Comments on: Tiny25 and Tiny2313 kits http://tinkerlog.com/2009/03/13/tiny25-and-tiny2313-kits/ Alex' blog Thu, 09 Sep 2010 03:11:28 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: Alex http://tinkerlog.com/2009/03/13/tiny25-and-tiny2313-kits/comment-page-1/#comment-84165 Alex Wed, 26 Aug 2009 20:31:18 +0000 http://tinkerlog.com/?p=512#comment-84165 Hi Jim, actually pin 4 is already GND, I think Franks means from pin 3 to pin 4. But no, I haven't tested that yet. For the ISP problem, most of the time the programmer is not able to pull the lines up, that are connected to LEDs or other loads. For example, for the USBtinyISP, that I am using, I had to short two resistors to be able to drive lines that were connected to LEDs. Here is a post on Lady Ada's forum: http://forums.ladyada.net/viewtopic.php?f=20&t=8210 Cheers, Alex Hi Jim,
actually pin 4 is already GND, I think Franks means from pin 3 to pin 4. But no, I haven’t tested that yet.

For the ISP problem, most of the time the programmer is not able to pull the lines up, that are connected to LEDs or other loads. For example, for the USBtinyISP, that I am using, I had to short two resistors to be able to drive lines that were connected to LEDs. Here is a post on Lady Ada’s forum: http://forums.ladyada.net/viewtopic.php?f=20&t=8210

Cheers,
Alex

]]> By: Jim http://tinkerlog.com/2009/03/13/tiny25-and-tiny2313-kits/comment-page-1/#comment-84147 Jim Wed, 26 Aug 2009 13:41:24 +0000 http://tinkerlog.com/?p=512#comment-84147 Thanks Alex, super cool PCB, built mine last night and works like a dream. Can you confirm that jumping Pin 4 of the chip socket to ground will allow me to work with a Tiny13? Is it possible to program the chip when it is still in-circuit? I though this was the whole point of ISP. I get errors if I try and flash a new hex to the chip if it has load (LED's on PB0 and PB1) on the pins. If I disconnect the LED's from Ground, everything works fine. Thanks Alex, super cool PCB, built mine last night and works like a dream. Can you confirm that jumping Pin 4 of the chip socket to ground will allow me to work with a Tiny13?

Is it possible to program the chip when it is still in-circuit? I though this was the whole point of ISP. I get errors if I try and flash a new hex to the chip if it has load (LED’s on PB0 and PB1) on the pins. If I disconnect the LED’s from Ground, everything works fine.

]]> By: Frank http://tinkerlog.com/2009/03/13/tiny25-and-tiny2313-kits/comment-page-1/#comment-79924 Frank Fri, 19 Jun 2009 10:04:11 +0000 http://tinkerlog.com/?p=512#comment-79924 If you put a jumper from pin 4 (XTAL2) to ground, you can use the socket for most 8pin AVRs with internal clock. If you put a jumper from pin 4 (XTAL2) to ground, you can use the socket for most 8pin AVRs with internal clock.

]]> By: Alex http://tinkerlog.com/2009/03/13/tiny25-and-tiny2313-kits/comment-page-1/#comment-68774 Alex Sat, 28 Mar 2009 07:15:23 +0000 http://tinkerlog.com/?p=512#comment-68774 Ok, I see. I will look into that for the next batch. Thanks for the feedback. Ok, I see. I will look into that for the next batch. Thanks for the feedback.

]]> By: xyz http://tinkerlog.com/2009/03/13/tiny25-and-tiny2313-kits/comment-page-1/#comment-68630 xyz Fri, 27 Mar 2009 19:24:16 +0000 http://tinkerlog.com/?p=512#comment-68630 Only complaint I have is working out which way to plug a ftdi cable onto the 2313 board. The silkscreen just indicates pin 1. Compare with the silkscreen on a boarduino which makes it a lot more obvious. http://www.flickr.com/photos/ladyada/1466434148/sizes/l/ Other than that they are great. Smaller, neater and easier than building the same thing on stripboard. Only complaint I have is working out which way to plug a ftdi cable onto the 2313 board. The silkscreen just indicates pin 1.

Compare with the silkscreen on a boarduino which makes it a lot more obvious.
http://www.flickr.com/photos/ladyada/1466434148/sizes/l/

Other than that they are great. Smaller, neater and easier than building the same thing on stripboard.

]]> By: Marcus http://tinkerlog.com/2009/03/13/tiny25-and-tiny2313-kits/comment-page-1/#comment-65703 Marcus Sun, 15 Mar 2009 16:14:48 +0000 http://tinkerlog.com/?p=512#comment-65703 Grats that you finished it! These are great help! Well done! Looking forward to your next tinkering! Grats that you finished it!
These are great help! Well done! Looking forward to your next tinkering!

]]> By: Alex http://tinkerlog.com/2009/03/13/tiny25-and-tiny2313-kits/comment-page-1/#comment-65577 Alex Sun, 15 Mar 2009 00:53:53 +0000 http://tinkerlog.com/?p=512#comment-65577 Yes, ATtiny13 is also possible, but it can't use the resonator (no XTAL pins). And yes, the boards alone are also availabe in the shop. Yes, ATtiny13 is also possible, but it can’t use the resonator (no XTAL pins).
And yes, the boards alone are also availabe in the shop.

]]> By: Dave Cole http://tinkerlog.com/2009/03/13/tiny25-and-tiny2313-kits/comment-page-1/#comment-65569 Dave Cole Sun, 15 Mar 2009 00:09:21 +0000 http://tinkerlog.com/?p=512#comment-65569 Could you use an ATTiny13 in the Tiny25 header kit? Also, have you considered selling just the boards alone, not in kit form? Great idea; cool execution. Best o' luck. Could you use an ATTiny13 in the Tiny25 header kit?

Also, have you considered selling just the boards alone, not in kit form?

Great idea; cool execution. Best o’ luck.

]]> By: Alex http://tinkerlog.com/2009/03/13/tiny25-and-tiny2313-kits/comment-page-1/#comment-65391 Alex Fri, 13 Mar 2009 23:14:46 +0000 http://tinkerlog.com/?p=512#comment-65391 Good catch, corrected. Good catch, corrected.

]]> By: Ed Davies http://tinkerlog.com/2009/03/13/tiny25-and-tiny2313-kits/comment-page-1/#comment-65377 Ed Davies Fri, 13 Mar 2009 21:53:56 +0000 http://tinkerlog.com/?p=512#comment-65377 Tiny2313 kit parts list: I think you mean 20-pin socket, not 8-pin. Tiny2313 kit parts list: I think you mean 20-pin socket, not 8-pin.

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