I’ve just shared my project: “Camera Dew Controller”
My passion hobby is night-time time-lapse photography and astrophotography/nightscapes. This means a lot of time spent outside in the dead of winter overnight and an issue that I faced was dew condensing on the lens.
This is solved by using a heated dew strap that plugs into 12 V or USB and keeps the lens warm. This works but is a big battery drain, so I designed and built an Arduino-based system to only activate the dew strap when it was in a dew condition.
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Good to see this one published Andrew! Shmick PCBs and those BME modules fit perfectly!
It’s super interesting to see other hobbies combined, especially photography!
Love your work😁
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Thanks Liam. This one was a study in fitting as much into a small box as possible 
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Wow!!! You literally just solved an issue most night time photographers face.
Is it possible to use NodeMCU instead of Arduino Nano? I really want to try my hands out on this project but I need a cheaper board option.
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Im sure it could be adapted for any flavour of board, but Im just using the $5 knock off Nano’s 
Hi Andrew, came across this design of yours for a camera dew controller, is it still possible to get a pcb board for this and how.
Phil
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Hi Phil,
I still have a number of these PCBs, I could send you one if you want to build the controller.
I also have been wokring on a PICO version with much much much smaller design, that uses a pressure sensor too.
Depends on what you want to do with it really, but let me know.
andrew@brocklesby.net
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