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  • Robo:Bit Mk2 Buggy for BBC Micro:Bit (RoboBit for Microbit) (RBITBUG)
    Robo:Bit Mk2 DIY Buggy for the BBC Micro:Bit

    NB. BBC Micro:Bit is NOT included unless specifically selected with the checkbox

    This little buggy can be assembled very quickly using only a screwdriver. No soldering is required

    Improvements over Mk1:
    • Stronger motor sub-chassis with no structural solder joints
    • Wire-free battery pack
    • Easier to attach battery holder
    • Current limit on motors to prevent stall current resetting the Micro:Bit
    • Solid bolt-on ultrasonic attachment

    It comprises several packs that are also available separately:
    • Robo:Bit Mk2 robotics controller PCB
    • Fixings pack (battery holder, screws, mounting pillars, caster, etc.)
    • Wheels Motors and wheels
    • Optional extra: Line sensor pack
    • Optional extra: Ultrasonic distance sensor module
    • Optional extra: McRoboFace - simply push the 4-pin connector of the McRoboFace into the 4 holes at the front of the Robo:Bit
    Using the basic kit you can learn about:
    • Controlling motors with simple Forwards / Reverse controls
    • Controlling the speed of motors in both directions using PWM
    • Use a second BBC micro:bit with the easy-to-use radio software to control the buggy
    • Use the motion sensor on the micro:bit to detect collision with obstacles and avoid them
    With the Plug-in Ultrasonic Distance Sensor:
    • Detect when obstacles get close and change the program to avoid the obstacles
    • "Follow-Me" program that tries to stay a certain distance from the object in front
    With the Line Follower Sensor Pack:
    • Use the 2 line sensors either side of the non-reflective line to detect the line and keep the buggy on track
    • Write more complex programs that behave as required if you meet a T-Junction or crossing of lines
    • Compare different line following strategies - create a race-track and see which strategy is fastest
    • In combination with the distance sensor, make it avoid obstacles on the track and then re-acquire the line

    Assembly instructions in our blog
    Add to Cart
    £24.00
  • Flame Gizmo for Playground - Smart Pixel (GIZFLAME)
    Flame Gizmo for Playground - Analog Input

    The Playground system is an easy way to connect from Crumble, Raspberry Pi or BBC micro:bit to useful Gizmos

    The Flame Gizmo provides single "Smart Pixel" which is called a "Sparkle" on the Crumble and a "neopixel" on the micro:bit. Simply use one of the connection cables to connect from the Playground to the Gizmo

    This Gizmo has both an input connector and an output connector so they can be daisy-chained to make a long chain of super-bright pixels!
    Add to Cart
    £2.50
  • Ultimate Crumble Starter Kit (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
  • 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
    £20.00
  • Servo Crumb for Crumble Controller (CRSERVO)
    Servo Crumb for Crumble
    (AnalogOutput Crumb)

    This Crumb is fully compatible with the Crumble Controller and makes it easy to use Croc Clips to move the servo arm from -90 degrees to +90 degrees.

    The Crumble software can directly drive this servo Crumb using the servo commands to move 90 degrees left and right

    A micro servo is ready assembled onto the Crumb, but other servos can be connected instead if required to the 3-pin standard servo header.

    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
  • Mini Robot 2WD Chassis Kit - 2 Layers with Motor Driver (FT2WD-2)
    Metal Body 2WD Robot Chassis with Motors and Wheels

    This lovely little chassis kit provides a great platform to build your Arduino or Pi Zero robot.

    Made in red anodized aluminium it is solid, light and robust. And it won't shatter if you drop it on the floor!

    This kit contains an additional second layer that you could mount your batteries on. Or mount the batteries on the lower layer and the micro controller (Pi, Arduino, etc.) on the top layer

    This kit also includes a 2-channel H-Bridge motor controller so you can drive the motors easily from any micro controller

    It is only 157 x 73mm so is the perfect accompaniment for your Pi Zero or Arduino Nano

    Included in the kit are:
    • Metal chassis body
    • Upper chassis plate
    • 2 DC Motors in servo shells (these are lovely and really easy to drive)
    • 2 wheels with rubber tyres - 60mm diameter including the tyres
    • 2-Channel H-Bridge motor controller
    • Front caster wheel
    • Fixing screws etc.

    Not included:
    • Arduino or Raspberry Pi (or other micro-controller of your choice)
    • Battery pack
    • Sensors
    Add to Cart
    £15.00
  • Mini Robot 2WD Chassis Kit - 1 Layer (FT2WD-1)
    Metal Body 2WD Robot Chassis with Motors and Wheels

    This lovely little chassis kit provides a great platform to build your Arduino or Pi Zero robot.

    Made in red anodized aluminium it is solid, light and robust. And it won't shatter if you drop it on the floor!

    It is only 157 x 73mm so is the perfect accompaniment for your Pi Zero or Arduino Nano

    Included in the kit are:
    • Metal chassis body
    • 2 DC Motors in servo shells (these are lovely and really easy to drive)
    • 2 wheels with rubber tyres - 60mm diameter including the tyres
    • Front caster wheel
    • Fixing screws etc.

    Not included:
    • Arduino or Raspberry Pi (or other micro-controller of your choice)
    • Battery pack
    • Motor controller
    • Sensors
    Add to Cart
    £10.00
  • Antex XS25 Soldering Iron 25W (UK Plug) (IRONXS25)
    Antex XS25 Soldering Iron 25W (UK Plug)
    • Nominal Power - 25 watts
    • 230V UK plug
    • Supplied with long-life iron plated bit
    • Antex 50 bit is fitted to this iron (2.3mm)
    • An inner ceramic shaft provides near perfect insulation
    • A range of alternative sized bits are also available
    • Supplied complete with 2.3mm bit, 1.5m of cable and full instructions
    • CE marked
    Add to Cart
    £19.95
  • Stickvise PCB Vise (PCB Vice) (STVISE)

    Are you still looking for that perfect PCB holder? The low profile PCB Stickvise might be just the thing you need!

    In performing the simple task of holding a PCB near table level, the Stickvise is great because your hands can rest directly on the table, allowing you to steady yourself with minimal effort for fine soldering and probing. The Stickvise also fits easily under a microscope and keeps PCBs consistently in focus.

    Set the width slightly smaller than the size of your work-piece, compress the spring, slide your PCB into place, and release the springs. Easy, fast, and repeatable.

    While the design is simple, it doesn't limit you and is totally hackable. The nylon jaws that come with the vise hold a PCB 5mm or so from the shaft, giving you clearance for most layouts. If you need something a little taller, there are 3D printable designs on the site for taller jaws, jaws with slots to keep cables out of the way, and even High Temperature PTFE Jaws.

    Features

    • Hold your PCB flat -- give your arms a rest! Stickvise is not up in the air, it holds your circuit board flat so you can solder with stability at table level.
    • Simple design -- No half baked features or gimmicks, Stickvise just holds a circuit board in a simple, intuitive way.
    • Hackable -- have a special application? 3D print custom jaw plates or choose from many more tested mods to make Stickvise work for your application.
    • Comes with one set of standard nylon jaws.
    Add to Cart
    £26.95
  • Adafruit I2C ADS1115 16-Bit ADC 4 Channel with Programmable Gain Amplifier (ADA-ADC16)

    For microcontrollers without an analog-to-digital converter or when you want a higher-precision ADC, the ADS1115 provides 16-bit precision at 860 samples/second over I2C. The chip can be configured as 4 single-ended input channels, or two differential channels. As a nice bonus, it even includes a programmable gain amplifier, up to x16, to help boost up smaller single/differential signals to the full range. We like this ADC because it can run from 2V to 5V power/logic, can measure a large range of signals and its super easy to use. It is a great general purpose 16 bit converter.

    The chip's fairly small so it comes on a breakout board with ferrites to keep the AVDD and AGND quiet. Interfacing is done via I2C. The address can be changed to one of four options (see the datasheet table 5) so you can have up to 4 ADS1115's connected on a single 2-wire I2C bus for 16 single ended inputs.

    To get you started, we have example code for both the Raspberry Pi (in the Adafruit Pi Python library) and Arduino (in the ADS1X15 Arduino library repository) Simply connect GND to ground, VDD to your logic power supply, and SCL/SDA to your microcontroller's I2C port and run the example code to start reading data.

    Technical Details

    • WIDE SUPPLY RANGE: 2.0V to 5.5V
    • LOW CURRENT CONSUMPTION: Continuous Mode: Only 150µA Single-Shot Mode: Auto Shut-Down
    • PROGRAMMABLE DATA RATE: 8SPS to 860SPS
    • INTERNAL LOW-DRIFT VOLTAGE REFERENCE
    • INTERNAL OSCILLATOR
    • INTERNAL PGA
    • I2C INTERFACE: Pin-Selectable Addresses
    • FOUR SINGLE-ENDED OR TWO DIFFERENTIAL INPUTS
    • PROGRAMMABLE COMPARATOR
    • This board/chip uses I2C 7-bit addresses between 0x48-0x4B, selectable with jumpers.
    Add to Cart
    £10.45
  • Line Sensor Pack for Robo:Bit Buggy (RBITL)
    Line Sensor Pack for Robo:Bit Buggy

    NB. Robo:Bit not included

    This pack adds twin line following sensors to your Robo:Bit buggy. SImply screw together and plug in the included cables.
    This pack includes:
    • 2 x 30mm pillars
    • 4 x 6mm screws
    • 2 x Line Follower sensors
    • 2 x 10cm GVS cables
    Add to Cart
    £5.00
  • Ultrasonic Distance Sensor for Bit:Bot (BitBot) (BITSON)
    Ultrasonic Distance Sensor for Bit:Bot

    NB. Bit:Bot not included

    Ready-Soldered, just attach to your Bit:Bot with the screws provided and off you go.

    Use Microsoft PXT (or MicroPython with some awkward code) to read the distance to an obstacle, then program your Bit:Bot to avoid it.

    Both Ping and Echo signals are on the same pin (Pin 15)

    This accessory is available in 2 flavours:
    1. With the ultrasonic sensor soldered directly to the PCB
    2. With a socket soldered on the PCB that you can plug the sensor into
    The sensor soldered into the PCB is much more robust and reliable, but has a big drawback in that you cannot access the micro-USB connector on the micro:bit unless you either remove the micro:bit or use a right-angled USB lead

    The socketed version allows most USB leads to access the micro:bit, but it isn't as robust.
    Add to Cart
    £3.50
  • Pen Holder for Bit:Bot (BitBot) or CrumbleBot (BOTPENxx)
    Pen Holder for Bit:Bot or CrumbleBot

    NB. Bit:Bot not included

    This nifty little, and extremely thin, PCB allows you to connect a pen to the back of your Bit:Bot or CrumbleBot*
    • Only 0.4mm thin, so it is very flexible, allowing it to put downwards pressure on the pen without pushing the robot off the ground
    • Rubber grommet with 10mm internal diameter - ideal for Sharpie felt tips and other pens
    • Easily fitted onto the two screws for the battery support pillars in seconds

    This accessory is available in 2 flavours:
    1. Plain PCB with rubber grommet for maximum economy
    2. Fitted with 8 bright white LEDs to produce a glow-ring effect on the top and lighting the drawing below**

    * CrumbleBot must use 3xAA battery holders as this is fitted to the bottom of the battery support pillars
    ** Powered LEDs on CrumbleBot requires the "wire-free" battery holder system
    Add to Cart
    £2.50
  • Bit:Bot Robot for BBC Micro:Bit (BitBot for MicroBit) (BITBOT)
    Bit:Bot Fully Integrated Robot for the BBC Micro:Bit

    NB. BBC Micro:Bit is NOT included unless specifically selected with the checkbox

    This (almost) ready-assembled robot requires no soldering, no wires and nothing more than a screwdriver to complete it.

    The Bit:Bot fully engages children and adults alike, allowing you to explore and code the BBC Micro:Bit using any of the languages available (not all features are supported in all languages)

    Learn here how to control the Bit:Bot with your Bluetooth phone

     *NEW* There is now a Microsoft PXT package for Bit:Bot (thanks to Sten Roger Sandvik, @stenrs on Twitter). Go to the Advanced tab or the Tools gear icon and select Add Package, then search for BitBot
     

    Check out these features:
    • 2 micro-metal gear motors. Both fully controllable in software, for both speed (0 to 100%) and direction (forward or reverse)
    • Wheels with rubber tyres for maximum grip
    • Really smooth metal ball front caster
    • 12 mini neopixels in 2 sets of 6 along the arms either side. Select any colour for any pixel, produce stunning lighting effects as your Bit:Bot moves around
    • 2 digital line following sensors. Code your own line-following robots and race them to see whose code produces the fastest lap time!
    • 2 analog light sensors (front left and front right) so your Bit:Bot can be programmed to follow a light source such as a torch, or you could code it to go and hide in the darkest place it can find
    • Buzzer, so you can make beeping sounds whenever you want
    • Powered from integrated 3xAA battery holder with on/off switch and blue indicator LED
    • Easily plug your BBC micro:bit in and out using the edge connector
    • Extension port for addition neopixels (such as McRoboFace)
    • Expansion connections at the front for additional sensors (Ultrasonic rangefinder available now, more in development)
    Optionally, you can add an Ultrasonic Distance Sensor (rangefinder) module. The sensor can be either soldered to the module, or connected via a socket. No soldering is required for either version. The socketed version makes it easier to connect a micro-USB lead to the Micro:Bit, but the soldered version is more robust.

    We also have an option for a pen holder that is fitted at the back. This can be plain, or have LEDs on to create a glow ring effect around the pen

    See our detailed blog entry for example code snippets and application ideas
    Add to Cart
    £30.00
  • Small Metal Ball Caster (MQBALL)
    Small Metal Ball Caster

    This is a kit to make a small caster as used in Agobo, PicoBot and CrumbleBot Mk1

    The kit includes:
    • A 3/8" metal ball
    • 4 small bearings
    • White ABS housing
    • 2 x screws
    Total height of the assembly is 14mm

    Add to Cart
    £2.00
  • Ball Caster Omni Wheel for Smart Robot Car (BALLCAST)
    Ball Caster ideal for use with Robotic Platforms
    • 360 degrees in any direction
    • Height: 2.1cm
    • Width: 3.2cm
    • Length: 4.8cm
    • Mounting holes diameter: 0.4cm
    • Install pitch:40mm
    • Ball diameter: 16mm
    • Load limit: 18kg
    Includes 2 x 25mm hex pillars (brass), tapped for M3 screws
    Add to Cart
    £3.00
  • 4tronix PZM Pi Zero Motor Shim (PZM01)

    Pi Zero Motor Shim - Motor Controller for (almost) any Raspberry Pi Project


    Add Motors to (Almost) Any Pi Zero Project

    2016-01-22_0008a

    This tiny little board (38 x 16mm) can be added to a Raspberry Pi Zero (or any other Pi for that matter) to provide dual H-Bridge control of 2 DC motors.

    It is so thin (0.8mm) that it can be soldered onto the bottom of the connector (assuming you have added one to your Pi Zero), or you can solder on the female or male headers included in the kit so you can connect and remove it, however you have configured your Pi Zero.

    2016-01-22_0007a

    Above shows the PZM with a female header added so it can be plugged onto a "normal" male header as shown below, Note how the PZM sticks out from the Pi, so other boards can still be mounted as usual

    2016-01-22_0002

     

    Alternatively, you can mount it by soldering it directly to the bottom of the header, thus leaving the header free to attach other boards as shown below:

    2016-01-22_0013a

    2016-01-22_0012a

     

    Contents

    So what do you get in the package?

    • Ready assembled PZM shim
    • 3 x screw terminals
    • 3x2 Male header
    • 3x2 Female header

    pzm_kit01

     

    Programming?

    This is a 4 pin driven, dual H Bridge. 2 pins control Motor A and 2 pins control Motor B

    • Motor A is physical pins 35 and 36 (Broadcom GPIO 16 and 19)
    • Motor B is physical pins 37 and 38 (Broadcom GPIO 26 and 20)
    • For each motor:
      • One pin High and the other Low for Forward
      • One pin Low and the other High for Reverse
      • Both pins Low will stop driving the motor and allow it to slowly coast to a halt
      • Both pins High will brake the motor and bring it to a halt very quickly
    • The pzm.py library module provides basic functions for forward, reverse, spin left, spin right, turn left/right forward, turn left/right reverse
    • Download library and examples from here

     

    Wiring?

    • Put power 3V to 11V on the terminal marked VIN and GND. If you are using low power motors you can use the 5V from the Pi (note this isn't connected to the PZM board)
    • Reverse polarity protection is provided so you won't break it by putting them on the wrong way round, but it won't work until you get it right!
    • Connect one motor to Motor A and the other to Motor B
    • Done!

     

    Add to Cart
    £5.00
  • 2 x AAA Battery Holder with Switch and 2-Pin JST for MicroBit (BBOXMBIT)
    Battery Holder for Use with BBC Micro:Bit

    This enclosed holder for 2 x AAA batteries comes with an on/off switch and 2-pin JST connector for plugging directly into the Micro:Bit. Ideal for simple use of Micro:Bit on the move
    Add to Cart
    £1.25
  • CrumbleBot Mk2 Robot for Crumble (CrumBot2) (CRMBOT2)
    CrumbleBot Mk2 Robot for Crumble Adventures and Experiments

    The CrumbleBot Mk2 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

    CrumbleBot Mk2 builds on the success of the Mk1 with lots more features:
    • 8 Super-bright RGB LEDs - 'Sparkles'
    • 2 push-button switches
    • Easy to use Buzzer
    • Simple jumper connection system - removes the need for croc clips
    • "Wire-free", low-profile battery holder (no USB connectors or wires to get broken)
    • Modified motor mounting positions to reduce dust ingress into the gearbox
    • Improved, smooth-running, front caster
    • Powered front accessory connector
    • Additional mounting holes near rear to allow fitting of a "second deck"

    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 switches to start/stop 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.

    Crumble controller is NOT included unless option is selected

    Assembly and Coding Instructions here

    Optional Addons available:
    • Ultrasonic distance sensor - simply screws on to the front powered accessory connector
    • Pen holder (with or without "halo" LEDs)

    Add to Cart
    £30.00
  • GY-521 MPU6050 Triple 3-Axis Accelerometer Gyroscope I2C (MPU6050)
    The MPU6050 contains both a 3-Axis Gyroscope and a 3-Axis accelerometer allowing measurements of both independently, but all based around the same axes, thus eliminating the problems of cross-axis errors when using separate devices.

    Specification:
    • Accelerometer ranges: ±2, ±4, ±8, ±16g
    • Gyroscope ranges: ± 250, 500, 1000, 2000 °/s
    • Voltage range: 3.3V - 5V (the module include a low drop-out voltage regulator)
    • Arduino interface article >>HERE<<

    This simple module contains everything required to interface to the Arduino and other controllers via I2C (use the Wire Arduino library) and give motion sensing information for 3 axes - X, Y and Z

    Includes both straight and 90 degree header pins.

    Download library and example Arduino code from >>HERE<<

    MPU6050 Specification is >>HERE<<
    Add to Cart
    £4.15
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