Based on my experience with naval equipment, real watertightness has a
high price.
As alternative, the more ventilation, the better:
just try to prevent that drops, dust and insects may enter the box.
The protecting box when able to 'breath' probably can get rid of
condensation.
That said, you should accept (trading off price against protection) that
most lower priced electronics have insufficient protection against moist
and as consequence will have a 'limited' lifetime.
Therefore plan ahead a replacement or repair max. every 3 years.
Op 9-11-2022 om 15:17 schreef William Garber:
this is a continuation of
https://forum.arduino.cc/t/will-adafruit-itsy-bitsy-atsamd51-overheat-in-enclosure-at-110f/1045678
<https://forum.arduino.cc/t/will-adafruit-itsy-bitsy-atsamd51-overheat-in-enclhttps://forum.arduino.cc/t/will-adafruit-itsy-bitsy-atsamd51-overheat-in-enclosure-at-110f/1045678osure-at-110f/1045678>
On Wednesday, November 9, 2022 at 3:59:32 AM UTC-8 [email protected] wrote:
I agree with Timothy.
After a career in oceanography and 20+ years of sailing, I've
concluded there is no such thing as waterproof. Just varying
degrees of water resistance.
Condensation happens when warm, moist air meets a colder surface
and gets chilled to the dewpoint. Ventilation ensures that
everything is at the same temperature. I don't know how much heat
the M4 puts out, but it's probably enough to keep the surfaces
warm relative to the incoming air.
On Tue, Nov 8, 2022 at 6:06 PM Timothy L <[email protected]>
wrote:
In my humble opinion having built a couple boxes for wireless
bridges to shield the radios from rain, the more venting the
better. As much as possible to cool the equipment and in your
case avoid condensation. I glued styrofoam board to the metal
roof to reduce heat from the sun while leaving bottoms open
with wire screening to prevent bugs and let moisture out. I
also put 2 inch holes near the top with screening to let heat
rise out of the holes while fresh air comes in. I wouldn't put
a temperature sensor inside the box due to the fact that you
are readings will not be actual outside temperatures but box
temperatures.
On Tuesday, November 8, 2022, William Garber
<[email protected]> wrote:
> it has weewx drivers
>
> On Sunday, November 6, 2022 at 12:24:57 PM UTC-8 William
Garber wrote:
>>
>> I created a home made arduino weather station and the
software is running okay; the temperature gets up to 110 F on
the hottest day on record and it is usually dry except for the
rainy season when it can pour mercilessly; the system is made
of four enclosures which are currently waterproof and are
shaded from the sun; I am waiting for a hot day to find out if
they will overheat; If I introduce a tiny covered vent I am
afraid that will let in condensation which will freeze on a
frosty day and damage things;
>> any input please? Should I leave it waterproof or add the
vent?
>> The dev board is an adafruit itsy bitsy M4 (ATSAMD51G)
>
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