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Anemometer / Wind Speed Sensor (Output 4-20mA / 0-5V )
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Body Material: Metal Alloy
The core sensor types: honeywell sensor 
Signal output way: pulse current: 4-20 mA /0-5V
Sensor styles: three cups 
Start wind speed: 0.2 m/s 
Effective wind speed measuring range: 0 to 30 m/s 
System error: plus or minus 3 
Connection mode: three wire system 
Working temperature: - 40  ~ 80 
Power supply: DC12-24 V

Technical parameters:

Body Material: Metal Alloy
The core sensor types: honeywell sensor 
Signal output way: pulse current: 4-20 mA /0-5V
Sensor styles: three cups 
Start wind speed: 0.2 m/s 
Effective wind speed measuring range: 0 to 30 m/s 
System error: plus or minus 3 
Transmission distance: more than 1 km 
Transmission medium: cable transmission 
Connection mode: three wire system 
Working temperature: - 40  ~ 80 
Power supply: DC12-24 V
Max power consumption: 4 W
Size: see the size chart 
Weight:  1 kg 
Cable Length:3m

 

Dimensions (unit:mm):

 

photo 56FE72474_zps94ebd446.png

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30A Dual H-bridge Monster Moto Shield VNH2SP30
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Features:

  • Voltage max: 16V
  • Maximum current rating: 30 A
  • Practical Continuous Current: 14 A
  • Current sensing available to Arduino analog pin
  • MOSFET on-resistance: 19 mΩ (per leg)
  • Maximum PWM frequency: 20 kHz
  • Thermal Shutdown
  • Undervoltage and Overvoltage shutdown

Documents:

Note: When using this board in extreme high-demand applications it may be necessary to improve thermal performance with a heat-sink or fan and to solder the wires directly to the board instead of using a screw terminal (in addition to the myriad other complications present in a high-current system) However, when using the board at currents up to 6A the chips will barely become noticeably warm.

 

RTC DS3231IIC Module Precision Real Time Clock Module
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Size: 38mm (length) * 22mm (W) * 14mm (height)
Operating voltage :3.3 - 5 .5 V
Clock chip: high-precision clock chip DS3231
Clock Accuracy :0-40 ℃ range, the accuracy 2ppm, the error was about 1 minute
Calendar alarm clock with two
Programmable square-wave output
Real time clock generator seconds, minutes, hours, day, date, month and year timing and provide valid until the year 2100 leap year compensation
Chip temperature sensor comes with an accuracy of ± 3 ℃
Memory chips: AT24C32 (storage capacity 32K)
IIC bus interface, the maximum transmission speed of 400KHz (working voltage of 5V)
Can be cascaded with other IIC device, 24C32 addresses can be shorted A0/A1/A2 modify default address is 0x57
With rechargeable battery LIR2032, to ensure the system after power failure, the clock move any natural normal
Wiring instructions (with Arduino uno r3 for example):
SCL → A5
SDA → A4
VCC → 5V
GND → GND

Carbon fiber Magnetic Propeller Balancer (maglev) for Quadcopter/Multi axis Aerial
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Fixed plate using carbon fiber materials using the N45 high performance magnet.
The center fixed shaft maglev way to test products to ensure a balance of zero resistance.
Applicable to any size and 80 grams or less fixed-wing propeller.
Model: propeller balancer (magnetic levitation)
Material: Carbon fiber
Bag size: 6 * 5.5 * 4.5cm / 2.4 * 2.2 * 1.8 (per bag)
Weight: 46g / 1.6oz

2004 Basic 20x4 Character LCD Display (Blue Back-light )
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This is a 20 character by 4 line display that runs at 5.0V.Includes Blue LED backlight. Utilizes the common SPLC780D(Superior to KS0066U)parallel interface (datasheet).
Interface code is widely available for many different controllers and systems. If you used Arduinos board, just load the Example from Arduinos LiquidCrystal Library.

 

This is a 20 character by 4 line display that runs at 5.0V.Includes Blue LED backlight. Utilizes the common SPLC780D(Superior to KS0066U)parallel interface (datasheet).
Interface code is widely available for many different controllers and systems. If you used Arduinos board, just load the Example from Arduinos LiquidCrystal Library and Hook everything up EXACTLY like in the picture from Arduino page:
http://arduino.cc/en/uploads/Tutorial/lcd_schem.png.
The more information check here.

Features:

  • High quality STN 20x4 character LCD
  • 5V power supply
  • White LED Backlight
  • 5x8 dot characters
  • SPLC780D controller
  • 1/16 duty cycle

Dimensions: 0.55 x 2.3 x 3.8" (14 x 60 x 98mm)

Documents:

Micro TF SD Card Module
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Control Interface:
A total of six pins (GND, VCC, MISO, MOSI, SCK, CS), GND to ground, VCC is the power supply, MISO, MOSI, SCK is the SPI bus, CS is the chip select signal pin

3.3V regulator circuit:
LDO regulator output 3.3V as level converter chip, Micro SD card supply.

 

   
Model MicroSD Card Adapter v0.9b
Quantity 1
Color Blue
Material PCB
Features Working voltage: VCC 4.5~5.5V; Current: 0.2~200mA; Interface electrical level: 3.3V / 5V; Onboard 3.3V voltage regulator circuit; Supports Micro SD up to 2GB; Micro SDHC up to 32GB; Leads: GND, VCC, MISO, MOSI, SCK, CS; SPI standard interface ; 4 M2 2.2mm screw installation holes
Specification Greatly expands the Arduino memory
Application For your DIY project
English Manual/Spec Yes
Packing List 1 x Board
Control Interface:
A total of six pins (GND, VCC, MISO, MOSI, SCK, CS), GND to ground, VCC is the power supply, MISO, MOSI, SCK is the SPI bus, CS is the chip select signal pin

3.3V regulator circuit:
LDO regulator output 3.3V as level converter chip, Micro SD card supply

Level conversion circuit:
Micro SD card into the direction of signals into 3.3V, MicroSD card toward the direction of the control interface MISO signal is also converted to 3.3V, general AVR microcontroller system can read the signal

Micro SD card connector:
Since the bomb deck for easy card insertion and removal.

Positioning holes:
4 M2 screws positioning hole diameter of 2.2mm, the module is easy to install positioning, to achieve inter-module combinationimensions: 1.81 in x 0.94 in x 0.28 in (4.6 cm x 2.4 cm x 0.7 cm)
Weight: 0.18 oz (5 g)
 

7.5 Ohm 0603 SMD Resistor( 20pcs packet)
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7.5 Ohm 0603 SMD Resistor