Full Version : ATmega88 + triple 7 Segment Display (CC)
avr >>TECHNICAL & HARDWARE >>ATmega88 + triple 7 Segment Display (CC)


Student1- 02-27-2008
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

Student1- 02-27-2008
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.



Forumer™ is Voted #1 Free Forum Hosting provider
Build your own community today with the largest message board hosting company.