*NEW* USB Input/Output Board -- Fusion Brain

**h3rk** · 04-10-2007, 12:17 AM

My vote is to keep the display as clean as possible. maybe a config page setting.

**2k1Toaster** · 04-10-2007, 12:26 AM

Originally Posted by h3rk

My vote is to keep the display as clean as possible. maybe a config page setting.

Your wishes are my command.

That will be a feature now. Well not, now but soon. Before release.

**inFused** · 04-10-2007, 12:32 AM

2k1Toaster,

Do you think you could set the "last state" vs "default state" option per relay control? That'd please everyone, and also allow for some people to run some relays based on the default state and some on the last state.

I know that complicates things a bit :P

**2k1Toaster** · 04-10-2007, 12:34 AM

Originally Posted by inFused

2k1Toaster,

Do you think you could set the "last state" vs "default state" option per relay control? That'd please everyone, and also allow for some people to run some relays based on the default state and some on the last state.

I know that complicates things a bit :P

That's what the plan is.

And I like your user name.

**greenman100** · 04-10-2007, 11:01 AM

Yeah, to restate the above:

There will be two options for "saving state"

Default - this is the value that automatically loads when the computer finishes starting up.

Last known - this will maintain a value for as long as the PIC has power.

I recognize that it would be nice to save the last known state into non-volatile RAM, but I need to look into whether the PIC has the ability to do that. I'm not sure.

**mezz64** · 04-10-2007, 11:52 AM

So the board will retain power once the engine is off, any idea of the current draw?

**2k1Toaster** · 04-10-2007, 02:02 PM

Originally Posted by greenman100

Last known - this will maintain a value for as long as the PIC has power.

I recognize that it would be nice to save the last known state into non-volatile RAM, but I need to look into whether the PIC has the ability to do that. I'm not sure.

I can make it software based but that would mean it will go to the last known state, only when the computer is on. So if output 1 is set to last known state as a default setting, and is on right when the computer shuts down, the output will shut off while the computer is off. Then once the computer and program start up again, it will go back to on with no user touch.

We could set it through hardware, but like you said, that is constant power draw.

**greenman100** · 04-10-2007, 02:14 PM

Originally Posted by mezz64

So the board will retain power once the engine is off, any idea of the current draw?

Well it doesn't have to... it's up to you to maintain the last known state if you want. If you do, the drain of the board is about 20mA + whatever relays you use

Alternatively, you can just let the PC hold the last state, and wait until it boots up... if that makes sense.

We're still fleshing out the details... We'll do a full writeup once it's finalized.

On another note, we got the beta boards today.

**greenman100** · 04-10-2007, 04:17 PM

We need to get a feel for how many people want accelerometers.

The minimum order is 100, or pay a big setup fee for making the boards.

The accelerometers would sell for $20, and be capable of measuring +/- 6g in any direction (triple axis)