Rajiv Electronics

YOUR PARTNER IN TECHNOLOGY SOLUTIONS

Rajiv Electronics

YOUR PARTNER IN TECHNOLOGY SOLUTIONS

Discount-For bulk orders kindly email us on (rajiv2digital@gmail.com). We will provide you the best possible discount.
  • The Keyes-039 or KY039 Heart rate monitor consists of two things, an Infrared LED, and an Infrared Phototransistor.  The IR LED should come on whenever the sensor has power and stay on (because it is infrared, you won’t be able to see that it is on, but if you look through your cell phone camera you will).  The IR photo transistor causes the voltage to change on a “sensor” wire, and this should be connected to one of the Arduino’s analog pins.
  • Pulse sensor is used to test heart rate sensors. Students, artists, athletes, creators, games or mobile terminal developers can develop heart-related and interactive works. Sensor can be worn on the finger or earlobe, It also has an open-source app program, you can put your real-time heart rate displayed by the graph. In essence, a heart rate sensor integrated optical amplifier and noise elimination circuit.
  • '- Board TP4056 lithium charge management chip - Mini USB head can link directly to the computer USB port charging - The charging board can also power supply from (IN and IN-) pin - Setting aside the the TEMP pin interface can be used as lithium battery temperature detection - Input voltage: 4V~8V - Maximum output charging current: 1000mA - D1 indicator lights on when in charging, D2 lights on when charging completed - English Manual/Spec: Yes - Great for DIY project
  • The USB to RS485 module is a cost-effective way to convert RS485 industrial buses to a USB interface. When connected to a PC USB port the USB to RS485 module is automatically detected and is installed as a native COM port which is compatible with any existing serial communication application. Multiple modules can be installed when using USB hubs thus allowing a hassle-free configuration of a multi serial system. Features
    • Reliable RS485 link
    • Automatic Switching between Transmit/Receive mode of RS485.
    • Twisted pair cable can work upto 1.2 Km distance.
    • Ground Output for wire shielding.
    • USB Powered
    • USB Port Plugabble type
    • Designed for industrial environment
    Specifications
    • Any baud rate from 1200 bps to 115 kbps
    • Current: 100mA current at 5V DC taken from PC’s USB Port
    • Modes: RS-485 Half Duplex (2-wire)
    • Built in terminal resistor of 120R Ohm
    • Length of twisted pair cable maximum can be 1.2 Km (Kilometer) Maximum
    • Cable type for optimal range: Two core, Twisted Pair Shielded type, D and D- should be twisted with each other to get optimal range
  • RGB 3 COLOR LED MODULE – KY-016

    SKU: E-256 25.00 +GST
    RGB LED module consists of a plug-in full color LED made by R, G, B three pin PWM voltage input can be adjusted Section three primary colors (red / blue / green) strength in order to achieve full color mixing effect. Control of the module with the Arduino can be achieved Cool lighting effects.
    Specifications
    • the use of plug-in full-color LED
    • RGB trichromatic limiting resistor to prevent burnout
    • through the PWM adjusting three primary colors can be mixed to obtain different colors
    • with a variety of single-chip interface
    • the working voltage: 5V
    • LED drive mode: common cathode driver
  • This is a breakout board for Freescale’s MMA7361L three-axis analog MEMS accelerometer. The sensor requires a very low amount of power and has a g-select input which switches the accelerometer between ±1.5g and ±6g measurement ranges. Other features include a sleep mode, signal conditioning, a 1-pole low pass filter, temperature compensation, self test, and 0g-detect which detects linear freefall. Zero-g offset and sensitivity are factory set and require no external devices.
  • he 555 timer IC is an integrated circuit (chip) used in a variety of timer, pulse generation, and oscillator applications. The 555 can be used to provide time delays, as an oscillator, and as a flip-flop element. Derivatives provide up to four timing circuits in one package. Introduced in 1971 by Signetics, the 555 is still in widespread use due to its ease of use, low price, and stability. It is now made by many companies in the original bipolar and also in low-power CMOS types. This module is use as a square-wave signal generator.  It generates square wave signals used for experimental development. It also generates square wave signal driving motor drive.  With adjustable pulses generated for use by the MCU and adjustable pulse control related circuits.
  • Ultraviolet rays UV Sensor ML8511

    SKU: E-261 425.00 +GST
    Description: The GY8511 breakout is an easy to use ultraviolet light sensor. The MP8511 UV (ultraviolet) Sensor works by outputing an analog signal in relation to the amount of UV light that’s detected. This breakout can be very handy in creating devices that warn the user of sunburn or detect the UV index as it relates to weather conditions.
    This sensor detects 280-390nm light most effectively. This is categorized as part of the UVB (burning rays) spectrum and most of the UVA (tanning rays) spectrum. It outputs a analog voltage that is linearly related to the measured UV intensity (mW/cm2). If your microcontroller can do an analog to digital signal conversion then you can detect the level of UV!
  • Arduino Pro Mini 328 Clone

    SKU: E-262 275.00 +GST
    This is  Arduino running the 16MHz bootloader. Arduino Pro Mini does not come with connectors populated so that you can solder in any connector or wire with any orientation you need. We recommend first time Arduino users start with the Uno R3. It’s a great board that will get you up and running quickly. The Arduino Pro series is meant for users that understand the limitations of system voltage , lack of connectors, and USB off board.
  • The Arduino Ethernet Shield allows an Arduino board to connect to the internet. It is based on the Wiznet W5100 ethernet chip (datasheet). The Wiznet W5100 provides a network (IP) stack capable of both TCP and UDP. It supports up to four simultaneous socket connections. Use the Ethernet library to write sketches which connect to the internet using the shield. The ethernet shield connects to an Arduino board using long wire-wrap headers which extend through the shield. This keeps the pin layout intact and allows another shield to be stacked on top. The latest revision of the shield adds a micro-SD card slot, which can be used to store files for serving over the network. It is compatible with the Arduino Duemilanove and Mega
    • Can detect flame or wavelength of light source within 760nm~1100nm.
    • Lighter flame detect distance 80cm.
    • Greater the flame, farther the test distance.
    • Detect angle: 60 degree, very sensitive with flame spectrum.
    • The sensitivity is adjustable.
  • This Line Tracker sensor consists of 3 IR transmitter and IR receiver pairs. This tracker sensor is typically used for robots in line following task. It can be used for either dark or bright line following. The tracker sensor have 3 digital outputs to user indicating the existence of the line. Every sensor is provided with its own LEDs as indication of line detection.
  • Description:
    • The dimensions: 32mm x 14mm approx
    • The working voltage: 3.3V-5V DC
    • On-board LM393 voltage comparator chip and vibration sensing (generally SW-18010P) probe.
    • Sensitivity adjustable (fine tune) using potentiometer.
    • Can be used to detect vibration and other occasions.
    • On-board output signal indication LED, effective output signal is high level, and the same time the indicator LED turns on.
    • Output signal can be directly connected to the microcontroller I
  • Product description: Description: stm32f103c8t6 Minimum System Board, Beginner Level Board! Also, keil arm compiler, jlink, serial download, upgrade from 51 to arm, original chip, stable and high quality, easy to use, exclusive design and development, technical support well! Purchase.   Features: stm32f103c8t6 Minimum System Learning Development Board Power supply voltage: 1. USB - 5 V 2.5 Volt front row power supply 3.3 V power supply option Typical application: led flashing light program (support various other programs) Main resources: 1. USB function 2. user led 3. power led 4. reset Maximum features: 1. compact design, easy to carry 2. full gold leaf in the front row 3. switch for imported material, etc. Dimension: 4.5 cm * 6.2 cm
  • Here is a motor speed sensor module, the major goal is to check the rate of an electric motor. The module can be used in association with a microcontroller for motor speed detection, pulse count, position limit, etc. In principle, any rate meter simply measures the rate at which some event occurs. Usually this is done by counting the events for a given period of time (integration interval) and then simply dividing the number of events by the time to get the rate.
  • USB to UART Converter is a very useful tool for Embedded Systems. If you haven’t one, please try to buy it. It will definitely boost development speed of projects which uses UART modules like interfacing GSM, GPS, Bluetooth, Wi-Fi et. By using it we can easily study these modules by sending data directly from your PC and analyzing the received data in your computer display without programming a microcontroller. Here we will use PL2303, one of the most popular USB to UART Converter manufactured by Prolific Technology Inc.
  • MQ-135 is sensitive air quality sensor that detects NH3, NOx, alcohol, benzene, smoke, CO2, etc. Heater voltage 5V, 31 ohm (40mA consumption) The board has digital and analog output.

    FEATURES

    • Detects NH3, NOx, alcohol, benzene, smoke, CO2, etc.
    • Operating voltage 5V
    • Operating current 40mA
    • Both digital and analog output
    • Popular sensor - a lot of examples available for different platforms
    • Port explanation : AO for analog output, DO for digital output, GND for ground, VCC for 5V voltage input
  • GY-31 TCS3200 Color Sensor Module

    SKU: E-270 700.00 +GST
    TCS3200 Color Sensor is a complete color detector, including a TAOS TCS3200 RGB sensor chip and 4 white LEDs. The TCS3200 can detect and measure a nearly limitless range of visible colors. Applications include test strip reading, sorting by color, ambient light sensing and calibration, and color matching, to name just a few.

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