two digit display/voltage meter

[EightSixZero]

Does anyone know where to find a voltage meter/display that's smaller than the three digit one from mad vapes ? Its primary use would be as a voltage readout but if it could also display watts or amps that would be a bonus. I've searched but came up empty.

 

[Str8V8ping]

Just a regular 2 digit numerical display you should be able to find anywhere in all different sizes. You will need something to run with it though like a microcontroller. They are just displays with no built in circuits like the madvapes meters.

http://www.ebay.com/sch/i.html?_nkw...display&_osacat=0&_trksid=p3286.c0.m270.l1313

http://www.ebay.com/itm/1x-0-28-TWO...387?pt=LH_DefaultDomain_0&hash=item2a17b1815b

 

[zazz]

digikey has some .2in digit displays in surface mount. i've thought about designing a little board with a microcontroller, but it would cost too much in production to build them unless i made a bunch to sell. might be worth it if there was an interest here

 

[fray]

if you are going to go the route of using a microprocessor I would just get a small LCD. A lot of modern microprocessors have LCD drivers now. More flexibility too

 

[jhonutz]

You don`t find on marketplace 2 digit voltmeter, only made. I use regular a 2 digit voltmeter on my mods, made by me off course.

 

[BJ43]

if you are going to go the route of using a microprocessor I would just get a small LCD. A lot of modern microprocessors have LCD drivers now. More flexibility too

Link........?

 

[jhonutz]

farnell.com

 

[BJ43]

farnell.com

Thanks you sent me to a forest and I don't even know what tree to find,,lol

 

[CraigHB]

if you are going to go the route of using a microprocessor I would just get a small LCD. A lot of modern microprocessors have LCD drivers now. More flexibility too

I understand what you mean, but logic embedded devices use micro-controllers (an embedded device is anything that executes digital logic to perform a singular function). I suppose a µcontroller can be called a µprocessor in the most liberal sense, but they really are two quite different things.

A µprocessor is something you find in a device with lots of computing power and large amounts of external memory. A µcontroller has the ability to run code and comprises a processor, but stores program code and data on-chip. A µcontroller also has specialized digital functions on-chip where a µprocessor does not. Another big difference is pin count and bus width. µControllers can have as little as 8 pins with 8 bit buses where µprocessors usually have several hundred pins with 64 or even 128 bit buses. µProcessors typically execute code in the gigahertz where µcontrollers typically execute code in the megahertz.

There are enough differences that it sounds strange to me when someone says microprocessor when the correct term is micro-controller.

 

[BJ43]

Can I buy a micro-controller preprogrammed with a LCD to read ohms?

 

[CraigHB]

No you can't. You have to program the micro-controller yourself. Though, it's actually a lot of fun to play with these devices so it may be something you'd enjoy doing if you have the desire. You don't need a degree in electrical engineering to make your own embedded devices. Pretty much anyone can do it with enough desire and motivation.

 

[jhonutz]

must know programming first and after some electronics

 

[fray]

I understand what you mean, but logic embedded devices use micro-controllers (an embedded device is anything that executes digital logic to perform a singular function). I suppose a µcontroller can be called a µprocessor in the most liberal sense, but they really are two quite different things.

A µprocessor is something you find in a device with lots of computing power and large amounts of external memory. A µcontroller has the ability to run code and comprises a processor, but stores program code and data on-chip. A µcontroller also has specialized digital functions on-chip where a µprocessor does not. Another big difference is pin count and bus width. µControllers can have as little as 8 pins with 8 bit buses where µprocessors usually have several hundred pins with 64 or even 128 bit buses. µProcessors typically execute code in the gigahertz where µcontrollers typically execute code in the megahertz.

There are enough differences that it sounds strange to me when someone says microprocessor when the correct term is micro-controller.

A micro controller is a specialized microprocessor.