Micro OLED

Silver242

Hello,

I have OLED _128·_G1, and i connected to prop plug , but· when i want to put some·images·in the micro SD by using Graphics composer it say Unable to find a device ,and· there is nothing wrong with the connctions between the prop plug and the oled.

OLED·pins········ Prop plug pins
1 to Vdd
·· 2········ to············ RX
···3········ to············ TX
···4 to GND··· and·····Vss

Any help will be appreciated.

TonyWaite

Hi,
Just checking my understanding of your problem:
The Prop Plug is used to program microcontroller boards using the Propeller chip; it is this chip that talks to the display unit.
Maybe I have missed something, but I want to check that you are aware that you need a microcontroller board in your setup.
Regards,

T o n y

TonyWaite

Hi,
There is a device _similar_ to the Prop Plug, which can be used to program your display unit directly from a PC: the micro-USB module.
I can't see this particular item for sale on the Parallax site, but it is available from the manufacturer, 4D Systems. I 'googled' it and see availability from a variety of distributors.

T o n y

Silver242

Thank you TonyWaite . Here a link to the conniction digram its without microcontroller , and i used the object for oled from Propeller library and it works fine , but the problem is that i want to put some images in the micro SD but i cant because the Graphics composer say its unable to find a device .This link will show the conniction between prop plug and the oled.

http://www.parallax.com/Portals/0/Downloads/docs/prod/displays/uOLED128-PropPlugConnection.pdf

TonyWaite

Hi Silver242,
Now I understand the hardware.
Would I be right to assume that the particular PC which you are using to run the graphics program has had the Vinculum driver installed for the Prop Plug? In other words, does the Operating System see the Prop Plug when it _alone_ is plugged into the USB port?
T o n y

TrapperBob

Hi Silver242,

The uSD card is seen as a enumerated drive using the the latest Graphics Composer software. The older software open a virtual com port

Silver242

Hi,
When i connected the prop plug alone the Operating System didnt find that the prop is plugged into the USB port , but i have propeller tool and when i connect the prop with the propeller it work and program the propeller.

TonyWaite

My Windows XP machine finds the Prop Plug immediately on insertion in the USB port. If you're running Windows too, I think that this is crucial. What OS are you running? It might be worthwhile running a 'find new hardware' scan...