Buzzer Small 5V

 19.00

5V PCB Mounting Buzzer is a small PCB (printed circuit board) mountable buzzer. It is very small and compact 2-pin structure hence can be easily used on breadboard, PCBs which makes this a widely used component in most electronic applications. This Buzzer module emits loud sound when 3V to 5V is applied to it. Unlike a plain piezo, this buzzer does not need an AC signal. On one hand, that makes it really great for integrating into projects because you don't need an oscillating control signal. But on the other hand, you cannot change the frequency.
 

Buzzer Big 5V

 29.00

5V PCB Mounting Buzzer is a big PCB (printed circuit board) mountable buzzer. It is very big and compact 2-pin structure hence can be easily used on breadboard, PCBs which makes this a widely used component in most electronic applications. This Buzzer module emits loud sound when 3V to 5V is applied to it. Unlike a plain piezo, this buzzer does not need an AC signal. On one hand, that makes it really great for integrating into projects because you don't need an oscillating control signal. But on the other hand, you cannot change the frequency.
 

Keypad - 4x4

 99.00

This 4×4 Matrix Membrane Keypad provides an easy interface for embedded systems such as an Arduino. The 4×4 keypad has a total of 16 buttons in Matrix form. A 4x4 matrix keypad requires eight Input / Output ports for interfacing is used as an example. Rows are connected to Peripheral Input / Output (PIO) pins configured as output. This 16-button keypad provides a useful human interface component for microcontroller projects. It is made up of a thin, flexible membrane material with an adhesive backing. Convenient adhesive backing provides a simple way to mount the keypad in a variety of applications.

Features: 
•    Ultra-thin design
•    Adhesive backing
•    Excellent price/performance ratio
•    Easy interface to any microcontroller

Key Specifications:
•    Maximum Rating: 24 VDC, 30 mA  
•    Interface: 8-pin access to 4x4 matrix
•    Operating temperature: 32 to 122 °F (0 to 50°C)  

Application Ideas:
•    Security systems
•    Menu selection
•    Data entry for embedded systems

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

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

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.

LEDs - Blue

 99.00

A light-emitting diode (LED) is a semiconductor light source that emits light when current flows through it. Electrons in the semiconductor recombine with electron holes, releasing energy in the form of photons. The color of the light (corresponding to the energy of the photons) is determined by the energy required for electrons to cross the band gap of the semiconductor.

It is pack of 100 LEDs

GPS Module

 699.00

GPS receivers are generally used in smartphones, fleet management system, military etc. for tracking or finding location. Global Positioning System (GPS) is a satellite-based system that uses satellites and ground stations to measure and compute its position on Earth. GPS is also known as Navigation System with Time and Ranging (NAVSTAR) GPS. GPS receiver needs to receive data from at least 4 satellites for accuracy purpose. GPS receiver does not transmit any information to the satellites.The GPS receiver is used in many applications like smartphones, Cabs, Fleet management etc.
 
SPECIFICATIONS:
•    Positional accuracy (CEP50) autonomous positional error less than 2.5 meters
•    SiRF Star IV GPS chip
•    Satellite-based augmentation systems: WAAS, EGNOS, MSAS, GAGAN
•    High sensitivity navigation engine (PVT) tracks as low as –163 dBm
•    Modbus slave device; RS-485 half-duplex serial communications
•    Internal GPS updates once every second
•    Environmental rating: IP69K per DIN 40050
•    Operating temperature of −40 °C to +80 °C (−40 °F to +176 °F)
•    Available with a 2 meter integral cable with flying leads

Wemos D1 R2

 449.00

The ESP8266 is a low-cost Wi-Fi microchip with full TCP/IP stack and microcontroller. The ESP8266 WiFi Module is a self contained SOC with integrated TCP/IP protocol stack that can give any microcontroller access to your WiFi network. The ESP8266 is capable of either hosting an application or offloading all Wi-Fi networking functions from another application processor. The ESP8266 can be controlled from your local Wi-Fi network or from the internet (after port forwarding). The ESP-01 module has GPIO pins that can be programmed to turn ON/OFF LED or a relay ON/OFF through the internet. The module can be programmed using an Arduino/USB-to-TTL converter through the serial pins (RX, TX).

Features:
•    802.11 b/g/n protocol
•    Wi-Fi Direct (P2P), soft-AP
•    Integrated TCP/IP protocol stack
•    Integrated TR switch, balun, LNA, power amplifier and matching network
•    Integrated PLL, regulators, and power management units
•    +19.5dBm  output power in 802.11b mode
•    Power down leakage current of < 10uA  
•    Integrated low power 32-bit CPU could be used as application processor
•    SDIO 2.0, SPI, UART
•    STBC, 1×1 MIMO, 2×1 MIMO
•    A-MPDU & A-MSDU aggregation & s guard interval0.4  
•    Wake up and transmit packets in < 2ms  
•    Standby power consumption of < 1.0mW (DTIM3)
 

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

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

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

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

MQ4 Methane & Natural Gas Sensor Module

 199.00

Structure and configuration of MQ-4 gas sensor is composed of micro AL₂O₃ ceramic tube, Tin Dioxide (SnO₂) sensitive layer, measuring electrode and heater are fixed into a crust made by plastic and stainless steel net. The heater provides necessary work conditions for work of sensitive components. The enveloped MQ-4 has 6 pin, 4 of them are used to fetch signals, and other 2 are used for providing heating current.

MQ-4 Gas Sensor Features:
•    Good sensitivity to Combustible gas in wide range.
•    High sensitivity to CH4, Natural gas.
•    Small sensitivity to alcohol, smoke.
•    Fast response Stable and long life.
•    Simple drive circuit.
 

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
 

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

L293D Motor Driver Shield

 109.00

The L293 and L293D devices are quadruple high-current half-H drivers. The L293 is designed to provide bidirectional drive currents of up to 1 A at voltages from 4.5 V to 36 V. The L293D is designed to provide bidirectional drive currents of up to 600-mA at voltages from 4.5 V to 36 V. Both devices are designed to drive inductive loads such as relays, solenoids, DC and bipolar stepping motors, as well other high-current/high-voltage loads in positive-supply applications.
Each output is a complete totem-pole drive circuit, with a Darlington transistor sink and a pseudo- Darlington source. Drivers are enabled in pairs, with drivers 1 and 2 enabled by 1,2EN and drivers 3 and 4 enabled by 3,4EN. The L293 and L293D are characterized for operation from 0°C to 70°C.

FEATURES:

•    Wide Supply-Voltage Range: 4.5 V to 36 V
•    Separate Input-Logic Supply
•    Internal ESD Protection
•    High-Noise-Immunity Inputs
•    Output Current 1 A Per Channel (600 mA for L293D)
•    Peak Output Current 2 A Per Channel (1.2 A for L293D)
•    Output Clamp Diodes for Inductive Transient Suppression (L293D)

LEDs - Green

 99.00

A light-emitting diode (LED) is a semiconductor light source that emits light when current flows through it. Electrons in the semiconductor recombine with electron holes, releasing energy in the form of photons. The color of the light (corresponding to the energy of the photons) is determined by the energy required for electrons to cross the band gap of the semiconductor.

It is pack of 100 LEDs

SIM 800 GSM Module

 599.00

SIM800 is a quad-band GSM/GPRS module designed for the global market. It works on frequencies GSM 850MHz; EGSM 900MHz, DCS 1800MHz and PCS 1900MHz. SIM800 features GPRS multi-slot class 12/ class 10 (optional) and supports the GPRS coding schemes CS-1, CS-2, CS-3 and CS-4 with a tiny configuration of 24*24*3mm, SIM800 can meet almost all the space requirements in users’ applications, such as M2M, smart phone, PDA and other mobile devices. SIM800 has 68 SMT pads, and provides all hardware interfaces between the module and customers’ boards. SIM800 is designed with power saving technique so that the current consumption is as low as 1.2mA in sleep mode. SIM800 integrates TCP/IP protocol and extended TCP/IP AT commands which are very useful for data transfer applications.
 

Features:

• One USB port can be used as debugging and firmware upgrading
• Audio channels which include a microphone input and a receiver output
• Programmable general purpose input and output
• One SIM card interface
• Support Bluetooth function
• Support one PWM
• PCM/SPI/SD card interface, only one function can be accessed synchronously
• Power supply  3.4V ~ 4.4V
• Typical power consumption in sleep mode is 1.2mA
• Frequency bands GPRS multi-slot class 12
• Support SIM card: 1.8V, 3V
• Serial Port: Can be used for AT commands for data stream
• USB Port: Can be used as debugging and firmware upgrading.

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).

Relay Module (1 relays)

 79.00

A relay is an electrically operated device. It has a control system and (also called input circuit or input contactor) and controlled system (also called output circuit or output cont actor). It is frequently used in automatic control circuit. To put it simply, it is an automatic switch to controlling a high-current circuit with a low-current signal.

The advantages of a relay lie in its lower inertia of the moving, stability, long-term reliability and small volume. It is widely adopted in devices of power protection, automation technology, sport, remote control, reconnaissance and communication, as well as in devices of electro mechanics and power electronics. Generally speaking, a relay contains an induction part which can reflect input variable like current, voltage, power, resistance, frequency, temperature, pressure, speed and light etc. It also contains an actuator module (output) which can energize or de-energize the connection of controlled circuit. There is an intermediary part between input part and output part that is used to coupling and isolate input current, as well as actuate the output. When the rated value of input (voltage, current and temperature etc.) is above the critical value, the controlled output circuit of relay will be energized or de-energized.
NB: input into a relay can be divided into two categories: electrical quantities (including current, voltage, frequency, power etc.) and non- electrical quantities (including temperature, pressure, speed, etc.)

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).

Servo Motor - Metal Gear, 180, MG995

 349.00

Since MG995 is a servo motor providing precise rotation over 180º range its applications are many and amongst them a few are stated below:

• The servo is suited for designing robotic arm in which wear and tear of motor is high. Being metal geared, the servo has long life and can be installed on system like robotic arm were motor work is huge.
   
• The servo is also suited to be used in drones and toy planes. Having a satisfying torque which is enough to overcome air resistance and control wings of plane, the servo is preferred in toy planes and drones which need precision control no matter the condition.

Micro Servo Motor - Metal Gear, 180, MG90

 399.00

MG90S servo, Metal gear with one bearing Tiny and lightweight with high output power, this tiny servo i Helicopter, Quad copter or Robot durability. Servo can rotate approximately 180 degrees (90 in each direction), and works just like the standard kinds but smaller. You can use any servo code, hardware or library to control these servos. Good for beginners who want to make stuff move without building a motor controller with feedback & gear box, especially si (arms) and hardware.

Specifications:

• Weight: 13.4 g

 • Dimension: 22.5 x 12 x 35.5

• Stall torque: 1.8 kgf-cm (4.8V)

• Operating speed: 0.1s/60 degree

• Operating voltage: 4.8 V –

• Dead band width: 5 µs

MG90S servo, Metal gear with one bearing Tiny and lightweight with high output power, this tiny servo i Helicopter, Quad copter or Robot durability. Servo can rotate approximately 180 degrees (90 in each direction), and works just like the standard kinds but smaller. You can use any servo code, hardware or library to control these servos. Good for beginners who want to make stuff move without building a motor controller with feedback & gear box, especially si (arms) and hardware.

Specifications:

• Weight: 13.4 g

 • Dimension: 22.5 x 12 x 35.5

• Stall torque: 1.8 kgf·cm (4.8V)

• Operating speed: 0.1 s/60 degree

• Operating voltage: 4.8 V –

• Dead band width: 5 µs

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)
 

Jumper Wires - M-M

 99.00

Jumper wires are simply wires that have connector pins at each end, allowing them to be used to connect two points to each other without soldering. Jumper wires are typically used with breadboards and other prototyping tools in order to make it easy to change a circuit as needed.Male ends have a pin protruding and can plug into things, while female ends do not and are used to plug things into. Male-to-male jumper wires are the most common and what you likely will use most often. When connecting two ports on a breadboard, a male-to-male wire is what you'll need.
 

Jumper Wires - M-F

 99.00

Jumper wires are simply wires that have connector pins at each end, allowing them to be used to connect two points to each other without soldering. Jumper wires are typically used with breadboards and other prototyping tools in order to make it easy to change a circuit as needed.Male ends have a pin protruding and can plug into things, while female ends do not and are used to plug things into. Male-to-female jumper wires are the most common and what you likely will use most often. When connecting two ports on a breadboard, a male-to-female wire is what you'll need.
 

Jumper Wires - F-F

 99.00

Jumper wires are simply wires that have connector pins at each end, allowing them to be used to connect two points to each other without soldering. Jumper wires are typically used with breadboards and other prototyping tools in order to make it easy to change a circuit as needed.
Female ends have a pin protruding and can plug into things, while female ends do not and are used to plug things into. Female-to-female jumper wires are the most common and what you likely will use most often. When connecting two ports on a breadboard, a female-to-female wire is what you'll need.
 

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

Breadboard - 800 Points

 89.00

A breadboard is a solderless device for temporary prototype with electronics and test circuit designs. Breadboards are used for rapid prototyping of electronic projects, without needing to solder the components to make it work. Most electronic components in electronic circuits can be interconnected by inserting their leads or terminals into the holes and then making connections through wires where appropriate. The breadboard has strips of metal underneath the board and connects the holes on the top of the board.

This is a Full size breadboard or standard size breadboard with 800 tie points, the breadboard measures 55mm x 170mm, you can combine two or more of this breadboard to make larger or wider breadboards, it also includes an adhesive foam at the back, to mount it securely on most surfaces.

RGB LEDs

 99.00

RGB LED means red, blue and green LEDs. RGB LED products combine these three colors to produce over 16 million hues of light. Note that not all colors are possible. Some colors are outside the triangle formed by the RGB LEDs also, pigment colors such as brown or pink are difficult, or impossible, to achieve. RGB LED is a combination of three LEDs in just one package: red, green and blue. You can generate different colors by adjusting the brightness of each of the three LEDs of the RGB LED; to adjust the brightness of each LED, you use a PWM signal.

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. 
 

Bread Board - 400 points

 89.00

Solderless breadboards are commonly used for prototyping because they allow you to quickly build temporary circuits without soldering. Breadboards accept most through-hole parts and up to 22 wire. When you’re done or want to change your circuit, it’s easy to take your circuit apart. Pre-cut and premium jumper wires are especially convenient for Solderless Breadboard.Two sides of the breadboard have tabs and the other two sides have compatible slots, which lets you connect multiple 400-point breadboards for more prototyping space.

Specifications:

• It has total 400 holes
• Perfect for electronics protype experiments
• After experimenting with breadboards you can make your circuit more permanent with same connection
• Made up of ABS plastic + Phosphor bronze nickel plated spring clips.

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.

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.

Node MCU

 399.00

NodeMCU is an open source IoT platform. It includes firmware which runs on the ESP8266 Wi-Fi SoC from Espressif Systems, and hardware which is based on the ESP-12 module.

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.