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Hi Mark, it is great to hear you you are trying out our design. Yes I can send you the board. Please send me your address that I can ship. Looking forward. Thanks.
Hey sorry for the loooong delay in replying.140F is definetly doable. With this 75W bulb I tested up to 70C (160F) without melting the styrofoam.
Hey Billy,It might effect photosensitive cultures. We have never worked with fungi.
Hi, the one I used is not listed in DigiKey anymore. But you could find one from Amazon.
Hi Jon, thanks for trying out my Instructable. It seems your circuit is ok. What version of Arduino you are using? I think we might need to tweak the Arduino code a bit if you are not using an UNO or Nano. And are you within the US? If not please let me know the frequency of your mains power too.