New products
1.75mm PLA Orange 3D printer filament 1Kg (Economy )
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Material: PLA 
Temperature: 190C to 220C Degree
Heating Bed :0 to 60C degree

Color: Orange

Weight: 1Kg

1.75mm PLA Yellow 3D printer filament 1Kg (Economy )
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Material: PLA 
Temperature: 190C to 220C Degree
Heating Bed :0 to 60C degree

Color: yellow

Weight: 1Kg

1.75mm PLA Light Grey 3D printer filament 1Kg (Economy )
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Material: PLA 
Temperature: 190C to 220C Degree
Heating Bed :0 to 60C degree

Color: Light Grey

Weight : 1Kg

1.75mm PLA white 3D printer filament 1Kg (Economy )
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Material: PLA 
Temperature: 190C to 220C Degree
Heating Bed :0 to 60C degree

Color: white

Weight : 1Kg

1.75mm PLA light green 3D printer filament 1Kg (Economy )
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Material: PLA 
Temperature: 190C to 220C Degree
Heating Bed :0 to 60C degree

Color: Light Green

Weight : 1Kg

1.75mm PLA Blue 3D printer filament 1Kg (Economy )
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Material: PLA 
Temperature: 190C to 220C Degree
Heating Bed :0 to 60C degree

Colour: Blue

Weight : 1Kg

4 Channel Relay Module made by ewallpk
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this is a 4 channel relay module completely designed and manufactured by ewallpk

Specifications:

Material: Mixed Material
Dimensions (cm): 7.7 x 5.5 x 2
Weight (kg): 0.063
Control signal: the TTL level

Rated load:
10A/250vAC
10A/125vAC
10A/30DC
10A/ 28vDC

Rated by current: 10A (NO),5A (NC)
Largest switching voltage: 250vAC,30 VDC
Below contact action time: 10ms

Pin Definition:

1. 1-4 channel - control,
2. The power supply (VCC)
3. The ground (GND)

2 Channel Relay Module made by ewallpk
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This relay module is completely designed and manufactured by ewallpk,

The 2 channel 5V relay module provides 2 optically isolated inputs that accept a wide range of voltage, including the 3VDC and 5VDC signals available on the Arduino. This is a great way to switch on or off AC or DC loads using your Arduino.

The relays are single-pole-double-throw (SPDT) and are rated for 10A @ 250VAC. The ground for the relay coils is separate from the ground for the input signals. This, along with the optical isolation, provides a total galvanic isolation between the input and output. The two grounds could be joined together if desired with the included jumper.

The relay coils run on 5VDC, and the module has screw-terminal blocks for sturdy and reusable attachments for the external load. The signal and power inputs run through the male single-row header.

VK16E GMOUSE GPS Module SIRF3 Chip GPS Module w/Ceramic Antenna
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Description:
Product main chip: U-BLOX UBX-G7020-KT
Built-in LNA signal amplifier
Built-in Flash, free configuration of product parameters
Industry-standard 25 x 25 x 4mm high-sensitivity ceramic antenna
Built-in TCXO crystal and Farah capacitor faster hot start
1-10Hz positioning update rate
Frequency:  L1, 1575.42MHz
Baud rate:  4800,9600,19200,38400,57600,112500bps(default baud rate is 9600)
Channel:  56
Sensitivity tracking: -162dBm Capture: -160dBm cold start -148dBm
Cold start averages:  29 seconds
Warm start averaging:  28 seconds
Hot start averages:  1 second
Precision: HorizontalPosition: Autonomous <2.5maverage
SBAS <2.0m average
Timepulse signal: RMS 30 ns
Maximum height: 50000 meters
Maximum speed: 500 m / s
Maximum acceleration:  ≦ 4G
Update frequency:  1-10 Hz
Dimensions 28 x 28 x 8.5 mm
Weight:  30 grams
Operating temperature -40  to 85 degree celsius
Storage temperature -40 to 85 degree celsius

Application:
It can be used in vehicle monitoring, bus station, car guide
Navigation, ship navigation, notebook navigation and other products
google link https://drive.google.com/file/d/0B8DSGdAr8_31bUdiMWJacjd5X0U/view?usp=sharing (亚马逊用)

Package Included:
1 X G28U7FTTL Replace VK16E GMOUSE GPS Module
1 X cable

PCF8591 AD and DA Converter Module Analog to Digital and Digital to Analog Conversion Module
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Description:

1. A module chip using PCF8591
2. module supports external voltage input capture (input voltage range 0-5v)
3. Three modules integrated photoresistor acquisition environment through the AD intensity accurate numerical
4. modules integrated thermistor, can capture the precise value of the ambient temperature through the AD
5. The five-module integrated 1 channel 0-5V voltage input acquisition (blue potentiometer to adjust the input voltage)
6. modules with power indicator light (on the module after power indicator lights)
7. modules with the DA output indicator light board DA output indicator module DA output interface voltage reaches a certain value, the voltage the greater the light brightness is more obvious;
8. module PCB size: 3.6cm * 2.3cm
9. standard double-sided, plate thickness 1.6mm, the layout is nice, surrounded by the through-hole, aperture: 3mm, convenient fixed


Performance indicators:
Single-Supply Operation
PCF8591 operating voltage range of 2.5V to 6V
Low standby current
Through the I2C bus serial input / output
PCF8591 by 3 hardware address pins addressing
Sampling rate PCF8591 I2C bus rate decided
4 analog inputs programmable as single-ended or differential inputs
Automatic incremental channel selection
PCF8591 analog voltage range from VSS to VDD
PCF8591 built-in track and hold circuit
8-bit successive approximation A / D converter
Through an analog output DAC gain

Module interface:

The module's left and right, respectively, the external expansion of 2-way pin interface, respectively, as follows:
Output interface of the left the AOUT chip DA
The AINO chip analog input interface.
AIN1 chip analog input interface
AIN2 chip analog input interface
AIN3 chip analog input interface
The right side of the SCL IIC clock interface to access the microcontroller IO port
The SDA IIC digital interface connected microcontroller IO port
GND module to an external
VCC power supply interface external 3.3v-5v
Module red jumper instructions for use
Module three red short circuit cap, respectively, the role are as follows:
P4 connected to the P4 jumper, select thermistor access circuit
P5 connected to P5 jumper to select the photoresistor access circuit
P6 connected to the P6 jumper, to select 0-5V adjustable voltage access circuit

 

Package Included:
1 X PCF8591 Module
4 X Dupond Cable