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Re: Detector Building C
Posted: February 18th, 2020, 4:07 pm
by jinhusong
Tekguy wrote: ↑February 18th, 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: February 18th, 2020, 4:18 pm
by MoMoney$$$;)0)
Tekguy wrote: ↑February 18th, 2020, 6:09 am
Does anyone have any good ideas for how to waterproof a thermistor? For some reason, when we cover ours with liquid electrical tape, and clear nail polish, they read very inaccurately. When we put the bare thermistor into water, with no waterproofing whatsoever, it reads perfectly accurately. We are using a TMP36.
100% use some type of covering on the detector. I suggest looking into waterproof epoxy's.
Re: Detector Building C
Posted: February 20th, 2020, 8:32 pm
by Reeeeeee
For powering the Arduino, if I don't use the laptop to power Arduino, can I use Anker Portable Power Bank (5V/2.4A) to power thru the Arduino USB port? Does the power bank consider "commercially available batteries"?
i.e. Anker Power Bank:
https://www.amazon.com/Anker-PowerCore- ... B0194WDVHI
Re: Detector Building C
Posted: February 20th, 2020, 10:16 pm
by LIPX3
Reeeeeee wrote: ↑February 20th, 2020, 8:32 pm
For powering the Arduino, if I don't use the laptop to power Arduino, can I use Anker Portable Power Bank (5V/2.4A) to power thru the Arduino USB port? Does the power bank consider "commercially available batteries"?
i.e. Anker Power Bank:
https://www.amazon.com/Anker-PowerCore- ... B0194WDVHI
I don't see any reason why it wouldn't.
Re: Detector Building C
Posted: February 21st, 2020, 12:01 am
by jinhusong
Better not. It is lithium battery. I know in laptop it is also lithium battery but laptop is OK explicitly.
Re: Detector Building C
Posted: February 21st, 2020, 6:58 am
by rabbitman
Isn't there a ban on using lithium based batteries (implemented after the first year of hovercraft)?
Re: Detector Building C
Posted: February 21st, 2020, 8:18 am
by killer225whale
Not anymore, that battery policy is gone now, so you can use batteries containing lithium.
Re: Detector Building C
Posted: February 22nd, 2020, 9:34 am
by Mr.McK
MoMoney$$$;)0) wrote: ↑February 18th, 2020, 4:18 pm
Tekguy wrote: ↑February 18th, 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: February 23rd, 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: February 23rd, 2020, 4:25 pm
by Umaroth
smallboar wrote: ↑February 23rd, 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.