3 Simple Ways to
Share What You Make

With Instructables you can share what you make with the world — and tap into an ever-growing community of creative experts.

PhotosPhotos

Share one or more photos of a project, recipe, or whatever you've made, quickly and easily.

Step by StepStep-By-Step

Share your step-by-step photos with text instructions of what you made so others can do it too!

VideoVideo

Share your how-to video. You'll need your embed code from a video site such as YouTube.

Make an automatic plant light

Step 4Software

You should already know, how to upload a program. I've uploaded the .c and .hex files.

In the source, the 14400 (in seconds = 4 hours) tells after how many seconds it automatically turns off. You can change this number if you want.
greenhouse.c795 bytes
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Author:DemonDomen