2R Hardware & Electronics: December 2012

Friday, December 21, 2012

Long Range RFID demo video

This Video from YouTube about RFID.
We present Long Range RFID reader and active tag, with reading distance up to 15 meters, and re-transmited via WIFI to notebook.

-----------

The Arduino Micro is a microcontroller board based on the ATmega32u4, developed in conjunction with Adafruit. It has 20 digital input/output pins (of which 7 can be used as PWM outputs and 12 as analog inputs), a 16 MHzcrystal oscillator, a micro USB connection, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a micro USB cable to get started. It has a form factor that enables it to be easily placed on a breadboard.

The Micro is similar to the Arduino Leonardo in that the ATmega32u4 has built-in USB communication, eliminating the need for a secondary processor. This allows the Micro to appear to a connected computer as a mouse and keyboard, in addition to a virtual (CDC) serial / COM port.

Summary

Microcontroller	ATmega32u4
Operating Voltage	5V
Input Voltage (recommended)	7-12V
Input Voltage (limits)	6-20V
Digital I/O Pins	20
PWM Channels	7
Analog Input Channels	12
DC Current per I/O Pin	40 mA
DC Current for 3.3V Pin	50 mA
Flash Memory	32 KB (ATmega32u4) of which 4 KB used by bootloader
SRAM	2.5 KB (ATmega32u4)
EEPROM	1 KB (ATmega32u4)
Clock Speed	16 MHz

Arduino Esplora

The Arduino Esplora is a microcontroller board derived from the Arduino Leonardo. The Esplora differs from all preceding boards in that it provides a number of built-in, ready-to-use setof onboard sensors for interaction.

The Esplora has onboard sound and light output interfaces. It alos has the potential to expand its capabilities with two Tinkerkit input and output connectors, and a socket for a color TFT LCD screen.

Like the Leonardo board, the Esplora uses an Atmega32U4 AVR microcontroller with 16 MHz crystal oscillator and a micro USB connection capable of acting as a USB client device, like a mouse or a keyboard.

In the upper left corner of the board there is a reset pushbutton, that you can use to restart the board. There are four status LEDS :

ON [green] indicates whether the board is receiving power supply
L [yellow] connected directly to the microcontroller, accessible through pin 13
RX and TX [yellow] indicates the data being transmitted or received over the USB communication

The board contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable to get started.

The Esplora has built-in USB communication; it can appear to a connected computer as a mouse or keyboard, in addition to a virtual (CDC) serial / COM port.

Summary

Microcontroller	ATmega32u4
Operating Voltage	5V
Flash Memory	32 KB of which 4 KB used by bootloader
SRAM	2.5 KB
EEPROM	1 KB
Clock Speed	16 MHz

LilyPad Arduino USB

The LilyPad Arduino USB is a microcontroller board based on the ATmega32u4. It has 9 digital input/output pins (of which 4 can be used as PWM outputs and 4 as analog inputs), an 8 MHz resonator, a micro USB connection, a JST connector for a 3.7V LiPo battery, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a battery to get started.

The LilyPad Arduino USB differs from previous LilyPad boards in that the ATmega32u4 has built-in USB communication, eliminating the need for a separate USB-to-serial adapter. This allows the LilyPad Arduino USB to appear to a connected computer as a mouse and keyboard, in addition to a virtual (CDC) serial / COM port.

Summary

Microcontroller	ATmega32u4
Operating Voltage	3.3V
Input Voltage	3.8V to 5V via USB / Lipo battery / external supply
Digital I/O Pins	9
PWM Channels	4
Analog Input Channels	4
DC Current per I/O Pin	40 mA
Flash Memory	32 KB (ATmega32u4) of which 4 KB used by bootloader
SRAM	2.5 KB (ATmega32u4)
EEPROM	1 KB (ATmega32u4)
Clock Speed	8 MHz

Arduino Starter Kit

The Arduino Starter Kit!

This kit walks you through the basics of using the Arduino in a hands-on way. You'll learn through building several creative projects. The kit includes a selection of the most common and useful electronic components with a book of 15 projects. Starting the basics of electronics, to more complex projects, the kit will help you control the physical world with sensor and actuators.

The projects in the kit are:

01 GET TO KNOW YOUR TOOLS an introduction to the concepts you'll need to use this kit

02 SPACESHIP INTERFACE design to control panel for your startship

03 LOVE-O-METER measure how hot-blooded you are

04 COLOR MIXING LAMP produce any color with a lamp that uses light as an input
05 MOOD CUE clue people in to how you're doing
06 LIGHT THEREMIN create a musical instrument you play by waving your hands
07 KEYBOARD INSTRUMENT play music and make some noise with this keyboard
08 DIGITAL HOURGLASS a light-up hourglass that can stop you from working too much
09 MOTORIZED PINWHEEL a color wheel that will have your head spinning
10 ZOETROPE create a mechanical animation you can play forward or reverse
11 CRYSTAL BALL a mystical tour to answer all your tough question
12 KNOCK LOCK tap out the secret code to open the door
13 TOUCHY-FEEL LAMP a lamp that responds to your touch
14 TWEAK THE ARDUINO LOGO control your personal computer from your Arduino
15 HACKING BUTTONS create a master control for all your devices!

Once you’ve mastered this knowledge, you’ll have a palette of software and circuits that you can use to create something beautiful, and make someone smile with what you invent.

Then build it, hack it and share it. Because Arduino is you!

What in the kit is listed below:

1	Arduino Projects Book (170 pages)
1	Arduino UNO board rev.3
1	USB cable
1	Breadboard
1	Easy-to-assemble wooden base
1	9v battery snap
70	Solid core jumper wires
2	Stranded jumper wires
6	Photoresistor [VT90N2 LDR]
3	Potentiometer 10kilohm
10	Pushbuttons
1	Temperature sensor [TMP36]
1	Tilt sensor
1	alphanumeric LCD (16x2 characters)
1	LED (bright white)
1	LED (RGB)
8	LEDs (red)
8	LEDs (green)
8	LEDs (yellow)
3	LEDs (blue)
1	Small DC motor 6/9V
1	Small servo motor
1	Piezo capsule [PKM17EPP-4001-B0]
1	H-bridge motor driver [L293D]
2	Optocouplers [4N35]
5	Transistor [BC547]
2	Mosfet transistors [IRF520]
5	Capacitors 100nF
3	Capacitors 100uF
5	Capacitor 100pF
5	Diodes [1N4007]
3	Transparent gels (red, green, blue)
1	Male pins strip (40x1)
20	Resistors 220 ohm
5	Resistors 560 ohm
5	Resistors 1 kilohm
5	Resistors 4.7 kilohm
10	Resistors 10 kilohm
5	Resistors 1 megohm
5	Resistors 10 megohm

Leica DISTO™ D210 Laser Distancemeter

The compact and handy entry-level model has many interesting functions and is still simple to use. Addition and subtraction, area and volume calculations for rapid and reliable site measurement. The last 10 results are stored.

Leica DISTO™ D210 – leave the measuring tape behind.

Power Range Technology™
IP54 dust and water splash protection
Illuminated 3-line display
Automatic multifunctional end-piece

Technical specifications:
Typical measuring accuracy	± 1 mm
Range	up to 80 m
Measuring units	0.000 m, 0.0000 m, 0.00 m, 0.00 ft, 0‘00‘‘ 1/32, 0.0 in, 0 in 1/32
Power Range Technology™	•
Distance in m Ø of the laser dot in mm	10, 50, 100 m 6, 30, 60 mm
Protection class	IP54 – dust and splash water protected
Measurements per set of batteries	up to 5000
Batteries	type AAA 2 × 1,5 V
Dimensions	114 × 50 × 27 mm
Weight with batteries	126 g

Functions:
Min/max measurement	•
Continuous measurement	•
Stake out function	•
Addition/subtraction	•
Area/volume	•
Painter function	•
Pythagoras	2 and 3 points
Memory	10 Results
Illuminated display	•
Multifunctional end-piece	with automatic recognition

Thursday, December 20, 2012

Meanwell S-250-24 Industrial Standard Power Supply

SPECIFICATION

MODEL S-250-24

DCVOLTAGE 24V

RATEDCURRENT 10A

CURRENTRANGE 0~10A

RATEDPOWER 240W

RIPPLE&NOISE(max.) 120mVp-p

OUTPUT VOLTAGE ADJ.RANGE 21.6~26.4V

VOLTAGETOLERANCE 1.0%

LINEREGULATION 0.5%

LOADREGULATION 0.5%

SETUP,RISETIME 800ms,50msatfullload

HOLDTIME (Typ.) 19msatfullload

VOLTAGERANGE 90~132VAC/176~264VACSelectedbyswitch 248~370VDC

FREQUENCY RANGE 47~63Hz

INPUT EFFICIENCY (Typ.) 81.5%

ACCURRENT (Typ.) 4.8A/115VAC 2.8A/230VAC

INRUSHCURRENT (Typ.) COLDSTART 45A/230VAC

LEAKAGECURRENT <2ma nbsp="nbsp" p="p">

105~135% ratedoutputpower

OVERLOAD

Protectiontype:Hiccupmode,recoversautomaticallyafterfaultconditionisremoved

PROTECTION

27.6~32.4V

OVERVOLTAGE

Protectiontype: Hiccupmode,recoversautomaticallyafterfaultconditionisremoved

WORKINGTEMP. -10~+60 (Referto"DeratingCurve")

WORKINGHUMIDITY 20~90%RHnon-condensing

ENVIRONMENT STORAGETEMP.,HUMIDITY -20~+85 ,10~95%RH

TEMP.COEFFICIENT 0.03%/ (0~50 )

VIBRATION 10~500Hz,2G10min./1cycle,60min.eachalongX, Y,Zaxes

SAFETY STANDARDS UL60950-1approved

SAFETY WITHSTANDVOLTAGE I/P-O/P:3KVAC I/P-FG:1.5KVAC O/P-FG:0.5KVAC

ISOLATIONRESISTANCE I/P-O/P,I/P-FG,O/P-FG:100MOhms/500VDC /25 /70%RH

MTBF 238.9Khrsmin. MIL-HDBK-217F(25 )

OTHERS DIMENSION 150*140*86mm(L*W*H)

PACKING 1.15Kg;8pcs/10.2Kg/0.97CUFT

Meanwell S-200-24 Industrial Standard Power Supply

output 24VDC / 8,8 Amp

Manufacturer	Mean Well
Part No:	S-200-24
RoHS:	No
Efficiency:	81.5(Typ) %
Input Frequency:	47 to 63 Hz
Family:	S-200
Supplier_Package:	N/A
Packaging:	N/A
Input Voltage:	85 to 132,176 to 264 V
Pin_Count:	7
Mounting:	Desktop
Minimum Isolation Voltage:	3000 VAC
Operating Temperature:	-20 to 60 °C

Wednesday, December 19, 2012

Meanwell NES-100-24 Industrial Standard Switching Power Supply

Output : 24VDC / 4.5 Amp

Manufacturer	Mean Well - Taiwan
Part No:	NES-100-24
RoHS:	No
Efficiency:	86(Typ) %
Input Frequency:	47 to 63 Hz
Family:	NES-100
Supplier_Package:	N/A
Packaging:	N/A
Input Voltage:	85 to 132,176 to 264 V
Pin_Count:	7
Mounting:	Desktop
Minimum Isolation Voltage:	3000 VAC
Operating Temperature:	-20 to 60 °C

Thursday, December 13, 2012

MQ136 Semiconductor Sensor for H2S (Hidrogen Sulfida)

Sensitive material of MQ136 gas sensor is SnO2, which with lower conductivity in clean air. When the target H2S gas exist, the sensor’s conductivity is more higher along with the gas concentration rising. Please use simple electrocircuit, Convert change of conductivity to correspond output signal of gas concentration.

MQ136 gas sensor has high sensitity to H2S. It has low sensitivity to normal combustible gases, which is with low cost and suitable for different application.

Character

*Good sensitivity to H2S

* Long life and low cost

* Simple drive circuit

Application

* Domestic H2S concentration detector

* Industrial H2S leakage detector

* Portable H2S detector

Technical Data

Model No.			MQ136
Sensor Type			Semiconductor
Standard Encapsulation			Bakelite (Black Bakelite)
Detection Gas			H2S
Concentration			1-200ppm ( H2S )
Circuit	Loop Voltage	Vc	≤24V DC
	Heater Voltage	VH	5.0V±0.2V ACorDC
	Load Resistance	RL	Adjustable
Character	Heater Resistance	RH	31Ω±3Ω（Room Tem.）
	Heater consumption	PH	≤900mW
	Sensing Resistance	Rs	2KΩ-20KΩ(in 50ppm SO2)
	Sensitivity	S	Rs(in air)/Rs(50ppm SO2)≥3
	Slope	α	≤0.6(R100ppm/R50ppm SO2)
Condition	Tem. Humidity		20℃±2℃；65%±5%RH
	Standard test circuit		Vc: 5.0V±0.1V； VH: 5.0V±0.1V
	Preheat time		Over 48 hours

MQ131 Semiconductor Sensor for Ozone

Sensitive material of MQ131 gas sensor is SnO2 which with lower conductivity in clean air. When Ozone gas appears, the sensor’s conductivity is higher along with the gas concentration rising. Please use simple electric circuit, Convert change of conductivity to correspond output signal of gas concentration.

MQ131 gas sensor has high sensitivity to Ozone, also sensitive to CL2, NO2, etc.

Character:

* Good sensitivity to Ozone in wide range

* High sensitivity to Ozone

* Long life and low cost

* Simple drive circuit

Application:

* Domestic Ozone concentration overload Detector

* Industrial Ozone concentration overloads Detector

* Portable Ozone concentration overloads Detector

Technical Data:

Model No.			MQ131
Sensor Type			Semiconductor
Standard Encapsulation			Bakelite (Black Bakelite)
Detection Gas			Ozone
Concentration			10-1000ppb
Circuit	Loop Voltage	Vc	≤24V DC
	Heater Voltage	VH	5.0V±0.2V AC or DC
	Load Resistance	RL	Adjustable
Character	Heater Resistance	RH	31Ω±3Ω（Room Tem.）
	Heater consumption	PH	≤900mW
	Sensing Resistance	Rs	50KΩ-500KΩ(in 100ppb O3)
	Sensitivity	S	Rs(in air)/Rs(in 50ppb O3)≥3
	Slope	α	≤0.6(R500ppb/R100ppb O3)
Condition	Tem. Humidity		20℃±2℃；65%±5%RH
	Standard test circuit		Vc:5.0V±0.1V； VH: 5.0V±0.1V
	Preheat time		Over 48 hours

MC33887APVW 5.0 A H-Bridge with Load Current Feedback

The 33887 is a monolithic H-Bridge Power IC with a load current feedback feature making it ideal for closed-loop DC motor control.The IC incorporates internal control logic, charge pump, gate drive, and low RDS(ON) MOSFET output circuitry. The 33887 is able to control inductive loads with continuous DC load currents up to 5.0 A, and with peak current active limiting between 5.2 A and 7.8 A. Output loads can be pulse width modulated (PWM-ed) at frequencies up to 10 kHz. The load current feedback feature provides a proportional (1/ 375th of the load current) constant-current output suitable for monitoring by a microcontroller’s A/D input. This feature facilitates the design of closed-loop torque/speed control as well as open load detection.

A Fault Status output pin reports undervoltage, short circuit, and overtemperature conditions. Two independent inputs provide polarity control of two half-bridge totem-pole outputs. Two disable inputs

force the H-Bridge outputs to tri-state (exhibit high-impedance).

The 33887 is parametrically specified over a temperature range of -40°C ≤ TA ≤ 125°C and a voltage range of 5.0 V ≤ V+ ≤ 28 V. Operation with voltages up to 40 V with derating of the specifications.

Features

Fully specified operation 5.0 V to 28 V
Limited operation with reduced performance up to 40 V
120 mΩ RDS(ON) Typical H-Bridge MOSFETs
TTL/CMOS Compatible Inputs
PWM Frequencies up to 10 kHz
Active Current Limiting (Regulation)
Fault Status Reporting
Sleep Mode with Current Draw ≤50 μA (Inputs Floating or Set to Match Default Logic States)

DS80C320-MCL - Dallas / Maxim 8- bit Microcontrollers (MCU) High-Speed Low-Power

DS80C320-MCL - Dallas / Maxim 8- bit Microcontrollers (MCU) High-Speed Low-Power

FEATURES
80C32-Compatible 8051 Pin and Instruction Set Compatible Four 8-Bit I/O Ports Three 16-Bit Timer/Counters 256 Bytes Scratchpad RAM Addresses 64kB ROM and 64kB RAM High-Speed Architecture 4 Clocks/Machine Cycle (8032 = 12) DC to 33MHz (DS80C320) DC to 18MHz (DS80C323) Single-Cycle Instruction in 121ns Uses Less Power for Equivalent Work Dual Data Pointer Optional Variable Length MOVX to Access Fast/Slow RAM/Peripherals High-Integration Controller Includes: Power-Fail Reset Programmable Watchdog Timer Early Warning Power-Fail Interrupt Two Full-Duplex Hardware Serial Ports 13 Total Interrupt Sources with Six External Available in 40-Pin DIP, 44-Pin PLCC, and 44-Pin TQFP

Specifications:

Clock Frequency Max: 33 MHz
Core: 80C
Data Bus Width: 8 bit
Data ROM Size: 64 Kb
Height: 4.45 mm (Max)
Interface: UART
Length: 52.71 mm (Max)
Mounting Style: Through Hole
Number of I/O Lines: 32
Number of Timers: 3
On-Chip ADC: No
Operating Supply Voltage: 4.25 V to 5.5 V
Operating Temperature Range: 0 C to + 70 C
Package / Case: PDIP-40
Packaging Type: Tube
Processor Series: DS80C320
Program Memory Size: 64 Kb
Program Memory Type: ROMLess
RAM Size: 256 B
Supply Voltage Min: 4.5 V
Width: 14.61 mm (Max)

MC33794EK - IC, SENSOR, PROXIMITY, EFID, SMD by Freescale Semiconductor

MC33794EK - IC, SENSOR, PROXIMITY, EFID, SMD by Freescale Semiconductor
IC Sensors to detect the presence of an electric field that is equipped with a watchdog timer and power on reset timer.