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2118_large_seven_segment_led_display_kit

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7 Segment LED Display Kit

5.42
Exclusive to Kitronik
Teaching Notes
Key Stage 3/4
7 Segment LED Display Kit uses both a Binary Up/Down Counter IC and a Binary to 7 Segment Display Driver IC. Press the switch to count the LED display up/down.

Availability: In Stock.

Code1+ 5+ 50+
2118£5.42
(£6.504 incl VAT)
£3.85
(£4.62 incl VAT)
£3.50
(£4.20 incl VAT)
OR

This kit uses a binary up down counter IC and a binary to 7 segment display driver IC to operate the 7 segment LED display. Connections to the board allow up or down counting to take place and pre-set value to be loaded.

The kit makes a nice table football score board as supplied or an electronic dice if used in conjunction with the square wave generator (Application note available).

Features:

  • Connections to the board allow up or down counting to take place and pre-set value to be loaded.
  • The kit uses both a Binary Up/Down Counter IC and a Binary to 7 Segment Display Driver IC.
  • Press the switch to count the LED display up/down.

Contents:

Dimensions:

  • PCB Length: 85mm.
  • PCB Width: 44.5mm.

Requires:

Resources:

Note:

  • This kit requires soldering.

Free samples:

Teachers can order a sample of this kit (one per school) here. You will need to select the kit from a list of all the sample kits; the stock code for this kit is 2118.
Note: this service is only offered to schools for evaluation purposes only.

Buy British:

 This kit is designed and manufactured in the UK by Kitronik.

7 Segment demo
Video 7 Segment Display Demo
7 Segment Display demo video.
7_segment_dice_thumb
How to Make a 7 Segment Electronic Dice
Learn how to make a 7 Sedment Electronic Dice in our easy to follow tutorial.

Questions:

Posted by Stuart Matthews, Friday, 31 October 2014 on product 7 Segment LED Display Kit

Question:

Can I take a separate connection from Q0; Q1; and Q2 outputs to go to a board game I am constructing. So I have the Digital Dice outputs and also the Binary outputs at the same time. Best regards Stuart Matthews

Answers:

  • Posted by Aaron Sturman on Friday, 31 October 2014
    Yes you could take the outputs from Q0, Q1 and Q2 and feed them into another logic level device.
Posted by Dave, Friday, 5 September 2014 on product 7 Segment LED Display Kit

Question:

I need a kit like this but one that will go up to 1000. Do you have one with a 4 digit display and how much will it cost?

Answers:

  • Posted by Aaron Sturman on Friday, 5 September 2014
    Hi, we don't have a kit for this unfortunately. You could use 4 seven segment displays (not the kits) hooked up to a microprocessor like an Arduino.
Posted by Anthony, Monday, 28 April 2014 on product 7 Segment LED Display Kit

Question:

Good Morning, Can the 7 segment display be installed on a separate board connected to the main board via wire? Also, is there a recommended age/school grade for this type of project?

Answers:

  • Posted by Aaron Sturman on Monday, 28 April 2014
    Hi Wendy, You need: A sewable coincell holder https://www.kitronik.co.uk/products/textiles/textiles-kits/power-boards/switched-coin-cell-holder/ Battery https://www.kitronik.co.uk/index.php?cID=854 Conductive thread https://www.kitronik.co.uk/products/textiles/textiles-kits/conductive-thread-and-materials/6m-conductive-thread/ LED boards (each board has one light on it) https://www.kitronik.co.uk/products/textiles/textiles-kits/leds-textiles/white-sewable-pcb-led-pack-10/
Posted by Andrew, Monday, 23 April 2012 on product 7 Segment LED Display Kit

Question:

Is it possible to add an extra switch with this kit thats switches down,so you have both. Aslo is there one with a red display instead of green.

Answers:

  • Posted by Geoff Hampson on Monday, 23 April 2012
    The IC that does the counting has an input to count and an input for direction. If you wanted to have a button for up and a button for down rather than a slide switch for direction and a button to step then you would need some logic. The step input wants to be active if the up or down switch is pressed. In other words feed the up and the down switch (with pull down resistors) in to an OR gate. The up / down pin should be connected to the up button. This now leaves the minor issue of propagation delays and set-up times. At 5V the up / down signal needs to have been present for 300nS before the clock signal arrives. In hardware this means connecting a resistor followed by a capacitor to 0V and then using the point where the resistor and capacitor connect to feed in to the clock in. If you use a 1K and a 1nF it should give you the required delay.
Posted by M Norris, Tuesday, 19 July 2011 on product 7 Segment LED Display Kit

Question:

regarding the above Kit, is it possible that you have a circuit board that can accommodate two 7 segment displays? I am looking to build a board but only need the numbers to go up to 12, and then back to zero after that, if possible. Thanks

Answers:

  • Posted by Geoff Hampson on Tuesday, 19 July 2011
    The up down binary coded decimal IC (4510B) has a pin for carry out (pin 7) and a carry in pin (pin 5). This means that it is possible to use one chip to drive a second chip and it would therefore be possible to get one chip to count to 9 and on roll over trigger the second chip to go from 0 to 1. The only problem is that as this project kit has not been designed to use the carry in pin and as a result it has been set to a state where it is ignored. It is possible to use some logic gates to work out that the number 12 (BCD 10010) has been reached and that a master reset or parallel load of zero is required. So whilst it would be possible to do it, it won?t be very straight forward and would need tracks cutting plus extra logic gates and mounting of the 7 segment displays on wires in order for them to be together. You may wish to consider using a PICAXE chip or similar.

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