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Tiny RTC - Arduino real time clock module

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£2.50 (inc VAT £3.00)



  • 2N3904 Transistor

    2N3904 Transistor

    2N3904 NPN TO92 EBC 40V 200mA 250MHz

  • ORP1


    Light Dependant Resistor (LDR) Miniature. Cadmium Sulphide Cell CdS Cell

    Increase in brightness reduces resistance. 2K-1M ohms typically. Max voltage 150V

  • CR2032 Lithium Coin Cell 20 x 3.2mm

    CR2032 Lithium Coin Cell 20 x 3.2mm

    Lithium Coin Cell. 3 Volts. Extremely long shelf & active life. 20 X 3.2mm.

  • Pack of 100 Single Sided  PCB Pins to fit Pierced Boards, Veroboard, Stripboard

    Pack of 100 Single Sided PCB Pins to fit Pierced Boards, Veroboard, Stripboard

    Pack of 100 Single Sided Circuit Pins to fit 0.1 inch 2.5mm Strip Board, Matrix Board & Plain Board

  • 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 Uno Revision 3 Development Board

    Arduino Uno Revision 3 Development Board

    UNO R3 Arduino-compatible board with the ATMega328P, ATMega16U2 and CH340G serial converter

    Since Arduino is an "Open Source" hardware as well as software; anyone can duplicate the Arduino Uno R3 boards exactly, even using original parts, this means we are able to supply this Arduino compatible board at a fraction of the cost of the original but still working identicaly to the original.

    The UNO is the best board to get started with electronics and coding. If this is your first experience tinkering with the platform, the UNO is the most robust board you can start playing with. The UNO is the most used and documented board of the whole Arduino family.

    Arduino Uno is a microcontroller board based on the ATmega328P. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz quartz crystal, a USB connection, a power jack, an ICSP header and a reset button. The development board has everything needed to support the microcontroller to help you create an endless amount of projects and if you are just starting then the worldwide Arduino community is full of ideas, guides and help to get you started or help you complete your project. 
    1 x Arduino Compatible Uno R3 development board
    1 x USB Cable

    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 Uno”).
    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.
  • I2C Parallel to Serial Converter for Arduino Type LCD Screens

    I2C Parallel to Serial Converter for Arduino Type LCD Screens

    I2C Paralel to 2 Pin Serial converter for Arduino type LCD screens

    This converter can be soldered directly to a standard 1602 LCD screen to convert it to the more convenient 2 pin serial (I2C) used in many Arduino projects.
    There is a removable jumper to allow connection with both backlit and non backlit screens.
    A potentiometer can adjust the brightness & contrast of the LCD.
    GND = Ground
    VCC =  5V
    SDA = Serial Data Line
    SCL = Serial Clock Line 
  • 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

  • 4mm diameter Audio Screened Cable per metre

    4mm diameter Audio Screened Cable per metre

    High Quality Extra Flexible 4mm Audio Lap Screened Cable - per metre - continuous length up to 50m

    Copper cored Round Audio Cable 4mm diameter Black.

    Number of Strands: 16/0.12

    Also available on 100m reels100M reels. Please go to ZS2H


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Tiny RTC module  

This module uses the DS1307 chip, which can be used for keeping time in a very wide variety of projects. For example it can be used to add time stamps to sensor readings, display the time accurately or keep track of time even when there is no power supplied (although it will require a rechargeable CR2032 battery for this). The Tiny RTC supports the I2C protocol, which makes it very easy to interface with many microcontrollers. 
Battery (optional): CR2032
Power consumption: <500nA (in Battery Backup Mode)
RAM: 56 Byte, non-volatile
Memory: 32kb EEPROM
Dimensions: 27mm x 28mm x 8.4mm

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