Author Topic: old MCUs for sale? (Read 3294 times)

dellagd · « **on:** June 27, 2009, 07:35:36 AM »

hey guys,
anyone have an excess of working MCUs that they would be willing to sell, like $50 boards or arduinos? I need some MCUs and was wondering if you guys would be willing to sell before I go off and spen $60+?

SmAsH · « **Reply #1 on:** June 27, 2009, 04:14:35 PM »

why not make your own? its easier and cheaper... and more rewarding.
i have a couple of $50 boards if you really want something?

dellagd · « **Reply #2 on:** June 28, 2009, 02:33:01 PM »

how cheap?

SmAsH · « **Reply #3 on:** June 29, 2009, 12:45:04 AM »

we can haggle if you want... whats your price range?

dellagd · « **Reply #4 on:** June 29, 2009, 07:35:00 AM »

well for a $50 board, I'd say $10 - $30

SmAsH · « **Reply #5 on:** June 29, 2009, 03:50:01 PM »

fair enough, hows $25 + shipping sound? (let the haggling begin

)

Razor Concepts · « **Reply #6 on:** June 29, 2009, 04:28:29 PM »

You can buy Olimex development boards for any sized AVR for roughly $15, its all in a nice pcb with plenty of space to solder headers along with reset button and serial connection.

GearMotion · « **Reply #7 on:** June 29, 2009, 05:44:09 PM »

Or this:

for $14.99 and it has a bootloader in the microcontroller.

http://www.circuitgizmos.com/products/cgbbb/cgbbb.shtml

SmAsH · « **Reply #8 on:** June 30, 2009, 12:41:06 AM »

i cant believe i didn't suggest the bbb myself! its a great board!
@gearmotion, did you fix the shipping issue yet? i want to order some boards NAO!

GearMotion · « **Reply #9 on:** June 30, 2009, 07:09:48 AM »

Quote from: SmAsH on June 30, 2009, 12:41:06 AM

i cant believe i didn't suggest the bbb myself! its a great board!
@gearmotion, did you fix the shipping issue yet? i want to order some boards NAO!

It _should_ be fixed. Let me know if it is not.

dellagd · « **Reply #10 on:** June 30, 2009, 07:57:08 AM »

well how bout $20, but how much is shipping?

dellagd · « **Reply #11 on:** June 30, 2009, 08:01:50 AM »

oh and I saw the bbb, looks really good, and, excuse my noobishness, but what exactly does "comes with a bootloader" mean?

Finnik · « **Reply #12 on:** June 30, 2009, 12:04:19 PM »

It means that the microcontroller has a bootloader pre-installed, so that you can program it without a hardware programmer.

GearMotion · « **Reply #13 on:** June 30, 2009, 12:24:40 PM »

Quote from: dellagd on June 30, 2009, 08:01:50 AM

oh and I saw the bbb, looks really good, and, excuse my noobishness, but what exactly does "comes with a bootloader" mean?

A new microcontroller fresh from Atmel has nothing in its flash. In order to put your program into the microcontroller, you need an ISP programmer bit of hardware and software.

A microcontroller with a bootloader has a little program in it already that lets you load your program via the serial port.

This may or may not have an appeal to you.

dellagd · « **Reply #14 on:** June 30, 2009, 01:29:33 PM »

so do I still need this?
http://www.sparkfun.com/commerce/product_info.php?products_id=14

GearMotion · « **Reply #15 on:** June 30, 2009, 02:25:20 PM »

You could use this:

http://www.sparkfun.com/commerce/product_info.php?products_id=133

instead.

kpmcgurk · « **Reply #16 on:** June 30, 2009, 07:32:22 PM »

in addition to the BBB there is this... which is the same as what smash was going to sell to you, but not soldered yet

http://www.circuitgizmos.com/products/cgsorkit1/cgsorkit1.shtml

SmAsH · « **Reply #17 on:** July 01, 2009, 12:53:36 AM »

the kit is good because while building the board you learn so much about the mcu... and most people are able to memorize the pins on it... i know i can!

dellagd · « **Reply #18 on:** July 01, 2009, 06:11:46 AM »

yeah, I probably would get that, but when I made a $50 board, it just wont work! I cant find the problem!

GearMotion · « **Reply #19 on:** July 01, 2009, 07:08:55 AM »

Quote from: dellagd on July 01, 2009, 06:11:46 AM

yeah, I probably would get that, but when I made a $50 board, it just wont work! I cant find the problem!

It is a lot easier to get the BBB working.

dellagd · « **Reply #20 on:** July 01, 2009, 09:44:12 AM »

yeah, since it has a PCB

dellagd · « **Reply #21 on:** July 02, 2009, 07:24:31 AM »

what about this?
it looks good.
http://store.fungizmos.com/index.php?main_page=product_info&products_id=180&zenid=0d8f480c7b4846e667976afeeb52c27c

dellagd · « **Reply #22 on:** July 02, 2009, 07:34:05 AM »

oh! also a quick question. does anyone know where I can get male headers that on one side plug into a breadboard, and on the other lets you plug a servo into it or something. regular ones dont work because one side is too short.

GearMotion · « **Reply #23 on:** July 02, 2009, 11:14:45 AM »

http://digikey.com/scripts/partsearch.dll?Detail&name=S1242E-36-ND

RoboChan · « **Reply #24 on:** July 02, 2009, 11:28:04 AM »

i think there should be a for sale/wanted fourm.

GearMotion · « **Reply #25 on:** July 02, 2009, 11:32:17 AM »

Quote from: RoboChan on July 02, 2009, 11:28:04 AM

i think there should be a for sale/wanted fourm.

Well, perhaps a "Where to buy" list?

GearMotion · « **Reply #26 on:** July 02, 2009, 11:35:54 AM »

Quote from: dellagd on July 02, 2009, 07:34:05 AM

oh! also a quick question. does anyone know where I can get male headers that on one side plug into a breadboard, and on the other lets you plug a servo into it or something. regular ones dont work because one side is too short.

You can also solder two together via their short sides.

dellagd · « **Reply #27 on:** July 02, 2009, 12:36:57 PM »

hmm, never thought of that.

GearMotion · « **Reply #28 on:** July 09, 2009, 05:06:19 PM »

Here is a picture of the adapter with pin 1 annotation.

dellagd · « **Reply #29 on:** July 13, 2009, 05:55:40 AM »

ok put together a bbb and succesfully programmed it.

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Author Topic: old MCUs for sale? (Read 3294 times)

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