Micro-Controller Mod
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Can we agree at the beginning, is this one officially gerbil or hamster powered? 
Good to see you are rescuing us from the Kabelsalat too.
Good to see you are rescuing us from the Kabelsalat too.Wow, that's a lot of work! Did you etch the boards? Is the display in the box the 8x2? Many questions, will wait for details 
Great work(in progress)!
Great work(in progress)!
Wow, that's a lot of work! Did you etch the boards? Is the display in the box the 8x2? Many questions, will wait for details
Great work(in progress)!
I'm lazy Robert, it should have been completed weeks ago. Everyday or so, I do just a little work on it. It's actually completed, just have to finish putting it into a box I settled on but not really happy with.
Yes it's an 8x2 LCD. I'll post more details as I go along. Micro-Controller
It's basically Micro-Controller 101 technology. Nothing elaborate like my friend CraigHB's design.
Pure awesome.. constantly in awe of how far you push modding! thanks for the share!
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You sir, amaze me!
My mind has been blown!
One question, what would it take to design a board that can implement all that you have just done into one?
LCD screen / USB charger / power switch / fire switch / selector switch / controller
or is it not worth the effort & space saved?
Exuse my simple mind. I just ask because all that is more confusing than the birdsnest of wires behind the dash of my '84 Jetta....
My mind has been blown!
One question, what would it take to design a board that can implement all that you have just done into one?
LCD screen / USB charger / power switch / fire switch / selector switch / controller
or is it not worth the effort & space saved?
Exuse my simple mind. I just ask because all that is more confusing than the birdsnest of wires behind the dash of my '84 Jetta....
Thanks Buzz.
Definitely more work than just a VV mod. Is it worth it.... Still vapes the same as a VV mod but looks more impressive. It's just a toy for those who like to look at digital display numbers...
Although it's quite accurate. Took me awhile to get it going, working on it between projects.
I tidied up the birds nest a bit. Replaced heavier wiring with lighter gauge for low current signal circuitry and cut down on the lengths as I mounted each component into the enclosure. Almost finished. Got to get my .... out of this chair first...
I look at HVAC/plumbing/electrical drawings all day (i do structural),
but that circuit board stuff gives me a headache...
I wish i had the patience & capability to do what you did.
I just gave in and bought a Kick
but that circuit board stuff gives me a headache...
I wish i had the patience & capability to do what you did.
I just gave in and bought a Kick
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
USB Charging Circuit
Series 2x Li-Po 20c batteries for vaping
Parallel batteries for charging via USB
8x2 LCD Display
Slotted for venting on bottom
Display Shows:
Output Voltage - Amperage - Resistance of Atty - Wattage - Battery Level in Percentage
I compared voltage and amperage with my Digital Multimeter and the Mod Display readings are exact.
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
USB Charging Circuit
Series 2x Li-Po 20c batteries for vaping
Parallel batteries for charging via USB
8x2 LCD Display
Slotted for venting on bottom
Display Shows:
Output Voltage - Amperage - Resistance of Atty - Wattage - Battery Level in Percentage
I compared voltage and amperage with my Digital Multimeter and the Mod Display readings are exact.
Tru, that looks truly badass, I like the user recognition feature for security. If I look around, will I see pics of the insides?
That is awesome, wins my vote for mod of the year.
I got a launchpad around here somewhere was going to do something similar , I wanted volts and amps and battery level reader. but i have been side tracked on this CNC router project for awhile now. Actually i scrapped the router and am now going to buy a mill and CNC that. Going to be a few more months but when i am up and running a custom made aluminum enclosure would be cake. Just thought i would throw that out there if your still needing perfectly built box to throw that stuff in. i hope to order the mill this week but then i will be moving to Colorado next month. 1400 sq foot basement to set up shop in. Going to be awesome.
I got a launchpad around here somewhere was going to do something similar , I wanted volts and amps and battery level reader. but i have been side tracked on this CNC router project for awhile now. Actually i scrapped the router and am now going to buy a mill and CNC that. Going to be a few more months but when i am up and running a custom made aluminum enclosure would be cake. Just thought i would throw that out there if your still needing perfectly built box to throw that stuff in. i hope to order the mill this week but then i will be moving to Colorado next month. 1400 sq foot basement to set up shop in. Going to be awesome.
That is awesome, wins my vote for mod of the year.
I got a launchpad around here somewhere was going to do something similar , I wanted volts and amps and battery level reader. but i have been side tracked on this CNC router project for awhile now. Actually i scrapped the router and am now going to buy a mill and CNC that. Going to be a few more months but when i am up and running a custom made aluminum enclosure would be cake. Just thought i would throw that out there if your still needing perfectly built box to throw that stuff in. i hope to order the mill this week but then i will be moving to Colorado next month. 1400 sq foot basement to set up shop in. Going to be awesome.
Making a custom enclosure would be ideal. I would have liked the depth about a 1/2" less. It's a trade off when selecting stock boxes. Very frustrating finding a good one.
Fantastic news Jav. The Colorado shop would be a dream come true to most of us modders. I would put my bed, fridge and TV in it.
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.
You can focus on just the Wattage reading and adjust the pot to a desired wattage.
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.
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.
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