Recent content by klara niema

  1. K

    hey, I went the same way as you just cut off until 4mm so it would fit nice and didn't make a...

    hey, I went the same way as you just cut off until 4mm so it would fit nice and didn't make a rim i've posted some pictures on the stinkbud forum thanks for this :p I know you use pure nft, are there any advantages using the spraysetup or do u think the nft way gives the exact same effect? is...
  2. K

    Harvest a Pound Every Three Weeks!

    stinkbud i have a question i'm making a system but ive noticed that the caps are not watertight i could silicone them but since i work a little different and have a drain under the fencepost i should have to silicone both ends and i won't be able to remove my spraybar to change sprayers anymore...
  3. K

    heya, I was looking to do the same as you in keeping the res outside my tent. I thought about a...

    heya, I was looking to do the same as you in keeping the res outside my tent. I thought about a uniseal/bulkheadbut this will keep some water in the end of the rail since it's a bit higher than the pipe is that's bad or not? i saw you used a threaded coupler with cut holes in the sides did you...
  4. K

    Just one last question in your schematic...

    Just one last question in your schematic http://www.rollitup.org/t/i-need-help-5v-to-10v-pwm.894383/ of the opamp i understand the schematic just the choice of the 22k how did you come up with this size of resistance i know making them equal is to get your gain (22/22 + 1) = 2 but wy 22 or is...
  5. K

    thanks

    thanks
  6. K

    oh thanks alot this is just what i needed :)

    oh thanks alot this is just what i needed :)
  7. K

    you mean Raspberry Pi? it's to transform 0-5v pwm on a digital pin to 0-10v pwm or analog

    you mean Raspberry Pi? it's to transform 0-5v pwm on a digital pin to 0-10v pwm or analog
  8. K

    Hi, i made a post in one of your posts i still would like the schematic if possible :p but i...

    Hi, i made a post in one of your posts i still would like the schematic if possible :p but i wanted to ask something related I was thinking about using a 100k digital potmeter that is controllable via my arduino is this a bad way? do u have more control via the other method? thanks btw
  9. K

    Arduino experiments - Datalogger for the grow room

    hey in the intro you were talking about the 0-10v dimming of the hlg drivers from the arduino do u have a schematic how to do this? the programming of arduinos is nog problem always those dem eletronics that are needed :p
  10. K

    hey, i'm atm trying to get the dimming part working from my arduino but the schemes that SD is...

    hey, i'm atm trying to get the dimming part working from my arduino but the schemes that SD is giving aren't working i saw you made a post in dec on the forum , did you get to fix it with the opamp? and i'm more a programmer don't have eletronics background so would be generous if you could show...
  11. K

    Cree CXB3590 Build

    do u still need an airco with the leds in a sealed grow room?
  12. K

    Heatsinks in Europe

    mail to tme Hi, I heard from someone on a forum it was possible if you don't buy as a company you don't have to pay vat, if you contact tme before you order. Is this correct can i avoid paying vat? "Is any of the one who order from tme mailed them before to ask if it was possible to avoid...
  13. K

    Heatsinks in Europe

    I didnt want to offend you :) but from reading all pages they recommend around 7 as a minimum, then i point to supra for this number :) offcourse it will work but without a good temp test of the back of the chip you have no idea how warm it is and this will influence the lumen and the life...
  14. K

    Heatsinks in Europe

    has only 5 mm base thickness i think that a little small to be good
  15. K

    Heatsinks for DIY LED lamps

    Where? :p
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