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).
- 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.
- 1 x 4510B BCD Up / Down Counter IC.
- 1 x 4511B BCD To 7 Segment Driver IC.
- 2 x 16 Pin IC Holder.
- 7 x 330Ω Resistors.
- 3 x 10KΩ Resistors.
- 1 x BC337 NPN Transistor.
- 1 x 100nF Capacitor, Ceramic.
- 1 x 7 Seg Display Module Green.
- 1 x Push To Make Switch.
- 1 x PP3 Clip Lead.
- 1 x 3AA Battery Holder.
- 0.5m Connecting Wire
- 1 x 7 Segment Display PCB
- PCB Length: 85mm.
- PCB Width: 44.5mm.
- This kit requires soldering.
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.
This kit is designed and manufactured in the UK by Kitronik.
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
Posted byon Friday, 31 October 2014Yes you could take the outputs from Q0, Q1 and Q2 and feed them into another logic level device.
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?
Posted byon Friday, 5 September 2014Hi, 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.
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?
Posted byon Monday, 28 April 2014Hi 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/
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.
Posted byon Monday, 23 April 2012The 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.
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
Posted byon Tuesday, 19 July 2011The 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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