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Breaktru Forum  |  eCigarette Forum  |  Modding  |  Topic: Micro-Controller Mod
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Author Topic: Micro-Controller Mod  (Read 37567 times)

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Online Breaktru

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Micro-Controller Mod
« on: April 17, 2012, 03:36:13 PM »
Work in progress........





« Last Edit: April 18, 2012, 03:19:13 PM by Breaktru Admin »

Offline FlameOut

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Re: Micro-Controller Mod
« Reply #1 on: April 17, 2012, 04:17:12 PM »
Hmmm, what have we here. A very interesting progress in motion..  :thumbsup:

Offline CraigHB

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Re: Micro-Controller Mod
« Reply #2 on: April 17, 2012, 04:23:26 PM »
Looking good there boss.

Offline Dznutz

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Re: Micro-Controller Mod
« Reply #3 on: April 17, 2012, 11:49:27 PM »
Looking good   :D

Online Breaktru

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Re: Micro-Controller Mod
« Reply #4 on: April 21, 2012, 12:38:59 PM »
Finally Completed and it works great.
I would have liked to put it in a smaller enclosure but I settled on this one. I searched for months and couldn't find anything I liked.
Next one will be smaller.
The next to last photo shows the button I would have liked to use but it was too massive.
I refrained from using a Digital Pot because I need a 200 ohm trimmer and the D.P.'s lowest value is 10k ohms. Having done this with my side x side mod, I know that adjusting voltage would be pretty crappy as the increment jumps are pretty large.

Features:

AVR ATMega328 - microprocessor
Amperage Sensor
Programmed w/ Arduino Sketch Software
FTDI output pins for future re-programming
OKR-T/6
Voltage Range: 3.5v to 6.0v
30Watts - 6amps

USB Charging Circuit
Series 2x Li-Po 20c batteries for vaping
Parallel batteries for charging via USB
8x2 LCD Display
Slotted Vent Holes on bottom plate

Display Shows:
Output Voltage - Amperage - Resistance of Atty - Wattage - Battery Level in Percentage

ProVari V2 - 3.5amps, 16watts
Darwin - 3amps, 13watts
My MCU Mod - 6amps, 30watts - Tune by Wattage

I compared voltage, amperage and resistance with my Digital Multimeter and the Mod Display readings are exact.



« Last Edit: April 30, 2012, 06:30:46 PM by Breaktru Admin »

Offline Dznutz

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Re: Micro-Controller Mod
« Reply #5 on: April 21, 2012, 12:56:21 PM »
Its smaller then the case would have suggested. You rock Break looks good.

Offline jester

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Re: Micro-Controller Mod
« Reply #6 on: April 21, 2012, 04:19:25 PM »
looks very good will you be doing a how to make one video ha ha jimmy  :rockin smiley:

Online Breaktru

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Re: Micro-Controller Mod
« Reply #7 on: April 21, 2012, 04:27:35 PM »
Wiring...... needs some squaring off... ya think!


Offline jester

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Re: Micro-Controller Mod
« Reply #8 on: April 21, 2012, 04:29:37 PM »
i hope one day i will be as good as you  :rockin smiley:

Online Breaktru

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Re: Micro-Controller Mod
« Reply #9 on: April 21, 2012, 04:34:05 PM »
i hope one day i will be as good as you  :rockin smiley:

Takes some practicing and patience... you can do it too

Online Breaktru

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Re: Micro-Controller Mod
« Reply #10 on: April 21, 2012, 04:37:41 PM »
Been playing around with this and it is kinda cool to have a display with all of the measurements.
You can focus on just the Wattage reading and adjust the pot to a desired wattage.

Offline jester

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Re: Micro-Controller Mod
« Reply #11 on: April 21, 2012, 04:43:04 PM »
hi there i have learnt loads in the last 7 month that me and missis have been vaping but i`m sure that i won`t get that good ha ha i have only just learnt how to read the battery life and vaping voltage, with my little lcd`s. I have been looking at some chips they are like the okr and the ptr but they have only got a maximum voltage of 5.1 volts but they come in 3 amp 6 mp and 10 amp but i`m going to have a proper look tommorow at it 
.
« Last Edit: April 21, 2012, 04:46:58 PM by jester »

Offline jester

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Re: Micro-Controller Mod
« Reply #12 on: April 21, 2012, 04:51:51 PM »
the chip are artesyn  ldo03c

Online Breaktru

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Re: Micro-Controller Mod
« Reply #13 on: April 21, 2012, 05:10:11 PM »
the chip are artesyn  ldo03c
I've seen those before. I ordered samples of all three amperage but never received them.
As well as similar manufactures versions of it.
Thanks to timesarerough who made me aware of the samples.

Offline jester

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Re: Micro-Controller Mod
« Reply #14 on: April 21, 2012, 05:37:19 PM »
do you think the voltage would go higher :beer-toast:jimmy

Offline CraigHB

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Re: Micro-Controller Mod
« Reply #15 on: April 21, 2012, 05:51:54 PM »
Beautiful, nice job there.  I'm sure you'll have a lot of fun with future revisions.

Offline Pantera

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Re: Micro-Controller Mod
« Reply #16 on: April 21, 2012, 06:12:29 PM »
Well done my friend  :beer-toast:
A terrific refreshing change to the Ho-Hum modding scene  :yes"

Offline Aromaz

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Re: Micro-Controller Mod
« Reply #17 on: April 21, 2012, 06:22:21 PM »
WOOT! - WOOT!

I've been waiting with baited breath for the completed version to appear. Me Likes  :thumbsup:

Offline Dznutz

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Re: Micro-Controller Mod
« Reply #18 on: April 22, 2012, 01:26:29 AM »
Wiring...... needs some squaring off... ya think!

Nah looks good  :D I also like how you used the RC style plugs for the batteries. Looks as tho you have spare room in their to add a few things if you want to. Size wise looks like 2 stacked 4aa boxes

Offline fsors

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Re: Micro-Controller Mod
« Reply #19 on: April 22, 2012, 12:47:57 PM »
Can I get a schematic? Looks Amazing Dave! Congrats!!!

Offline tsweetwater

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Re: Micro-Controller Mod
« Reply #20 on: April 22, 2012, 01:51:55 PM »
Well done, now thats what I call a mod :)

Offline SolarRay

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Re: Micro-Controller Mod
« Reply #21 on: April 23, 2012, 04:00:51 AM »
Fantastic job :rockin smiley: Next you will have to do a surface mount version! I lot of people who checked out my box mod  in person, said they love the voltage adjust knob...they said they love the fact you can just dial it in....rather than using a changing the voltage using button interface via a digipot... I guess you could try 4050c's in parallel and get 24watts...if out doing the ProVari and others are a priority...I do think its cool that you did!  :laughing2:

Offline SmokeRings

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Re: Micro-Controller Mod
« Reply #22 on: April 23, 2012, 10:06:11 AM »
OMG! I love it. This has to be the coolest mod I've seen.
I love the idea of being able to see the wattage and dial it up or down.
Yes the analog pot in my opinion is a better choice. Although I like the cool-ness of a D.P., the analog pot is more practical.
Way to go breaktru!!!!!
 :beer-toast:

Online Breaktru

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Re: Micro-Controller Mod
« Reply #23 on: April 25, 2012, 04:06:57 PM »
Had a bit of a problem with the LCD Display flashing and code locking up on occasion. I suspected noise on the output for the AVR LM317 power supply. Voltage measurements where steady using a voltmeter. An oscilloscope would have shown the noise/ripple but I don't have one so I went with my gut that there must be noise generated by the OKR-T-6's 600kHz frequency. I experienced this on bench testing and I isolated the OKR by removing it off the PCB and moved it about a foot away. The problem disappeared.
But putting it in the same enclosure as the AVR chip brought back the occasional problem which eventually became a persistent problem. What to do? I shielded it by wrapping some aluminum foil around the OKR, that didn't help. I looked into better filtering of the LM317 AVR power supply and came up with adding additional filtering.
I replaced the recommended output 0.1uF electrolytic cap with a 10uF, paralleled a 0.1uF Ceramic (for ripple filtering) and added a (C-Adj) 10uF electrolytic to Adj to gnd. What did the trick was the C-adj cap. It's nice and stable now.
I'll monitor my usage and see how it goes. Recharged the Li-Po's last night and it took 6 hrs for full charge. Both batteries measured 4.19v after completion.

Offline SolarRay

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Re: Micro-Controller Mod
« Reply #24 on: April 26, 2012, 02:55:07 PM »
Glad you solved it! I don't know if you could have solved this with an RC filter in the circuit or not.... there are various calculators online that help calculate the values.

I'm in the same boat as you when it comes to an oscilloscopes...I've seen some decent (based on price/specs, not experience) USB based scopes for $150, Single channel, 100m/s sample rate, 8 bit sampling A/D, Bandwidth varies but you can find them above 1 Mega Hz  to about 25 Mega Hz, which would be fine for  tracking down a 600Khz ripple. For about $250 you can get two channel storage PC based scope that will be of great assistance if you get into I2C (two wire interface for micro-controllers) or SPI (serial protocol interface)...for controlling LCD's, oLED's or Digi-pots.  Used to use them (older analog scopes) a lot in school and borrowed ones from Silicon Valley engineers when I lived there.
« Last Edit: April 26, 2012, 03:02:58 PM by SolarRay »

Offline wwwest

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Re: Micro-Controller Mod
« Reply #25 on: April 26, 2012, 08:18:25 PM »
Wow weeeee!!!
Thanks for sharing it with us breaktru...
Fantastic!
 :rockin smiley:

Offline CraigHB

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Re: Micro-Controller Mod
« Reply #26 on: April 27, 2012, 03:20:56 PM »
Don't waste your money with USB scopes and sound card scopes.  Just get yourself a proper one.  If you can afford it, this one is really nice for the cost.

It you don't want to spend the money on a new one, you can find good used analog scopes on eBay for under $100.  Digital storage scopes are nice, but you can do 90% of what you'd want to do with an analog scope and they're a dime a dozen.

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Re: Micro-Controller Mod
« Reply #27 on: April 28, 2012, 04:25:48 AM »
Yeah the "Sound Card" Scopes are junk....I've heard the USB scopes aren't too bad for occasional use...But you are right good quality tools always cost and most times not spending enough is just throwing your money away....That scope for $399 is really nice for the money...THANKS!  :)

Online Breaktru

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Re: Micro-Controller Mod
« Reply #28 on: April 28, 2012, 01:12:54 PM »
I have been powering an OKR-T/6 with two Li-Po's in series and charging them in parallel using a 3PDT slide switch.
Before I connect the USB charger, I place the 3PDT in parallel mode which allows the batteries to equal out for awhile before charging.

Batteries have always came off the charger COOL on full charge and have never been even warm.
Each battery has measured 4.19v when done.

So far I've done this several times and so far so good. Haven't blown myself up yet. I'll keep ya's informed when an explosion occurs or have my next of kin post post an obituary notice........   :laughing:



Charging Chip: SEE DATASHEET

Charger has a Preconditioning feature. See page 13 of datasheet.

Charging takes 5 hours
« Last Edit: October 12, 2013, 08:54:27 AM by Breaktru »

Offline Haileah

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Re: Micro-Controller Mod
« Reply #29 on: May 05, 2012, 11:05:50 AM »
This is way cool dude. Just love it.  :thumbsup:
When and what is the next mod?

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Re: Micro-Controller Mod
« Reply #30 on: May 05, 2012, 01:10:08 PM »
This is way cool dude. Just love it.  :thumbsup:
When and what is the next mod?

Thanks haileah,
Got a new one on the breadboard. It's a microprocessor with a tiny graphic 128x32 pixel display.
Had some test animated graphics running on it. Real cool watching. When I'm done I may only be using it for text display.
The display uses little current because it doesn't need a backlight and current draw depends on what you are doing with it. So I imagine heavy graphics would draw more than plain text.
This one will be sized down considerably.

Offline L18

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Re: Micro-Controller Mod
« Reply #31 on: May 29, 2012, 01:02:42 AM »
Hello Breaktru, nice mod once again.  ;)
I have been working on my own microcontroller mod, but have difficulties finding a suitable current sensor, which did you use?

Online Breaktru

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Re: Micro-Controller Mod
« Reply #32 on: May 29, 2012, 07:14:15 AM »
Hello Breaktru, nice mod once again.  ;)
I have been working on my own microcontroller mod, but have difficulties finding a suitable current sensor, which did you use?

You can build your own op-amp sensor http://cds.linear.com/docs/Application%20Note/an105.pdf
or go with a Hall-Effect sensor.
http://www.digikey.com/product-detail/en/ACS712ELCTR-05B-T/620-1189-1-ND/1284606 (this is what I used)
http://www.robotshop.com/productinfo.aspx?pc=RB-Pol-171&lang=en-US
 http://amploc.com/store/index.html
« Last Edit: May 29, 2012, 07:18:59 AM by Breaktru Admin »

Offline L18

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Re: Micro-Controller Mod
« Reply #33 on: May 29, 2012, 09:35:24 AM »
First I though about using a opamp and resistor, but then started to search for a "ready" ic for current measurement, so I don't have to do the calibration etc.
That seems to be exactly what I have been looking for! Well, almost. ACS711 looks like what I need, because my design is working with 3.3V.  :)
Thank you very much!

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Re: Micro-Controller Mod
« Reply #34 on: May 29, 2012, 09:54:45 AM »
First I though about using a opamp and resistor, but then started to search for a "ready" ic for current measurement, so I don't have to do the calibration etc.
That seems to be exactly what I have been looking for! Well, almost. ACS711 looks like what I need, because my design is working with 3.3V.  :)
Thank you very much!

Note: The ACS711 is good for 3.3v MCU's and the ACS712 is 5v.
« Last Edit: August 14, 2012, 02:35:53 PM by Breaktru Admin »

Offline RAYMONDROOT

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Re: Micro-Controller Mod
« Reply #35 on: May 29, 2012, 02:31:35 PM »
i have been wondering about this exact same setup because of the vast possibility of it
ie setting an automatic clock adjust for the vapor that likes it a little weaker in the morning and a little stronger at night  or any combination during the day
MCU can hold pre-programmed settings for standard work day or long weekend  vacation etc you can even have override functions for your off days
sir you rock now lets see what this baby can really do   

Offline RAYMONDROOT

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Re: Micro-Controller Mod
« Reply #36 on: May 29, 2012, 02:46:43 PM »
those nice custom boards  in the pictures below the 8x2 and the schematics
are those your own design or pre fab
and if they are your own
do you plan on having them available for sale or a copy of the dwg file so we can play around with it in eagle
just wondering

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Re: Micro-Controller Mod
« Reply #37 on: May 29, 2012, 03:40:01 PM »
those nice custom boards  in the pictures below the 8x2 and the schematics
are those your own design or pre fab
and if they are your own
do you plan on having them available for sale or a copy of the dwg file so we can play around with it in eagle
just wondering

My own design. I have since changed the design to match the new microcontroller mod so it is now outdated.
Made it in ExpressPCB so a dwg file is not an option. It was struggle to use Eagle. Craig was right about the learning curve. Should have kept at it. It was a lot easier to use Express.

Offline RAYMONDROOT

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Re: Micro-Controller Mod
« Reply #38 on: May 29, 2012, 05:51:04 PM »
if you don't mind
shoot me a copy of what you got ill see if i can slap an eagle of it for you
i have extensive drafting background and even though you told me about eagle this morning i have been using it for about a year
(i just love learning about things that's why i asked what you use)

Online Breaktru

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Re: Micro-Controller Mod
« Reply #39 on: May 29, 2012, 06:02:42 PM »
if you don't mind
shoot me a copy of what you got ill see if i can slap an eagle of it for you
i have extensive drafting background and even though you told me about eagle this morning i have been using it for about a year
(i just love learning about things that's why i asked what you use)

Sorry Ray, I have been asked this many times and at this point in time, I have declined to post my mcu designs. Expect more modders showing their mcu mods soon. By the amount of PM's I have received there should be several on the way.

Offline L18

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Re: Micro-Controller Mod
« Reply #40 on: May 29, 2012, 11:42:52 PM »
Note: The ACS711 is a 25A sensor and the ACS712 is a 5A sensor
Thank you for the note, but the ACS711 is also available o as 12.5A version. That's also too much, but I think it'll have to do.
I'll try it, if it doesn't work, I'll have to go with the opamp and shunt.

Offline RAYMONDROOT

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Re: Micro-Controller Mod
« Reply #41 on: May 30, 2012, 01:27:45 AM »
Sorry Ray, I have been asked this many times and at this point in time, I have declined to post my mcu designs. Expect more modders showing their mcu mods soon. By the amount of PM's I have received there should be several on the way.
thats cool
where would i look for the other mcu's HERE or in another thread

Offline poorboy

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Re: Micro-Controller Mod
« Reply #42 on: August 16, 2012, 08:53:08 AM »
Hi breakthru, im just wondering how you wired the built-in charger and have it charge in parallel.

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Re: Micro-Controller Mod
« Reply #43 on: August 16, 2012, 02:19:34 PM »
Hi breakthru, im just wondering how you wired the built-in charger and have it charge in parallel.

Look at Reply#28

Offline Dznutz

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Re: Micro-Controller Mod
« Reply #44 on: March 09, 2013, 05:00:05 PM »
Hey Break you use a 3dpt slide or rocker?  I have been on mouser fro a few hours and cant seem to find what I am looking for. Let me state I can find slide switches just not small enough rockers to go into an encloser I am looking at.


I just started reading on micro controllers and all the little goodies with that but I am looking at this charging circuit you have set up.
« Last Edit: March 09, 2013, 05:06:56 PM by Dznutz »

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Re: Micro-Controller Mod
« Reply #45 on: March 09, 2013, 05:37:23 PM »
Hey Break you use a 3dpt slide or rocker?  I have been on mouser fro a few hours and cant seem to find what I am looking for. Let me state I can find slide switches just not small enough rockers to go into an encloser I am looking at.


I just started reading on micro controllers and all the little goodies with that but I am looking at this charging circuit you have set up.

The 3PDT slide switch I used was big at 1.0"L x 0.5"W, from Digikey
The one from Mouser is even bigger at 1.38"L x 0.78"W Mouser

This looks small, hard to read the crappy Chinese datasheet Newark
« Last Edit: March 09, 2013, 05:50:07 PM by Breaktru »

Offline Dznutz

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Re: Micro-Controller Mod
« Reply #46 on: March 09, 2013, 09:04:16 PM »
The 3PDT slide switch I used was big at 1.0"L x 0.5"W, from Digikey
The one from Mouser is even bigger at 1.38"L x 0.78"W Mouser

This looks small, hard to read the crappy Chinese datasheet Newark


Thank you kind sir :)

What do you think about the picaxe mcu's?

Offline CraigHB

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Re: Micro-Controller Mod
« Reply #47 on: March 09, 2013, 09:57:23 PM »
I think the PICaxe was a previous attempt at an "Arduino like" system.  I think Arduino excecutes the idea of a simple high level MCU interface better plus it uses C instead of BASIC.  The PICaxe never caught on like Arduino, but people used it to some extent.

Offline gknowes

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Re: Micro-Controller Mod
« Reply #48 on: August 22, 2013, 05:50:50 AM »
as always love your work Breaktru!!! lipo's lipo's lipo's love them , just remember they don't love you ! you could install a 2s balance cable & with a small lipo balance  charger , balance charge them at 7.4v this way it would be SAFER & charge the battery pack quicker  scared:

Offline gknowes

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Re: Micro-Controller Mod
« Reply #49 on: August 22, 2013, 06:08:25 AM »
one more thing , with a balance charger you can stop charging at 4.15v the batteries will last longer. over charging & over discharging . not good for LIPO BATTERIES :(

Breaktru Forum  |  eCigarette Forum  |  Modding  |  Topic: Micro-Controller Mod
 

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