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Features
- Size: 3.5 x 1cm
- Power supply: 5V DC
- Detector distance: 10mm
- Build-in Tcrt5000 Sensor NSOR
- Applicable to a variety of platforms including Arduino / AVR / ARM /PIC
What's in the box?
1 x Tracking Sensor Module
Resources
Build A Line-following robot
Description :
These door contact sensors are great for residential and hobby card access systems, as well as a security burglar alarm system. The door position switches operate with an internal magnetic reed switch that closes when the opposing magnet comes within range of the door sensor.
Hence when the door opens beyond the range point the door position switch will toggle from a closed signal to an open signal.
When this happens the access control system or alarm system will sense the change in continuity and will know that the door or window has been opened. When the door or window shuts, the door sensor will notify your security system that the opening has been closed.
Material Shield: Anti-fire ABS
Connecting Mode: N.C.
Rated Current: 100mA
Rated Voltage: (VDC)100
Operating Distance: More than 15mm, Less than 25mm
Rated Power: 3W
5 x KERUI Wired Door Switch
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
What's in the box?
1 x USB Over Ethernet Extender set
If your project is particularly resource-hungry then the Raspberry Pi may run a little hot. Cool it down with this nifty little heatsink!
Simply remove the backing from the pre-applied thermal tape and stick it on top of the main processor chip.
Specifications
- 14mm x 14mm (in 7mm height)
- Ideal for use with Raspberry Pi 3/4/zero
- Matte black finish
- Made from anodised aluminium
- Comes with pre-applied thermal tape for easy installation
- Anodised non-conductive coating
What's in the box?
1 x CPU Heatsink 7mm
Note: At 7mm tall this heatsink may interfere with some HAT boards.
Specifications
- Model: F695ZZ
- Material: Chrome Steel
- Size: 5mm x 13mm x 4mm
- Easy to install and replace.
- Less friction and higher speed.
- Smooth operation, high accuracy.
- Durable.
1 x Ball Bearing
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
What's in the box?
1 x Micro SD Extension Cable
- 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
What's in the box?
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
Features
- Rating: 3A 250V
- Mounting hole: 20mm
- Poles: SPST
- Terminal: 2-Pin(ON-OFF)
- Contact resistance: ≤30mΩ
- Insulation resistance: ≥100MΩ at 500V DC
- Dielectric strength: 1500V AC for 1 minute
- Operating temperature: -25°C - 85°C
- Electrical life: 10000 cycles
- Colour: black / red
What's in the box?
1 x Mini round red rocker switch
Resources
Introduction to Buttons and Switches
Types of buttons and switches
Specifications
- Voltage: 6V
- Revolving Speed: 200RPM
- Motor Size: 12mm(diameter)*24mm(height)
- Shaft Size: 3mm(diameter)*10mm(length
What's in the box?
1x Mini Metal Gear Motor
Getting started with Raspberry Pi gpiozero Motors
These are carbon film axial leaded through hole type and can handle up to 1/4W of power. 1/4W resistors are the most commonly used size for breadboarding, electronics and most common types of hobby projects.
Specifications
- Power: up to 1/4W
- Material: carbon film
- Lead diameter: 0.55 mm
- Tolerance : 5%
- Operating Temp : -55C – 155C
What's in the box?
10 x 220 ohm resistors
Resources
Resistors basics
Types of Resistors
Resistor colour codes
Features
1. It covers application ranging from simple domestic remote control to autonomous control, like auto door, window, lifting equipment, entrance access, up and down controller, alarm system industrial control and security etc.
2. These remote controls are designed to control a wide variety of electronic devices with a wireless signal.
3. Extremely easy to set up and use.
4. Compatible with 2262 / 2260 / 1527 / 2240 etc chip and several code wireless remote control. So it can meet someone's need of choosing the wireless remote control as they like to work with it .
Instructions
1. Press the learning code, the indicator flash, loosen your finger, press any button of the remote control, the indicator flash 2 times and off, it means you learn it successfully .
2. It can learn more than 12 PCS 2262 or 1527 chip with the different code wireless remote control.
3. remove/clean: press the learning button about 8 seconds , the indicator turn on to off, it means the information that you keep have been removed successfully.
Output working way
1. Self-lock: connect the JP1 with the cutting out cap.
2. Jog: the cutting-out cap is non-occupation, JP1 and JP2 do not connect either.
3. Inter-lock: Connect the Jp2 with the Cutting out cap,
Jog: press one button is ON, loosen your finger on the same button is OFF (need one channel switch and one buttons remote control).
Self -lock: press one button for one time is ON, press the same button again is OFF (need one channel switch and one buttons remote control).
Inter-lock: press one button is ON, press another button is OFF (need one channel switch and 2 buttons remote control).
Receiver
1. Working voltage: DC12V
2. Quiescent condition: Less than 6mA
3. Working temperature: -40°c 80°c
4. Receiver sensitivity: more than -105dBm
5. Working frequency: 433mhz
6. Output voltage: DC and AC is optional
7. Output current: Less than 3A
8. Max load current: 10A
9. Dimensions: 72 x 52 x 26mm
Remote control transmitter
1. Remote Distance: 200M
2. Operating Voltage: DC 12V
3. Frequency: 433mhz
4. Operating Current: 13 mAh
5. Code Type: Fixed code / Learning code
6. Dimensions: 58 x 39 x 14mm
Relay ratings
DC 14V 20A or AC 125V 20A
What's in the box?
2 x Transmitter
1 x Receiver
With a load capacity of Maximum output 3A in total on both ports. This module is perfect for powering most small electronic projects. Mostly used for: mobile power, mobile phones, flat-panel USB5V powered devices.
NOTE: You will only be able to use the rated 3A current output at higher input voltages!
Specifications
- Input: 9V-36V
- Output: 5V / 3A (MAX)
- Efficiency: 92% (MAX)
- Switching frequency: 150KHZ
- Operating temperature: -40 ℃ - 85 ℃
- Load capacity: Maximum output 3A in total on both ports
- Application: mobile power, mobile phones, flat-panel USB5V powered devices
What's in the box?
1 x DC Power Module
Widely used in various electronic products, instruments, apparatus and home appliances.
- Waterproof Boot
- Model: E-TEN1021
- Sizes: 29 x 16 x 56mm
- Style: On-Off
- Power: 15A 250VAC
- Connector Type: SPST
- Material(External): Metal
- Dielectric strength: 1000 V RMS (min)
- Insulation resistance: 100 Mω(min)
- Basal material: Poly propylene materials
- Mechanical life: More than 50.000 cycles
- Electrical life: More than 10,000 cycles
- Environment temperature: - 25 degrees ~ 80 degrees
- Vibration: 10 to 55Hz, 1.5 mm double amplitude
1 X SPST 2Pin Heavy Duty15A 250V ON/OFF Rocker Toggle Switch Waterproof Boot
Resources
Introduction to Buttons and Switches
Types of buttons and switches
An entire solution on the least amount of PCB area. This board is a 2.4 GHz dual mode WiFi and bluetooth chip by tsmc 40nm low power technology, power and optimized RF characteristics for a wide range of applications.
Features
- 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
What's in the box?
1 x Wemos Lolin ESP32 OLED Module
Specifications
- 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
What's in the box?
5 x Emitter IR Infrared Diode
5 x Receiver IR Infrared Diode
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
Specifications
- 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
Integrated circuit with small size and light weight, high reliability for improving the reliability of equipment.
What's in the box?
1 x 74HC595N 8 bit shift register IC