational gifts. We also offer professional robot development platforms which offer certain features that may interest you. For more advanced users wanting to create their own robots from scratch, please visit our Robot Part and Tools sections.

Robot Chassis

Robot Parts
Robot part are the basic units in designing and constructing a complete robot. With these specialized robot part, you will be able to build or modify a robot quickly; you will make it more professional, intelligent and adaptable to its environment. Certainly, the steady advance of robot part will change the way we build robots. Choose the parts you need or select a robot kit which includes everything you need, and get started building your own robot today!

Robot Parts

Arduino Mini Board Arduino Nano 3.0

Arduino Mini Board Arduino Nano 3.0 description:

Arduino Nano is a base with open source of super small Simple I/o platform, and the USB version before Arduino Diecimila compare, Arduino Nano in the volume occupied very big advantage, Arduino that can be used to develop the need to be independent operation, and has the interaction effect of electronic products; Can also be used to develop and computer connected with Flash, Processing, Max/Msp, PD, VVVV software such as the interaction of working with complete works.

Arduino Mini Board Arduino Nano 3.0 with ATMEGA328 technical parameters:

1.12 Digital input / output port D2 to D13.
2.8 analog input ports A0 ~ A7.
3.1 pairs of TTL level serial transceiver port RX / TX.
4.6 PWM port, D3, D5, D6, D9, D10, D11.
5 Using Atmel Atmega328P-AU MCU.
6 USB download and power.
7. Support for external 5V ~ 12V DC power supply.
8. 9V battery power supply.
9. Support ISP download

ARDUINO MINI BOARD ARDUINO NANO 3.0 PACKING INCLUDE:

1x Arduino Mini Board Arduino Nano 3.0 board
1x Mini USB cable