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[avr-chat] ATmega88 + triple 7 Segment Display (CC)
From: |
Student1 |
Subject: |
[avr-chat] ATmega88 + triple 7 Segment Display (CC) |
Date: |
Wed, 27 Feb 2008 00:35:57 -0800 (PST) |
Hi,
I've completed a circuit for an ATmega88 that is to be programmed through
Serial Port. I've tested it with LED and now I want to hook up a triple 7
segment display (common cathode) to give it a 10 minute counter. 000 to 959
(before resetting).
So my question is, now that I have purchased a 7 segment CC, how do I do the
circuitry to attach it to the AVR properly. From what I have seen, a single
7 segment display has 10 inputs (2x GND, A->G, dp). My triple 7 segment
displays has 11 pins on it.
And from looking at the ATmega88 specs sheets, it has 6 PORTB, 6 PORTC, 8
PORTD which I can use for programming. Although PORTB0 is for input capture
for timer/counter (what does this mean?).
[img]http://img120.imageshack.us/img120/2598/img0820kf7.jpg[/img]
http://img120.imageshack.us/img120/2598/img0820kf7.jpg
[img]http://img101.imageshack.us/img101/892/img0822ot6.jpg[/img]
http://img101.imageshack.us/img101/892/img0822ot6.jpg
After I get this done, the next part will be working on the programming.
Hopefully a lot of the capabilities from the delay program will work for
this one.
Thanks
Maybe I should add the 7 Segment CC P/N is LEDSM-314220 (although an online
search turned up nothing). It says RGE30361LP on the side as well.
On the back 6 pins at top and 5 points at bottom.
--
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- [avr-chat] ATmega88 + triple 7 Segment Display (CC),
Student1 <=