Smallest prop board?

Franklin

Which is the smallest form factor board for the prop with all the parts needed to be standalone?

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- Stephen

VIRAND

Hmmm... When people cut around the Prop (+crystal +reset button +eeprom) out of a Protoboard? ...
Or maybe... doesn't Parallax or Gadgetgangster have something with a QFN prop between the pins of a DIP40 socket?

hover1

With or without proto type area?

The Schmartboard (27150) is pretty small, but The Propeller Servo Controller (28830)·is the smallest of the Parallax products that is fully programmable. But you do not have access to P19-P26 on the Servo controller.

Or have a look at Matt's offerings at:

http://www.propmodule.com/

Jim

Franklin said...
Which is the smallest form factor board for the prop with all the parts needed to be standalone?

Alsowolfman

don't forget the propstick usb http://www.parallax.com/Store/Microcontrollers/PropellerChips/tabid/142/CategoryID/18/List/0/SortField/0/Level/a/ProductID/411/Default.aspx
all pins and programmer on board in a 40dip form factor, but 80 dollars.

if you don't need on board usb then i would think that the prop module is best as you can get it with a boost converter. that lets you run on a 1.8-5.5 volt range which if you are making a small battery powered project, would allow you to save space on batteries, 2 alkaline needed instead of 4 for a regular regulator, or even lithium rechargeables.

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My head is pasming!

Leon

It depends on what is meant by "standalone". I think I could get down to 2 cm square with a QFN Propeller and components on both sides.

Leon

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Amateur radio callsign: G1HSM

Post Edited (Leon) : 12/7/2009 10:10:36 PM GMT

hover1

Good Call!

I forgot about that one, although I have one waiting for the right time to use it.

Jim

Alsowolfman said...
don't forget the propstick usb http://www.parallax.com/Store/Microcontrollers/PropellerChips/tabid/142/CategoryID/18/List/0/SortField/0/Level/a/ProductID/411/Default.aspx
all pins and programmer on board in a 40dip form factor, but 80 dollars.

if you don't need on board usb then i would think that the prop module is best as you can get it with a boost converter. that lets you run on a 1.8-5.5 volt range which if you are making a small battery powered project, would allow you to save space on batteries, 2 alkaline needed instead of 4 for a regular regulator, or even lithium rechargeables.

Phil Pilgrim (PhiPi)

The newly-announced Propeller Backpack measures 1.5" x 1.35", is fully self-contained with onboard A/V circuitry, and has an 8-bit expansion port that includes two analog input channels.

-Phil

hover1

Nice job Phil!

I was in the middle of reading the specs, so I couldn't comment/recomend it. Still reading. I think I want!

Jim

Phil Pilgrim (PhiPi) said...
The newly-announced Propeller Backpack measures 1.5" x 1.35", is fully self-contained with onboard A/V circuitry, and has an 8-bit expansion port that includes two analog input channels.

-Phil

Nick McClick

I think it's the propmodule 1x1 (mctriva is back-ordered until early jan, although I still have a few in stock). That's 1in. square.

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kwinn

mctrivia's propmod-us (0.75x1.1 approx) and propmod 1x1 are pretty small complete systems and the propmod-us also has on board u-sd.

Leon

I just checked to see if 2 cm square was feasible:

www.leonheller.com/Propeller/QFN.gif

I wouldn't waste space with the usual Prop Plug connector - some sort of adapter would be needed.

If Parallax gave me some dice I could design something much smaller using chip-on-board, my PCB software supports it.

Leon

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Amateur radio callsign: G1HSM

Post Edited (Leon) : 12/7/2009 10:31:32 PM GMT

Graham Stabler

Depending on what you are wanting to do with it you might consider Bean's prop dongle, I use it a lot, just plugs into USB port.

Graham

Cluso99

You will have to explain your requirements...

RamBlade is 1.2"x1.9" and contains prop, xtal, eeprom, 512KB sram, microSD, optional 3V3 regulator, and has 2 pins to the outside world. It can run ZiCog and CPM2.2.

RamBlade can plug into other pcbs or standalone (depends on your standalone definition)
*Standalone (with external TV and PS2 Keyboard): It uses 1-pin video 80x25. Currently, it can connect to a PS2 Keyboard using 2 pins (a pin has to be cut from the SRAM) but you will need to wire this via a pin header connector (no minidin6 connector). I am working on a 1-pin keyboard driver. A 5V regulated supply is required.
*Standalone (with 3V3 2-pin serial port for external terminal or pc or microbased board for the terminal & I/O).

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Links to other interesting threads:

· Home of the MultiBladeProps: TriBlade,·RamBlade,·SixBlade, website
· Single Board Computer:·3 Propeller ICs·and a·TriBladeProp board (ZiCog Z80 Emulator)
· Prop Tools under Development or Completed (Index)
· Emulators: CPUs Z80 etc; Micros Altair etc;· Terminals·VT100 etc; (Index) ZiCog (Z80) , MoCog (6809)
· Search the Propeller forums·(uses advanced Google search)
My cruising website is: ·www.bluemagic.biz·· MultiBladeProp is: www.bluemagic.biz/cluso.htm

mctrivia

Pretty sure my 1x1 is the smallest. I am out of stock st the moment but will be fixing my stocking issues next year.

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24 bit LCD Breakout Board now in. $21.99 has backlight driver and touch sensitive decoder.

Michael O'Brien

Stephen,
Hi, try the Spin Stamp by Parallax - it is a reduced form of the PropStick USB - except at 24 pins it is virtually the same form as a basic stamp.
You will need a prop plug or clip to program it, and only 18 of the normal A registers's 32 pins are available.
For myself I am looking at maximizing the ratio of·Cog/M^2 - therefore on a prop protoboard you would get 40 cogs at a ration of 3.3 cogs/Inch^2 with 4 of these.

http://www.parallax.com/Store/Microcontrollers/PropellerTools/tabid/143/CategoryID/19/List/0/SortField/0/Level/a/ProductID/448/Default.aspx

Smaller than that used to be the uOLED-96 Prop at 10 pins (4 A register pins available) where a propeller chip ran a 0.96 inch OLED display.
It does not look to be available anymore at 4D Systems anymore after Parallax discontinued it last year.

Same form factor
http://www.4dsystems.com.au/prod.php?id=9

/michael

Cluso99

Spin Stamp wins the smallest contest 1.2"x0.63". But it depends on what you define as standalone.

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Links to other interesting threads:

· Home of the MultiBladeProps: TriBlade,·RamBlade,·SixBlade, website
· Single Board Computer:·3 Propeller ICs·and a·TriBladeProp board (ZiCog Z80 Emulator)
· Prop Tools under Development or Completed (Index)
· Emulators: CPUs Z80 etc; Micros Altair etc;· Terminals·VT100 etc; (Index) ZiCog (Z80) , MoCog (6809)
· Search the Propeller forums·(uses advanced Google search)
My cruising website is: ·www.bluemagic.biz·· MultiBladeProp is: www.bluemagic.biz/cluso.htm

Franklin

Thanks guys, I'll look over the options. I have the propeller proto board I'm using to write the code but I want to put the electronics in a duplex sized electrical box and also have an xbee in there. I think I could squeeze it all in whit what I have but it would be nice to have a little more room. At this point power is not an issue as I have a 12v battery out of a large UPS and 20 watts of solar cells. (overkill, I know but I had them)

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- Stephen

Jay Kickliter

I've been working on a board for a while, and with the help of folks around here, I finally ordered a couple prototype boards today. It's definitely not the smallest, but it's 1.4x2.2 in, with 95 parts (including 64 LED's), complete with USB and LiPoly charging. I'll be amazed if the first prototype works however.