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LM35 Temperature sensor

LM35 LM35DZ Temperature Sensor is an analog temperature sensor. The temperature is determined by measuring the output voltage of the LM35.The LM35 sensor is a high precision integrated thermoelectric sensor whose output voltage is linearly proportional to Temperature in degrees Celsius. The LM35 sensor is a precision sensor, manufactured by National Semiconductor, which displays a linear voltage output relative to the temperature it is in when it is powered by a voltage of 4-20Vdc and GND, having at its output a signal of 10mV for each Celsius Degree of temperature.

The LM35 does not require any external calibration or trimming to accurately provide temperature values ​​with variations of ¼ ° C or even ¾ ° C within the temperature range of -55 ° C to 150 ° C. This sensor has output with low impedance, linear voltage and precise inherent calibration, making the reading interface specifically simple, making the entire system less costly. This sensor can be fed with simple or symmetrical power, depending on what you want as an output signal, but regardless of that, the output will continue to be 10mV / ºC. It drains only 60μA for these feeds, so its self-heating is approximately 0.1ºC outdoors.

The LM35 sensor is presented with several types of encapsulations, the most common being the TO-92, which looks more like a transistor, and offers a great cost-benefit ratio, being the cheapest of the models and providing the same precision of the others. The great diversity of encapsulations is due to the high range of applications of this integrated.

0.500 KWD Add to Cart

LM358P Precision, Op Amp, 700kHz, 5 → 28 V, 8-Pin

General Purpose Op Amps, LM Series:

A range of general purpose operational amplifiers from Texas Instruments suitable for a multitude of uses. These devices offer cost-effective performance in non-specialised applications and are available in single, dual and quad configurations. The range includes a large variety of both through hole and SMT packages. Many of the devices in the LM family of op-amps offer low power consumption and are able to operate with single supplies with input common mode voltages that includes ground.

0.750 KWD Add to Cart

Load sensor-50Kg

This load sensor, sometimes called a strain gauge, is the same one found in digital bathroom scales (you know, the ones you use in January for your New Year's resolutions, and then forget about a month later). This sensor can measure up to about 110 pounds. Check the video below for a simple explanation on how these work and how to use them.

7.5 KWD Add to Cart

Make: Getting Started with Raspberry Pi - 3rd Edition

What can you do with the Raspberry Pi, the affordable computer the size of a credit card? All sorts of things! If you're learning how to program---or looking to build new electronic parts---"Getting Started with Raspberry Pi" will show you just how valuable that flexible little platform can be.

Updated to include coverage of the Raspberry Pi Models 2 and 3, "Getting Started with Raspberry Pi" takes you step-by-step through many fun and educational possibilities. Take advantage of several preloaded programming languages. Use the Raspberry Pi with Arduino. Create Internet-connected projects. Play with multimedia. With Raspberry Pi, you can do all of this and more!


  • Authors: Matt Richardson and Shawn Wallace
  • Publisher: O'Reilly Media/Make Media
  • Paperback: 186 pages
  • ISBN-13: 978-1-6804-5246-4
10.00 KWD Add to Cart

MakerBot BotStep17 REV E

The BotStep17 plugs into the MightyBoard to control the stepper motors on your MakerBot Replicator 1, 2, and 2X desktop 3D printers.

These little boards can blow from time to time with smoke and a loud crack noise.

There are 4 on a single extruding Makerbot Replicator 1 or 2 (X-axis, Y-axis, Z-axis, E-axis [for the extruder]), and 5 on the Replicator 2X and Twin Replicator 1.

There may be no physical evidence of a blown bot step on the board. When blown they can fade a screen, cause lines through a screen, and affect motor movement.

Before testing or installing, take a picture of the motherboard to make sure you get the orientation correct when you reinstall. If you suspect one has blown it is easy to test:

  1. Remove them one by one and turn the machine back on. Do not replace them until the end as there could be more than one that is blown.
  2. When you get to the point that the machine starts up properly, begin replacing the bot steps one at a time to see which ones are blown.
  3. Replace any bad BotSteps with new ones

If it is affecting movement, but not the screen etc, try swapping the Z-axis with the one related to the bad movement. Usually the X-axis as it works the hardest. If the problem resolves in the X direction, for example, you know that bot step needed replacing.

35 KWD Add to Cart

Makey Makey Standard Kit

You may be the greatest living banana-pianist, but how will you ever know if you don’t make yourself a banana piano? Good news, that project and countless others are easier than you think they are with MaKey MaKey.

Using the Makey Makey you can make anything into a key just by connecting a few alligator clips. The Makey Makey Classic by JoyLabz is an invention kit that tricks your computer into thinking that almost anything is a keyboard. This allows you to hook up all kinds of fun things as an input. For example, play Mario with a Play-Doh keyboard or piano with fruit!

The Makey Makey Classic uses high-resistance switching to detect when you’ve made a connection even through materials that aren’t very conductive (like leaves, pasta or people). This technique attracts noise on the input, so a moving window averager is used to lowpass the noise. The Makey Makey can also act like a keyboard or mouse. There are six inputs on the front of the board, which can be attached to via alligator clipping, soldering to the pads, or any other method you can think of. There are another 12 inputs on the back, six for keyboard keys and six for mouse motion, which you can access with jumpers via the female headers.


Tutorials and examples:

MaKey MaKey - An Invention Kit for Everyone

Makey Makey Project - Hand Drawn Piano

Introduction to Makey Makey

20.00 KWD Add to Cart

Makey makey board

The Makey Makey is a board with an Atmega32u4 which behaves like a HID (Human Interface Device) device, such as a keyboard or mouse. The board has solderless head pins and pads to connect alligator clips to which allows you to connect almost anything up to create a circuit and trigger things on your computer. Your imagination is the limit!

On the top side of the board are 6 pads (4 arrow keys and space bar + left click) which you can connect alligator clips to, solder to, or any other form of connection. There are another 12 inputs on the back, 6 for keyboard keys, and 6 for mouse motion, which you can access with jumpers via the female headers. The best part about Makey Makey is that it is an Arduino compatible board, which means that if you want to change the keyboard triggers from certain keys, or experiment with different program options, you can easily reprogram it using the Arduino IDE!

The Makey Makey is designed to work out of the box and requires no programming or electronics knowledge to get started.

15.00 KWD Add to Cart

Maxell CR2032 Lithium Battery - 3V

The CR2032 Hitachi Maxell Japan make Lithium Coin Cell is 100% Authentic, Powerful and has long life. It is widely used in Laptops, Notebooks, Calculators, Remote Controls & many 3V operated devices as a durable source of power.

0.500 KWD Add to Cart

Micro Limit Switch 2A 125V

Widely used in electronic product equipment, communication equipment, military products, test instruments, gas water heaters, small household appliances, floating ball equipment, medical equipment, power tools and general electrical and radio equipment, 24-hour timer, etc.

0.500 KWD Add to Cart

MIcroservo 9g A0090-180 degrees

Here is a simple, low-cost, high quality servo for all your mechatronic needs. This servo is very similar in size and specifications to the Hitec HS-55. This little guy is able to take in 6 volts and deliver 20.8 oz-in. of maximum torque at 0.10 sec/60°

4 KWD Add to Cart

Mifare RFID Reader

It's small in size with USB interface. It doesn't need any drivers. It reads for Mifare 14443A card physical serial number and sends data via USB interface. The data input just likes from keyboard.

15 KWD Add to Cart

Mini MP3 Player Module with Simplified Output Speaker + Micro SD card

The MP3-TF-16P Player For Arduino is a small and low price MP3 module with an simplified output directly to the speaker. The module can be used as a stand alone module with attached battery, speaker and push buttons or used in combination with an Arduino UNO or any other with RX/TX capabilities.

1.5 KWD Add to Cart

MP3 Trigger

Make some noise with your next project! The MP3 Trigger board is built to make MP3 sound integration easier than ever. The board has 18 external trigger pins that will directly trigger pre-selected MP3 tracks, and a full-duplex serial control port that provides full transport control, remote triggering for up to 256 tracks, and fast real-time volume control. MP3s are stored on FAT16 formatted SDSC or FAT32 formatted SDHC micro-SD flash memory cards. In addition, optimized code can achieve 192Kbps stereo playback from a wider range of cards.

The heart of the MP3 Trigger board is the Cypress PSoC CY8C29466-24SXI microcontroller which serves up MP3 data to a VLSI VS1063 audio codec IC. This version also supports an optional initialization file that can be used to set the serial port baud rate as well as to reprogram any of the 18 trigger inputs to alternate functions, including random and sequential track selection, transport controls and even volume up/down. Each conventional trigger can be set to either allow immediate restarts, or to lock out restarts if audio is playing. Also, a new trigger filename convention provides greater flexibility in naming your MP3 tracks and makes file management easier.

There is also a “Quiet Mode” feature that can be enabled via the serial control port. In this mode, the trigger inputs don’t start tracks directly, but instead produce a serial message indicating which triggers were activated. A host microcontroller can thus monitor the trigger inputs and then start any track or sequence of tracks via the serial control port, making the triggers much more flexible.

This version of the MP3 Trigger includes firmware that supports the use of an initialization file on the microSD card that can be used to change the serial baud rate, as well as to repurpose any of the 18 trigger inputs to alternate functions, such as random and sequential triggers, navigation controls and even volume controls. In addition, a restart lockout option can be used to prevent any trigger from starting a track if audio is already playing. Using these features, custom applications can often be implemented without the use of a separate microcontroller.

Note: This product is a collaboration with Robertsonics. A portion of each sales goes back to them for product support and continued development.

Hook Up Guide

Support Page


SparkFun MP3 Trigger Robot Tutorial with DJ Sures

Mp3 trigger demo


25.00 KWD Outof Stock

MPU-6050 Three-axis accelerometer sensor Module gyroscope 6 DOF GY-521 project

5pcs/lot MPU-6050 Three-axis accelerometer sensor Module gyroscope 6 DOF


Motion sensing game,Augmented Reality,Electronic Image Stabilization (EIS: Electronic Image Stabilization),Optical image stabilization (OIS: Optical Image Stabilization);

GY-521 for Arduino project

2.5 KWD Add to Cart

MQ 9 carbon monoxide, combustible gas sensor detection alarm module

MQ-9 Sensor Description :

Sensitive material MQ-9 gas sensor is used to clean the air in the lower conductivity of tin dioxide (SnO2). Detection method using low temperature cycling (1.5V heating ) to detect carbon monoxide, conductivity sensors with carbon monoxide in the air increased with increasing gas concentration , spurious adsorption at high temperatures (5.0V heating ) detection of combustible gases methane, propane and cryogenic cleaning gases. Simple circuit can be used to change the conductivity , concentration of the gas is converted to the corresponding output signal. MQ-9 high gas sensor for carbon monoxide, methane , liquefied petroleum gas sensitivity , the sensor can detect a variety of gases containing carbon monoxide and flammable , is a low-cost sensors for a variety of applications .


1.50 KWD Add to Cart