I have had a bit of a play with AVRs in the past, but am by no means an expert and my dad has asked about a time clock for his small business (6-8 employees) to keep track of employee hours. I found a few but they are very pricey and thought I would have a go at making one.
I have a basic idea that I would like to use an AVR or equivilent to do the processing. How I visioned it was that I would have a 12 key keypad and a 2x16 lcd.
The employees enter a code, 4 digits. The AVR then records the time and sends it to a text document on a PC, hooked up via serial probably. Either that or it stores the info onboard and is then downloaded weekly.
What I ask from you guys is to help me out a little and give me a few pointers as to which direction I should go, what AVR should I use, do I need any other components?
Here is a list of what I have so far:
An AVR (not sure which one yet)
A 2x16 LCD
A 12 key keypad
Thanks for helping me out,