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    Thermocouple Noise When Using 2.4G Wifi

    Brian, Thanks for response. Will insert the lines of code you provided above the EXIT 0 prior to my next cook and see what it does for my noise levels. Sorry I got you started on the dreaded "how do I solve this loop". I used to hate that loop and don`t loose sleep over it. Maybe a few liquid...
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    Thermocouple Noise When Using 2.4G Wifi

    Bryan, Makes sense. So my next question is, did you make this change in through the HM scripts or would i need to get into the Pi directly. Would like to lower power. I have a mesh set-up so my grill area has good 2.4ghz coverage, by I am currently working on node positioning so I get better...
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    Raspberry Pi Fried, Weird Display! Help!

    Tony, The only thing i see is in the upper left side of board by power jack is the swapped resistor and diode. You could have caused damage by applying 12+ to the servo. The resistor could be bad from too much current and thus the resistors wattage was exceeded and the resistor could be open or...
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    HeaterMeter Hardware v4.3.3, v4.3.4, and v4.3.5

    Looks like I have some time to order one. Just about finished with house and garage repair after last windstorm did it`s thing. Did finally fire up my HM this weekend after 3 months and pork tenderloin made wife a little happier.
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    Why can't this thing just work... (frustrated)

    Michel, Have you tried a different power source and a new sd card. Those item could possibly cause intermittent problems.
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    HeaterMeter Hardware v4.3.3, v4.3.4, and v4.3.5

    Brian, If I ordered the clear case would it be with this new clear filament?
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    HeaterMeter Hardware v4.3.3, v4.3.4, and v4.3.5

    Brian, Are the clear cases going to be on your site for purchase?
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    New Build LCD Display Issue

    I did the exact same thing on my build back when. I replaced the lcd driver chip, IC3, on the pushbutton board and I was off to the races. I suspect yours is damaged.
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    Battery Setup questions.

    I use a battery to power my heatermeter. Just like the dc source without any noise or ripple or harmonics you get from switching power sources. This is my battery setup. I use the Cabelas battery and I have a Battery Tender charger for my charger. This like is a good price for battery and...
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    Thermocouple Noise When Using 2.4G Wifi

    Brian, Have you looked at the OKI-78sr as the source of noise. I say that because last summer when I was looking at the possible source of noise I saw in the data sheet that this regulator was a true switching device. I started looking at other 78series devices to see if I could find a...
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    Thermocouple Noise When Using 2.4G Wifi

    Brian, I know this something that is not normally done with analog amps, but since we really are looking at a mv level change from the thermocouple, have you tried a .01uf cap across output to ground. I know this is not a standard practice, but if noise is amp generated, it should decouple noise...
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    Thermocouple Noise When Using 2.4G Wifi

    Brian, I saw the line coming out of the chip and thought that was the ref input when looking at schematic. Did you attach wire to pcb and connect it it Pi ground and then to the 12v ground to see if the shield grounding would make difference. Other than that, Sounds like if you want lower noise...
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    Thermocouple Noise When Using 2.4G Wifi

    Brian, Looking at the data sheet I see that they recommend a 10uf cap in parallel with the .1 uf cap on the VS+/- chip supply. I see down in the data sheet that this can be a shared cap. They still look like they recommend it to be located closed to the chip. Also they show the Reference pin...
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    Thermocouple Noise When Using 2.4G Wifi

    Brian, For me I see no difference between the 2.4 and 5Ghz readings on the noise graph. This graph was made using a corded power source instead of the usual battery setup since digging battery out of garage right now is not safe. The last graphs I posted were made with same corded power source...
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    Thermocouple Noise When Using 2.4G Wifi

    didn`t hook scope up since it is in the shop that got flattened last week from a wind storm, but here is my noise graph from heatmeter. Now on 5ghz radio. Thermocouple is shown. Graph looks the same whether I am using 2.4 ghz or 5 ghz radio. Also doing this in office where I am 4' from router...
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    Thermocouple Noise When Using 2.4G Wifi

    I wonder if the power output is higher with the 2.4ghz band. Granted the 2.4ghz band has better transmission than the 5ghz band. Also I have not looked, but I wonder if the bandwidth of the 2.4ghz could cause issues. My router selects 20, 40 mhz i believe. Would have to logon to see if it goes...
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    Thermocouple Noise When Using 2.4G Wifi

    I have not had good luck using aluminum foil for rf shields but that does not mean it does not work. I usually use copper foil. But besides that, have you tried the same test and observations using the original Pi3. That processor was clocked at 1.2 ghz versus the 3+ at 1.4ghz. I am curious if...
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    Thermocouple Noise When Using 2.4G Wifi

    If a RF cage around thermocouple amp might be a tough design, maybe changing the RC on the amp input to limit signals from DC to up to 37.5 hz might offer a solution. We don`t need the wider bandwidth, only mv changes from the welded junction. Sometimes we can mask signals we do not want by...
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    Thermocouple Noise When Using 2.4G Wifi

    I am wondering if what I experienced was similar to what you experienced. Brian, Went ahead and updated to your current snapshot. Just found a good one for you to try. Go into your config screen page. Make sure you have a damper connected and your heatermeter setup with a thermocouple. Now...
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    Feature Spotlight: LidTrack Smarter Lid Mode Detection

    Brian, Here is yesterdays cook of some pork tenderloins. From the graph, the first lid open event occurred when I reached 225 , setpoint, and it looks like lid tracker kicked in and made corrections. I then waited for about 5 minutes for temp to stabilize and then opened lid and added the...
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