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I have managed to fry one, by accidentally connecting it to 5V rails.

For ... just a few seconds, till I have realized that it might be a reason why it is not booting, but it was too late already.

Lesson learned.

I have immediatelly soldered MCP1700T-33 linear regulator with a low dropout on the next one.
(it needs a capacitor to work properly once PADI connects to wifi, I guess, current spikes beyond it's capability)

Suggestion - add small pads for a regulator to be soldered on, to the adapter board. Like on the ESP8266 adapter board, there are pads, an 0 ohm resistor is bridging V-in and V-out by default.
(02-16-2017, 06:34 AM)kissste Wrote: [ -> ]I have managed to fry one, by accidentally connecting it to 5V rails.

<snip>

Suggestion - add small pads for a regulator to be soldered on, to the adapter board. Like on the ESP8266 adapter board, there are pads, an 0 ohm resistor is bridging V-in and V-out by default.

The breakout board is designed to be plugged into a standard breadboard.  The breadboard power supply has dual switchable 5v|3v3 rails ;  consequently regulator is not necessary on the breakout board.  I am adding a 3v3 regulator and decoupling cap(s) to my Arduino shield;  although the Arduino has 3v3 available, I want dedicated supply.  The production shield will not use the breakout board at all.
@marcushh777  Yes, you have a valid point, regarding the breakout board being designed for a standard breadboard. But, extra pads, would be handy, eventually a project moves from a breadboard to a project box or it will end up being integrated into another device. (Hobby perspective).

Handy overview of 3.3V up to 500mA regulators:
https://docs.google.com/spreadsheets/d/1...NfK_x_9GDc
(02-17-2017, 06:05 AM)kissste Wrote: [ -> ]But, extra pads, would be handy, eventually a project moves from a breadboard to a project box or it will end up being integrated into another device. (Hobby perspective).

I second that. I do a lot of breadboard stuff which has a single supply (typically 5v), so having the pads for a LDO linear regulator would be a great addition to the board. All the 3.3v stuff I use has been picked for having on-board regulation/level-shifting, so I don't have to add in a second supply, or use specific multi-voltage boards.
it would be an innovative addition to the breakout, which is based on feedback from the community which would not be all that difficult. this is the type thing that pine64 needs to foster if they are truely interested in being part of the maker scene. the ole "you asked for it, you got it" type mindset put to work on small improvements.
yeah it's not a given that breadboards are at 3.3v  Angel
I accidentally put 6.3V into mine for a couple seconds, it now heats up and uses significantly more (~3-4x) power, but still seems to be connecting to wifi and working for now. I dont expect it to continue to work for much longer Sad

My Power supply is dumb - it doesn't show output until it is on and is controlled by a touchy knob -> so completely my fault.
(11-13-2017, 02:23 PM)Dan Wrote: [ -> ]I accidentally put 6.3V into mine for a couple seconds, it now heats up and uses significantly more (~3-4x) power, but still seems to be connecting to wifi and working for now. I dont expect it to continue to work for much longer Sad

My Power supply is dumb - it doesn't show output until it is on and is controlled by a touchy knob -> so completely my fault.

Sorry to hear that :-(
Im kind of confused, I did a solid 4+ hours of development on my damaged PADI yesterday and it seems to still function correctly, despite drawing ~10x more power at idle. Wifi and everything is working, the only difference I have observed since powering it with 6V is the dramatically increased power consumption and a corresponding increase in heat production.
My understanding of damaged MOSFETS is that they basically self destruct once the hit the breakdown region, so I am curious if anyone has ideas about what type of damage the over-voltage caused, since my PADI is clearly damaged, but seems to be functional and in a stable condition?

Note: I'm just curious, I have an extra PADI and stuff for actual development