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Author Topic: RF temperature sensor with LCD schematic  (Read 804 times)

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Offline sdancer75Topic starter

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RF temperature sensor with LCD schematic
« on: May 30, 2019, 09:50:09 am »
Is there any way to find a similar schematic of an RF temp sensor with an LCD display without any microcontroller involved?

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Offline ebclr

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Re: RF temperature sensor with LCD schematic
« Reply #1 on: May 30, 2019, 01:15:34 pm »
Did you check without the display, The mp probably is under
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Offline ogden

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Re: RF temperature sensor with LCD schematic
« Reply #2 on: May 30, 2019, 01:23:33 pm »
Quote from: ebclr on May 30, 2019, 01:15:34 pm
Did you check without the display, The mp probably is under

Right. Black epoxy blob of chip-on-board seems to be visible in the photo, below LCD.

https://en.wikipedia.org/wiki/Chip_on_board
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Offline sdancer75Topic starter

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Re: RF temperature sensor with LCD schematic
« Reply #3 on: May 30, 2019, 03:48:23 pm »
Yessss... as far as I can see from the photos now, there is a  black epoxy blob of chip-on-board under the display.

I suppose it would be much more complex to avoid a microcontroller for such kind of projects.
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