Search results

You had one too? Now I know two people who had it on the same day, we should start a club. How much do you remember? I caught parts of the process on the big screen, but mostly don't remember it until I felt them uncork me. That kind of woke me up. PSA get yourself a bidet, makes the process...

The output of the esp32 gpio pin, when outputting a PWM signal, is a square wave, alternating between 0V and a peak of +3.3V based on the duty cycle its set to. If its an arduino device, it'll output a 5V peak signal. These fans require a 10V peak on the input pin for full speed and that's...

Is it really a USB-C plug? That seem like a disaster waiting to happen when someone plugs a charger into the fan or controller, or some other combination. +10V on a random USBC pin might fry something.

Oh, Power Earth, indeed. The blue/brown/G&Y combo is very typical European power color code. Try connecting a multimeter between the FG and GND lines and see if it changes as you change the PWM input?

That's one sexy access door. I wonder what the FG and PE lines are for, I suspect one is for reporting the actual speed of the fan?

ya the cedar frame outside is 26x24". This round had a couple floods in early veg and it was mopey for too long until it picked up. Had to flip earlier than I hoped cuz we're pressed on time.

What do you mean you humans? What color is the sky in your world? :p

Keeping it compact, end of week 6 on a 9-week strain.

“If the president decides that his rival is a corrupt person and he orders the military … to assassinate him, is that within his official acts for which he can get immunity?” Justice Sonia Sotomayor asked Trump attorney John Sauer. Sauer, invoking an argument he made previously before Thursday...

For shits & giggles, I decided to wire up a cob and see how it looked. Here's the backside of the cob while running at 0.2A (& 30.8V for ~6W) The LEDs shine thru the ceramic support.

What's going on with the specs for this cob? I can't find a clear reference to that particular chip. The specs only show the cxa3590 as having the Y (for 93+ cri), not the cxb3590?

Oh, whoops, he was asking about the -B. Ya it has external and no internal

Both -A and -AB have the Io adjustment, meaning there's a little dial onboard the drivers' circuit that you can adjust to control the maximum amount of current the driver will output. But this little dial can be fragile and it's not recommended you use it as the primary means of dimming your...

Finally got around to buying a Sensirion SDC40 CO2 sensor, grafted it to the esp8266 that monitors canopy temp & humidity (with a Sensirion SHT30), futzed around with calibrating it, and recorded a week's worth of data: I'm still having issues calibrating the PID controller that does heat...

Thanks for the vote of confidence but please don't bunch me in with the spectrum specialists. I gotta pick my battles and prefer to stick with knowing plenty about electrical circuits, automation, environmental control, programming, engineering, thermal dynamics, fluid mechanics, etc. :)

Wikipedia has a good entry on it, used to describe how creationists try to bury the conversation under a mountain of bullshit to the point where you just give up, and they claim victory

If it weren't for the gish gallops of bad faith arguments they wouldn't have anything at all.

Zero chemicals. Not even water, which is a chemical.

"Something never some before in this Country!). We did this once before to tremendous success" So which is it?

I bet the heat from the flaming dumpster fire of a process to replace him will be felt from the center of the sun.