Smaller sized Voltage display

[bstedh]

Does anyone know of a smaller sized voltage display than the one sold at madvapes?

I am looking for something that would fit in a tight space. I like the one that MV has but want' about a 1/4 of the size. I am considering just doing a multiple LED indicator but don't want to do all the math and construction to put it together.

 

[drewk302]

There has been a lot of people searching and I believe noone has found one. I would like one also............my provari has a nice one, but thats all I know.

 

[breaktru]

There has been a lot of people searching and I believe noone has found one. I would like one also............my provari has a nice one, but thats all I know.

Rip it out drew and send it to me.

 

[drewk302]

haha I have been eying it myself, but its to pretty (and $$$) to rip apart.....for now

 

[Dalton63841]

What are the dimensions of the one with madvapes? I found this, might be useable.
$3.28 - Digital Multi-cell Lithium Battery Voltage LED Display for R/C Models - R/C Helicopters

 

[MadmanMacguyver]

What are the dimensions of the one with madvapes? I found this, might be useable.
$3.28 - Digital Multi-cell Lithium Battery Voltage LED Display for R/C Models - R/C Helicopters

Thats bigger than the MV display...the MV one the board is the size of the meter...

 

[Para]

Does anyone know of a smaller sized voltage display than the one sold at MadVapes?

I am looking for something that would fit in a tight space. I like the one that MV has but want' about a 1/4 of the size. I am considering just doing a multiple LED indicator but don't want to do all the math and construction to put it together.

File that under "Not Gonna Happen"

 

[breaktru]

Ahhhhh, who needs a built in meter any how...

 

[bstedh]

More can be better...

Guess I will have to look at building my own with a couple of diodes to indicate specific voltage levels. I will keep looking for a small display however.

So much for being lazy...

 

[Al Bundy]

You could possibly whip together several rectangular LEDs and configure a smaller version of a bar graph LED display. The problem would be the resistors required to configure the on/off voltages would eat up space. For that you could design a two layer PCB to put some smd resistors on the back, but there's no guarantee it would save much space even then.

You're not going to find a display at 1/4 of the size of the one on mv, they simply don't make 7 segment displays that small that I've ever seen. I'd try to find space by reducing the rest of the circuit, by reconfiguring the layout, or redesigning the packaging.

 

[bstedh]

I found a tiny one on digikey but it was over $60

 

[belialNZ]

You'll need to determine voltage and drive display yourself.. but these are tiny enough for the display part.

7S-1, Super Tiny 7 Segment LED Display, Red, Common Anode, RH DP, model #7S-1 - All Spectrum Electronics

 

[breaktru]

You'll need to determine voltage and drive display yourself.. but these are tiny enough for the display part.

7S-1, Super Tiny 7 Segment LED Display, Red, Common Anode, RH DP, model #7S-1 - All Spectrum Electronics

Nice size belialNZ, do you have a driver circuit to go with the segments?

 

[belialNZ]

Nice size belialNZ, do you have a driver circuit to go with the segments?

Sorry, no. I found that when considering display options for a Mod, I was planning to use a PIC that had enough spare outputs to drive it. But I ended up deciding to skip the voltage display.

There are plenty of IC's that would be suitable, but for a small space unless you are comfortable with SMT, it may be a problem.

My plan was to use a single resistor and power a single segment at a time at 4mhz from the PIC.

 

[BuzzKill]

http://www.kingbrightusa.com/images/catalog/SPEC/ACDA02-41CGKWA-F01.pdf

This is just the LED display , you would need a PCB with dual 7 segment driver plus a analog front end

 

[AttyPops]

I was toying with an idea.... haven't tried it yet, but maybe someone that has more disposable cash will want to play.....

You know those digital alarm clocks that project a bright lcd image onto the ceiling? The little projector is a small round cylinder about 1/2 " or maybe 3/4" on some of them and would fit in the end of a mod. So you would just "project" the voltage onto the desk/floor/palm at the press of a button. Now, you still need circuitry to display the numbers..... you might be able to use an existing meter but rip out the led/lcd and use the projector/lens as ?x 7-segment display. Would fit in the end of a tube mod. If you put an opaque cap over it when not projecting.... it could be the "cherry" LED too.

Some of those clock projectors are fairly small. Too bad you have to spend the cash on a whole clock just to rip em apart. If you can find the equivalent on mouser or digikey, cool. I didn't have much luck. Oh, and anyone that patients this... I get 10%.