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HC-05 Bluetooth Transmitter/Receiver for Serial Communications

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£6.50 (inc VAT £7.80)



  • M3 Zinc Plated Nuts 100 pack

    M3 Zinc Plated Nuts 100 pack

    Steel Nut, zinc plated. M3 (3mm dia Metric thread) 100 pack

  • Prototype Breadboard with 830 points

    Prototype Breadboard with 830 points

    Solderless Prototype Plug-In Breadboard 0.1 inch - 2.54mm spacing

    Ideal for experiments & teaching. 830 Points. 2 x 63 x 5 and 4 x 10 commoned points.

    63 rows of 5 points. Self-adhesive backing (or use free-standing).

    Can be used over and over again for prototyping circuits.

    Useful numbered grid. Accepts IC sockets, ICs and pin strips, transistors, resistors capacitors, LEDs, diodes, wire, etc

  • 65 Breadboard Jumper Leads Solderless

    65 Breadboard Jumper Leads Solderless

    Solderless Jumper Leads for use with Breadboard

    This set of coloured jumper leads, invaluable when creating circuits with Breadboard. Seven different colours and Four different lengths will simplify your connections, keeping  your work neat and clear to identify. 

    Colours: Red, Orange, Yellow, Green, Blue, Black and White

    Lengths: 120mm, 165mm, 200mm and 240mm

  • Arduino Nano Revision 3 Development Board

    Arduino Nano Revision 3 Development Board

    Arduino compatible board with the ATMEGA328P microcontroller

    The Arduino Nano is a small, breadboard-friendly version of the Arduino UNO.

    It has the same functionality as the Arduino Duemilanove but at a much smaller size.

    The Arduino Nano is well suited for rapid prototyping and as a great general-purpose microcontroller. 

    Since Arduino is open source hardware & software, anyone can copy the Arduino Nano boards exactly, even using original parts.

    We are therefore able to supply this Arduino identical compatible board at a fraction of the cost of the original.

    Key Features

    Variable Input Voltage (7-12V)

    Indicator LEDs for immediate feedback

    Compact Form Factor (45mm x 19mm)

    14 Digital I/O pins

    8 Analog I/O pins

    16 MHz clock speed

    32kb flash memory (of which 2kb is used by the bootloader)



    Software can be downloaded from the Arduino website here

    Arduino Quick Start Guide


    Installing the Arduino IDE

    1. Go to and download the appropriate version for your system.
    2. Run the installation file (usually called arduino-1.xx.xx-windows.exe).
    3. Follow the on-screen instructions to complete the installation process.

    Connecting the Arduino to a computer

    1. Connect the Arduino to your computer using the USB cable provided.
    2. Open the Arduino IDE and click on “Tools”. When prompted by windows firewall click allow.
    3. Move the cursor over “Board” and select your Arduino board from the list (e.g. “Arduino Nano”).
    4. Click on “Tools” again and move the cursor over “Port”. Now, select the USB port where the Arduino is plugged in. If you have multiple devices under “Ports” and you are unsure which one is the Arduino, try selecting one of the ports and then click on “Tools” and select “Get board info”. If the Arduino port is selected, a small window displaying the board information will appear, otherwise keep trying different ports until the window appears.
    5. To check if the Arduino is connected correctly, click on the “Upload” button at the top of the screen (button with arrow pointing to the right) and wait for the empty sketch to upload. If no errors come up, you’re all set up and ready to go!

    Installing Arduino Libraries

    Method 1

    1. Open the Arduino IDE and click on “Tools” at the top of the screen.
    2. Click on “Manage Libraries”.
    3. Type in the name of the library you wish to install (e.g. “CCS811”) and press enter.
    4. The Library Manager will now display a number of relevant libraries. Hover the cursor over the required library and click “Install”. When the installation has finished, close the Library Manager window.

    Method 2

    1. Download the library you wish to install.
    2. Extract the folder from the zip file and paste it in the following location:

             Windows XP and above: C:\Users\%username%\Documents\Arduino\Libraries

             Mac: /Users/<username>/Documents/Arduino/libraries/

             Linux: /usr/share/arduino/libraries/ (you must delete the dashes in the folder name, if there are any)

    1. Restart the Arduino IDE.
  • 40 Male to Female Jumper Cables on rainbow ribbon cable

    40 Male to Female Jumper Cables on rainbow ribbon cable

    Solderless Male to Female Jumper Leads - set of 40

    This set of coloured male to female jumper leads can be used intact, or peeled appart into small sets or single leads. Great for prototyping with Arduino, Raspbery Pi and other projects

    Keep track easily with 10 different colours for quick fault finding. 

    4 of each: Red, Orange, Yellow, Green, Blue, Grey, Purple, Brown, Black and White

    Each length: 200mm

  • M3 Zinc Plated Steel Flat Washers 100 pack

    M3 Zinc Plated Steel Flat Washers 100 pack

    Steel Flat Washer, bright zinc plated. To fit M3 Screw (3mm dia Metric thread) 100 pack

  • GY-521 3 Axis Accelerometer Gyroscope module for Arduino MPU-6050

    GY-521 3 Axis Accelerometer Gyroscope module for Arduino MPU-6050

    3 Axis accelerometer and gyroscope module for Arduino and other microcontroller projects

    This module has an MPU-6050 accelerometer and gyroscope IC on a GY-521 breakout board, making it easy to use this amazing sensor.

    The MPU-6050 gives an accurate position and movement data via the standard I2C protocol making it simple to add to your project.


    Voltage : 3-5VDC

    Gyroscope Range 250 500 1000 2000 / s

    Acceleration Range : 2 4 8 16g 

    Size 22x16mm

  • Breadboard Power Supply 5V / 3.3V

    Breadboard Power Supply 5V / 3.3V

    Power Supply Board for Breadboard

    This PSU board is designed to fit directly on to a standard breadboard such as our BB400T and BB830. to give 2 power rails, 5V or 3.3V, Rail voltages are switch selectable. It can powered by 7-12V at the DC socket or 5V via the micro USB socket.
    Voltage in : 5VDC Via USB or 7-10VDC 
    Max Current : 700mA
    Size 53x31mm
  • BMS Charger for 3.7V Lithium battery with protection

    BMS Charger for 3.7V Lithium battery with protection

    1S BMS (Battery Management System) for use with a single cell 3.7v Lithium battery

    This BMS is designed to charge and manage the use of a lithium battery. It will manage the charging when used with an apropriate constant current power supply for the battery. It will also protect the battery from both over voltage and under voltage. It also features over current and short circuit protection.

    This BMS will charge 1 lithium battery like 18650 or 26650. It will also charge 1S LiPo (Lithium Polymer) battery packs.   

    A constant voltage/current power source is needed to properly use this BMS like the BCD5A or BCD9A
    Voltage in : 4.2V - 5VDC
    Over Voltage Protection : 4.2VDC
    Under Voltage Protection : 2.75VDC
    Maximum Charging Current : 2A
    Maximum Discharging Current : 2A
    Over Current Protection : 3A
    Dimensions : 30mm x 3.8mm

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Bluetooth transmitter/receier module for serial communication with Arduinos and other microcontrollers

This module is bassed on the CSR standard bluetooth chip. It is a bluetooth transmitter and receiver that can connect to an arduino and allow serial communications to be sent to the arduino wirelesly from another bluetooth device such as a smartphone, a PC or another one of these modules. 
Voltage : 3.3-5VDC
Max Current : 30mA
Frequency : 2.4GHz
Baud Rate : 9600 as defult
Dmensions : 15.5mm x 40mm

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