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Re: Detector Building C
Posted: Tue Feb 18, 2020 4:07 pm
by jinhusong
Tekguy wrote: ↑Tue Feb 18, 2020 6:09 am
Does anyone have any good ideas for how to waterproof a thermistor? For some reason, when we cover ours with liquid electrical tape, and clear nail polish, they read very inaccurately. When we put the bare thermistor into water, with no waterproofing whatsoever, it reads perfectly accurately. We are using a TMP36.
Find right sized heat shrink, cut 16 cm long. Let the end of the heat shrink tube be the center line of the TMP36. Shrink it, so that half of the sensor is exposed to water and the other half with wires is inside the tube.
Re: Detector Building C
Posted: Tue Feb 18, 2020 4:18 pm
by MoMoney$$$;)0)
Tekguy wrote: ↑Tue Feb 18, 2020 6:09 am
Does anyone have any good ideas for how to waterproof a thermistor? For some reason, when we cover ours with liquid electrical tape, and clear nail polish, they read very inaccurately. When we put the bare thermistor into water, with no waterproofing whatsoever, it reads perfectly accurately. We are using a TMP36.
100% use some type of covering on the detector. I suggest looking into waterproof epoxy's.
Re: Detector Building C
Posted: Thu Feb 20, 2020 8:32 pm
by Reeeeeee
For powering the Arduino, if I don't use the laptop to power Arduino, can I use Anker Portable Power Bank (5V/2.4A) to power thru the Arduino USB port? Does the power bank consider "commercially available batteries"?
i.e. Anker Power Bank:
https://www.amazon.com/Anker-PowerCore- ... B0194WDVHI
Re: Detector Building C
Posted: Thu Feb 20, 2020 10:16 pm
by LIPX3
Reeeeeee wrote: ↑Thu Feb 20, 2020 8:32 pm
For powering the Arduino, if I don't use the laptop to power Arduino, can I use Anker Portable Power Bank (5V/2.4A) to power thru the Arduino USB port? Does the power bank consider "commercially available batteries"?
i.e. Anker Power Bank:
https://www.amazon.com/Anker-PowerCore- ... B0194WDVHI
I don't see any reason why it wouldn't.
Re: Detector Building C
Posted: Fri Feb 21, 2020 12:01 am
by jinhusong
Better not. It is lithium battery. I know in laptop it is also lithium battery but laptop is OK explicitly.
Re: Detector Building C
Posted: Fri Feb 21, 2020 6:58 am
by rabbitman
Isn't there a ban on using lithium based batteries (implemented after the first year of hovercraft)?
Re: Detector Building C
Posted: Fri Feb 21, 2020 8:18 am
by killer225whale
Not anymore, that battery policy is gone now, so you can use batteries containing lithium.
Re: Detector Building C
Posted: Sat Feb 22, 2020 9:34 am
by Mr.McK
MoMoney$$$;)0) wrote: ↑Tue Feb 18, 2020 4:18 pm
Tekguy wrote: ↑Tue Feb 18, 2020 6:09 am
Does anyone have any good ideas for how to waterproof a thermistor? For some reason, when we cover ours with liquid electrical tape, and clear nail polish, they read very inaccurately. When we put the bare thermistor into water, with no waterproofing whatsoever, it reads perfectly accurately. We are using a TMP36.
100% use some type of covering on the detector. I suggest looking into waterproof epoxy's.
Google: "liquid electrical tape"
Re: Detector Building C
Posted: Sun Feb 23, 2020 3:26 pm
by smallboar
I'm new to this event, what microprocessor is easier to learn/use, Ti or arduino?
Re: Detector Building C
Posted: Sun Feb 23, 2020 4:25 pm
by Umaroth
smallboar wrote: ↑Sun Feb 23, 2020 3:26 pm
I'm new to this event, what microprocessor is easier to learn/use, Ti or arduino?
Do yourself a favor and use arduino, it's more practical and useful for the future. The only reason TI is suggested is because they're the sponsors.