• Model: F695ZZ
• Material: Chrome Steel
• Size: 5mm x 13mm x 4mm

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

• Type:Flexible Shaft Coupling
• Material: Aluminium
• Size: 5mm x 8mm.
• Outside Diameter: 19mm
• Length: 25mm.
• Colour: Silver
• Main dimensions: d1=5mm,d2=8mm,D=19mm,L=25mm

This nifty little USB pig-tail adds audio input and output through USB. It's a cheap and cheerful solution for audio input to your Raspberry Pi, and the short cable design means it plays nicely with the other USB ports on a Pi.

After testing a wide range of USB audio dongles, this was the winner through being simple, low on noise and artefacts, and free from pointless buttons, bells, and whistles. The ferrite bead on the cable is a nice little extra.

What's in the box?

1 x USB sound adapter

Resources

In Raspbian, this device should show up in the audio control panel automagically (go to the Raspberry Pi menu, then Preferences, then Audio Device Settings, and select USB PnP Sound Device).

We recommend providing a good signal to the input, as it provides no gain/boost for passive mics.

Once you're up and running, record audio input on your Pi, in the terminal, by typing:
arecord -D plughw:1 -f cd /tmp/recording.wav

Add quality audio input output to your Raspberry Pi


• 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

If you love to power your projects with convenient 5V USB, then this DC-DC Step-Down Buck Module with Dual USB 5V 3A Output is an ideal choice!

Dual USB Output Buck Power Supply Adapter For Car Auto Cellphone MP3 and much more!

Specifications

• Model:usb1002
• Name: Power Module
• Features: Buck Charge
• Product size: 33mm x 33mm x 8mm
• Input voltage range: 6-24V
• Output voltage: 5.2V (the output terminal is 5.3-5.4V, the load side is 5.1-5.2V)
• Output Current: 3A (without heat sink, the stability of the output current is 2A)

Important Notes

• The input voltage can not exceed 24V, otherwise it will cause damage to the device!
• The input positive and negative can not be reversed, otherwise it will cause damage to the device!
• You will only be able to make use of the 3A current rating at higher input voltages!

What's in the box?

1 x Dual USB Power Module

• High performance
• Small volume, easily embeded to other products
• Strong function, with the support of lwIP protocol, freertos
• Support three modes: AP, STA and AP STA
• Support for lua program, easy to develop

• Size: 5mm
• Length: 37mm
• Emitted colour: Infrared
• Lens color: Black/Clear
• wavelength: 940nm
• Forward voltage (V): 1.2-1.4V
• Forward current (mA): 100mA
• Transmitting and receiving distance: about 7-8 Meters

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

• Model : LJ12A3-4-Z / BY
• Operating Voltage : DC 6-36V
• Output Type : PNP
• Output Status : Normally Open
• Detection object : metal objects
• Detection distance : 4 mm
• Output Current : 300 mA
• Response Frequency : 0.5KH
• Working temperature : Temperature range -30 ° to 60 °
• Dimensions : 12 mm screw diameter
• Cable length : about 115 cm
• Material : Metal and plastic

• Temperature measurement range: -55°C ~ +125°C
  
• Accuracy: ± 0.5°C
  
• Encapsulation: TO-92

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