Beginning gardening, plus tech! The Edyn garden sensor

I'm an aspiring gardener. Not a very experienced one, nor one with a lot of resources (like a yard of any kind)... but, I do what I can! This summer our little porch garden contains 6 tomato plants, several varieties of herbs, and a ton of onions. We've done peppers, lettuce, and even cucumbers in the past, but this year we stuck to a smaller selection and just got more of them. So when I got a