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Topic: Why is the Uno of Make:Special Edition different (Read 2303 times) previous topic - next topic

yumengwang

Feb 01, 2015, 04:08 pm Last Edit: Feb 01, 2015, 04:09 pm by yumengwang
Hi,

I have two Arduino Unos and the one that has Make: Special Edition printed on is different. Instead of a regular ATmega328, there's a tiny chip on the same location of the board. What is this chip? What is the difference?


Thank you very much!


johnwasser

That is an ATmega328P in a smaller physical package.
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Shuey

That is an ATmega chip the heart of the Arduino. Silly.

AlxDroidDev

It is special because of the silk screen. Other than that, it is just a Arduino UNO SMD
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Shield for DS1337+, DS1624 and AT24C1024B (RTC, temp & mem): http://forum.arduino.cc/index.php/topic,126197.0.html
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oscareale

I read that on the Make edition you have to be careful, since the chip (where an ATMega would usually be) is soldered to the board.
I wanted to purchase one, but since I've just started I don't want to risk burning out anything, and not being able to replace something like the chip.

Isaac96

Yeah, the SMD edition isn't so great. I have burned out my 328P once and removed it to try it in breadboards countless times.
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GoForSmoke

#6
Jun 18, 2015, 08:38 pm Last Edit: Jun 18, 2015, 08:38 pm by GoForSmoke
Of course MAKE sells the board with the SMD chip.
The name is MAKE, not FIX. But IMO, BUY should be in there somewhere.
1) http://gammon.com.au/blink  <-- tasking Arduino 1-2-3
2) http://gammon.com.au/serial <-- techniques howto
3) http://gammon.com.au/interrupts
Your sketch can sense ongoing process events in time.
Your sketch can make events to control it over time.

dmjlambert


GoForSmoke

#8
Jun 28, 2015, 02:19 am Last Edit: Jun 28, 2015, 02:20 am by GoForSmoke
It's not a dead end, unless you burn a pin and can't replace SMD (I can't).

Use it to program AVR's on (bread)boards with software provided at the link below being extra nice.
Try new things out on home rolled duinos. At 10 or more qty, 328P-PU (DIP) gets pretty cheap.

Everything you need to make a 328P or 1284P Duino.


I found this to try out with ATmega1284P chips.

It's made for ATmega16 which are pin for pin with ATmega1284 but RAM, etc, as an ATmega168.

I keep looking for a 328P version but so far the 28 pin ZIF dev boards are all PIC/8051.

1) http://gammon.com.au/blink  <-- tasking Arduino 1-2-3
2) http://gammon.com.au/serial <-- techniques howto
3) http://gammon.com.au/interrupts
Your sketch can sense ongoing process events in time.
Your sketch can make events to control it over time.

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