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Use this kit as inputs for sensing and outputs for reporting in your projects.
R329.90  Inc VAT
This module can simultaneously drive two DC motors or a 4-wire 2-phase stepper motor
R38.90  Inc VAT
R17.90  Inc VAT
Create your own little Arduino FM radio using this receiver
R209.90  Inc VAT
1.8inch colourful display module for micro:bit 160x128 (micro:bit display)

Please note: Micro:bit and USB cable not included

Overview

This is a colorful display module designed for the BBC micro:bit, 1.8inch diagonal, 160x128 pixels, capable of displaying 65K colors.

Tired of the 5x5 LED matrix? Time to get a tiny monitor for your micro:bit, this one would be the ideal choice.

Features

  • micro:bit edge connector, directly pluggable
  • Embedded driver ST7735S, supports 65K colors
  • Onboard SRAM 23LC1024, used as display cache, no more out of memory
  • SPI interface, takes up only a few IO pins
  • Backlight adjustment via PWM
  • Reserved solder pads for control interface, make it easy to connect with Arduino/Nucleo boards
  • Comes with development resources (micro:bit graphical demo/user manual, etc.)

Specifications

  • Driver: ST7735S
  • Resolution: 160x128
  • Display color: RGB, 65K colors
  • Operating voltage: 3.3V
  • Dimension: 61mm x 51.5mm

Pinouts

PINmicro:bit PINDESCRIPTION
3V33V3Power
GNDGNDGround
MISOP14SPI data master input/slave output
MOSIP15SPI data master output/slave input
SCKP13SPI clock input
LCD_CSP16LCD chip selection
RAM_CSP2SRAM chip selection
DCP12LCD data/command
RSTP8LCD reset
BLP1LCD backlight

Dimensions

Development Resources

Wiki : www.waveshare.com/wiki/1.8inch_LCD_for_micro:bit



R219.90  Inc VAT
Gamepad module for micro:bit with Joystick and Buttons (micro:bit gamepad)

Overview

This little module adds arcade controls to your micro:bit, makes it possible to turn the micro:bit into a mini game console. There's onboard buzzer to play music and game background effect. It is powered from a 14500 Li-ion battery (not included), conversely, it allows to charge the battery through USB connection.

Features

  • micro:bit edge connector, directly pluggable
  • High quality joystick, dual channel analog outputs for precise positioning, one channel digital output for press control
  • Onboard battery and charge circuitry, powered from battery, also charges the battery through USB connection
  • Battery indicator, blinks 1/2/3/4 times indicates the power remains about 25%/50%/75%/100% respectively
  • 4x colorful buttons
  • 2x side buttons, related to the A/B buttons of micro:bit, easy to use
  • Buzzer for playing music and game background effect
  • Comes with development resources (micro:bit graphical demo/python code/user manual, etc.)

Specifications

  • Operating voltage: 5V
  • Battery type: 14500 Li-ion
  • Dimension: 150mm x 50mm

Pinouts

SYMBOLPINDESCRIPTION
A5Button A
B11Button B
C15Button C
D14Button D
E13Button E
F12Button F
X1Joystick X axis
Y2Joystick Y axis
P8Joystick press
Buzzer0Buzzer

Dimensions

Development Resources

Wiki : www.waveshare.com/wiki/Joystick_for_micro:bit

R199.90  Inc VAT
Eight channel 5V DC Relay Module (8 channel relay)

Description:

This is an eight channel 5V DC relay module with active low. It can be controlled by variety of microcontrollers such as Arduino, Raspberry Pi, PIC, DSP, AVR or ARM etc.

  • Has the ability to control eight separate appliances or pieces of equipment
  • Eight on-board optoisolators enable direct interfacing to microcontrollers
  • Eight red LED status lights on-board show relay activity
  • Widely used in PLC control or smart home control
  • 4 x M3 mounting holes for easy fixing via standoffs

Specifications:

  • 15-20mA drive current needed per channel
  • Relay coil maximum operating voltage: 5V
  • Relay coil maximum current: 89.3mA
  • Relay contact maximum: AC250V at 10A or DC30V at 10A
  • No. of relays/channels: 8
  • Item size: 134 x 55 x 20mm
  • Item weight: 116g

Contents:

  • 1 x 8 Channel Relay Module

Resources:

 

Warning
Exercise proper caution when connecting mains driven equipment or appliances to relay module as lethal current will be present.

R124.90  Inc VAT
Four channel 5V DC Relay Module (4 channel relay)

Description:

Use this relay board with your Arduino, Raspberry Pi or your custom micro-controller projects!

Specifications:

  • Each Relay has LED indication when ON
  • SPDT Relays with terminal block outputs.
  • Relay Coil voltage: 5 VDC
  • Power Requirement: 5 VDC
  • 10A 250V AC / 10A 30V DC

Contents:

  • 1 x Four channel 5V DC Relay Module

Resources:


R72.90  Inc VAT
8-Channel 3.3V to 5V Voltage Converter Module for Raspberry Pi - Blue (8ch blue convert sensor)
Raspberry Pi and jumper cables are not included.

Highlights:

- Mutual conversion between 3V and 5V, It's convenient for PI connected to external 5V sensors or modules

- Supports total of 8 channels

- Range of voltage converted: 1.8V~6VDC

How to Use:
In the case of translating between 3.3V and 5V system:
VCCA connects to 3.3V power supply
VCCB connects to 5V power supply
GND connects to power negative pole respectively, the two power supply should be common-grounded with each other
When Ax has 3.3V input, Bx will get 5V output
When Bx has 5V input, Ax will get 3.3V output
NO direction control required
R44.90  Inc VAT
MB102 Breadboard Power Supply Module (BB power supply)
ModelI061806
Quantity1
ColorBlack
MaterialPCB
FeaturesInput voltage: 6.5~12 V (DC) or USB power supply; Output voltage: 3.3V / 5V switchable; Maximum output current: <700 mA; Two ways individual control: 0V / 3.3V switchable
ApplicationSuitable for MB102 breadboard
OtherFor Arduino/Raspberry Pi/Electronic DIY projects
Packing List1 x Power supply module

Dimensions: 2.09 in x 1.26 in x 0.39 in (53 mm x 32 mm x 10 mm)
Weight: 1.62 oz (46 g)

Quick video available on a similar MB-102 power supply at https://www.youtube.com/watch?v=ZpCep1jL-iA


R21.90  Inc VAT
37-in-1 Sensor Module Kit (C1 37-in-1 sensor kit)

Use this kit as inputs for sensing and outputs for reporting in your projects.

We found a nice tutorial that covers most of the sensors here

Packing List

1 x XY JoyStick
1 x Relay
1 x Big Sound
1 x Small Microphone
1 x Tracking
1 x Avoid
1 x Flame
1 x Linear Hall
1 x Touch
1 x Digital Temperature
1 x Buzzer
1 x Passive Buzzer
1 x RGB LED
1 x SMD RGB
1 x 2-Color LED
1 x 2-Color
1 x Reed Switch
1 x Mini Reed
1 x Heartbeat
1 x 7 Color Flash
1 x Laser
1 x Button
1 x Shock
1 x Rotary Encoders
2 x Magic Cup
1 x Tilt Switch
1 x Ball Switch
1 x Photo resistor
1 x Temp and Humidity
1 x Analog Hall
1 x Hall Magnetic
1 x TEMP
1 x Analog Temp
1 x IR Emission
1 x IR Receiver
1 x Tap module
1 x Light Blocking

We found this article explaining what the sensors are used for: http://www.instructables.com/id/Arduino-37-in-1-Sensors-Kit-Explained/?ALLSTEPS
Use this kit as inputs for sensing and outputs for reporting in your projects.
R329.90  Inc VAT
AM2302 DHT22 Temperature And Humidity Sensor Module (DHT22 temp/humid)

Features:

AM2302 Humicap digital temperature and humidity module is a digital output signal containing a calibrated temperature and humidity combined sensor. It uses dedicated digital module capture technology and temperature and humidity sensor technology to ensure that products has high reliability and excellent long-term stability. Sensor includes a capacitive humidity sensing element and a high-precision temperature measurement device, and with a high-performance 8-bit microcontroller connected. Therefore, the product has excellent quality, fast response, anti-interference ability, low cost and other advantages. Ultra-small size, low power consumption, signal transmission distance up to 20 meters. Making it the best choice for all kinds of applications and even the most demanding applications.

Applications:

HVAC (Heating Ventilation Air Conditioning), dehumidifiers, testing and inspection equipment, consumer goods, automotive, automation, data loggers, home appliances, humidity regulator, medical,weather stations, and other related humidity detection control.

Specification:

Dimensions: 40 x 23mm
Weight: 4g
Voltage: 5V
Port: digital two-way single bus
Temperature range: -40 to 80 °C ± 0.5 °C
Humidity: 20 to 90% RH ± 2% RH
Platform: Arduino, SBC

Package includes:

1 x Sensor Module


How to setup a DHT22 with your Raspberry Pi

R89.90  Inc VAT
BMP180 Digital Barometric Pressure Sensor Board Module (Barometric sensor)

Product information
This digital barometer has some interesting applications. By measuring the absolute pressure of the environment and converting this into altitude. you will have a reliable sensor for determining the height of your robot, plane or projectile. This sensor is capable of achieving an accuracy of 1m, with noise of only 17cm in ultra-high resolution. The device will operate at only 0.3uA meaning low current draw for battery powered applications.

Specifications
1.8V to 3.6V Supply Voltage
Low power consumption - 0.5uA at 1Hz
I2C interface
Max I2C Speed: 3.5 MHz
Very low noise - up to 0.02hPa (17cm)
Fully calibrated
Pressure Range: 300hPa to 1100hPa (+9000m to -500m)
Weight: 1.18g
Size: 21mm x 18mm

Package includes
1 x BMP180 Digital Barometric Pressure Sensor Board Module
1 x Male to Male 4 pin header

Using the BMP180 with Raspberry Pi

R49.90  Inc VAT
L9110S H Bridge Stepper Motor Dual DC Driver Controller Module (L9110S small H Bridge)

Description:

There are two L9110S motor controller chips onboard
This module can simultaneously drive two DC motors or a 4-wire 2-phase stepper motor

Feature:

Work under low static current
Power supply voltage: DC 2.5V - 12V
Each channel has 800mA continuous current output
Low saturation pressure drop
TTL / CMOS output level compatible, can be connected directly to the CPU
Output built-in clamping diode, apply to the perceptual load
Control and drive integrate in IC
Pin high pressure protection function
Working temperature: 0°C - 80°C
Size: 29 x 21mm(L x W)

Circuit diagram:

 


Package includes:

  1x L9110S stepper motor driver

Robot control with Python

This module can simultaneously drive two DC motors or a 4-wire 2-phase stepper motor
R38.90  Inc VAT
One way Solid State Relay Module (Solid state relay single)
Description:

5V Omron solid state relays 240V / 2A, output with resistive fuse 240V / 2A.
Dimensions: 25x34x25 (length x width x height)
Input Power: 5VDC
Control signal input voltage: (0-2.5V low state relay ON) (3-5V state high relay OFF)

Feature:

Voltage:5V
Quiescent current: 0 mA
Operating current: 12.5mA
Trigger Voltage: 3.3-5V
Trigger current: 2mA
DC +: positive power supply (according to the relay voltage supply)
DC-: negative power supply
CH1: relay module signal triggering end (low to trigger active)

Package included:

1 x One way Solid State Relay Module

Relay tutorial for Raspberry Pi
R69.90  Inc VAT
ESP8266 ESP-12F Remote Serial Port WIFI Transceiver Wireless Module (ESP-12F Wireless Module)
Description: 
 
ESP-12F: breakthrough design. The new four-layer board design, the new revision antenna RF performance optimization, compared to the communication from the ESP-12E increased by 30% to 50%! Semi-hole chip technology, the whole IO leads, with metal shielding shell, has passed FCC & CE & RoHS certification, built-board PCB antenna, 4M bytes Flash.
 
Compatible with Adapter plate - not included

Note:
 
We can not offer any support at this stage on this item, sorry for the inconvenience.
 
Package includes:
 
1 x ESP8266 ESP-12F Remote Serial Port WIFI Transceiver Wireless Module

Resources:

Wikipedia
espressif resources
R59.90  Inc VAT
Mini Joystick Module (Mini Joystick Module 4B2)
Description:

This is PSgame joystick module.
Lots of control projects need joysticks. This module provides an affordable solution to that. Simply connect to two analog inputs, the robot is at your commands with X,Y control. It also has a switch that is connected to a digital pin. This joystick module can be easily connect to a micro controller via normal GPIO with jumper cables.
No soldering required, Reusable for prototyping or design applications of electronic circuits, modify or revise the circuits easily.
Accept resistors,transistors, diodes, LEDS, capacitors and other types of electronic components.
An invaluable tool for experimenting with circuit designs.
Directional movements are simply two potentiometers - one for each axis
Compatible with Arduino interface
Brand: KEYES
Model: KY-023

Specifications:

Three axis (X,Y,Z and button)
Size:37x25x32mm
Weight: 15 g
Tie-point 700
ABS plastic material
Completely reusable
Phosphor bronze nickel plated spring clips
Accepts a variety of wire sizes(29-20 AWG)

Package includes:

1 x PS2 joystick module

Getting started
R17.90  Inc VAT
DC-DC Step Down Power Supply Adjustable Module With LCD Display With Case (step down convert and case)





Specifications:


Converter type: DC-DC
Input voltage: 5~23V (Best voltage 20V)
Output voltage: 0V~16.5V (Continuously adjustable)
Peak current: 3A
Mainboard size: 50mm x 30mm x 12mm(LxWxH)
Display module: STN LCD
LCD size: 37.5mm x 17.0mm(LxW)
LCD accuracy: 1%
Conversion efficiency: 95%
Load regulation S(I): <= 0.8%
Voltage regulation S(U): <= 0.8%

Calibration method:

Under power off situation, Holding left button and power the supply,when the  display begin flashing, release left button, with multimeter measuring the output voltage, by pressing the left and right button ,adjust the multimeter measuring voltage to near 5V, such as 5.00V ,4.98V or 5.02V,at this stage, please ignore the display on this item. After adjustment,please power it off and then power on again, calibration is completed. Errors can be calibrated in 0.04V, if the error is greater, you can try to re-calibrate it again.

Package includes:

1 x DC-DC step-down power suppl module
1 x Transparent shell
R189.90  Inc VAT
KY-022 Infrared Sensor Receiver Module (IR receiver board)
Description:

Infrared receiving module adopts 1838 infrared receiving head
Light resistance, strong electromagnetic interference, built-in infrared dedicated IC, can work under 500 lux light intensity
Widely used in remote control toys, satellite receivers, air conditioner, heater, electric fan, lighting and other home appliances.

Specifications:

Dimension: 6.4 x 7.4 x 5.1mm
Receiving angle: 90 °
Working voltage: 2.7 ~ 5.5V
Frequency: 37.9KHz
Receiving range: 18m

Package includes:

1 x Infrared sensor receiver module

Wiki
R34.90  Inc VAT
TEA5767 FM Stereo Radio Module 76-108MHZ For Arduino With Antenna (FM receiver module)
Features:

Frequency range from 76-108MHZ automatic digital tuning.
High sensitivity, high stability, low noise, radio module.
A low-power electro-tuning FM stereo radio circuit, which integrates the IF frequency selection and demodulation network.
High sensitivity (Using low noise RF input amplifier)
High-gain automatic gain control (AGC) circuit
LC tuned oscillator fixed chip.

Specifications:

Board size: 31 x 30 mm
With a power reverse-protection diode
Board comes with power output filter inductor
Multiple capacitor combination filter
Blue power indicator
You can directly pull and plug the antenna port
I2C bus communication
FM radio TEA5767 dedicated chip module
Onboard headphone amplifier chip TDA1308 for audio amplification
Onboard 3.5mm audio interface, can be directly connected to headset amplifier
If connected with single chip, only need to connect the power ground and two I2C communication lines

Package includes:

1 x TEA5767 Radio Module

Instructable
Create your own little Arduino FM radio using this receiver
R209.90  Inc VAT
Wemos® Lolin ESP32 + WiFi + Bluetooth Dual ESP-32 ESP-32S ESP8266 OLED Module (ESP32 with OLED display)
Description:
 
ESP32 is already integrated with antenna and RF, power amplifier, low noise amplifiers, filters and the power management module.
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

Package includes:

1 x Wemos® Lolin ESP32 OLED Module

R299.90  Inc VAT
MQ-3 Alcohol Ethanol Sensor Breath Gas Detection Module (MQ3 alcohol sensor orange)
Description:

The main chip: LM393, MQ-3 gas sensor
Operating voltage: DC3-5V
Response time: ≤10s (70% Response)
Recovery time: ≤30s (70% Response)
Heating resistance: 31Ω±3Ω
Heating Current: ≤180mA
Heating Voltage: 5V±0.2V
Heating Power: ≤900mW
detect Voltage: ≤15V
Ambient Temperature: -10℃ to 65℃,
Humidity: ≤95%RH
Storage conditions: Temperature:-20℃-70℃,Humidity:≤ 70%RH

Features:

Signal output instructions:
Dual signal output (analog output, and TTL level output);
TTL output valid signal is low, can be connected directly to the microcontroller;
0 ~ 5V analog output voltage, the higher the concentration the higher the voltage;
Has a high sensitivity and good selectivity to ethanol vapor;
Has a long life and reliable stability;
Rapid response recovery characteristics;

Applications:

For motor vehicle drivers and other non-drinking and operating personnel on-site testing, also used in other places of ethanol vapor detection, detection of alcohol: detection range of 10 to 1000ppm

Package includes:

1 X Alcohol sensor module

Analog to Digital converter not included
Wiki
R59.90  Inc VAT
9Pcs MQ2 MQ-3 MQ-4 MQ-5 MQ-6 MQ-7 MQ-8 MQ-9 MQ-135 Sensor Module kit (gas sensor kit)
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.

Feature:
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.

Module Features:
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.

Module Features:
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.

Module Features:
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

Module Features:
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.

Module Features:
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.

Package includes:

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
1 x 20pcs 20cm male to female jumper cable
1 x 20pcs 20cm female to female jumper cable

Analog to digital converter not included
Configure and read MQ-x gas sensor
R362.15  Inc VAT
Four Way Solid State Relay Module (solid relay 4 red)
Description:

5V Omron solid state relays 240V / 2A, output with resistive fuse 240V / 2A.
Dimensions: 57x55x25 (length x width x height)
Input Power: 5VDC
Control signal input voltage: (0-2.5V low state relay ON) (3-5V state high relay OFF)

Features:

Voltage:5V
Quiescent current: 0 mA
Operating current: 12.5mA
Trigger Voltage: 3.3-5V
Trigger current: 2mA

DC +: positive power supply (according to the relay voltage supply)
DC-: negative power supply
CH1: relay module signal triggering end (high to trigger active)
CH2: relay module signal triggering end (high to trigger active)
CH3: relay module signal triggering end (high to trigger active)
CH4: relay module signal triggering end (high to trigger active)

Package includes:

1 x Four way Solid State Relay Module

Python Code
R229.90  Inc VAT
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