TinyCircuits Forum

General Category => New Product Ideas => Topic started by: ahkub on April 14, 2013, 01:47:31 AM

Title: Modification of the USB + ICP shield to 3.3V
Post by: ahkub on April 14, 2013, 01:47:31 AM

The current USB + ICP shield supplies 5V from the PC's USB to the TinyDuino. It would be great if there were a jumper to reduce the voltage to 3.3V, which is enough for TinyDuino. That way, it could be used to program TinyDuino inside a circuit with 3.3V components, like most EEPROMs. 

Title: Re: Modification of the USB + ICP shield to 3.3V
Post by: mkroll on April 24, 2013, 03:52:03 AM

I totally agree. I was wondering why VCC is tied to the USB voltage and not the 3V3 pin of the FTDI adapter, which supplies 3.3v without and additional parts. This would make it much easier to develop tiny shields.
Not I have to add a voltage regulator and a level shifter to a small shield in order to not burn it by the user while having a 3.3V shield attached during the programming cycle.

Title: Re: Modification of the USB + ICP shield to 3.3V
Post by: tomcUT on July 01, 2013, 11:36:05 AM

this would be great.  gets my vote.

Title: Re: Modification of the USB + ICP shield to 3.3V
Post by: darksheep on July 03, 2013, 09:50:28 AM

Yip this would be cool