What would happen if your projector went dark in the middle of a presentation? Would a training session end prematurely, making your team have to come back at a later time? Would a client interaction ...

Hydroponics and Aeroponics are great alternatives to traditional gardening for those who want to grow indoors, but it can be tricky to give your plants the right balance of nutrients and water.

The purpose of this circuit is to power a lamp or other appliance for a given time (30 minutes in this case), and then to turn it off. The purpose of this circuit is to power a lamp or other appliance ...

[GrowColt] shows you how to modify a lamp timer for use with hydroponics. You can pick up this type of mechanical timer at most local big box stores for around $5. The timer plugs into an outlet, and ...

[Steven Mackaay] added a simple user interface that implements a shutoff timer for his desk lamp. His project log comes in two parts, the breadboarding and the actual implementation. He wanted a few ...