PROJECT HELP for electronic ludo dice

Thread Starter

sarem29

Joined Dec 28, 2020
4
I am making an electronic ludo dice using 7490 decade counter and 7447 bcd to seven segment decoder. So far so the counter works and on seven segment display it shows 0 to 9 but for the dice i want my counter to count from 0 to 6. Is there any way my counter only counts from 0 to 6. (and yes! i cant use cd4017)
 

BobTPH

Joined Jun 5, 2013
3,332
Dice go from 1 to 6, not 0 to 6. 0 to 5 can be easily accomplished by triggering reset when the output is 5. But 1 to 6 would be a nit more difficult.

Bon
 

sagor

Joined Mar 10, 2019
439
I would use a "simple" PIC micro or AT Tiny to drive the 7447 directly. Saves on chip count. There are lots of examples of PIC dice on the web, but most simply drive LEDS shaped in a dice pattern (some are dual dice). There are even examples of PicAXE dice. PicAxe can be programmed from a terminal in BASIC. I'm sure there are lots of Arduino examples as well, and those can be programmed via the Arduino IDE.
 

Wolframore

Joined Jan 21, 2019
2,283
Its homework then requirements are likely no microcontroller.
HINT: you need a gate that takes the the bit of interest and another bit to output a reset. Does that help? Take a look at the binary outputs.
26887914-1F23-4BE5-B709-F0501ED63881.jpeg
 

djsfantasi

Joined Apr 11, 2010
7,700
Dice go from 1 to 6, not 0 to 6. 0 to 5 can be easily accomplished by triggering reset when the output is 5. But 1 to 6 would be a nit more difficult.

Bon
Fairly easy with one different chip and one additional chip. But that’s not his homework.
 

MrChips

Joined Oct 2, 2009
23,560
Two ways I can suggest.

1) Count from 0 to 5 and convert 0 to 6 at the display.

2) Use a different counter IC and count from 1 to 6.
 
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