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MQ2-Gas Detector

Overview

  • Sensitive for LPG, propane, hydrogen
  • Output voltage boosts along with the concentration of the measured gases increases
  • Fast response and recovery
  • Features boost circuit
  • Adjustable sensitivity
  • Signal output indicator

Applications

  • Gas leakage detector
4.00 KWD Add to Cart

MyoWare Cable Shield (Genuine)

The MyoWare Muscle Sensor is now designed to be wearable, allowing you to attach biomedical sensor pads directly to the board itself. However, there still may be cases where you want to mount the sensor pads away from the other hardware; this is where the MyoWare Cable Shield comes in. This shield provides a 3.5mm jack where you can attach a three-electrode sensor cable, allowing you to test and use the MyoWare Muscle Sensor without actually attaching it to your person.

The MyoWare Cable Shield is equipped with two rows of 3-pin plated through-holes on each end of the board. This allows for standard 0.1" headers to be used to stack the shield with other MyoWare boards.

The MyoWare Muscle Sensor that this shield attaches to is an Arduino-powered, all-in-one electromyography (EMG) sensor from Advancer Technologies. The MyoWare board acts by measuring the filtered and rectified electrical activity of a muscle; outputting 0-Vs volts depending on the amount of activity in the selected muscle, where Vs signifies the voltage of the power source.

5.00 KWD Add to Cart

MyoWare Muscle Sensor (Genuine)

Using our muscles to control things is the way that most of us are accustomed to doing it. We push buttons, pull levers, move joysticks... but what if we could take the buttons, levers and joysticks out of the equation? This is the MyoWare Muscle Sensor, an Arduino-powered, all-in-one electromyography (EMG) sensor from Advancer Technologies. The MyoWare board acts by measuring the filtered and rectified electrical activity of a muscle; outputting 0-Vs Volts depending the amount of activity in the selected muscle, where Vs signifies the voltage of the power source. It's that easy: stick on a few electrodes (not included), read the voltage out and flex some muscles!

The MyoWare Muscle Sensor is the latest revision of the Muscle Sensor of old, now with a new wearable design that allows you to attach biomedical sensor pads directly to the board itself getting rid of those pesky cables. This new board also includes a slew of other new features including, single-supply voltage of +3.1V to +5V, RAW EMG output, polarity protected power pins, indicator LEDs, and (finally) an On/Off switch. Additionally, we have developed a few shields (CablePower, and Proto) that can attach to the Myoware Muscle Sensor to help increase its versatility and functionality!

Measuring muscle activity by detecting its electric potential, referred to as electromyography (EMG), has traditionally been used for medical research. However, with the advent of ever shrinking yet more powerful microcontrollers and integrated circuits, EMG circuits and sensors have found their way into all kinds of control systems.

25.00 KWD Add to Cart

N2222 NPN Transistor 0.8A 40V TO-18 Metal case

Manufacturer: STMicroelectronics-SGS THOMSON
Manufacturer part no: 2N2222A
Capsulation: TO-18
RoHS: Yes

 

0.300 KWD Add to Cart

NEMA 17 Stepper motor-4.3kg-cm

The stepper motors move in precisely repeatable steps, hence they are the motors of choice for the machines requiring precise position control. The Nema17 4.3 kg-cm Stepper motor can provide 4.3 kg-cm of torque at 0.5A current per phase.

The motor’s position can be commanded to move or hold at one position with the help of Stepper Motor Drivers. The Nema17 4.3 kg-cm Stepper motor provides excellent response to starting, stopping and reversing pulses from stepper motor driver.

They are very useful in the various application, especially which demands low speed with high precision. Many machines such as 3D Printers, CNC Router and Mills, Camera Platforms, XYZ Plotters etc.

It is a brushless DC motor, so the life of this motor is dependent upon life of the bearings. The position control is achieved by a simple Open Loop control mechanism so doesn’t require complex electronic control circuitry.

The motor’s shaft has been machined for good grip with a pulley, drive gear etc. and especially avoiding stall or slip.

Stepper Motors

Note :

  1. The Nema17 4.3 kg-cm Stepper motor dimensions and weight may have  ±2% error.
  2. Resonances can occur because of improper instalment.
  3.  Not easy to operate at extremely high speeds.
5 KWD Add to Cart

NEMA 23 3Nm 600g.cm² 2phase stepper motor 57*57*100mm

This is the strong Nema 23 stepper cnc motors, it with step angle 1.8deg and size 57x57x100 mm. It has 4 wires, each phase draws 4.2A, with holding torque 3.0Nm(30kg-cm)

 

15.00 KWD Add to Cart

Neopixel RGB LED-20 numbers

So, you want lots and lots of NeoPixels? And you want them for less? Not a problem! Here's a sheet of Flora NeoPixels fresh from the (reflow) oven. Cut them off as you need 'em and save a pretty penny while you're at it.

Each order comes with 20 pixels on a sheet.

What's a wearable project without LEDs? Our favorite part of the Flora platform is these tiny smart pixels. Designed specifically for wearables, these updated Flora NeoPixels have ultra-cool technology: these ultra-bright LEDs have a constant-current driver cooked right into the LED package! The pixels are chainable - so you only need 1 pin/wire to control as many LEDs as you like. They're easy to sew, and the chainable design means no crossed threads.

These pixels have full 24-bit color ability with PWM taken care of by the controller chip. Since the LED is so bright, you need less current/power to get the effects you want. The driver is constant current so it's OK if your battery power changes or fluctuates a little.

Each pixel draws as much as 60mA (all three RGB LEDs on for full brightness white). In theory, the Flora can drive up to 500 pixels at 30 FPS (it will run out of RAM after that). However, after about 10 pixels (or if the distance between pixels is more than an inch or two) the resistance of the thread can affect the power supply. For large quantities of pixels over 10, you may want to consider using stranded core wire or copper braid to provide a "power bus" for the pixels - the current draw will add up fast!

11 KWD Add to Cart

Open smart serial MP3 player with 8 ohm 1 W speaker + Micro SD card

The module is a kind of simple MP3 player device which is based on a high-quality MP3 audio chip. It can support 8k Hz ~ 48k Hz sampling frequency MP3 and WAV file formats. There is a TF card socket on board, so you can plug the micro SD card that stores audio files. MCU can control the MP3 playback state by sending commands to the module via UART port, such as switch songs, change the volume and play mode and so on. You can also debug the module via USB to UART module. It is compatible with Ar duino/AVR/ARM/PIC.

 

6 KWD Add to Cart

OpenMV M7 Camera (Genuine)

The OpenMV M7 Camera is a small, low-power microcontroller board that allows you to easily implement applications using machine vision in the real world. The best part about the OpenMV is that it is not only capable of image capture, but also face detection, color tracking, QR code reading and plenty more. If you are looking for an economical camera module boasting multiple high-end features, look no further than the OpenMV M7!

The OpenMV can be programmed in high-level Python scripts (courtesy of the MicroPython Operating System) instead of C/C++. This makes it easier to deal with the complex outputs of machine vision algorithms and working with high-level data structures. You still have total control over your OpenMV M7 and its I/O pins in Python. You can easily trigger taking pictures and video on external events or execute machine vision algorithms to figure out how to control your I/O pins.

This version of the OpenMV M7 Camera no longer comes equipped with the acrylic case but still includes headers separate from the board. With the headers not pre-soldered, you have the option between normal male headers or female stackable headers, allowing you to decide how you use your own OpenMV!

  • 1x OpenMV M7 Camera
  • 2x 8-pin Male Header
  • 2x 8-pin Female Stackable Header

 

35.00 KWD Add to Cart

Opensmart serial mp3 player + Micro SD card

The module is a kind of simple MP3 player device which is based on a high-quality MP3 audio chip. It can support 8KHz~48KHz sampling frequency MP3 and WAV file formats. There is a TF card socket on board, so you can plug the micro SD card that stores audio files. MCU can control the MP3 playback state by sending commands to the module via UART port, such as switch songs, change the volume and play mode and so on. You can also debug the module via USB to UART module. It is compatible with Arduino/AVR/ARM/PIC.

6 KWD Add to Cart

P35 P45 Liquid Water Level Sensor Float Switch

A float switch is a device used to sense the level of liquid within a tank, it may actuate a pump, an indicator, an alarm, or other device.
Use them with hydroponics, saltwater tank, freshwater tank, gardening, aquariums for power head control, pet bowls, fish tanks, filtration, heating, or what ever your project may be
Contains no mercury

2 KWD Add to Cart

Patches for EMG Electromyography Sensor PRO - MySignals

These high quality disposable electrodes are to be used to measure EEG, ECG and EMG. They are to be used once and are very handy because of integrated gel. They adhere very well to the skin and are clean to use. One bag contains 50 electrodes. Ø 35 mm. Electrode type: H135SG Covidien. Formerly Kendall / Tyco ARBO.

This ECG/EMG/EEG electrode is ideal for a variety of purposes and is frequently used for Neurofeedback and Biofeedback.

The H135SG has a unique, patented pre-gelled adhesive side with non-irritating gel, especially developed to prevent allergic reactions. These foam electrode is latex free and therefore suitable for every skin type.

The snap-on connector can easily be pushed on or removed from the electrode lead. Therefore you have optimal user friendliness as you dispose this electrode after every session! No more greasy electrodes as the H135SG will cover the surface of the electrode. This extends the life of your electrodes.

 

10.00 KWD Add to Cart

Pixy Cam Version 2

The Pixy2 CMUcam5 is smaller, faster and more capable than the original Pixy. Like its predecessor, the Pixy2 can learn to detect objects that you teach it, just by pressing a button. Additionally, the Pixy2 has new algorithms that detect and track lines for use with line-following robots. With these new algorithms, you can detect intersections and “road signs” as well. The road signs can tell your robot what to do, such as turn left, turn right, slow down, etc. The best part is that the Pixy2 does all of this at 60 frames-per-second, so your robot can be fast, too!

No need to futz around with tiny wires — the Pixy2 comes with a special cable to plug directly into an Arduino and a USB cable to plug into a Raspberry Pi, so you can get started quickly. No Arduino or Raspberry Pi? No problem! The Pixy2 has several interfaces including SPI, I2C, UART, and USB with simple communications, so you get your chosen controller talking to the Pixy2 in short order.

The Pixy2 uses a color-based filtering algorithm to detect objects. Color-based filtering methods are popular because they are fast, efficient, and relatively robust. Pixy2 calculates hue and saturation of each RGB pixel from the image sensor and uses these as the primary filtering parameters. The hue of an object remains largely unchanged with changes in lighting and exposure. Changes in lighting and exposure can have a frustrating effect on color filtering algorithms, causing them to break. Pixy2’s filtering algorithm is robust when it comes to lighting and exposure changes.

Includes:

  • 1x Pixy2 CMUcam5
  • 1x Pixy IO to Arduino ISP Cable
  • 1x Micro USB Cable
  • 1x Mounting Hardware
35.00 KWD Add to Cart

PN4117A FET N-Channel Switch 40V

Low Capacitance, Ultra High Input Impendence, N-Channel JFET Amplifier  N channel FET(Field Effect Transistor)  It is ideal for High Input Impendence Application. Available in TO-92 3L ROHS, TO-72 4L ROHS, SOT-23 3L ROHS and Tested Die.

0.150 KWD Add to Cart