Easy Mini MAGLITE 2-Cell AA Mod *now includes pictures and build details*

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Rufusbduck
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dthoang wrote:
Rufusbduck wrote:
Would it be possible to power an Attiny from the boost and use it to control the 7135? An mmu might be able to fit on a layout that small.

I don’t see why not. The ME2180 is designed to power microcontroller-based devices such as a wireless mouse. The tricky part is to make everything fit. What makes it possible is that the ME2180 only requires an inductor and two caps. Other boost converters chips require a schottky diode, sense resistor, and sometimes an FET.


If your interested in working on a much needed BLF driver design you might consider collaborating with some of the people Over in this thread A really good start would be to post a schematic of the board you’ve modded with the changes you’ve made. From there a schematic which includes the Attiny 13A for 16mm drivers or the mmu for smaller pcb’s can be made. It’s a small step from there to having one of the now more numerous members familiar with Eagle design software to come up with whatever board designs a bevy of backseat drivers can imagine. They need some help getting started.

Three Tanna leaves to give him life, nine to give him movement. But what if he eats the whole bag?

Scott

dthoang
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Rufusbduck wrote:
dthoang wrote:
Rufusbduck wrote:
Would it be possible to power an Attiny from the boost and use it to control the 7135? An mmu might be able to fit on a layout that small.

I don’t see why not. The ME2180 is designed to power microcontroller-based devices such as a wireless mouse. The tricky part is to make everything fit. What makes it possible is that the ME2180 only requires an inductor and two caps. Other boost converters chips require a schottky diode, sense resistor, and sometimes an FET.


If your interested in working on a much needed BLF driver design you might consider collaborating with some of the people Over in this thread A really good start would be to post a schematic of the board you’ve modded with the changes you’ve made. From there a schematic which includes the Attiny 13A for 16mm drivers or the mmu for smaller pcb’s can be made. It’s a small step from there to having one of the now more numerous members familiar with Eagle design software to come up with whatever board designs a bevy of backseat drivers can imagine. They need some help getting started.

The requisite information can be found in the ME2180 datasheet that I posted a link to, so I don’t need to create a schematic. I’ll post to that thread as you suggested.

one year rookie

Rufusbduck
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It’s an interesting project in it’s own right and definitely targets an empty nitch in the growing list of BLF drivers. I can certainly see the possibilities for a number of different sized/different output drivers depending on AA, C, or D-cell use. Often we see drivers with the power section on one pcb and control on a second stacked pcb so that might prove an easy way to test by just powering a 105C board that has just one or two chips with one of these boost drivers. The voltage divider would need to be altered to feed pin 7 the proper voltage range and jumpered directly to B+.

Three Tanna leaves to give him life, nine to give him movement. But what if he eats the whole bag?

Scott

Rufusbduck
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If you do another could you post a pic of the driver in it’s stock form?

Three Tanna leaves to give him life, nine to give him movement. But what if he eats the whole bag?

Scott

dthoang
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Rufusbduck wrote:
If you do another could you post a pic of the driver in it’s stock form?

Sure. I ordered another pair of zoomies and hopefully one of them will be same 3 mode driver.

one year rookie

Rufusbduck
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I’m considering opening up my BLF saber 1A(older thrunite T10) and looking at that driver since it’s survived using a liion for so long but the modes are off. Moon is good but med is hardly differentiated from high.

Three Tanna leaves to give him life, nine to give him movement. But what if he eats the whole bag?

Scott

Alcius
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Lilien
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Alcius wrote:
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Please don’t expect wonders, this is an old thread from 2015, but you are right, it’s still interesting. Wink
Manx
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Quote:
Please don’t expect wonders, this is an old thread from 2015, but you are right, it’s still interesting

You are right but…I found it too just now and…I have a couplle of AA zoomie + and old 2AAMaglite sitting around, so…
Thank you very much, I will give a try! Thumbs Up

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