bbq temperature and meat temperature

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megamarco83
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Posts: 230
Joined: 13 Apr 2017, 23:09

Re: bbq temperature and meat temperature

#101 Post by megamarco83 » 13 Feb 2022, 23:07

hi, it's incredible i checked many times the connections but they seams correct
i attach also the web paged of configurations, it also seams to be ok
the issue is that i see the lcd turned on but all white, but i can display nothing on it :(
Screenshot 2022-02-13 at 23-04-58 ESP_Easy.png
Screenshot 2022-02-13 at 23-04-58 ESP_Easy.png (16.82 KiB) Viewed 1983 times
Screenshot 2022-02-13 at 23-05-21 ESP_Easy.png
Screenshot 2022-02-13 at 23-05-21 ESP_Easy.png (35.11 KiB) Viewed 1983 times
Screenshot 2022-02-13 at 23-05-58 ESP_Easy.png
Screenshot 2022-02-13 at 23-05-58 ESP_Easy.png (52.17 KiB) Viewed 1983 times

Wiki
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Joined: 23 Apr 2018, 17:55
Location: Germany

Re: bbq temperature and meat temperature

#102 Post by Wiki » 14 Feb 2022, 00:53

Which binary do you use on the Wemos?

I took the one Ath attached to post #93 in this thread. But my display has a different chip (ST7735). Mine:
TFT1.JPG
TFT1.JPG (37.4 KiB) Viewed 1979 times
TFT2.JPG
TFT2.JPG (72.71 KiB) Viewed 1979 times
My display was showing like yours only a white screen, too, until I wired D7 (MOSI) of the Wemos correctly to the DIN of the TFT screen instead of D6 (MISO).

Summary of my wiring:

Wemos -> TFT
D5 -> CLK
D7 -> DIN
D2 -> CS
D1 -> D/C
D4 -> Rst
D8 -> BL

Code: Select all

pi@raspberrypi:~ $ man woman
No manual entry for woman
pi@raspberrypi:~ $

megamarco83
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Posts: 230
Joined: 13 Apr 2017, 23:09

Re: bbq temperature and meat temperature

#103 Post by megamarco83 » 14 Feb 2022, 11:37

ciao, thanks for feedback....i used the same config, but the only thing that i can do is regulate the brighness of the LCD nothing more
i can't be able to display nothing on my lcd :(
i not understand why... :(
i used the last FW that was posted here and i check ten times the connections pin

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Ath
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Location: NL

Re: bbq temperature and meat temperature

#104 Post by Ath » 14 Feb 2022, 12:05

megamarco83 wrote: 14 Feb 2022, 11:37 ciao, thanks for feedback....i used the same config, but the only thing that i can do is regulate the brighness of the LCD nothing more
i can't be able to display nothing on my lcd :(
i not understand why... :(
i used the last FW that was posted here and i check ten times the connections pin
And you are sure the hardware is ILI9341? Other ILI9xxx types are not always compatible enough to display anything with that configuration, so you could try a build that includes P116, as that also has a couple of extra ILI9xxx configurations available. Available from this thread: viewtopic.php?t=9004#p57262
/Ton (PayPal.me)

megamarco83
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Posts: 230
Joined: 13 Apr 2017, 23:09

Re: bbq temperature and meat temperature

#105 Post by megamarco83 » 14 Feb 2022, 16:47

Ath wrote: 14 Feb 2022, 12:05
And you are sure the hardware is ILI9341? Other ILI9xxx types are not always compatible enough to display anything with that configuration, so you could try a build that includes P116, as that also has a couple of extra ILI9xxx configurations available. Available from this thread: viewtopic.php?t=9004#p57262
this is the link where i bought mine:
https://it.aliexpress.com/item/32992800 ... 3696l3mSJP
it should be ILI9341
are you able to recognize it? i can also post some photos if it can help

do you think that i have to use a different plugin?

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Ath
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Location: NL

Re: bbq temperature and meat temperature

#106 Post by Ath » 14 Feb 2022, 17:22

No, it is nearly impossible to identify the chip used, as AFAIK that is integrated on the TFT, and not on the PCB you hold in your hands. The chip you see is probably the touch controller (XPT2046), for which the plugin is also included. You could try that part already, but it needs additional wiring.

Can't explain why it won't work.
/Ton (PayPal.me)

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