Rain Drop Sensor Module

 129.00

The rain sensor module is an easy tool for rain detection. It can be used as a switch when raindrop falls through the raining board and also for measuring rainfall intensity. The module features a rain board and a control board that are separated for the ease of convenience, power indicator LED and adjustable sensitivity by way of a potentiometer. The analog output is used in measuring the amount of rainfall. Connected to 5V power supply, the LED will turn on when induction board has no rain drop, DO output is HIGH. When dropping a little amount of water, DO output turns LOW, the switch indicator will turn on! Brush off the water droplets, and when restored to the initial state, the output jumps back to HIGH. 
 

Features:

• Driving capability of 100 mA, enabling it to drive relays, buzzers, small fans and more
• LED indicators for power and output signal
• Adjustable sensitivity via potentiometer
• Nickel Coated Sensor Board with 0.5 micron casing for longer life and to prevent corrosion and oxidation

Specifications

• Adopts high quality RF-04 double sided material. 
• 5cm x 4cm nickel plate
• Anti-oxidation, anti-conductivity, with long use time
• Comparator output - Clean output waveform is good, with driving ability over 15mA
• Potentiometer-adjustable sensitivity
• Working voltage: 5V
• Uses a wide voltage range LM393 comparator
• Output format: Digital binary and Analog Output AO
• Bolt holes for easy installation
• Small PCB size: 3.2cm x 1.4cm

Flame Sensor

 249.00

A flame detector is a sensor designed to detect and respond to the presence of a flame or fire, allowing flame detection A flame detector can often respond faster and more accurately than a smoke or heat detector due to the mechanisms it uses to detect the flame.

MQ6 Smoke Module

 199.00

Sensitive material of MQ-2 gas sensor is SnO2, which with lower conductivity in clean air. When the target combustible gas exist, the sensor’s conductivity is higher along with the gas concentration rising. Please use simple electro circuit, Convert change of conductivity to correspond output signal of gas concentration. MQ-2 gas sensor has high sensitivity to LPG, Propane and Hydrogen, also could be used to Methane and other combustible steam, it is with low cost and suitable for different application.

Features:
•    Operating Voltage is +5V
•    Can be used to Measure or detect LPG, Alcohol, Propane, Hydrogen, CO and even methane
•    Analog output voltage: 0V to 5V
•    Digital Output Voltage: 0V or 5V (TTL Logic)
•    Preheat duration 20 seconds
•    Can be used as a Digital or analog sensor
•    The Sensitivity of Digital pin can be varied using the potentiometer

Relay Module (2 Channels)

 119.00

A relay is defined as an electrically operated switch; their main use is controlling circuits by a low-power signal or when several circuits must be controlled by one signal.

MQ5 Methane Liquified Gas Sensor

 199.00

The Grove -Gas Sensor(MQ5) module is useful for gas leakage detection (in home and industry). It is suitable for detecting H2, LPG, CH4, CO, Alcohol the detection of certain components in the air usually requires a more precise and costly instrument, which cannot be done with a single gas sensor.

Temperature Sensor LM35

 99.00

LM35 is a precision IC temperature sensor with its output proportional to the temperature (in ^oC). The sensor circuitry is sealed and therefore it is not subjected to oxidation and other degrading processes. With LM35, temperature can be measured more accurately than with a thermistor although not the same range(s). It also possesses low self-heating protection and does not cause more than 0.1 ^oC temperature rise in still air.

The operating temperature range is from -55°C to 150°C. The output voltage varies by 10mV in response to every ^oC rise/fall in ambient temperature i.e. its sennsitivity factor is 0.01V/ ^oC.

Features:

• Calibrated Directly in Celsius (Centigrade)
• Linear +/- 10mV/°C Sensitivity
• +/-0.5°C ensured Accuracy (at 25°C)
• Rated for full −55°C to 150°C Operating Range
• Suitable for Remote Applications
• Low-Cost due to wafer-level Trimming
• Operates from 4V to 30V
• Less than 60µA Current Drain
• Low Self-heating, 0.08°C in Still Air
• Non-Linearity as low as ¼°C Typical
• Low-Impedance Output - 0.1 for 1mA Load

MQ3 Alcohol Sensor Module

 199.00

MQ-3 module is suitable for detecting Alcohol, Benzene, CH4, Hexane, LPG, CO. Sensitive material of MQ-3 gas sensor is SnO2, which with lower conductivity in clean air. When the target alcohol gas exist, the sensor’s conductivity is higher along with the gas concentration rising. MQ-3 gas sensor has high sensitivity to Alcohol, and has good resistance to disturb of gasoline, smoke and vapor.
This sensor provides an analog resistive output based on alcohol concentration. When the alcohol gas exist, the sensor’s conductivity gets higher along with the gas concentration rising.

There is a resistance across an A and B inside the sensor which varies on detection of alcohol. More the alcohol, the lower will be the resistance. The alcohol is measured by measuring this resistance. The sensor and load resistor form a voltage divider, and the lower the sensor resistance, the higher the voltage reading will be.

Features of MQ-3 Alcohol Sensor:
•    Sensor Type - Semiconductor
•    Easy SIP header interface
•    Compatible with most of the microcontrollers
•    Low-power standby mode
•    Requires heater voltage
•    Good sensitivity to alcohol gas
•    Fast response and High sensitivity  
•    Long life and low cost
•    Requires simple Drive circuit

LDR Module

 69.00

Light Dependent Resistor (LDR) Module is a component that is sensitive to light. When light falls upon it then the resistance changes. It is used to detect the presence of light therby measuring the intensity of light. Values of the resistance of the LDR may change rapidly as the light intensity increases and decreases. With such a wide variation in resistance, LDRs are easy to use and there are many circuits available around it. The output of the module goes high in the presence of light and it becomes low in the absence of light. The sensitivity of light detection can be adjusted using the provided potentiometer.

SPECIFICATIONS:

• Operating Voltage: 3.3V to 5V DC
• Operating Current: 15mA
• LEDs indicating output and power
• LM393 comparator based design for cleanly latched outputs
• Output Digital - 0V to 5V, Adjustable trigger level using the preset
• Output Analog - 0V to 5V based on light falling on the LDR

MQ7 CO Sensor Module

 219.00

This Carbon Monoxide (CO) gas sensor detects the concentrations of CO in the air and outputs its reading as an analog voltage. The sensor can measure concentrations of 10 to 10,000 ppm. The sensor can operate at temperatures from -10 to 50°C and consumes less than 150mA at 5V. This semiconductor gas sensor detects the presence of Carbon Monoxide at concentrations from 10 to 10,000 ppm. The sensor’s simple analog voltage interface requires only one analog input pin from your microcontroller.

Features:
•    5V operation
•    Simple to use
•    LEDs for output and power
•    Output sensitivity adjustable
•    Analog output 0V to 5V
•    Digital output 0V or 5V
 

Humidity Sensor Module

 149.00

Humidity is the presence of water (dampness) in the air/ body (say, soil) around. The amount of water vapor in air affects human comfort, working/ efficiency of medicines, injectables, electronic components...as well as a number of manufacturing processes cutting across industries...The presence of water vapor influences various physical, chemical and biological processes.

Humidity measurement in industries is critical because it may affect the business cost of the product, storage & transportation as well as the health and safety of the personnel handling the same. Humidity sensing becomes very important in the control systems too.

Features:

• Relative Humidity sensor
• Two-stage calibration with capacitor-type sensor, excellent performance
• Frequency output type, can be easily integrated with user application systems
• Very low power consumption
• No extra components needed

 
Applications:

• HVAC
• Automotive
• Consumer Goods
• Weather Stations
• De-humidifiers
• Humidifiers
• Test & Measurement
• Data Logging
• Automation
• White Goods
• Medical

MQ135 Air Quality Sensor Module

 219.00

Air quality sensor is used for detecting a wide range of gases, including NH3, NOx, alcohol, benzene, smoke and CO2. It is Ideal for use in office or factory. MQ135 gas sensor has high sensitivity to Ammonia, Sulfide and Benze steam, also sensitive to smoke and other harmful gases. It is with low cost and particularly suitable for Air quality monitoring application.

Features:

• Wide detecting scope
• Fast response and High sensitivity
• Stable and long life
• Operating Voltage is +5V
• Detect/Measure NH3, NOx, alcohol, Benzene, smoke, CO2, etc.
• Analog output voltage: 0V to 5V
• Digital output voltage: 0V or 5V (TTL Logic)
• Preheat duration 20 seconds
• Can be used as a Digital or analog sensor
• The Sensitivity of Digital pin can be varied using the potentiometer

Soil Moisture Sensor Module

 129.00

This sensor can be used to test the moisture of soil, when the soil is having water shortage, the module output is at high level, and else the output is at low level. By using this sensor one can automatically water the flower plant, or any other plants requiring automatic watering technique. Module triple output mode, digital output is simple, analog output more accurate, serial output with exact readings.

Features:
•   Sensitivity adjustable. 
•    Has fixed bolt hole, convenient installation. 
•    Threshold level can be configured. 
•    Module triple output mode - Digital output, Analog output more accurate, Serial output with exact readings.. 

Specifications:
Parameter :Value 
Operating Voltage :5V dc regulated 
Soil moisture :Digital value is available on the 'Out' pin

Raspberry Pi 3 Model B+

 3490.00

The Raspberry Pi 3 Model B+ is the latest product in the Raspberry Pi 3 range, boasting a 64-bit quad core processor running at 1.4GHz, dual-band 2.4GHz and 5GHz wireless LAN, Bluetooth 4.2/BLE, faster Ethernet, and PoE capability via a separate PoE HAT. The dual-band wireless LAN comes with modular compliance certification, allowing the board to be designed into end products with significantly reduced wireless LAN compliance testing, improving both cost and time to market. The Raspberry Pi 3 Model B+ maintains the same mechanical footprint as both the Raspberry Pi 2 Model B and the Raspberry Pi 3 Model B.

SPECIFICATIONS INCLUDE

•    Broadcom BCM2837B0, Cortex-A53 (ARMv8) 64-bit SoC @ 1.4GHz
•    1GB LPDDR2 SDRAM
•    2.4GHz and 5GHz IEEE 802.11.b/g/n/ac wireless LAN, Bluetooth 4.2, BLE
•    Gigabit Ethernet over USB 2.0 (maximum throughput 300 Mbps)
•    Extended 40-pin GPIO header
•    Full-size HDMI
•    4 USB 2.0 ports
•    CSI camera port for connecting a Raspberry Pi camera
•    DSI display port for connecting a Raspberry Pi touch screen display
•    4-pole stereo output and composite video port
•    Micro SD port for loading your operating system and storing data
•    5V/2.5A DC power input
•    Power-over-Ethernet (PoE) support (requires separate PoE HAT)

RFID Reader Module MFRC522

 249.00

A radio frequency identification reader (RFID reader), EM18 in this case, is a device used to gather information from an RFID tag, which is used to track individual objects. Radio waves, of frequency 125KHz., are used to transfer data from the tag to a reader.

It is a technology similar in theory to bar codes. However, the RFID tag does not have to be scanned directly, nor does it require line-of-sight to a reader. The RFID tag it must be within the range of an RFID reader, which ranges from 3 to 300 feet, in order to be read. RFID technology allows several items to be quickly scanned and enables fast identification of a particular product, even when it is surrounded by several other items.

Passive RFID tags have no power of their own and are powered by the radio frequency energy transmitted from RFID readers/antennas. The signal sent by the reader and antenna is used to power on the tag and reflect the energy back to the reader. RFID tags have not replaced bar codes because of their cost and the need to individually identify every item. Here are a few quick facts about RFID.

• RFID does not require a direct line of sight
• RFID tags are able to be rewritten and reused
• RFID tags can be extremely durable against impact and environmental factors
• RFID readers can read hundreds of tags within seconds
• RFID tag data is encrypted and can be locked for extra security
• RFID tags can hold more data than other types of tags or labels
• RFID tags can have information printed on them like instructions, barcodes, or company names
• RFID systems can be integrated with other internal systems or processes

Most RFID systems are made up of the same basic components — a Reader, Antenna, RFID Tags, Cabling, and sometimes additional items or accessories. If it is a mobile handheld like we will be using today, only a handheld reader and an RFID tag will be needed.

PIR Motion Sensor Module

 149.00

PIR sensors allow you to sense motion, almost always used to detect whether a human has moved in or out of the sensors range. They are small, inexpensive, low-power, easy to use and don't wear out. For that reason they are commonly found in appliances and gadgets used in homes or businesses. They are often referred to as PIR, "Passive Infrared", "Pyro electric", or "IR motion" sensors.

Features:

• Infrared Sensor with Control Circuit Board
• The Sensitivity and Holding Time Can be Adjusted
• Blockade time: 2.5s (Default)
• Sensitive Setting: Turn to Right, Distance Increases (About 7M); Turn to Left, Distance Reduce (About 3M)
• Time Setting: Turn to Right, Time Increases (About 200S); Turn to Left, Time Reduce (About 5S).

MQ2 LPG Sensor Module

 249.00

This is a simple-to-use Liquefied Petroleum Gas (LPG) Sensor, suitable for sensing LPG (composed of mostly propane and butane) concentrations in the air. The MQ2 can detect LPG gas concentrations anywhere from 200 to 10000ppm .The sensor's output is a measure of the analog resistance & the ouput across the sensing material, Tin Dioxide (SnO₂).

Flex Sensor

 669.00

Flex sensors are usually available in two sizes. One is 2.2 inch and another is 4.5 inch. Although the sizes are different the basic function remains the same. They are also divided based on resistance. There are LOW resistance, MEDIUM resistance and HIGH resistance types. Choose the appropriate type depending on requirement.  Here we are going to discuss 2.2inch Flex sensor that is FS-L-0055.
FLEX SENSOR

Features and Specifications
•    Operating  voltage of FLEX SENSOR: 0-5V
•    Can operate on LOW voltages
•    Power rating : 0.5Watt (continuous), 1 Watt (peak)
•    Life: 1 million
•    Operating temperature: -45ºC to +80ºC
•    Flat Resistance: 25K 
•    Resistance Tolerance: 30%
•    Bend Resistance Range: 45K to 125K Ohms(depending on bend)
 

Pulse Rate Sensor Module

 349.00

Heart beat sensor is designed to give digital output of heat beat when a finger is placed on it. When the heart beat detector is working, the beat LED flashes in unison with each heartbeat. This digital output can be connected to microcontroller directly to measure the Beats per Minute (BPM) rate.

Features:
•    Biometric Pulse Rate or Heart Rate detecting sensor
•    Plug and Play type sensor
•    Operating Voltage: 5V or 3.3V
•    Current Consumption: 4mA
•    Inbuilt Amplification and Noise cancellation circuit.
•    Diameter: 0.625”
•    Thickness: 0.125” Thick
 

Metal Touch Sensor Module

 199.00

The module is based on a touch sensing IC (TTP223B), a capacitive touch switch module. In the normal state, the module's output is LOW, when a finger touches the sensing area, the module's output turns HIGH. If not touched for 12 seconds, it switches to 'low-power' mode. Jog type: initial state is LOW, touch - HIGH, no touch - LOW again!

This module can be installed with a plastic sheath, on the glass of non-metallic material. In addition to the thin paper (non-metallic) covering the surface of the module, the touch can invoke applications, windows, screens, functions when done on the appropriately right place.

Fetaures:

• Low power consumption
• Power supply for 2 ~ 5.5V DC
• Can replace the traditional touch of a button
• Four M2 screws positioning holes for easy installation

Water Flow Sensor

 369.00

Water flow sensor consists of a plastic valve body, a water rotor, and a hall-effect sensor. When water flows through the rotor, rotor rolls. Its speed changes with different rate of flow. There is an integrated magnetic Hall-Effect sensor that outputs an electrical pulse with every revolution. The output can easily be connected to a microcontroller for monitoring water usage and calculating the amount of water remaining in a tank etc. It measures liquid/water flow for your solar, water conservation systems, storage tanks, water recycling home applications, irrigation systems and much more. 
 

MQ8 Hydrogen Gas Sensor Module

 199.00

A sensitive material MQ-8 Hydrogen Gas Sensor Module H2 Alarm Detection use in clean air low conductivity tin oxide (SnO2). When there is the environment in which the combustible gas sensor, conductivity sensor with increasing concentration of combustible gases in air increases.