Wearables

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  • CrumbleBot Robot for Crumble (CrumBot) (CRMBOT)
    CrumbleBot Robot for Crumble Adventures and Experiments

    The CrumbleBot is an ideal way to introduce young (and old) children to robotics using the fantastic Crumble controller.

    All programming with the Crumble is extremely easy: drag, drop and click is all that is required to accomplish hundreds of simple and more complex tasks

    With this robot kit you can do experiments for:
    • Basic movements (forward, reverse, left spin, right spin)
    • More complex turns (by moving one motor slower than the other)
    • Line following using the built-in line sensors with indicators
    • Light seeking or light avoiding using the built-in light sensors
    • Using the built-in Sparkles to give indications of what is happening
    • Use the built-in push-button switch to start the program, change mode or anything else you want

    Simple programs to accomplish line following and light seeking are shown in the pictures for the listing.

    This Kit Includes:
    • CrumbleBot Mainboard. Assembled with all components and motors
    • 2 x Drive Wheels
    • Front Caster
    • 2 x Short Croc-Clips (1 x Red, 1 x Black)
    • Mountings for Crumble (6 x 5mm pillars and screws)
    • 3xAA Battery holder (NB. USB power bank is no longer available)
    Crumble controller is NOT included unless option is selected

    Assembly and Coding Instructions here

    New optional addons available: Static or Panning Ultrasonic Distance Sensors

    Add to Cart
    £26.95
  • PIR Sensor Crumb Digital Input for Crumble Controller (CRPIR)
    PIR Sensor Crumb for Crumble
    (Digital Input Crumb)

    This Crumb is fully compatible with the Crumble Controller and makes it easy to use Croc Clips to show Digital (On and Off) inputs or use them to control LEDs or Motors.

    This Crumb has an infrared sensor module with high sensitivity to changes in IR levels - ie. moving people. You could easily use it for an intruder detector, or challenge the children to reach out and press a Button Crumb before the PIR Crumb detects them (they will have to move very slowly!)

    Crumb Colour Coding:
    Yellow: Analog Input
    Red: Analog Output
    Blue: Digital Input
    Black: Digital Output

    See our Crumble QuickStart Guide
    Add to Cart
    £4.50
  • Edge Connector for BBC Micro:Bit (Microbit) (HDRMBIT)

    Edge Connector for BBC Micro:Bit

    The standard through-hole edge connector for use with the BBC Micro:Bit.
    The edge connector has 40 pins on either side at 1.27mm pitch, which translates to the 20 "actual" pins on the Micro:Bit

    This is the same connector used in our Bit:Bot, Robo:Bit and Bit:2:Pi products

    View PDF Datasheet here
    Add to Cart
    £1.80
  • Adafruit NeoPixel Ring - 16 x WS2812 5050 RGB LED with Integrated Drivers (ADA-NRING16)

    Adafruit NeoPixel Ring - 16 x WS2812 5050 RGB LEDs (Model #1463)

    Round and round and round they go! 16 ultra bright smart LED NeoPixels are arranged in a circle with 1.75" (44.5mm) outer diameter. The rings are 'chainable' - connect the output pin of one to the input pin of another. Use only one microcontroller pin to control as many as you can chain together! Each LED is addressable as the driver chip is inside the LED. Each one has ~18mA constant current drive so the colour will be very consistent even if the voltage varies, and no external choke resistors are required making the design slim. Power the whole thing with 5VDC (4-7V works) and you're ready to rock.

    There is a single data line with a very timing-specific protocol. Since the protocol is very sensitive to timing, it requires a real-time microconroller such as an AVR, Arduino, PIC, mbed, etc. It cannot be used with a Linux-based microcomputer or interpreted microcontroller such as the netduino or Basic Stamp. Adafruit's wonderfully-written Neopixel library for Arduino supports these pixels! As it requires hand-tuned assembly it is only for AVR cores but others may have ported this chip driver code so please google around. An 8MHz or faster processor is required.

    Comes as a single ring with 16 individually addressable RGB LEDs assembled and tested.
    Add to Cart
    £7.00
  • Sewable Light Sensor with Battery Holder (KIT2721)

    This board allows LEDs to be turned on automatically when it is dark. On one side of the board is the coin cell holder, which takes a CR2032 coin cell as well as a small on/off slide switch. On the other side of the board is the light sensor. This design means that it is possible to cut a small hole in the front of the product for the light sensor to detect the light level, but be able to get to the back of the board to change the battery and turn the board off.

    When turned off,any connected LEDs will be off. When turned on the connected LEDs will be off in day light but come on in the dark. There are two sets of pads that can be used to connect LEDs to the board.

    The board measures 44 x 20 x 4.5 mm (excluding the light sensor, which is 2mm high).

    A PDF tutorial explaining how to use this board can be downloaded by clicking here
    Add to Cart
    £2.50
  • SMT Edge Connector for BBC Micro:Bit (Microbit) (HDRMBITS)

    Surface Mount Edge Connector for BBC Micro:Bit

    The standard SMT edge connector for use with the BBC Micro:Bit.
    The edge connector has 40 pins on either side at 1.27mm pitch, which translates to the 20 "actual" pins on the Micro:Bit

    This edge connector has posts at either end to locate it correctly into the

    View PDF Datasheet here
    Add to Cart
    £1.80
  • Bluetooth LE (BLE) Beetle Wearable Microcontroller - Arduino Compatible (BTLBLE)

    BLE Beetle Microcontroller - Arduino Compatible Minimalist Wireless Wearable Controller

    This new version of the Beetle supports wireless programming as well as communications

    It uses the ATMega328P - the same processor as used in the Arduino Uno

    FEATURES

    • ATmega328@16MHz
    • Bluetooth Low Energy (BT 4.0)
    • Micro USB port
    • Super Compact Size
    • Support Bluetooth HID and ibeacon
    • Comaptible with all DFRobot Bluno Series
    • Support Wireless Programming

    SPECIFICATION

    • Bluetooth Chip: CC2540
    • Sensitivity: -93dBm
    • Working Temperature:-10 ℃ ~ +85 ℃ 
    • Maximun Distance:50m(Open field)
    • Microcontroller: ATmega328
    • Clock frequency: 16 MHz
    • Working voltage: 5V DC
    • Digital Pin x6
    • Analog Pin x6
    • PWM Output x2
    • UART interface x1
    • I2C interface x1
    • Micro USB interface x1
    • Power port x2
    • Size:28.8mm X 33.1mm
    • Weight:10g
    Add to Cart
    £10.00
    £11.50
  • Adafruit Sewing Needles - Pack of 20 (NEEDLES)
    Adafruit Sewing Needles

    Mighty needles, sew like the wind! This needle set is the only one you'll need for any sort of hand sewing, especially using our conductive thread and wearable electronics parts.

    Each pack contains 20 gold-eye sharps, with eye sizes ranging from #3 (1.75" long) to #9 (1.35" long). The two #3's (the largest) are too large to pass through the sewable coin cell holder but otherwise are easy to use and thread. The four #9's (the smallest) are a little difficult to thread so you may not want to use them with our conductive thread - they'll be easier to use with normal thread however. The remaining 14 needles are perfect for use with our 2-ply stainless conductive thread or stainless conductive thin yarn
    Add to Cart
    £1.65
  • Sewable Push Button Switch (KIT2708)

    This sewable push switch can be used to activate your e-textiles project whilst it is pressed down (the circuit is broken as soon as pressure on the switch is released).

    It has two connection points to which the conductive thread is connected.The PCBs are double sided making the conductive thread connection very reliable (see example picture).

    Features:

    • Double Sided PCBs for reliable connections.
    • Clearly marked '+' and '-' connections.

    Contents:

    • 1 x Ultra Slim Push Switch.

    Dimensions:

    • Length: 18mm.
    • Width: 8.5mm.
    • Height: 3mm.
    Add to Cart
    £0.75
  • Traffic Lights Crumb Digital Output for Crumble Controller (CRTRFC)
    Traffic Lights Crumb for Crumble
    (Digital Output Crumb)

    This Crumb is fully compatible with the Crumble Controller and makes it easy to use Croc Clips to turn LEDs on and off under program control.

    Now with BIG 10mm LEDs!

    As well as the 3 LEDs in Red, Yellow and Green, this crumb contains a space for a connector so a PiStop can be plugged on directly

    Crumb Colour Coding:
    Yellow: Analog Input
    Red: Analog Output
    Blue: Digital Input
    Black: Digital Output

    See our Crumble QuickStart Guide
    Add to Cart
    £3.50
  • Super Crumble Starter Kit with Crumble Controller, USB & Crumbs (CRMSUPER)
    Crumble Controller - SuperStarter Kit

    The Crumble is a cheap, easy-to-use electronics controller. A few ‘croc’ leads and a USB cable are all you need to connect motors, LEDs and sensors and begin experimenting. No programming experience is required as the FREE software is a graphical, drag-and-drop system inspired by MIT Scratch.

    This Super Starter Kit Comprises:
    • Crumble controller (the bit that does the magic!)
    • 2 x Sparkles (RGB colour pixels)
    • 10 x Crocodile clip leads (2 of each: Black, Red, Yellow, Green, White)
    • USB Cable
    • Battery Crumb with Switch and indicator LED
    • Button/Switch Crumb
    • Traffic Light Crumb
    • Slider Crumb
    • Motor Crumb with wheel
    • Presented in a solid plastic parts case (we are now using a clear case, not the yellow one shown)
    See our article on getting started with Crumble and Crumbs

    Download Crumble Software here

    Crumble Getting Started Guide

    The Crumble is an easy-to-use programmable controller. It can drive 2 motors forwards and backwards at variable speeds. It has 4 IO (Input/Output) pads which allow connections to switches, LDRs, low power LEDs and so on.

    Basic Connections

    The Crumble has been designed to encourage tinkering, using ‘croc leads’ for quick and simple connections. Pads allow terminal blocks to be fitted or a direct solder connection made, while the larger 4mm holes make an easy target for conductive thread and needle.

    Crumble with croc leads

    The Crumble software runs on PC, Mac and, in the near future, Linux (including the Raspberry Pi). Inspired by MIT Scratch, programs are simply built by snapping blocks together on screen. Sending a program to the Crumble is almost instant, allowing rapid experimentation.

    The Crumble can be extended with digitally controlled full-colour LED, called Sparkles. Additionally, several expansions board (Crumbs) are also in the works.

    Add to Cart
    £29.05
  • Sparkles Baton - A chain of 8 Sparkles for Crumble (SPRKBATON)
    Sparkle Baton
    A row of 8 full-colour LEDs (“Sparkles”), on one PCB, with croc-clip friendly connections at each end.

    The colour of each LED can be set individually by the Crumble and the “power-in” and “power-out” connections at each end mean the batons can be chained together, with up to 4 batons controlled by 1 Crumble
     
    Add to Cart
    £7.00
  • Dual Touch Sensor Crumb Digital Input for Crumble Controller (CRTOUCH)
    Capacitive Touch Sensor Crumb for Crumble
    (Digital Input Crumb)

    This Crumb is fully compatible with the Crumble Controller and makes it easy to use Croc Clips to show Digital (On and Off) inputs or use them to control LEDs or Motors.

    This Crumb has 2 touch pads with indicator LEDs that light when the pads are touched.
    In addition, each pad has a croc clip compatible external connection to which alternative touch pads or objects can be connected (eg. fruit or even other children!)

    Fruit not included!

    Crumb Colour Coding:
    Yellow: Analog Input
    Red: Analog Output
    Blue: Digital Input
    Black: Digital Output

    See our Crumble QuickStart Guide
    Add to Cart
    £4.50
  • Crumble Starter Kit: Croc Clips, LEDs. Sparkles. USB Cable (CRMSTART)
    Crumble Controller - Basic Starter Kit

    The Crumble is a cheap, easy-to-use electronics controller. A few ‘croc’ leads and a USB cable are all you need to connect motors, LEDs and sensors and begin experimenting. No programming experience is required as the FREE software is a graphical, drag-and-drop system inspired by MIT Scratch.

    This Basic Starter Kit Comprises:
    • Crumble controller (the bit that does the magic!)
    • 2 x Sparkles (RGB colour pixels)
    • 10 x Crocodile clip leads (2 of each: Black, Red, Yellow, Green, White)
    • 5 x LEDs (Red, Yellow, Green, White, Blue) - connect directly to the A, B, C or D outputs
    • 1 x LDR (light sensor) - use Analog inputs to determine light levels
    • USB Cable
    • Battery Crumb with switch and indicator and Crumble compatible connections (Requires 3xAA batteries - not included)
    View our Crumble quickstart guide here

    Download Crumble Software here

    Download Crumble Getting Started Guide

    The Crumble is an easy-to-use programmable controller. It can drive 2 motors forwards and backwards at variable speeds. It has 4 IO (Input/Output) pads which allow connections to switches, LDRs, low power LEDs and so on.

    Basic Connections

    The Crumble has been designed to encourage tinkering, using ‘croc leads’ for quick and simple connections. Pads allow terminal blocks to be fitted or a direct solder connection made, while the larger 4mm holes make an easy target for conductive thread and needle.

    Crumble with croc leads

    The Crumble software runs on PC, Mac and, in the near future, Linux (including the Raspberry Pi). Inspired by MIT Scratch, programs are simply built by snapping blocks together on screen. Sending a program to the Crumble is almost instant, allowing rapid experimentation.

    The Crumble can be extended with digitally controlled full-colour LED, called Sparkles. Additionally, several expansions board (Crumbs) are also in the works.

    Add to Cart
    £19.95
  • DC Motor Crumb Analog Output for Crumble Controller (Version 2) (CRMOT2)
    Motor Crumb for Crumble
    (Analog Output Crumb)

    This Crumb is fully compatible with the Crumble Controller and makes it easy to use Croc Clips to control the speed and direction of a small DC motor.

    This is metal gear motor (size N20) with a nominal speed at 6V of 80rpm.

    Because of the gearing, the motor turns at a speed of about 1 revolution a second, depending on the speed setting on the Crumble. This is a nice speed for little hands to work with - not too fast!

    Wheel included. Select either yellow or lilac

    NB. Version 1 of the Motor Crumb is no longer available as the motors are no longer manufactured

    Crumb Colour Coding:
    Yellow: Analog Input
    Red: Analog Output
    Blue: Digital Input
    Black: Digital Output

    See our Crumble QuickStart Guide
    Add to Cart
    £7.00
  • Motion Sensor Crumb Accelerometer for Crumble Controller (CRMOTION)
    Motion Sensor Crumb for Crumble
    (Analog Input Crumb)

    This Crumb is fully compatible with the Crumble Controller and makes it easy with Croc Clips to see the effects of movement in 3 dimensions. This crumb uses the MMA7361 for analog motion detection

    Crumb Colour Coding:
    Yellow: Analog Input
    Red: Analog Output
    Blue: Digital Input
    Black: Digital Output

    See our Crumble QuickStart Guide
    Add to Cart
    £5.50
  • Ultimate Crumble Starter Kit with all the Crumbs (CRMULT)
    Ultimate Crumble Starter Kit

    The Crumble is a cheap, easy-to-use electronics controller. A few ‘croc’ leads and a USB cable are all you need to connect motors, LEDs and sensors and begin experimenting. No programming experience is required as the FREE software is a graphical, drag-and-drop system inspired by MIT Scratch.

    This Ultimate Starter Kit Comprises:

    Crumble controller is NOT included unless option is selected

    Basic Kit
    • 4tronix Battery Crumb (with switch, fuse and indicator LED
    • 2 x Sparkles (RGB colour pixels)
    • 12 x Crocodile clip leads (2 of each: Black, Red, Yellow, Green, Blue, White)
    • Extra cost option: Crumble controller (the bit that does the magic!) with USB Lead
    • NB. The Crumble is not always included because many customers already have one
    + 5 Blue Digital Input Crumbs
    • Button/Switch Crumb
    • Reed Crumb (Magnetic switch)
    • Capacitive Touch Sensor Crumb
    • Proximity Sensor Crumb
    • PIR (Crumb (passive infrared motion sensor)
    + 4 Yellow Analog Input Crumbs
    • Dial Crumb
    • Slider Crumb
    • Light Sensor Crumb
    • Motion Sensor Crumb
    + 2 Black Digital Output Crumbs
    • Traffic Light Crumb
    • Buzzer Crumb
    + 3 Red "Analog" Output Crumbs
    • Motor Crumbs with wheel
    • Servo Crumb
    • Number Crumb
    + Presented in a solid plastic parts case

    See our article on getting started with Crumble and Crumbs

    Download Crumble Software here

    Crumble Getting Started Guide

    The Crumble is an easy-to-use programmable controller. It can drive 2 motors forwards and backwards at variable speeds. It has 4 IO (Input/Output) pads which allow connections to switches, LDRs, low power LEDs and so on.

    Basic Connections

    The Crumble has been designed to encourage tinkering, using ‘croc leads’ for quick and simple connections. Pads allow terminal blocks to be fitted or a direct solder connection made, while the larger 4mm holes make an easy target for conductive thread and needle.

    Crumble with croc leads

    The Crumble software runs on PC, Mac and, in the near future, Linux (including the Raspberry Pi). Inspired by MIT Scratch, programs are simply built by snapping blocks together on screen. Sending a program to the Crumble is almost instant, allowing rapid experimentation.

    The Crumble can be extended with digitally controlled full-colour LED, called Sparkles. Additionally, several expansions board (Crumbs) are also in the works.

    Add to Cart
    £65.95
  • BBC Micro:Bit in Gift Box (Microbit) (MBIT)

    BBC Micro:Bit in Gift Box

    BBC micro:bit is a BBC initiative to get kids in the UK coding. A royalty from the sale of this BBC micro:bit merchandise helps promote digital creativity amongst young people in the UK.

    The BBC micro:bit is a pocket-sized computer that you can code, customise and control to bring your digital ideas, games and apps to life.

    Measuring 4cm by 5cm, and designed to be fun and easy to use, users can create anything from games and animations to scrolling stories at school, at home and on the go - all you need is imagination and creativity.


    Available in 4 striking colours (Red, Blue, Yellow and Green). "You will be sent random colours of BBC micro:bit, you will not be able to order items based on their colour"

    Child Friendly:
    • Detects motion and direction - Shake the BBC micro:bit to play the classic Paper, scissors, stone game. Navigate around your local park with the onboard compass.
    • Control games using the 2 buttons
    • Flash messages or animations across the 25 programmable lights
    • Connect the BBC micro:bit to your phone using Bluetooth wireless technology to take selfies without touching your phone
    • Add a speaker to one of three connecting rings to play sounds or music.

    Micro:bit features:
    • Multiple sensors
    • Programmed via software via USB
    • Multiple platform support Windows, iOS, tablet, mobile
    • Open Source hardware (OSHW)

    Top Side
    • 3 Digital/Analogue input/output rings
    • Power port ring
    • Ground ring
    • 25 individually programmable LEDs
    • 2 programmable buttons

    Bottom Side
    • 23-bit ARM Cortex M0+ CPU
    • Bluetooth Smart Antenna
    • Accelerometer and compass
    • Micro USB
    • 20-pin edge connector
    • Battery connector
    Add to Cart
    £10.80
  • Sewable Conductive Thread, 6m (KIT2727)

    This is among the best conductive thread available. It is perfect for hand sewing and can be used on the bottom bobbin of a sewing machine (this will requite the thread to be wound on to the smaller bottom bobbin first).

    Approximately 6m of conductive thread.

    Conductive thread can be used like conventional sewing thread, however it electrically conducts allowing electronics to be integrated into textiles. This makes it ideal for use in a range of e-textile applications.

    Electrical Characteristics: The thread is nano-plated with silver to make it conductive. The conductive thread has a low resistance of approximately 40ohms per metre. This allows LEDs to be powered over quite large distances. Resistance does not vary significantly from one length of thread to the next, so you should be able to use this thread without concern for "dead" sections.

    Physical Characteristics: The conductive thread has a breaking strain of around 9.3 pounds (4.2 kilos). It comprises roughly 96 individual filaments, each coated with a micron-thick layer of natural silver. In construction, 16 of these filaments are wound together to form an initial twist; two of these twists are then twisted together, and finally three of these twists are combined to form the finished thread. The conductive thread is approximately 18 denier. It is heavier than a regular sewing thread, but not as heavy as an upholstery thread. It can be sewn on most domestic sewing machines using either a regular needle or the next size up. This thread does not fray.

    Key features:

    • No (or very low) fray.
    • Conductivity = approximately 40ohms per metre.
    • Count = 875 dTex.
    • Strength 3000 cN.
    • Elongation at break = 37%.
    • Twist = 240Z-380S.
    Add to Cart
    £2.50
  • SmartBadge 19 Neopixels in Arduino Compatible Smart Badge ()

    SmartBadge is a wearable badge that you can program to display patterns or  messages, play games or just to blind anyone who comes too close.

    At the heart of the Smartbadge is an ATMega328P, the same chip used in the Arduino UNO. So the SmartBadge is 100% code compatible with the UNO and all code will run on both platforms.

    19 super-bright, full-colour individually addressable RGB neopixels arranged in hexagonal rings allow you to make fantastic dynamic patterns and exciting games

    4 mini buttons give you control over menus, or game functions. You code, you decide!

    Powered from a rechargeable lithium coin cell (not included) which lasts 45 minutes on a single charge whilst displaying patterns continuously.

    Fast, simple and exciting way to start working with wearable computing

    50mm diameter

    The Smart Badge uses a rechargeable lithium coin cell (LIR2032) which will give around 45 - 55 minutes on a full charge.
    If you require a battery and the USB charger, then please select it.
    Note that these badges will not operate on a standard CR2032 coin cell as the voltage is too low.

    Note: To program the SmartBadge you will require a CH340G module with DTR on pin 6 like this one, or the equivalent CP2102 module like this one

    Features

    • 19 RGB neopixels
    • 4 buttons
    • Arduino IDE compatible
    • Rechargeable coin cell
    • Power & activity LEDs
    • On-off switch
    • Fully soldered

    Pre-Installed Demo Program

    SW1 acts as the menu button. After a 5,4,3,2,1,0 countdown it shows a single purple LED. Pressing SW1 cycles through 1,2,3,4,5,6 LEDs lit. It times out after 5 seconds without a button press and runs the selected demo as below. You can press SW4 if you don’t want to wait the 5 seconds.

    Press SW1 at any point to return to the menu

    Individual Demos

    1. This is the default demo and just shows lots of pretty patterns
    2. Capture Pixels game. You have to press SW4 when the white LED is on to capture it. When you complete the level it starts again, but you get less time to do it
    3. Death Ray. Ray gun effect with super bright finale
    4. Bug Chase. My brother and I wrote this game at the end of the 70s/early 80s (ancient history). It sort of pre-dates pacman. You (Blue) have to visit every pixel to collect them, whilst being chased by a bug (Red). SW4 and SW3 move you around the hexagonal ring. SW2 moves you inwards. Collected pixels show green on the first level and subsequent levels get faster. On our original game we introduced a second bug on level 3, but I haven’t done that. This game is very hard!

    Example software and neopixel library available from the 4tronix SmartBadge GitHub

     

    Add to Cart
    £10.00
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