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Topic: The 1284P, a sleeping beauty on a $9 UNO size board? (Read 14586 times) previous topic - next topic

mrburnette


I just ordered a sleeping beauty.  What are the specs on the 16 MHz crystal? (part number?  datasheet?)


XDL 16.0000

wanderson


The Pi-Duino-BB schematic is now posted on http://www.rasmicro.com/Sleeping_Beauty/
Roger


First thanks for posting the schematic.  I have tried putting one together and have an issue with the 2x13 header for connecting to the Pi.

As you can see in the attached image, the location for this header does not appear to have any copper pads for soldering the connector.  I thought that might be plated vias and capable of being soldered using hot air, but that doesn't appear to be the case.  Anyone know what type of connector this footprint would be for?


scrumfled

#32
Sep 05, 2016, 12:47 pm Last Edit: Sep 05, 2016, 12:54 pm by scrumfled
.

mcnobby

I wish there was a 1284P version of the Nano, same layout/pinout etc, just 328 changed for 1284 !

I use nano's in so many things.. so small and versatile !



http://www.youtube.com/user/Recovered
http://www.smartshow.lighting

scrumfled

#34
Sep 06, 2016, 06:08 pm Last Edit: Sep 06, 2016, 06:11 pm by scrumfled
Have you seen the Bobweeny? veeeery interesting little board...



http://www.crossroadsfencing.com/BobuinoRev17/

Budvar10

#35
Sep 06, 2016, 07:04 pm Last Edit: Sep 06, 2016, 07:08 pm by Budvar10
Of course, CrossRoad's board. He is a member on the forum. He has several different types.
Here is mine in UNO like design:
Arduino clone with ATmega1284P   http://forum.arduino.cc/index.php?topic=277260.0

mcnobby

Have you seen the Bobweeny? veeeery interesting little board...



http://www.crossroadsfencing.com/BobuinoRev17/

Very Nice, I had seen that, I forgot to mention Im interested in a SMD version as it needs to be very low profile.. im not sure anyone has done one of those yet
http://www.youtube.com/user/Recovered
http://www.smartshow.lighting

Budvar10

Jack Christensen has a SMD version. Somebody it sells on ebay.
Arduino clone with ATmega1284P   http://forum.arduino.cc/index.php?topic=277260.0

hansibull

MightyCore -  ATmega1284, mega644, mega324, mega164, mega32, mega16, mega8535
Github.com/MCUdude/MightyCore

MiniCore - ATmega8, mega48, mega88, mega168, mega328
Github.com/MCUdude/MiniCore

mcnobby

Cool, but I dont think it is pin/pin compatible with Nano, shame... nice looking board though :)
http://www.youtube.com/user/Recovered
http://www.smartshow.lighting

hansibull

I belive it's impossible to make it the same form factor as the Nano; the TQFP44 is simply too large if so, the board needs to be atleast 0.1" wider. And what about the additional pins the 1284 got?
MightyCore -  ATmega1284, mega644, mega324, mega164, mega32, mega16, mega8535
Github.com/MCUdude/MightyCore

MiniCore - ATmega8, mega48, mega88, mega168, mega328
Github.com/MCUdude/MiniCore

westfw

Quote
the TQFP44 is simply too large
There is also VQFN44 that might work.  0.5mm pin spacing, plus the substrate, are both a bit annoying for amateur assembly...

Quote
what about the additional pins
You don't HAVE to connect all the pins that exist.  Most of the Uno-sized 1284 designs don't connect all the pins.
(Alas, this is where all the various different variations show up.  Decided that you really want the second UART on D0/D1 and "Serial" connected only to USB, or similar...)

CrossRoads

Designing & building electrical circuits for over 25 years.  Screw Shield for Mega/Due/Uno,  Bobuino with ATMega1284P, & other '328P & '1284P creations & offerings at  my website.

larryd

No technical PMs.
If you are asked a question, please respond with an answer.
If you are asked for more information, please supply it.
If you need clarification, ask for help.

firebirduino

@mcnobby

Technically the Nano1284P exists.  A UU module over the RadioNano can be the Nano1284P

http://www.firebirduino.com/radio_nano/index.html

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