Generic1

• Material: PP
• Voltage: about 12V DC
• Rated power: about 5W
• Operation model: normally closed (N/C)
• Pressure: about 0.02 - 0.8Mpa
• Port size: about G3/4
• Fluid temperature: about 0-100 degrees Celsius
• Usage: water and low viscosity fluids
• Flow characteristics:
• about 0.02Mpa>2L/min;
• about 0.10Mpa>10L/min;
• about 0.30Mpa>16L/min;
• about 0.80Mpa>28L/min

Note: Due to software changes, the ethernet port no longer works!

Want to add three extra USB ports to your Raspberry Pi Zero? You need one of these adapters! This one comes with a Micro USB B input, so it plugs directly into your Raspberry Pi Zero without the need for adapters or shims!

The hub has three full size USB inputs, so you can easily add USB peripherals like mice, keyboards and WiFi to your Zero!

Features

• Fully compatible with the Raspberry Pi Zero
• Micro USB 2.0 Input Port
• 3 x USB Ports

What's in the box?

1 x USB Hub

Need to send your Raspberry Pi USB signals over a long distance? You need one of these USB over Ethernet Booster sets! This USB booster allows you to connect a USB device to your Pi at a distance of up to 45 meters via the use of a Cat5e (or greater) RJ45 Ethernet Patch cable.

The kit consists of two USB to RJ45 extension adapters, one male one female, and it's bus powered, so requires no external power! Works best on longer distances.

USB Over Ethernet Booster Features

• USB Extension Adapter Pair
• Extend USB signal up to 45 meters via RJ45 (CABLE NOT INCLUDED)
• No additional drivers required - Plug n Play

This micro SD card to micro SD card extension cable is perfect for protecting your Raspberry Pi's micro SD card port! The flat flex cable is 45cm long, so it's perfect for mounting your SD card separately for easy access, or mounting your Raspberry Pi safely within an enclosure!

Features

• Micro SD Card Male to Micro SD Card Female
• Flex Cable ~ 45cm
• Supports SD Card Sizes: 16GB, 32GB 64GB 128GB
• Supports SD/SDHC/SDXC Cards

• Panel mounted fuse holder suitable for 5 x 20mm type fuses.
• With screw cap and solder-lug terminals.

• Material: Plastic Metal
• Colour: Black
• Current rating: 10A ( 250V AC ) / 15A ( 125V AC )
• Fuse size: 5 x 20mm
• Cutting hole: 12.5mm
• Length: 35mm

• Voltage: 6V
• Revolving Speed: 200RPM
• Motor Size: 12mm(diameter)*24mm(height)
• Shaft Size: 3mm(diameter)*10mm(length

• Power:  up to 1/4W
• Material:  carbon film 
• Lead diameter:  0.55 mm
• Tolerance : 5%
• Operating Temp :  -55C – 155C

Features

MQ-2:
Detection concentration: 300-1000ppm(combustible gas).

MQ-3:
Used in motor vehicles and other no drunken drivers homework personnel on-site testing, also used in other places of ethanol vapor detection.

Size: 32 x 22 x 27mm
Main chip: LM393, ZYMQ - 3 gas sensors
Working voltage: DC 5V
1, With a signal output instructions.
2, Two-way signal output (TTL level output and analog output)
3, TTL output signal for low level effectively.(when the low output electric signal lights at ordinary times, can be directly by single chip microcomputer)
4, Analog 0 - 5V voltage, the higher the concentration, the higher the voltage.
5, To ethanol steam has a high sensitivity and good selectivity.
6, In June and has long service life and reliable stability.
7, Rapid response recovery features.


MQ-4:

1, Using high-quality dual-panel design, with power indicator and TTL signal output instructions;
2, With a DO switch signal (TTL) output and AO analog signal output;
3, TTL output valid signal is low. (When the output low signal light can be directly connected microcontroller or relay module)
4, The analog output voltage, the higher the concentration the higher the voltage.
5, Methane, natural gas has better detection sensitivity.
6, There are four screw holes for easy positioning;
7, Product Dimensions: 32 (L) * 20 (W) * 22 (H)
8, With a long service life and reliable stability
9, Rapid response and recovery characteristics
 
Electrical properties
Input voltage: DC5V power (current): 150mA
DO output: TTL digital 0 and 1 (0.1 and 5V)
AO output :0.1-0 .3 V (relatively clean), the highest concentration of voltage around 4V

MQ-5:

Suitable for home or industrial on LPG, natural gas, coal gas monitoring devices. Excellent resistance to alcohol, smoke interference.


1, Using high-quality dual-panel design, with power indicator and TTL signal output instructions;
2, With a DO switch signal (TTL) output and AO analog signal output;
3, TTL output valid signal is low. (When the output low signal light can be directly connected microcontroller or relay module)
4, The analog output voltage, the higher the concentration the higher the voltage.
5, For gas, natural gas has better detection sensitivity.
6, There are four screw holes for easy positioning;
7, Product Dimensions: 32* 20 * 22
8, With a long service life and reliable stability
9, Rapid response and recovery characteristics
 
Electrical properties
Input voltage: DC5V power (current): 150mA
DO output: TTL digital 0 and 1 (0.1 and 5V)
AO output :0.1-0 .3 V (relatively clean), the highest concentration of voltage around 4V

MQ-6:

Suitable for domestic or industrial on LPG (liquefied petroleum gas), butane, propane, LNG (liquefied natural gas) detection devices. Excellent resistance to ethanol vapor, smoke interference.

1, Using high-quality dual-panel design, with power indicator and TTL signal output instructions;
2, With a DO switch signal (TTL) output and AO analog signal output;
3, TTL output valid signal is low. (When the output low signal light can be directly connected microcontroller or relay module)
4, 0 ~ 5V analog output voltage, the higher the concentration the higher the voltage.
5, The propane, butane, LPG, LNG has a good detection sensitivity.
6, There are four screw holes for easy positioning;
7, Product Dimensions: 32 (L) * 20 (W) * 22 (H)
8, With a long service life and reliable stability
9, Rapid response and recovery characteristics
 
Electrical properties
Input voltage: DC5V power (current): 150mA
DO output: TTL digital 0 and 1 (0.1 and 5V)
AO output :0.1-0 .3 V (relatively clean), the highest concentration of voltage around 4V

MQ-7:

For home, carbon monoxide detection device environment. Suitable for carbon monoxide and gas detection.

Detection of concentration: 10-1000ppmCO
Loop voltage Vc: <=10V DC
Heater voltage Vh: 5.0V ±0.2V  ACorDC(high)
Load resistance: adjustable.
Heater  resistance RH: 31ohm ± 3 ohm(room temperature)
Heater power consumption PH: <=350mW

Standard test conditions
Temperature: 20 degree ± 2 degree
Humidity: 65% ± 5% RH
Standard test circuit: Vc: 5.0V ± 0.1V; Vh(high):5.0V±0.1V
                                   Vh(low):1.5V±0.1V

1, The analog output voltage, the higher the concentration the higher the voltage.
2, The carbon monoxide detection with better sensitivity.
3, There are four screw holes for easy positioning;
4, Product Dimensions: 32 (L) * 20 (W) * 22 (H)
5, With a long service life and reliable stability
6, Rapid response and recovery characteristics
 
Electrical properties
Input voltage: DC5V power (current): 150mA
DO output: TTL digital 0 and 1 (0.1 and 5V)
AO output :0.1-0 .3 V (relatively clean), the highest concentration of voltage around 4V

MQ-8:

Suitable for domestic or industrial hydrogen leak on a monitoring device. Are not subject to ethanol vapor, soot, carbon monoxide and other gases interference.

MQ-9:

For home or factory gas leak detection device, suitable for carbon monoxide, combustible gas monitoring device.

Can test carbon monoxide: 10 to 1000ppm CO
Combustible gas range: 100 to 10000ppm

Loop voltage Vc: <=10V DC
Heater voltage Vh: 5.0V ±0.2V  ACorDC
Heater resistance: 31 ohm ± 3 ohm(room temperature).
Heater power consumption PH: <=900mW
Standard test conditions:
Temperature: 20 degree ± 2 degree
Humidity: 65% ± 5% RH
Standard test circuit: Vc: 5.0V ± 0.1V
Vh:5.0V±0.1V
Warm up time: more than 48 hours.

MQ-135:

MQ135 gas sensor is sensitive material used in clean air, low conductivity tin dioxide (SnO2). When the sensor is kept in their environment
The contaminated gas, the conductivity of the sensor with the air pollution gas concentration increases. Using a simple circuit can be changes in the conductivity
Of the concentration of the gas is converted to the corresponding output signal.
MQ135 sensor for ammonia, sulfide, benzene vapor high sensitivity, smoke and other harmful monitor is also very satisfactory. This sensor can detect a
Measuring a variety of harmful gases, is a low-cost sensors for a variety of applications.

Module Applications
For home, environmental harmful gas detection device, suitable for ammonia, aromatic compounds, sulfur, benzene vapor, smoke and other gases harmful gas detection, gas sensors tested concentration range: 10 to 1000ppm.

Loop voltage Vc: <=24V DC
Heater voltage Vh: 5.0V ±0.2V  ACorDC
Load resistance: Adjustable
Heater resistance: 31 ohm ± 3 ohm(room temperature).
Heater power consumption PH: <=900mW
Sensitive body surface resistance Rs:2K ohm - 20K ohm(in 100ppm NH3)
sensitivity S: Rs(in air)/ Rs(100ppmNH3)>=5
Standard test conditions:
Temperature: 20 degree ± 2 degree
Humidity: 65% ± 5% RH
Standard test circuit: Vc: 5.0V ± 0.1V
Vh:5.0V±0.1V
Warm up time: More than 48 hours.

What's in the box?

1 x MQ2
1 x MQ-3
1 x MQ-4
1 x MQ-5
1 x MQ-6
1 x MQ-7
1 x MQ-8
1 x MQ-9
1 x MQ-135

Analog to digital converter not included
Configure and read MQ-x gas sensor

The ProtoShield is a prototype expansion board with 2 LEDs and 2 buttons, which can be used directly with more convenience. All the pins and power have been lead out. It is very suitable for building prototype circuits with Arduino.

Features

• ProtoShield for Arduino Duemilanove
• To build prototype circuits
• Directly soldering components on board
• Connecting through the mini breadboard

What's in the box?

1 x Arduino compatible 328 protoshield prototype expansion board
1 x mini breadboard

• 74HC 595N IC
• Bits: 8
• Pin: 16
• Logic family: HC
• Logical function: shift register
• Output type: 3-State
• Propagation delay time: 285ns
• Operating supply voltage (Typ): 2.5V / 3.3V / 5V
• Operating temperature: -55°C ~ 125°C
• Operating supply voltage (Min): 2V
• Operating supply voltage (Max): 6V

• Dimensions: 20mm x 20mm
• Angle: 90 degree
• Suitable for use: PG20
• Material: Die cast aluminum. 

• A single module can drive a 8x8 dot matrix common cathode
• Working voltage: 5V
• Module size: 12.8 x 3.2 x 1.3 cm (L*W*H)
• With 64 fixing screw holes, hole diameter: 3mm
• Module with input and output interfaces, support for cascading multiple modules

This 10 turn potentiometer 5K Ohm is widely used to adjust timer, speed, temperature in all kinds of equipment such as medical instruments, welding machines, wire-cutting machines and virtually any industrial control system that requires a potentiometer.

Specifications

• Material: Plastic and Metal
• Shape: Round
• Resistance: 5K ohm
• Resistance tolerance: 5%
• Independent linear accuracy: 0.25%
• Power: 2W
• Max. Operating Voltage: 315V
• Storage temperature: -55 ~ 125℃
• Rotating life: 1000000
• Load life: 1000 hours
• Angle of Rotation :3600±5°

What's in the box?

1 x 5K Ohm potentiometer set

• 1pcs 10 turn potentiometer
• 1pcs rotary dial knob
• 1pcs small Hexagonal spanner

Resources

• Python Library
• Definition, Types, And Working Principle

• Material: Plastic and Metal
• Shape: round
• Turns: 10 turns
• Technics: wirewound
• Independent linearity: ±0.25%
• Resistance: 10K Ω
• Resistance tolerance: ±2 ~ ±10%
• Power-rating: 2W
• Angle of rotation: 3600±5°
• Rotational life (no load) cycles: 1,000,000
• Shaft diameter: 6.35mm
• Operating temperature range: 1℃ ~ 125℃
• Storage temperature: -55 ~ 125℃

• 1pcs 10 turn potentiometer
• 1pcs rotary dial knob
• 1pcs small Hexagonal spanner

• Setup
• Python Library
• Definition, Types, And Working Principle

• Great for electronic projects and kits.
  
• Perfect use for home, office and industry electrical equipment and electrical appliances
• Size: 10mm
• Voltage: 1.8V ~ 2.2V for Red & Yellow, 3.0V ~ 3.4V for Blue, Green & White
• Current: 20 mA
• Luminous Intensity: 5000 MCD
• Colour: RED, BLUE, YELLOW, GREEN, WHITE
• Lens Color : Diffused