I couldn't resist ordering one of these boards:
http://www.ebay.co.uk/itm/151278...
for £9.30 including postage.
I'll let you know what I think of it when it arrives.
It seems to be based on this PCB from ITEAD:
I couldn't resist ordering one of these boards:
http://www.ebay.co.uk/itm/151278...
for £9.30 including postage.
I'll let you know what I think of it when it arrives.
It seems to be based on this PCB from ITEAD:
for £9.30 including postage.
I see some discrepancy about this board.
For a complete noob m128 is an overkill.
Most noobs won't be even able to RTFM of m128, not mentioning respective ANs. It is just too big.
M32 or M162 in PDIP + breadboard are IMHO better noob propositions (JTAGICEMk1) as one can buy 5 of them for £10 locally and it is very easy to wire that. Of course if someone owns Mk2 and up then m1284-PU is always a noob winner.
And for someone who wants something serious - wouldn't it be grand if it had at least 32kB of external SRAM?
It says it is an ATmega128A.
It isn't claimed to be intended for beginners.
It says it is an ATmega128A.
It says it is an ATmega128A.
Anyway, it is definitely usable.
They have also routed PEN to pin header!
rqyem
For a complete noob m128 is an overkill.
The photo shows a chip manufactured in 2006.
I would guess that current deliveries will use recent chips. e.g. mega128A
I am sure that Leon will get on fine with the bare dev board.
However, for a similar amount of money, you could buy an Arduino MEGA clone e.g. [url]http://www.ebay.co.uk/itm/Mega-2560-R3-ATmega2560-16AU-Board-Arduino-com... for £10.95 from UK
or [url]http://www.ebay.co.uk/itm/Microcontroller-Board-ATmega2560-16AU-USB-Cabl... for £8.55 from China.
Ok. You need an ATMEL-ICE, JTAGICE-3, DRAGON, ... to run the JTAG.
But personally, I find that the built-in UART comms + bootloader make any regular Arduino ideal for prototyping. And of course, all the shields are interchangeable.
And actually, I prefer the UNO as a general purpose platform.
David.
Nothing says you HAVE to use every last resource in it
So if I were to chose some stuff for playing with avr8s then it is either a bucket of m16/m32 or one m128+SRAM. But it is mood dependent.
It isn't claimed to be intended for beginners.
Just look at their description:
2. The AD transform reference voltage added filter inductance and capacitance;
3. Through the jump line can choose different frequency external crystals;
4. All are drawn and mark IO mouth;
5. ISP and JTAG interface are drawn and mark;
6. Reliable reset circuit;
7. PA1, PA0 out two LED for simple test
If there is any documentation, it's likely to be to a similar standard - again, not helpful for a beginner.
And support? Forget it!
This is why they're so cheap :!:
#NoSuchThingAsAFreeLunch
The board has just been delivered. It has got a Mega 128A.
I make that 9 days delivery. Pretty good service from China Post!
And I bet the date code on the 128A is 2014.
David.
The only marking that looks like a date code is AU 1333. Does that make any sense?
Week 33, Year 2013.
So I do NOT win a coconut!
David.
That's good to know. The earlier chips seem to have had several errata.