Now that I've been looking at things again, I think that I might have found
a better buffer than the one I mentioned above.
http://www.digikey.com/product-detail/en/SN74AHC126N/296-4535-5-ND/375702
Looking at the datasheet for this one, it passes data when the OE pins are
high, and blocks when
(Sorry for the double-post, for some reason it wouldn't let me post it all
at once...?)
And, just to make sure - am I interpreting it all correctly?
To ensure the high-impedance state during power up or power down, OE
should be tied to GND through a pullup resistor; the minimum value of the
Awesome, thank you :) I'm new to a lot of this, so wanted to have an expert
double-check things :)
Thanks again! :)
PS - just for my curiosity, is there a reason that the capacitor is between
1OE and 2OE? I was just curious the difference it made being placed there
versus on one side or the
Haha, I wish it was that simple as having everything the same voltage ;)
Unfortunately, most of my sensors run at 5v, so it's either doing level
shifting on 30+ sensors, or on one connection between the Arduino and BBB.
To be honest, if I'd been able to run everything at 3v3, I'd have gotten a
power your arduino from 3v3, It'll do fine.
LP
On Thursday, May 29, 2014 6:38:48 PM UTC+2, myersco...@gmail.com wrote:
Hi!
I currently have an Arduino Mega 2560, and have pre-ordered one of the new
BBB rev C's. The Arduino collects data from environmental sensors placed
around our house,
Cool. Would something like this work? I was looking for a thru-hole
equivalent since I'm not good enough at soldering to try surface-mount yet
:)
http://www.digikey.com/product-detail/en/SN74LV125AN/296-34037-5-ND/1594902
LP - I don't think that my Arduino can run at 3v3; the specs say that
It should. Make sure you hook it up correctly and make the powered side be
the BBB side.
Gerald
On Thu, May 29, 2014 at 2:51 PM, myerscountr...@gmail.com wrote:
Cool. Would something like this work? I was looking for a thru-hole
equivalent since I'm not good enough at soldering to try
the 7-12 volt is the 'raw' power spec. This is converted to 5volt on the
board. This is normally the main system power.
When you connect 3v3 to the VCC pin the board runs at 3v3. Technically the
AVR chip is overclocked at this voltage, but I never have seen an arduino
fail doing this.
Try it,
