Wolfgang,
Thats a good trick with the pasta wrapping. I drilled my perspex and superglued the MLX90616 to the hole, this lasted about 2 years then water got in.
More recently I tried to close around the hole with clear nail polish. I was using the TSL under the perspex without a lens.
I am disappointed about water leaks which have ruined my weather station and I am thinking about my next build.
Regarding the light sensor for the SQM function, is a lens necessary? do you think the lens or the perspex would absorb radiation that the light sensor
needs as the acrylic dome might be a problem.
Do you use one arduino for the MLX and TSL and another arduino for your other sensors - wind, BME280, RG-11 and display panel?
Are you powering the MLX and TSL box with a rechargable battery?
Hi Mark, thanks for your posts.
The box and heater seems to be like the one from allskyoptics -
www.allskyoptics.com/
I am working on my skycam at present and have opted for the PVC pipe approach after Thomas Jacquin -
github.com/thomasjacquin
First light outside was runed by condensation and then frost on the dome
I thought about a method for heating the dome and tried an astrozap dewstrip
Other options would be an internal heater like
- allskyoptics resistors ring shown above -
www.dewcontrol.com/Dew_Heater_Module_All...099125_19045496.aspx
- As per Gunter's suggestion, chain of six 25 Ohm resistors at 12 V -
skyandtelescope.org/astronomy-equipment/diy-dew-heater/
- NiChrome wire, as is found in the dew strips, not sure if I could steal some from an old toaster!
I just twiddled the knob on the astrozap dew controller, but fancier methods of control are possible;
-
www.instructables.com/Raspberry-Pi-Dew-H...-for-All-sky-Camera/
- A very nice pst on stargazers lounge
stargazerslounge.com/topic/362725-raspbe...ll-sky-camera-build/
Keep up the great work, at least my skycam has not leaked, yet!