uSupply Custom LCD

[ataradov]

My ideal uSupply would allow me to charge my Li Ion cells.... and on completion it would show me how many mAhr it had pumped in to them.

Why would you want to charge batteries from a portable battery-based device? Seems like a huge waste. What you want is a good battery charger.

[mikeselectricstuff]

I think it would be worth putting an H after the W and A , for possible other uses like a dummy load, though would also be occasionally handy on a PSU for estimating battery life

[NivagSwerdna]

My ideal uSupply would allow me to charge my Li Ion cells.... and on completion it would show me how many mAhr it had pumped in to them.

Why would you want to charge batteries from a portable battery-based device? Seems like a huge waste. What you want is a good battery charger.

You need more imagination.  The display could be used for a variety of purposes...  and thanks Mike... "Hh" works

[ataradov]

You need more imagination.  The display could be used for a variety of purposes...

That's a recipe for a project that never ends.

[MT]

Custom LCD proposal for the new µSupply
Comments foolishly invited

And the mm dimensions are?

[asmi]

Personally I'd prefer full LCD display if only to make the device more customizable via firmware changes.

[ebclr]

Why not an easy programmable color serial LCD ( HMI ) like this one,  cost is approx 5 USD, no tooling no nothing, and design can be changed at any time the software guy wants

[Mr. Scram]

Why not an easy programmable color serial LCD ( HMI ) like this one,  cost is approx 5 USD, no tooling no nothing, and design can be changed at any time the software guy wants

That's a $15 screen by the time it reaches the customer. The quality seems unknown.

[Whales]

Be very wary of that product shot.  The screen's picture looks absolutely perfect, with pure blacks and perfect whites, even better than the contrast of the rest of the photo.

[ataradov]

Be very wary of that product shot.  The screen's picture looks absolutely perfect, with pure blacks and perfect whites, even better than the contrast of the rest of the photo.

The picture is obviously photoshopped, I thought it was obvious to everyone.

[julianhigginson]

Why not an easy programmable color serial LCD ( HMI ) like this one,  cost is approx 5 USD, no tooling no nothing, and design can be changed at any time the software guy wants

because there's about 3 pages discussing that in the thread already and dave has explained why not multiple times?
 

[EEVblog]

Latest version:

[ataradov]

Latest version:

Looks great, IMO. What are the dimenstions?

[Dubbie]

Nice Dave.

Can you fix the kerning on the mJ and Wh. It will help legibility and look more polished.

[Mr. Scram]

That already looks a lot more mature than the previous version. I like the increased legibility of the things in solid blocks.

I do notice that the MIN/MAX aren't sized the same on the volt side of things. That should of course be a minor fix.

[asmi]

Latest version:

Not sure if it's possible, but it would be awesome if volts and amps would have different colors. Never underestimate the value of a quick glance! 

[Mr. Scram]

Not sure if it's possible, but it would be awesome if volts and amps would have different colors. Never underestimate the value of a quick glance! 

Considering those colors seem to be different on different equipment, I think you need a second look anyway. After a handful of uses, you should know whether the upper indicator is volts or amps.

[jaycee]

Latest layout looks great, and has a multitude of uses. Maybe you'd even consider selling them individually for those of us brewing our own PSU's too ?

[Seppy]

Nice Dave.

Can you fix the kerning on the mJ and Wh. It will help legibility and look more polished.

I didn't even notice the kerning problem, it happened in the conversion from vector artwork to png. Weird.

That already looks a lot more mature than the previous version. I like the increased legibility of the things in solid blocks.

I do notice that the MIN/MAX aren't sized the same on the volt side of things. That should of course be a minor fix.

Yeah that was fixed, forgot to update the section with the MIN/MAX template.

Thanks everyone!

[mariush]

Not sure I dig the single "inverted" icon on the right, the ON text... it's like it makes everything off balance.  I like things vertically aligned and symmetric.

Wonder if it wouldn't look better on the left in the same shape as the CV and CC icons and then have that whole row moved to the right and have 0 instead of 1 (should fit, since the ON would be slightly smaller) .. why have just "1" there when everything else is full 7 segment

Speaking of which, wouldn't the controller they put on the back of the lcd display have some limitation about the number of segments and all that? Are there price jumps depending on the segment count ?

Looks like around 160 segments to me (just multiplying the digits by 7 segments, adding dots and all that)... 

[Seppy]

Not sure I dig the single "inverted" icon on the right, the ON text... it's like it makes everything off balance.  I like things vertically aligned and symmetric.

We thought ON was perhaps the most important display icon, this is why it stands out the most and on its own.

[VEGETA]

If it is custom, how can you drive it via MCU? I mean, will it be the same like other LCDs?

[ataradov]

If it is custom, how can you drive it via MCU? I mean, will it be the same like other LCDs?

LCD controller chip. This was already mentioned in this thread.

[EEVblog]

Speaking of which, wouldn't the controller they put on the back of the lcd display have some limitation about the number of segments and all that? Are there price jumps depending on the segment count ?

This is not a COG display, controller is external for cost reasons.
The external controller supports 8 COM x 32

[JPortici]

Or there could be a separate microcontroller for the user interface which also has a segment LCD controller builtin (maybe not in this case but it is another alternative)