uT_u 8HP micro Temps Utile build

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baszor
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Post by baszor » Thu Nov 07, 2019 9:25 am

Altitude909 wrote:^
No difference.
Thanks!

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Post by belzrebuth » Thu Nov 07, 2019 11:19 am

Anyone have a .hex file for the firmware?

Or I should compile it myself?

edit : D'oh it's here..https://github.com/mxmxmx/temps_utile-/releases

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pix
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Re: uT_u 8HP micro Temps Utile build

Post by pix » Tue Mar 24, 2020 9:59 pm

I just finished one and the encoder is in reverse orientation. Is there a way to change this in firmware or do I need to get new encoders?

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Re: uT_u 8HP micro Temps Utile build

Post by Altitude909 » Wed Mar 25, 2020 5:28 am

^
Read the manual. "calibration"

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pix
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Re: uT_u 8HP micro Temps Utile build

Post by pix » Thu Mar 26, 2020 1:20 am

found it, thanks!

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Faye
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Re: uT_u 8HP micro Temps Utile build

Post by Faye » Tue Jul 07, 2020 3:38 pm

quick question regarding the v1.2 PCB:
For R26, R30, R34 and R38 the diptrace says 75k, while in the BOM it's 100k.

which is correct?

EDIT: got my answer. 100k it is.

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Faye
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Re: uT_u 8HP micro Temps Utile build

Post by Faye » Mon Jul 13, 2020 3:48 pm

So I successfully finished uT_u.
Everything works fine.
However, I noticed a very low, barely audible buzzing noise. Can't really localize the exact location on the PCB. It is only present when I'm in menu mode. As soon as the screen changes to screensaver, the buzzing disappears.
Do I have a problem?

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Re: uT_u 8HP micro Temps Utile build

Post by Polysilicon » Wed Aug 19, 2020 9:36 pm

I just finished a build, flashed the software to it, and it starts up great, but the issue is when I'm calibrating it.

There is no voltage coming out of 4D. Is there something I should look at?

Thanks!

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Altitude909
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Re: uT_u 8HP micro Temps Utile build

Post by Altitude909 » Thu Aug 20, 2020 7:09 am

Polysilicon wrote:
Wed Aug 19, 2020 9:36 pm
I just finished a build, flashed the software to it, and it starts up great, but the issue is when I'm calibrating it.

There is no voltage coming out of 4D. Is there something I should look at?

Thanks!
You need to jumper the header to DAC and make sure you have the extra single pin connected on the teensy.

I keep meaning to fix that, its a carry over from the old board, CLK4 isnt connected to the teensy, pin 29 is just a pad under the teensy and IIRC, it actually connected it at one point and it appears that it no longer appears as a destination in the software

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Re: uT_u 8HP micro Temps Utile build

Post by Polysilicon » Thu Aug 20, 2020 11:08 am

Ok, I have the extra pin connected to the Teensy.

And I need to connect the square pad to the middle pad of the 3 pin header towards the bottom of the board?

Thanks for the reply.

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Altitude909
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Re: uT_u 8HP micro Temps Utile build

Post by Altitude909 » Thu Aug 20, 2020 11:42 am

correct

Polysilicon
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Re: uT_u 8HP micro Temps Utile build

Post by Polysilicon » Thu Aug 20, 2020 3:23 pm

Altitude909 wrote:
Thu Aug 20, 2020 11:42 am
correct
Worked like a charm. Thank you!

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Re: uT_u 8HP micro Temps Utile build

Post by aragorn23 » Mon Oct 05, 2020 9:54 am

I've just finished a build and programmed it and I'm having an issue where the screen is only half on, i.e. only every second row is lit. Any idea what could be causing this? I've built a couple of other uT_u's using the same batch of screens and they've all been fine.

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Re: uT_u 8HP micro Temps Utile build

Post by khladomysl » Thu Jan 14, 2021 5:39 pm

Hi! I've just built a module.
From the first few tests, everything looks OK except the CV3 input.

When I was calibrating at the ADC stage, it showed me a value around ~2000, while for other inputs it was near zero.

In the attached image there is a debug info where you can also see a difference.
With constant voltage as an input, I can't go above 0 but can go around -4096 (while other channels are +-2048).

Any clues where the problem is? I've checked the soldering around this input, looks fine to me.
photo_2021-01-15_00-34-00.jpg

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Altitude909
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Re: uT_u 8HP micro Temps Utile build

Post by Altitude909 » Thu Jan 14, 2021 6:01 pm

look again. its a soldering issue on the input or a wrong value. check the opamp legs

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Re: uT_u 8HP micro Temps Utile build

Post by khladomysl » Thu Jan 14, 2021 6:14 pm

[removed after original post edit]

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Re: uT_u 8HP micro Temps Utile build

Post by khladomysl » Fri Jan 15, 2021 6:07 am

Altitude909 wrote:
Thu Jan 14, 2021 6:01 pm
look again. its a soldering issue on the input or a wrong value. check the opamp legs
Measuring soldered 100Ks I've noticed that many of them are showing much less value (I've checked other nominals and they're fine).
The strange thing is that those 100Ks are 0.1%.
Can it be possible that they were damaged while soldering?
(Labels on top indicates that those are the correct value).
Or can they maybe not show the value because they're already soldered to the PCB?

I've used a soldering paste and quick iron touch to solder all of the 0805, so I guess it is nothing critical out there.
Also, I've checked the one unsoldered to make sure there is no mistake, and it is the correct 0.1% value.

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Re: uT_u 8HP micro Temps Utile build

Post by pjbulls » Fri Jan 15, 2021 7:58 am

It's more likely that there is a short somewhere which is creating some parallel resistance, I suppose it ispossible that resistors get damaged during soldering but you'd really have to be doing something wrong then.

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Re: uT_u 8HP micro Temps Utile build

Post by Altitude909 » Fri Jan 15, 2021 8:00 am

when you have a way off ADC input like that, that usually means an open connection between the input and the teensy. Its 4 resistors and half an opamp per channel, check those again. Using 0.1 parts is really not needed, youre trimming the ADC anyway so it literally makes no difference if you use 5% or 0.001%. You cant measure resistors in circuit in most cases

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Re: uT_u 8HP micro Temps Utile build

Post by khladomysl » Fri Jan 15, 2021 2:08 pm

Altitude909 wrote:
Fri Jan 15, 2021 8:00 am
when you have a way off ADC input like that, that usually means an open connection between the input and the teensy. Its 4 resistors and half an opamp per channel, check those again. Using 0.1 parts is really not needed, youre trimming the ADC anyway so it literally makes no difference if you use 5% or 0.001%. You cant measure resistors in circuit in most cases
So, I replaced a few suspicious resistors, and after this, all inputs started to behave in a strange way.
When in debug mode and placing constant voltage from channel 2 form Math, all channels can't go above value 300, but can go down up to -4096.
Also, when there is an input in channel 1 and 3, it seems like the same input starts bleeding to channel 4 because it changes simultaneously with those channels.
I replaced both of op-amps and cleaned a board, but this issue still persists. Honestly, I don't even what can cause this behavior. I checked for some possible shorting of jacks, but it looks OK.

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Re: uT_u 8HP micro Temps Utile build

Post by pld » Fri Jan 15, 2021 2:45 pm

In your original post, a channel that's ~2000 off, that smells like 1.65v (2048/4096*3.3) missing, i.e. check the -5V reference. That's also common to all channels, and an incorrect load resistor might explain some symptoms.
You should be seeing 1.65v at the opamp outputs with 0V in and 0/3.3V at +-5V (if I'm remembering right).
Not sure how you can get a range > 4096 on any given channel though.

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Re: uT_u 8HP micro Temps Utile build

Post by khladomysl » Fri Jan 15, 2021 3:34 pm

pld wrote:
Fri Jan 15, 2021 2:45 pm
In your original post, a channel that's ~2000 off, that smells like 1.65v (2048/4096*3.3) missing, i.e. check the -5V reference. That's also common to all channels, and an incorrect load resistor might explain some symptoms.
You should be seeing 1.65v at the opamp outputs with 0V in and 0/3.3V at +-5V (if I'm remembering right).
Not sure how you can get a range > 4096 on any given channel though.
Thanks for the advice.
To make sure, I replaced C28, R39, and C23. I've verified that those are correct values with DVM.
But after this, I'm reading -0.725V instead of what I believe should be -5V at the output of R39 (on the input I'm reading about -11.33V).
Am I checking this wrong or there might be a problem somewhere?

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Re: uT_u 8HP micro Temps Utile build

Post by khladomysl » Tue Jan 19, 2021 2:56 pm

khladomysl wrote:
Fri Jan 15, 2021 3:34 pm
pld wrote:
Fri Jan 15, 2021 2:45 pm
In your original post, a channel that's ~2000 off, that smells like 1.65v (2048/4096*3.3) missing, i.e. check the -5V reference. That's also common to all channels, and an incorrect load resistor might explain some symptoms.
You should be seeing 1.65v at the opamp outputs with 0V in and 0/3.3V at +-5V (if I'm remembering right).
Not sure how you can get a range > 4096 on any given channel though.
Thanks for the advice.
To make sure, I replaced C28, R39, and C23. I've verified that those are correct values with DVM.
But after this, I'm reading -0.725V instead of what I believe should be -5V at the output of R39 (on the input I'm reading about -11.33V).
Am I checking this wrong or there might be a problem somewhere?
There was a soldering problem somewhere, but I managed to fix it, now all inputs are working (and the point mentioned started reading-5V).
Thanks for the advice again.

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mutronic
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Re: uT_u 8HP micro Temps Utile build

Post by mutronic » Sat Feb 20, 2021 9:41 pm

I just put together a micro temps and I cannot get the teensy powered on. I can program it fine, but when I plug it into the board I get nothing. My bridge rectifier is oriented correctly as well as all my ICs. DAC pin is in. DAC jumper is set. I didn't set the reset button, but I didn't think that would affect the powering on of the teensy, unless I am mistaken.

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Re: uT_u 8HP micro Temps Utile build

Post by mutronic » Sat Feb 20, 2021 10:55 pm

Code: Select all

22:32:52.054 (loader): Open File event
22:32:57.028 (loader): File "TU_v1.3.1.hex". 102396 bytes, 39% used
22:33:00.850 (loader): Auto Button event
22:33:00.850 (loader): Auto mode: enabled
22:33:02.743 (loader): HID/macos: attach callback
22:33:02.785 (loader): Device came online, code_size = 262144
22:33:02.786 (loader): Board is: Teensy 3.2 (MK20DX256), version 1.03
22:33:02.800 (loader): File "TU_v1.3.1.hex". 102396 bytes, 39% used
22:33:02.806 (loader): set background IMG_ONLINE
22:33:02.820 (loader): File "TU_v1.3.1.hex". 102396 bytes, 39% used
22:33:02.825 (loader): can't open file '/Users/xe1ex/Documents/TU_v1.3.1.elf' (error 2: No such file or directory)
22:33:02.826 (loader): elf file is for Unknown Board
22:33:02.830 (loader): begin operation
22:33:02.858 (loader): flash, block=0, bs=1024, auto=1
22:33:02.861 (loader):  gauge old value = 0
22:33:02.904 (loader): flash, block=1, bs=1024, auto=1
22:33:02.907 (loader):  gauge old value = 1
22:33:02.914 (loader): flash, block=2, bs=1024, auto=1
22:33:02.917 (loader):  gauge old value = 2
22:33:02.918 (loader): flash, block=3, bs=1024, auto=1
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22:33:02.951 (loader): flash, block=5, bs=1024, auto=1
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22:33:03.150 (loader): flash, block=28, bs=1024, auto=1
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22:33:03.155 (loader): flash, block=29, bs=1024, auto=1
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22:33:03.202 (loader): flash, block=35, bs=1024, auto=1
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22:33:03.225 (loader): flash, block=36, bs=1024, auto=1
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22:33:03.259 (loader): flash, block=39, bs=1024, auto=1
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22:33:03.263 (loader): flash, block=40, bs=1024, auto=1
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22:33:03.307 (loader): flash, block=45, bs=1024, auto=1
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22:33:03.314 (loader): flash, block=46, bs=1024, auto=1
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22:33:03.319 (loader): flash, block=47, bs=1024, auto=1
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22:33:03.323 (loader): flash, block=48, bs=1024, auto=1
22:33:03.326 (loader):  gauge old value = 48
22:33:03.331 (loader): flash, block=49, bs=1024, auto=1
22:33:03.334 (loader):  gauge old value = 49
22:33:03.336 (loader): flash, block=50, bs=1024, auto=1
22:33:03.355 (loader):  gauge old value = 50
22:33:03.361 (loader): flash, block=51, bs=1024, auto=1
22:33:03.364 (loader):  gauge old value = 51
22:33:03.366 (loader): flash, block=52, bs=1024, auto=1
22:33:03.369 (loader):  gauge old value = 52
22:33:03.371 (loader): flash, block=53, bs=1024, auto=1
22:33:03.373 (loader):  gauge old value = 53
22:33:03.379 (loader): flash, block=54, bs=1024, auto=1
22:33:03.382 (loader):  gauge old value = 54
22:33:03.383 (loader): flash, block=55, bs=1024, auto=1
22:33:03.403 (loader):  gauge old value = 55
22:33:03.409 (loader): flash, block=56, bs=1024, auto=1
22:33:03.412 (loader):  gauge old value = 56
22:33:03.414 (loader): flash, block=57, bs=1024, auto=1
22:33:03.417 (loader):  gauge old value = 57
22:33:03.418 (loader): flash, block=58, bs=1024, auto=1
22:33:03.421 (loader):  gauge old value = 58
22:33:03.423 (loader): flash, block=59, bs=1024, auto=1
22:33:03.426 (loader):  gauge old value = 59
22:33:03.432 (loader): flash, block=60, bs=1024, auto=1
22:33:03.435 (loader):  gauge old value = 60
22:33:03.437 (loader): flash, block=61, bs=1024, auto=1
22:33:03.456 (loader):  gauge old value = 61
22:33:03.462 (loader): flash, block=62, bs=1024, auto=1
22:33:03.465 (loader):  gauge old value = 62
22:33:03.466 (loader): flash, block=63, bs=1024, auto=1
22:33:03.469 (loader):  gauge old value = 63
22:33:03.471 (loader): flash, block=64, bs=1024, auto=1
22:33:03.474 (loader):  gauge old value = 64
22:33:03.478 (loader): flash, block=65, bs=1024, auto=1
22:33:03.481 (loader):  gauge old value = 65
22:33:03.483 (loader): flash, block=66, bs=1024, auto=1
22:33:03.485 (loader):  gauge old value = 66
22:33:03.487 (loader): flash, block=67, bs=1024, auto=1
22:33:03.506 (loader):  gauge old value = 67
22:33:03.513 (loader): flash, block=68, bs=1024, auto=1
22:33:03.516 (loader):  gauge old value = 68
22:33:03.518 (loader): flash, block=69, bs=1024, auto=1
22:33:03.520 (loader):  gauge old value = 69
22:33:03.522 (loader): flash, block=70, bs=1024, auto=1
22:33:03.524 (loader):  gauge old value = 70
22:33:03.531 (loader): flash, block=71, bs=1024, auto=1
22:33:03.534 (loader):  gauge old value = 71
22:33:03.535 (loader): flash, block=72, bs=1024, auto=1
22:33:03.538 (loader):  gauge old value = 72
22:33:03.539 (loader): flash, block=73, bs=1024, auto=1
22:33:03.559 (loader):  gauge old value = 73
22:33:03.565 (loader): flash, block=74, bs=1024, auto=1
22:33:03.568 (loader):  gauge old value = 74
22:33:03.570 (loader): flash, block=75, bs=1024, auto=1
22:33:03.573 (loader):  gauge old value = 75
22:33:03.579 (loader): flash, block=76, bs=1024, auto=1
22:33:03.582 (loader):  gauge old value = 76
22:33:03.584 (loader): flash, block=77, bs=1024, auto=1
22:33:03.586 (loader):  gauge old value = 77
22:33:03.588 (loader): flash, block=78, bs=1024, auto=1
22:33:03.591 (loader):  gauge old value = 78
22:33:03.596 (loader): flash, block=79, bs=1024, auto=1
22:33:03.616 (loader):  gauge old value = 79
22:33:03.622 (loader): flash, block=80, bs=1024, auto=1
22:33:03.625 (loader):  gauge old value = 80
22:33:03.629 (loader): flash, block=81, bs=1024, auto=1
22:33:03.633 (loader):  gauge old value = 81
22:33:03.634 (loader): flash, block=82, bs=1024, auto=1
22:33:03.637 (loader):  gauge old value = 82
22:33:03.639 (loader): flash, block=83, bs=1024, auto=1
22:33:03.642 (loader):  gauge old value = 83
22:33:03.647 (loader): flash, block=84, bs=1024, auto=1
22:33:03.650 (loader):  gauge old value = 84
22:33:03.651 (loader): flash, block=85, bs=1024, auto=1
22:33:03.654 (loader):  gauge old value = 85
22:33:03.656 (loader): flash, block=86, bs=1024, auto=1
22:33:03.676 (loader):  gauge old value = 86
22:33:03.684 (loader): flash, block=87, bs=1024, auto=1
22:33:03.687 (loader):  gauge old value = 87
22:33:03.689 (loader): flash, block=88, bs=1024, auto=1
22:33:03.691 (loader):  gauge old value = 88
22:33:03.697 (loader): flash, block=89, bs=1024, auto=1
22:33:03.700 (loader):  gauge old value = 89
22:33:03.702 (loader): flash, block=90, bs=1024, auto=1
22:33:03.705 (loader):  gauge old value = 90
22:33:03.707 (loader): flash, block=91, bs=1024, auto=1
22:33:03.710 (loader):  gauge old value = 91
22:33:03.717 (loader): flash, block=92, bs=1024, auto=1
22:33:03.720 (loader):  gauge old value = 92
22:33:03.722 (loader): flash, block=93, bs=1024, auto=1
22:33:03.725 (loader):  gauge old value = 93
22:33:03.729 (loader): flash, block=94, bs=1024, auto=1
22:33:03.749 (loader):  gauge old value = 94
22:33:03.755 (loader): flash, block=95, bs=1024, auto=1
22:33:03.758 (loader):  gauge old value = 95
22:33:03.763 (loader): flash, block=96, bs=1024, auto=1
22:33:03.766 (loader):  gauge old value = 96
22:33:03.767 (loader): flash, block=97, bs=1024, auto=1
22:33:03.770 (loader):  gauge old value = 97
22:33:03.772 (loader): flash, block=98, bs=1024, auto=1
22:33:03.775 (loader):  gauge old value = 98
22:33:03.780 (loader): flash, block=99, bs=1024, auto=1
22:33:03.783 (loader):  gauge old value = 99
22:33:03.802 (loader): sending reboot
22:33:03.805 (loader): begin wait_until_offline
22:33:03.807 (loader): HID/macos: status: ok
22:33:04.068 (loader): HID/macos: detach callback: is currently open device
22:33:04.074 (loader): offline, waited 5
22:33:04.076 (loader): end operation, total time = 1.245 seconds
22:33:04.078 (loader): set background IMG_REBOOT_OK
22:33:04.080 (loader): redraw timer set, image 14 to show for 1200 ms
22:33:04.082 (loader): HID/macos: number of devices found = 0
22:33:04.083 (loader): HID/macos: no devices found (empty set)
22:33:05.281 (loader): redraw, image 9
after looking through the verbose I noticed

Code: Select all

22:33:02.825 (loader): can't open file '/Users/xe1ex/Documents/TU_v1.3.1.elf' (error 2: No such file or directory)
hard to tell if it's actually flashed or not. I guess I could try the teensyduino route and see if that makes a difference

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