The outlets share both ground and hot connections completing the circuit. The power circuit connects the 120V power plug to both the low voltage power supply ( via neutral and hot ), and to the outlets through the switches on the Relay Shield (via neutral ). The interface between the power circuit and the control circuit is the job of the Relay Shield, which contains both high and low power connections. The power circuit consists of a 120V 3 prong outlet cord, fuse housing and fuse, switch, terminal block, control circuit power supply, and duplex outlets. 1x 120VAC to 12VDC 0.5A wall supply w/2.5mm center + plug.4x 40 mA green (or preferred color) LED.4x 40mA 5mm white (or preferred color) LED.Note that some links refer to multiple parts in the package so check your inventory count carefully. The links to the parts listed below are recommendations, but you can substitute as you wish. Most of the items required for the plugduino can be found at RadioShack, online, and Home Depot. The cabinet is a standard plastic and aluminum project box with contact paper applied to the front panel for aesthetics. In this project, white LEDs are used to display output status, and green LEDs are used to display input status. The indicators are separated into two groups of input and output. The I/O status indicators display which outlets have power applied to them, and which inputs are generating an input value. You could also use different connectors that might better suit your application, such as terminal posts, ribbon connector, etc. Depending on your needs, you could connect these terminals to whatever inputs ( analog and/or digital ) as you see fit. The sensor input terminals support four sets of analog inputs to the Arduino to provide for switches, potentiometers, and the like. The control board is mounted onto a section of perfboard, and fastened to the bottom of the cabinet using nut/bolt/spacers. The program running on the Arduino reads sensor input and controls the status of the relays on the Relay Shield and hence the outlets. The control circuit consists of an Arduino Uno, a SeedStudio V2.0 relay shield, and a skinned 12V power wall wart. Note that this circuit is physically isolated from the rest of the wiring. The four red wires between each outlet and the control board provide the switching circuit. With the proper use of rated terminal strips, shrink tubing, wiring, and safety procedures, you can build this project safely, but always be aware that the risk of electrical shock is present! The power circuit consists of a 3 prong power plug, fuse, terminal strip, and two dual outlets. Warning: working on 120V circuits can be dangerous and potentially lethal make sure you know what you are doing and proceed carefully! Because this project involves house wiring, follow the instructions carefully to ensure a safe build and always test and operate the device with a safety fuse. The real mojo in the plugduino comes from the combination of an Arduino microcontroller and a SeedStudio V2.0 Relay Shield the rest of the stuff is just wiring and connectors. Inside the plugduino you'll find just a few basic bits that are wired together to make the magic happen. As a simple example, you can make a sequencer for the lights with a speed control simply by connecting a potentiometer to one of the inputs and using its value to control the sequencing speed. plugduino is a smart relay controller which means that you can write a program that determines how each of the four electrical outlets are turned on or off, and in addition supply up to 4 inputs into the logic to interface it to the outside world. You can also use it for more whimsical things like sign marquees, animated Christmas light lights, super sized Simon game, and anything that takes input, runs program logic, and controls 120V devices. But you can also use in the house to control appliances based on sensors such as temperature, humidity, motion, light, and so on to open curtains, turn on lights, fans based on environmental conditions. You can use beam breaks, contact pads, distance sensors, and so on to control up to 4 devices independently or in unison to make a unique experience. what can you use a plugduino for? Well, its great for Halloween prop controller to automate your lasers, fog machines, fans and such in an intelligent way. Give your Arduino a 120 volt kick in the pants! The Arduino is a great tool for anyone interested in learning microcontroller programming, but after blinking some LEDs, what's next? This project enables your Arduino to control real-world 120 Volt electrical appliances you have in your home.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |