12F683 (easy led chaser)

killer skittle · Jan 8, 2009

Bear with me on this, im totally new to this as many of you guys know! i have a working programmer for this chip that i built when i made modded xbox 360 controllers! but i stopped doing that, and now that i have a couple of those chips left over i might as well do something with them! i would like to make a led chaser i know that this particular chip has 6 I/O so i was thinking that i could run 6 leds off of with out CharliePlexing. As for all the tutorial sites out there i love them but most (all) of them dont use any 8 pin chips so i have been googling late into the night to guide me in any way! but nothing so i figured i would ask some REAL intelligent people! so any help would be GREATLY welcomed!
THX,
nick

futz · Jan 8, 2009

killer skittle said:
i would like to make a led chaser i know that this particular chip has 6 I/O so i was thinking that i could run 6 leds off of with out CharliePlexing.

Seems to me I remember one of those pins being input-only. Check it out. I could be wrong.

killer skittle · Jan 8, 2009

**broken link removed**
wow fast reply!
Yes you are right well could i do it with 5 leds? the input only could be a button?

futz · Jan 8, 2009

killer skittle said:
**broken link removed**
wow fast reply!
Yes you are right well could i do it with 5 leds? the input only could be a button?

Of course.

be80be · Jan 8, 2009

No your right

Seems to me I remember one of those pins being input-only. Check it out. I could be wrong.

you have 5 pins to play with but. It's not hard to lite 10 leds with it there is some code you can look at here. **broken link removed** It's for a 12f675 but you can change it to 12F683 It' shows you how to lite 8 leds hope this helps
Burt

killer skittle · Jan 8, 2009

**broken link removed**

Just found this diadram with included HEX code! will it work for my chip, i know it says for 12f629?

futz · Jan 8, 2009

killer skittle said:
**broken link removed**

Just found this diadram with included HEX code! will it work for my chip, i know it says for 12f629?

The hex code almost certainly won't work. If you could find source you could alter it to suit though.

Pommie · Jan 8, 2009

As long as the programmer hasn't been lazy it should work.

Mike.

Pommie · Jan 8, 2009

futz said:
The hex code almost certainly won't work. If you could find source you could alter it to suit though.

I can't see any reason it won't work except the extra ram.

Mike.

futz · Jan 8, 2009

Pommie said:
I can't see any reason it won't work except the extra ram.

Mike.

Ah, excellent! I was too lazy to compare datasheets.

be80be · Jan 8, 2009

If you Look at the site I showed you the diagram you have there is the same as thay used in the Pickit1 for the leds and I think he wrote the code for it.Hey thay changed it it here **broken link removed** sorry

Mike - K8LH · Jan 9, 2009

I did a Knight-Rider demo' for the 12F683 using 10 LEDs a long time ago (Jan-06).

You can find the assembly language source code in the following thread;

Yet Another Knight Rider LED Project

Regards, Mike

killer skittle · Jan 9, 2009

Mike said:
I did a Knight-Rider demo' for the 12F683 using 10 LEDs a long time ago (Jan-06).

You can find the assembly language source code in the following thread;

Yet Another Knight Rider LED Project

Regards, Mike

Thats awesome but what is the "78L05 chip"?

3v0 · Jan 9, 2009

killer skittle said:
Thats awesome but what is the "78L05 chip"?

5 volt regulator.

killer skittle · Jan 9, 2009

First if i have only a 5V source do i need ^^^^^that thing(78L05)^^^^^?
And second i compiled, i think, does this look right:

Code:

:020000040000FA
:0600000083018501462882
:08000800F000030EF10083017A
:100010000A08F2000408F3008C1083161F308500D4
:10002000831234088400350885000005031D10384C
:10003000350400043F3A831685008312B40A031086
:10004000B50D3508083A03192028283A031D3D2824
:100050000130B5003030B4003608B1000739B000C7
:10006000B10D310E0739B100370C0739B300360C2A
:10007000B200B20C320E0739B20073088400720865
:100080008A00710E8300F00E700E0900073099008F
:10009000850183169F01850170308F000F1D4E284A
:1000A00083120130B5003030B400B001B101B201AB
:1000B000B301B7010130B600B80183168C14F930D2
:1000C000920083128B170B1712154E30BA00203096
:1000D000B900B90B6928BA0B6928381C77280310B6
:1000E000B60DB70D371D65283810B70CB60C0310C8
:1000F000B70CB60C031C65283814B60DB70D6F2865
:02400E00C433B9
:00000001FF

futz · Jan 9, 2009

killer skittle said:

And second i compiled, i think, does this look right:

Code:

:020000040000FA
:0600000083018501462882
:08000800F000030EF10083017A
:100010000A08F2000408F3008C1083161F308500D4
:10002000831234088400350885000005031D10384C
:10003000350400043F3A831685008312B40A031086
:10004000B50D3508083A03192028283A031D3D2824
:100050000130B5003030B4003608B1000739B000C7
:10006000B10D310E0739B100370C0739B300360C2A
:10007000B200B20C320E0739B20073088400720865
:100080008A00710E8300F00E700E0900073099008F
:10009000850183169F01850170308F000F1D4E284A
:1000A00083120130B5003030B400B001B101B201AB
:1000B000B301B7010130B600B80183168C14F930D2
:1000C000920083128B170B1712154E30BA00203096
:1000D000B900B90B6928BA0B6928381C77280310B6
:1000E000B60DB70D371D65283810B70CB60C0310C8
:1000F000B70CB60C031C65283814B60DB70D6F2865
:02400E00C433B9
:00000001FF

Hahahaha! Skittle, posting hex and asking if it looks ok will get you nothing but laughs. Ya, it looks like hex. So what? No way am I about to go thru that and see if it's right. Post source code, not hex. Trust the compiler or assembler to at least get that part right.

Pommie · Jan 9, 2009

killer skittle said:
First if i have only a 5V source do i need ^^^^^that thing(78L05)^^^^^?

As long as it is a regulated 5V then you don't need the 78L05.

Mike.

killer skittle · Jan 9, 2009

futz said:
Hahahaha! Skittle, posting hex and asking if it looks ok will get you nothing but laughs. Ya, it looks like hex. So what? No way am I about to go thru that and see if it's right. Post source code, not hex. Trust the compiler or assembler to at least get that part right.

LOL! i know its hex!!! ok ill try it! ha ha silly NOOB

killer skittle · Jan 9, 2009

IT LIVES!!!! it works awesome, i will be putting it in my xbox 360 controller!!! about 50 smd LEDs! going across one side to another

!!! i will post my progress if you want!

Mike - K8LH · Jan 10, 2009

Happy to hear you have it running. Not sure that circuit will drive 50 LEDs though. It's a Charlieplexed matrix which means it's pretty current limited and brightness limited already.

Regards, Mike

12F683 (easy led chaser)

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