Lalo_uy
Well-Known Member
Looking at my firs batch with iSpindle I wonther if Temp shuld need to be factored in the SG calc??? After initial fermentation y stabilization y do 2 temp steps, first to 15C, then to 7C
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I feel kind of dumb right now. I finally got more parts in from China and put them together and it did the same thing and was overheating. I then flipped the polarity of the battery and now it's working fine and I'm getting output into Ubidots. So I guess I had the battery polarity flipped when I tried last time. I could've sworn I tried the battery both ways, but maybe I didn't. Anyways it's working now, yay!I recommend ordering extras, if you can swing it. Let me know about putting one together for you.
Gotcha, cool. That was going to be my next step,just was hoping there was a native value it could send in F instead of changing it after.Good news! And I didn't notice the battery polarity being backwards. But, looking back at the photos, sure enough it is. So who's the dummy?
If your referring to the temperature value in Ubidots, I get the temp in C° also. I had to create a derived value to get a F° reading. (F=C°x1.8+32)
Another quick question, it shows the battery level after a full charge as .02. Is there someway you guys are converting that into a useful number?Good news! And I didn't notice the battery polarity being backwards. But, looking back at the photos, sure enough it is. So who's the dummy?
If your referring to the temperature value in Ubidots, I get the temp in C° also. I had to create a derived value to get a F° reading. (F=C°x1.8+32)
Yeah mine is set at 200 as well as the default setting - I guess if my reading is at .02 right now I could change it to 42000 to get it to read 4.2 at full voltage. Does that sound correct?I don't have access to mine right now, but there is a Battery conversion factor in the ispindel configuration. What is it currently set to? The github page shows that the default might be 200.
View attachment 597923
Yeah mine is set at 200 as well as the default setting - I guess if my reading is at .02 right now I could change it to 42000 to get it to read 4.2 at full voltage. Does that sound correct?
Hi does anyone know how to make calibration formula properly using this tool ? http://www.ispindel.de/tools/calibration/calibration.htm I want to use Degree 3 formula but this tool returns a formula in SG and not the Plato. Then iSpindel shows SG instead of Plato which is not good. The excel calibration tool generates formula properly in Plato but it's only 2 Degree. Thx!
well, I should’ve considered Plato users.
You can just input Plato vale in “SG or plato” and tilt fields, and ignore all other fields.
Unfortunatelly there is no ofset you can set but you could try to modify the firmware.Is there an offset to calibrate the temperature? Mines 1 degC out. I use a calibrated thermapen to cross check all my measuring devices.
Okay I just finished soldering my iSpindel, but it doesn't seem to work. I initiallay flashed the wemos to check if it was working before I soldered. I then followed the soldering guide.
When I hook up the charging unit with the usb the red led is constant and the blue is flashing. I'm not sure how I trouble shoot this. Any suggestions will be greatly appreciated!
The red LED shows that it is charging the battery. It should turn blue when fully charged. What does the blue flash look like? If it is about a second or so apart, it might be in configuration mode.
If so, look for the iSpindel network in your network places and connect to it.
Which charging module did you get? I'll have to double check mine, but I believe it only has a single LED. Are you able to put the Wemos into A.P. mode? If so, try to access the configuration page and see if everything is working. Pictures of the assembled boards may help diagnosis. (If you can)The red and the blue LEDs on the charging module are the ones I'm talking about. The red one is constant and the blue is flashing at the same time. This is not described in the data sheet for the charger.
The blue LED on the ESP8266 only lights up when I press restart, but only shortly. Before I soldered the whole thing and removed the capacitor the ESP worked well enough I think.
I figure something is wrong with my charger, my battery, my usb cable (old HTC charging cable) or my soldering. This is my first time soldering, so that is very possible, but I don't know how to find the problem. Is there any way to check the charger and the battery with a multimeter?
Well, I did a little research since I cannot access my iSpindel at the moment.
It appears that mine does have 2 LED's and a video I found online shows that when a battery is not connected, it blinks in a manner similar to what you are describing, but the video shows different colors. (It wouldn't be the first time I've seen the LED colors be different.) Is this similar to what you are seeing? If so, check your battery connections.
What is the temperature corrected option? I got the same results if I click it or not or if I also enter like 100 C degree, does not change anything. Is it kind of artifact?The formula doesn't care about plato or gravity.
It just takes input and calculate the result.
The formula is derived by a series of (SG, tilt) values.
You can just use Plato values as SG, and get a formula that will calculate Plato.
What is the temperature corrected option? I got the same results if I click it or not or if I also enter like 100 C degree, does not change anything. Is it kind of artifact?
Looks good in the pictures and we've exhausted my resources, unfortunately.
When you power on the Wemos, you won't get anything accept a few short bursts of the LED while it boots up. Will the LED flash if you hit the reset button? If so, try pushing it a couple of times to see if you can get it into A.P. mode.
Does the position of the switch make any difference to the charger's LEDs? How are the Battery Leads connected to the shield? Looks like it might be a Molex or JSP connection. do you have a multimeter to check connections?
Huh.. I read somewhere that, that LED was not necessary and significantly reduced the battery life.. It's too late now anyway.As a side note, I don't recommend removing the LED on the Gyro, the battery life doesn't seem to be effected greatly and having the LED can help diagnose problems. Like right now, you would know if it was getting power from the Wemos.
oh ok, yes I am very aware of hydrometer being calibrated at certain temperature. I actually use your html file from github. If I click SG and tilt and then I tick temperature corrected then there is an invalid value error, like it does not see entered SG. Is it only for BRIX? Whatever I enter, the same entered values gives me the same values in table and same formula, I can tick or untick the temp correction, change from 5-20-50-90oC and nothing change. How does it suppose to work?
I didn't really check all the functions and never used it again.
Please check the new version:
https://github.com/vitotai/BrewPiLess/blob/master/extra/calibrationSG.htm
Read probably half the posts in this thread, after you've got these built, how are these things working, are they providing accurate readings? I'm wondering how something like my excessively bubbling Stout, leaving residue on the lid and upper side of this, might change the balance and create inaccurate readings? Real world, do these work?
Second, anyone in Western PA doing these?
Who me? Yeah, it's hard to get an angle mid ferment that is not skewed from krausen buildup. Additionally, I don't want to open the fermenter mid-ferment for a hydrometer reading.Are you using only 2 datapoint to get the formula?
My iSpindel works pretty well if correctly calibrated. However, every time I open the cap to recharge, the calibration is off. Therefore, I develop a “brew and calibrate” feature in BrewPiLess, which starts with plan water and OG and refines as more data is input.
The result is very satisfying.
Krausen and bubbles do affect the readings. Almost all logs I recorded show a rise at the point when end of high krausen.
yes but with brew and calibrate you need to check the gravity with hydrometer few times during fermentation? Or it is modifying the current formula to fit new datapoints? (not just adding datapoints as this will be useless and wrong because the point of gravity/angle in same liquid changed). I mean still this is mostly to see at what stage fermentation is.
or the method @gromitd is using is better, to measure angle in plain water and OG and this should give good estimation? (shouldn't right? As this is not a simple straight funciton?)
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