My normal voltages regulators when looking at the lable were Vin Ground Vout
This one from sparkfun was Ground Vout Vin where the base was actually Vout, not ground. So you can’t share a larger heatsink with other regulators. Sparkfun has voltage regulators which have both pin configurations it’s a bit random which one you’ll get. Sadly i got the weird one, but that’s ok, it works, gives me a steady 3.330v to 3.333v.
As for the TTL converter, it’s a bit confusing. It goes
Low voltage High Voltage
BT TX -> TXI /\] TXO -> BBII RX
BT RX <- RXO /\] RXI <- BBII TX
3.3v on the bluetooth side, 5v on the botboard side.
So ya it’s not exactly the easiest to figure out since if you goof up, it could damage something.
This bluetooth adapter is nice in that you can reconfigure it by simple commands sent by a terminal program or even by the BB2/Atom pro.
Just so you guys know, this adapter is small. You can’t just solder pins to it and attach it to a breadboard.
What i did was take two 6" F-F jumper cables, and cut them in half for the 4 wires. The wires are actually rigid enough to hold this tiny adapter in the air. And that’s how i’ve been using it. Just let it stay up in the air.
Again i need to clarify, the TTL TX signal voltage is the same as the devices Logic voltage, so you need to use 4.5v-5v.
Thanks, but it didn’t matter, using 3.3v pumped out a low signal voltage from the TX to the botboards RX.
The atom pro 28 just doesn’t like 3.3v TTL signals.
Changed adapter postage, the one i got from ebay just wasn’t very good, probably my fault for feeding it 5v so many times before i bought the logic level converter.
If it is, that’s pretty nifty.
But it wouldn’t be able to handle the 50+ mA required to power the bluetooth adapter, would it?
Either way a cheap 3.3v regulator isn’t to hard to find, I probably have a few 100mA ones on various components that i just haven’t found yet.
Just hard to read and find the data manuals on a lot of the components.
Edit:
I was right about having a few more 3.3v regulators.
My old RROD xbox 360 had three 3.3v 1A regulators (i managed to fry one of them, wrong pinout-wrong manual.
So i got 2 more 3.3v regulators and two 1.8v regulators just incase.
Pretty awesome score i think.
There is also a massive 3.3v 1.5A regulator on the board that i just now found but haven’t removed yet.
A guide says theres also an adjustable regulator somewhere.
And this thing has a ton of N02G and N0RG mosfets. I just need to find out how to use these mosfet.
It seems the company that i ordered the first bluetooth adapter is one of those “one in a million” companies. They are sending me a brand new bluetooth adapter to replace the one that died on me.
I still suggest getting one that accepts serial commands, but buying from Sure-Electronics is still an acceptable choice.
Hopefully the new one won’t give me all the problems the first one did.
[humor!] I’m not sure how we are supposed to take this. Are you saying you can’t quite “get” something because being a cheerleader in the past has adversely impacted your ability to learn technical things?, or rather that because you were a cheerleader you were not interested in technical things and are late in the game to learn, and you don’t have the best equipment?
Either scenario I can tell you we harbor no ill feelings toward you and will do our best to help you learn. Even though your quarterback boyfriend stole our lunch money and broke our glasses! [/humor!]
