I finally finished my Game Show project for my wife. It consists of an Atmel AT90S8515 microcontroller as a brain, with a 4x20 lcd screen, 4x4 matric keypad, 4 large LED player indicators, and 4 remote modules with 10 leds each and a Buzz in buton.
the 8515 was chosen 10 years ago, and as the years progressed the design did not change, I would work on it, get distracted by something else, then work on it again... After the main module was built and tested, I started adding the player modules.
the 8515 port.b is connected to two 74HCT244 chips split into 4 4 bit ports. A particular module is selected with the bottom 4 bits, and that half of the 244 is enabled. The controle lines for the modules is done via the top 8 bits. :)
Each player module consists of 74HCT190, 74HCT42 for controling the 10 score leds, control module could increment or decriment the LED score leds. (10 in total)...
I'm posting a video on youtube. :) http://youtu.be/d3G8PRpW1bg
attached are some pics.
↧