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1  Products / Arduino Due / Re: Solution for the 5V vs 3.3V problem on: December 12, 2012, 11:34:08 pm
Also take a look at our which is another pin adaptor.


Hey guys,

I've been looking into something like this for a while as well. One thing that caught my eye was this pin converter shield for the UNO/Leo to go between the old pinout and 1.0

Something like this could be implemented with logic converters between the connection points. This could also leads in some other interesting directions as well:
  • Being able to select/designate individual pins as 5v or 3.3v logic
  • Integrating dynamic pin assignment so the pinout could be adaptable to older shields configurations
  • And if you really wanted to get crazy, you could even wire the whole thing up to be driven by an integrated IC so you just add a library to your sketch and assign the pinout and voltage in software.
  • And since I've already gone way out in left field, to complete the prefect conversion shield, add either an IC to linearly scale the analog inputs or a separate 5v 12 or 16 bit ADC

EDIT: Just read the post about the GTL2000 and it got me thinking there has got to be a chip that could route pins and shift logic levels... Yup.

2  Using Arduino / Installation & Troubleshooting / Re: leonardo blink sketch not uploading.. "buffered memory access not supported" on: October 10, 2012, 03:48:36 pm
Hi Somesh.
Sorry to hear your first time experience with Arduino has not been so good. Is it possible to provide some screenshots of the error messages in the IDE so we can help you?

One question springs to mind. Is the Arduino Leonardo connected to the computer via a usb hub. If so, until you find the problem, make sure you connect directly to the PC. This goes for any Arduino problem troubleshooting.

Finally see this post


3  International / Deutsch / Re: SD Card mit Leonardo on: October 06, 2012, 10:46:52 pm
Please take a look at this shield adapter which will convert the pinout on the Arduino Leonardo to match the older shields easily.
4  Using Arduino / Project Guidance / Re: Texas Instruments RFID reader - getting serial data on: September 25, 2012, 06:39:50 pm
Hi there Dylan, did you note this...

"If you want to run the Control module in a 3-wire connection (RXD, TXD, and GND), without remote
controlled activation, Jumper 5 (JP5) must be closed. This connects DSR and DTR together."

Just to be sure you do have the module configured correctly for 3 wire operation, it would be a good idea to isolate all other signals electrically and try again with the pc to make sure the module is in fact configured correctly for operation in this mode.

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