DIY Touch Screen Trimix Analyser

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stevetto

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I have been working on a touch screen trimix analyser.
I made a custom pcb.
20210209_182748.jpg
 

stepfen

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Very nice - it looks so much neater with the custom PCB compared to wires.

I have 2 questions:
1. Any ideas about how to neatly direct the gas to the sensors? Do you use some kind of pipes or ??
2. How do you provide the 3V required by the helium sensor on top of the 3.3 or 5V required by the Lolin board?

Cheers
 

Miyaru

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Nice! I didn't look into ESP yet - the use of a touchscreen requires a lot of memory, which is a real issue using an Arduino.
Curious to see some screenshots. I have one of those touch screen display's but I think they're quite dim, colors are not bright and it's difficult to read the screen outside in sunlight.
Very nice - it looks so much neater with the custom PCB compared to wires.

I have 2 questions:
1. Any ideas about how to neatly direct the gas to the sensors? Do you use some kind of pipes or ??
2. How do you provide the 3V required by the helium sensor on top of the 3.3 or 5V required by the Lolin board?

Cheers
2: you can see the buck converter on the main PCB - it's the component that outputs 3.0 volts.
 
https://www.shearwater.com/products/perdix-ai/

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