Just For LM2596 Users

[TommyO]

I have been using this Volt meter recently... Mini Lithium Battery Digital Voltmeter DC 3.3v - 17V Blue LED Small Panel Meter | eBay

It doesn't require a third wire to power it and it comes in a few colors.

 

[Cyrus Vap]

Car Motor Digital Voltmeter DC 0-99.9V Three Wire Green LED Panel Voltage Meter | eBay

Digital Voltmeter DC 0-99.9V Three Wire Blue LED Electric Voltage Panel Meter | eBay

Quigs we're talking about these blokes yeah?

 

[BJ43]

Car Motor Digital Voltmeter DC 0-99.9V Three Wire Green LED Panel Voltage Meter | eBay

Digital Voltmeter DC 0-99.9V Three Wire Blue LED Electric Voltage Panel Meter | eBay

Quigs we're talking about these blokes yeah?

I have been using both the three wire and the two wire, neither blinks like 1S 6S, The two wire starts to dim below 3.3 volt but will read down to 3v.
Mini Lithium Battery Digital Voltmeter DC 3.3v - 17V Blue LED Small Panel Meter | eBay
This one is adjustable so you can set it with your multimeter to be accurate.
http://www.ebay.com/itm/Slim-Digita...022?pt=LH_DefaultDomain_0&hash=item1e72e27a96

 

[Badical9]

I got this one to try out 3.2-30V Blue LED digital* display Voltage Panel Meter Voltmeter/18650 battery | eBay

I received it in about a week from china, not bad at all. It doesn't blink and refreshes very quickly. Seems like the same one that BJ posted above. I got it hooked up to a on-off-on switch and it measures battery v in and v out from the LM.

I finally got all the parts to start making my mod but I'm thinking I might want to use a tactile switch for the fire button now. I found a bunch on eBay rated 50ma so here's my question....... The LM has a 3A max output so which mosfet should I use?? Will it matter where I wire it on the circuit?

 

[BJ43]

I got this one to try out 3.2-30V Blue LED digital* display Voltage Panel Meter Voltmeter/18650 battery | eBay

I received it in about a week from china, not bad at all. It doesn't blink and refreshes very quickly. Seems like the same one that BJ posted above. I got it hooked up to a on-off-on switch and it measures battery v in and v out from the LM.

I finally got all the parts to start making my mod but I'm thinking I might want to use a tactile switch for the fire button now. I found a bunch on eBay rated 50ma so here's my question....... The LM has a 3A max output so which mosfet should I use?? Will it matter where I wire it on the circuit?

Depends, if it is a N or a P, one is put on the negative circuit and the other on the positive, the amps on the mosfet should be higher than the 3 amps. Diagram is for an N mosfet.

 

[Rader2146]

It would be easier and save some space if you lift pin 5 and wire it in like TomCat showed instea of using an external MOSFET.

 

[BJ43]

Here is a diagram for lifted pin 5 method. 220 to 330 ohm resistor between pin 1 and lifted pin 5. Switch to ground.

 

[Badical9]

Thanks for the help guys!!! Im going to give that a shot

 

[TomCatt]

It would be easier and save some space if you lift pin 5 and wire it in like TomCat showed instea of using an external MOSFET.

I did?




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[Rader2146]

Hmmm...oops. I'll have a word with my memory, once I find it.

Correction: as Quigsworth showed.

 

[Quigsworth]

Jeez TC, take credit when ever you can buddy...how do you ever expect to make it in the corporate world???

Sent via subspace communication

 

[TomCatt]

Hey Q, I'll take credit when it's due . When you take undue credit in the corporate world ya gotta watch your back a lot closer than I tend to do


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[Quigsworth]

True enough, though I wish someone would tell that to some of the sharks I work with

Sent via subspace communication

 

[Badical9]

I wish I would of snagged one of those blue meters...they look cool...I got tired of the cig lighter thing (too much stuff flying around) I decided to simply hard wire a 2596 right into my cars console complete with 5A fuse, off/on, meter and fem. DC jack...fits into the now vented ashtray with a plexy cover...I then made a fake batt/wire/male DC jack that just plugs in andpowers any of my mods that take an 18650 batt...though it looks that I may be selling the car...hope whoever bu
ys it vapes

can you wire the lm directly to the car battery?

 

[Quigsworth]

can you wire the lm directly to the car battery?

Sure, but make sure you put in a 2A-3A inline fuse, $3 at NAPA...safety first

 

[BJ43]

All my 3amp LM2596 VV mods are getting obsolete with 28g Kanthal. Time to upgrade to over 5 amps. Ebay here I come.

 

[BJ43]

Maybe
LED Voltmeter Ammeter and Power Meter DC Buck CC CV Power Conversion Module | eBay
or this
LED DISPLAY DC-DC POWER CONVERTER

 

[Illuminatu]

Did I read that right:

this one LED Voltmeter Ammeter and Power Meter DC Buck CC CV Power Conversion Module | eBay has a ampmeter on it too ?

 

[BJ43]

Did I read that right:

this one LED Voltmeter Ammeter and Power Meter DC Buck CC CV Power Conversion Module | eBay has a ampmeter on it too ?

voltage, amps, and watts

 

[Illuminatu]

Wow now I need one of those ! damn you for making me spend Bj