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  • ESP8266 WiFi Module ESP-01 (ESP-01)

    ESP8266 WiFi Module ESP-01

    ESP8266 Remote Serial Port WIFI Transceiver Wireless Module
     
    ESP8266 is a highly integrated chip designed for the needs of a new connected world. It offers a complete and self-contained Wi-Fi networking solution, allowing it to either host the application or to offload all Wi-Fi networking functions from another application processor.
     
    ESP8266 has powerful on-board processing and storage capabilities that allow it to be integrated with the sensors and other application specific devices through its GPIOs with minimal development up-front and minimal loading during runtime. Its high degree of on-chip integration allows for minimal external circuitry, and the entire solution, including front-end module, is designed to occupy minimal PCB area.
     
    Product Details :-
    WIFI Wireless Transceiver Module
    Condition: New
    LWIP agreement
    Supports 3 modes: AP,STA,AP+STA
    802.11 b/g/n
    High quality module
    High efficiency AT commands, simple for your development.
     
    Important note:  This is a 3.3v module, ensure it is only connected to the 3v lines on your micro-controller, direct 5v will damage the module.
     
    In addition to the 3.3v power supply for the module, 5v TTL data lines also need to shifted to 3.3v. When using the module with a 5V micro-controller, such as a standard Arduino,  ensure to use a level shifter on the URXD pin - a simple resistor-zener level shifter is sufficient. Again, this is to prevent over-voltage.
     
    Add to Cart
    £2.95
  • GPIO Breakout Intercept for 40-pin Raspberry Pi PCB (10 pack) (BBBBRKT10)
    40-Pin GPIO Breakout for Raspberry Pi - 10 Pack PCB+GPIO Header Only

    This item is a panel of 10 PCBs with the GPIO connector already soldered on. The additional female and male headers shipped with the single item are not included.

    A great way of accessing those unused GPIO pins even when they're covered by a HAT
    • Suitable for all Raspberry Pi with 40 pin GPIO. Zero, A+, B+, 2B, 3B
    • GPIO header is pre-soldered
    • All pins labelled (Broadcom naming)
    • Solder wires directly to the broken out pins or solder a male header (not included)
    • Uses a low-profile header fitted to the breakout PCB and an extended female header (not included) that you simply push through the holes (see photos)
    • Plug your HAT or other addon board into the pins of the extended header
    • Matte black PCB with gold plated contacts
    Contents:
    • PCB with pre-fitted GPIO header (male header and extended female header NOT included
    • All RoHS compatible and gold-plated
    Part of the Basic Building Blocks range from 4tronix which enables stacking multiple addons. As with all products in the range, the GPIO header is pre-fitted, leaving you to solder the through-hole components.

    NB. Some HATs using low-profile headers may not make as good contact with the header. In that case, you will need to screw the HAT firmly into supporting pillars (not included).
    Add to Cart
    £21.80
  • 12V Switching Power Supply PSU 5A (PSS5A12V)
    Open Frame Power Supply
    Ideal for use with our 12V LED strings
    • 12V nominal DC output
    • 230-250V AC input
    • Output adjustable +/- 1V
    • 5A maximum output current
    • Dimensions: 160 x 100 x 42mm
    As the mains terminals are open, this must not be used except in a closed secure enclosure
    Add to Cart
    £14.60
  • 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
  • Picobot2 - Cool, Smart Robot for Kid-Friendly Learning and Coding (PB2x-xx)

    Picobot2
    Kid-Friendly, Low-Cost, Educational, Feature-Rich, Programmable Robot

    Got a budding geek? There is nothing more exciting than a fully programmable robot to capture the imagination and learn the skills of coding robot building

    Build, Play, Learn

    Within a few minutes of opening the box you will have assembled the Picobot2 and will have it running around performing its built-in actions.
    • Build your own robot with kid friendly, easy steps to assemble the complete robot - 4 screws, push on the wheels and off you go!
    • Play with the built-in example programs to follow lines, seek out light sources, avoid obstacles or stay close to you
    • Learn coding by extending the example programs using the full-featured library

    Included Examples
    • Line following
    • Obstacle avoidance
    • Light seeking
    • Light avoiding
    • Colour reaction to environment Light vs Distance, Colour vs Light received, etc
    • Follow my leader (pulse the rear LED and get second Picobot to follow a pulsing white light)
    • Stay fixed distance from object/person - eg. get it to follow you around

    Base Model Comprises All you Need to get Going
    • Ready assembled circuit board with motors and lots of sensors - pre-programmed with examples
    • Acrylic case - 4 screws to fit it together
    • Rechargeable battery
    • Wheels
    • USB cable for charging and programming

    Technical Specification
    • Arduino UNO compatible ATMega328P-AU
    • 2 x N20 geared motors with "biscuit" 42mm diameter wheels
    • 400mAh rechargeable (Lipo) battery
    • 2 front light sensors
    • 2 line sensors
    • 2 fully independently controllable RGB LEDs underneath for mood lighting and status information depending how you want to program them
    • Integrated smart battery charger with LED status indicators. Charges the battery intelligently and switches off the charging when complete
    • Mode selection button - general purpose input button that you can program yourself
    • On - Off switch
    • Reset button
    • Ultrasonic distance sensor HC-SR04
    • 5V boost regulator to keep the Ultrasonic going right to the end of the battery life

    Available Options - Factory Fit Only:
    • Bluetooth Smart (Bluetooth Low Energy BLE) module using Nordic nRF51822 chipset
    • Wifi module using the ESP8266 chipset
    • Only one module can be fitted as they both use the same physical and electrical connections
    • The Wifi module uses a lot of power and so will significantly reduce the battery life between charges
    • Note that the Bluetooth and WiFi modules are not supported in the Picobot2 library directly and there are no specific Smartphone apps, but examples are available showing how they can be used

    For getting started, assembly, programming and fun ideas, please see 4tronix.co.uk/picobot2



    Add to Cart
    £36.00
  • USB DIY Connector Shell - MicroB Plug (ADA1390)
    DIY Micro-USB Connector Shell

    Make your own USB connections without slicing apart a USB cable and soldering those thin wires inside.

    Each shell comes with a two-part snap plastic shell and a proper connector with easy-to-solder tabs
    Add to Cart
    £1.00
  • 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
  • PiStop Base for Pi-Stop Educational Traffic Light Add-on for Raspberry Pi (RPI-STAND)

    These bases are ideal for fitting your Pi-Stop traffic lights away from the Pi.

    Each base has a male end and a female end, so that they can be "daisy-chained" together and have multiple lights all going together.

    The bases have 8 holes that fit on Lego® pieces

    Add to Cart
    £1.50
  • 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
  • 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
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