Sensors

Sensors
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Create your own little Arduino FM radio using this receiver
R209.90  Inc VAT
IR - Infrared Receiver (TSOP38238) (TSOP 38238 infrared receiver)

Description:

IR (Infrared) sensor tuned to 38KHz, perfect for receiving commands  from a TV remote control. Runs at 3V to 5V so it's great for use on the  Raspberry Pi!

To use, connect pin 3 (all the way to the right) to  5V power, pin 2 (middle) to ground and listen on pin 1. It doesn't do  any decoding of the signal, just passes the 'raw data' along.

Specifications:

  • Carrier Frequency: 38kHz
  • Transmission Range: 45m
  • Directivity: 45°
  • Supply Voltage Min: 2.5V
  • Supply Voltage Max: 5.5V
  • Supply Current: 350µA
  • Opto Case Style: Through Hole
  • Operating Temperature Min: -25°C
  • Operating Temperature Max: 85°C
  • Packaging: Each
  • Operating Temperature Range: -25°C to +85°C
  • SVHC: No SVHC (16-Dec-2013)
  • Supply Voltage Range: 2.5V to 5.5V
  • Manufacturer: VISHAY MINICAST AGC2

Contents:

  • 1x Infrared Receiver

Resources:


R14.90  Inc VAT
HC-SR04 Ultrasonic Sensor Distance Measuring Module (sensor ultrasonic blue)
- Model: HC-SR04
- Color: Blue + Silver
- Working voltage : 5V(DC)
- Static current: Less than 2mA.
- Output signal: Electric frequency signal, high level 5V, low level 0V.
- Sensor angle: Not more than 15 degrees.
- Detection distance: 2cm~450cm.
- High precision: Up to 3mm
- Mode of connection: VCC / trig(T) / echo(R) / GND
- Module Working Principle:
- Adopt IO trigger through supplying at least 10us sequence of high level signal
- The module automatically send eight 40khz square wave and automatically detect whether it receive the returning pulse signal

A good tutorial available at ModMyPi.
http://www.modmypi.com/blog/hc-sr04-ultrasonic-range-sensor-on-the-raspberry-pi
Read the Docs
R29.90  Inc VAT
Soil Hygrometer Humidity Detection Moisture Sensor (moisture probe hygrometer)

This is a summary of the soil moisture sensor that can be used to detect moisture, when the soil is dry, the module outputs a high level. Use this sensor to build an automatic watering system.


Operating voltage: 3.3V~5V.
Adjustable sensitivity (blue digital potentiometer adjustment)
Dual output mode,analog output more accurate.
A fixed bolt hole for easy installation.
Power indicator (red) and digital switching output indicator (green).
LM393 comparator chip, stable.
PCB Dimension: 3cm x 1.5cm.
Soil Probe Dimension: 6cm x 2cm.
Cable Length: 21cm.

VCC: 3.3V-5V.
GND: GND.
DO: digital output interface (0 and 1).
AO: analog output interface.

Setup with Raspberry Pi

Package Includes:

1 x Soil moisture detector module
1 x Probe
5 x Jumper Cables

R21.90  Inc VAT
DHT11 Temperature and Relative Humidity Sensor Module (DHT11 temp/humid)

Product information
This module can detect humidity and temperature of the surrounding environment. Outputs a digital signal. Has a mounting hole for easy installation. Includes 3 DuPont wires to interface to microcontroller.

Specifications
Humidity measurement range: 20%~90% RH
Humidity measurement error: ±5% RH
Temperature measurement range: 0~60 Cƒ
Working voltage: 5V
Size: 28 x 12 x 8mm

Package includes
1 x DHT11 Temperature and Relative Humidity Sensor Module

How to setup a DHT11 with your Raspberry Pi

R39.90  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
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
Sound Detection Sensor LM393 Chip (sensor sound detection)

Can be used for Acoustic control light; give sound and light alarm working with Photosensitive sensor
Note:The Maximum induction distance is 0.5M

Features
 
  • Main Chip: LM393, Electret condenser microphone
  • Working Voltage: DC 4-6V
  • Signal output indication
  • Single channel signal output
  • The output effective signal is low level
  • When there is sound,output low level and the signal lights
Find help with this sensor at https://www.instructables.com/id/Sound-Sensor-Raspberry-Pi/
R15.90  Inc VAT
Liquid Water level sensor Side Mounted Float Switch (liquid level side mounted)

The liquid level switch detects the rising level of liquid in a sump or tank. It can be connected to a micro controller. It can then be used to start/stop a pump which then pumps liquid in/out until the level of the liquid has been restored to the point where the pump is switched off again. The switch may be used in a pump station, a sensor, a tank alarm, or other devices.

 

Specification:

Contact Rating: 10W

Switching Voltage: 220V

Switching Current: 0.5A

Breakdown Voltage: 220VDC

Carry Current: 1.0A

Contact Resistance: 100mohm


Resources:

Python library
Introduction to Buttons and Switches
Types of buttons and switches

 

R39.90  Inc VAT
Hall Water Flow Sensor Flowmeter Water Control 2MPa (flow sensor)
Description:

This product is mainly used for water metering
High amplitude ≥ 4.6V
Low amplitude ≤ 0.5V
Electric strength 1250V/min
Insulation resistance ≥ 100MΩ
Hydrostatic pressure testing ≤ 2.0Mpa

Specification:

The lowest rated working voltage: DC4.5 5V-24V
Maximum operating current: 15 mA (DC 5V)
Working voltage range: DC 5~18 v
Load capacity: ≤ 10 mA (DC 5V)
Use temperature: ≤ 80°C
Operating humidity range: 35%~90%RH (no frost)
Allowing pressure: pressure 2.0Mpa
Temperature: -25~+80 °C
External threads: 1/2"
Outer diameter: 20mm
Intake diameter: 9mm
Outlet diameter: 12mm

Application:

Water heaters, water vending machines, flow measurement

Package included:

1x Water flow sensor

Flow sensor Wiki
An instructable on how to use the Flow Sensor with Arduino
Adafruit experiment connecting the Flow Sensor to a Raspberry Pi

https://www.ardumotive.com/water-flow-sensor-en.html

RPi: https://www.youtube.com/watch?v=8JXd-2_zJQ0

R85.90  Inc VAT
MS Weather Station Rain Gauge (MS Rain Gauge)
MS rain gauge as used in the Raspberry Pi foundation weather station project to measure rainfall.
Hack this component to form part of your weather station.

View the project details here

And some more help here

Article specific to the rain gauge only
R259.90  Inc VAT
DC 5V Waterproof Ultrasonic Module Distance Measuring Transducer Sensor (waterproof ultrasonic)
Specifications:

Operating voltage: DC 5V
Total current work: 40mA
Acoustic emission frequency: 40khz
Maximumdistance: 4.5m
Blind: 25cm

Wiring:
+ 5V (positive power supply)
Trig (control side) RX
Echo (the receiver) TX
GND (negative)

Resolution: about 0.5cm
Angle: 70 degrees
Working temperature: -10 ~ 70 ℃
Storage temperature: -20 ~ 80 ℃

Product Features:

- small size, easy to use;
- low voltage, low power consumption;
- high accuracy;
- strong anti-jamming;
- integrated with wire enclosed waterproof probe, suitable for wet, harsh measuring conditions.

Application:

1 Horizontal distance;
2 obstacle avoidance, automatic control;
3 traffic control;
4 security, industrial control;
5 artificial intelligence, and research

Basic working principle:
(1) using IO port TRIG trigger location, to the high level signal of at least 10us;
(2) module automatically sends 8 40KHz pulse, automatic detecting whether a signal returns;
(3) on signal return, a high level is output through the IO port ECHO, the time duration of the high level is ultrasonic from launch to return. The test distance = (high level time * speed of sound (340M/S)) /2;

Usage

Package Includes:

1 x DC 5V Waterproof Ultrasonic Module Distance Measuring Transducer Sensor
R199.90  Inc VAT
5V TCRT5000 Infrared Line Tracking Sensor Module (line track sensor)
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

Package includes:

1 x Tracking Sensor Module

Build A Line-following robot
R24.90  Inc VAT
SparkFun Logic Level Converter Bi-Directional (Sparkfun logic level converter )

If you’ve ever tried to connect a 3.3V device to a 5V system, you know what a challenge it can be. The SparkFun bi-directional logic level converter is a small device that safely steps down 5V signals to 3.3V AND steps up 3.3V to 5V at the same time.

This level converter also works with 2.8V and 1.8V devices. What really separates this Logic level converter from our previous versions is that you can successfully set your high and low voltages and step up and down between them safely on the same channel. Each level converter has the capability of converting 4 pins on the high side to 4 pins on the low side with two inputs and two outputs provided for each side.

The level converter is very easy to use. The board needs to be powered from the two voltages sources (high voltage and low voltage) that your system is using. High voltage (5V for example) to the ‘HV’ pin, low voltage (3.3V for example) to ‘LV’, and ground from the system to the ‘GND’ pin.

Dimensions: 0.63 x 0.52" (16.05 x 13.33mm)

Documents:

R59.90  Inc VAT
Analog Ceramic Piezo Vibration Sensor (ceramic vibration sensor)
Specifications:

Working Voltage: 3.3V or 5V
Working Current: <1mA
Operating Temperature Range: -10 ~ + 70
Interface Type: Analog Output
Item Size: 30mm x 23mm
GPIO: S; signal output, +; power supply (VCC), -; ground (GND)
Input: Positive electrode of the piezoelectric ceramic
GND: Negative electrode of the piezoelectric ceramic


Package includes:

1 x Ceramic Piezo Vibration Sensor
R29.90  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
Tank Float Switch Water Level Controller Sensor (Tank Float switch)
Specifications:

Shape: Square
Contacts: NO+NC
Rated voltage: 250V(380V)
Rated current: 8A(4A)
Working temperature: 0℃<=water temperature<=65℃
Mechanical endurance: ≥100,000times
Electrical endurance:≥50,000times
Cable length: 1.9m / 74"
Environment: pool, water tank/dam
Control level difference > 40cm

Features:

Easy to use, easy to install,
Safe, reliable, maintenance-free, non-toxic and environmentally friendly.

Package includes:

1 x Float Switch Liquid Level Controller Sensor
R379.90  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
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