7/30/2023 0 Comments Arduino relay power stripNext, attach all of the relay wires to the receptacles.First, attach the control wires to the phone jack in glue or screw into place.Solder on wires to connect to receptacles to other pin on relay.Solder hammered 8AWG wire for 120v Power.Solder wire for 5v Power and bridge for power to relay.Cut a strip of PCB for relays, (see pictures).Attach neutral to a piece of hammered 8AWG wire with hole terminal connectors.Attach ground to a piece of hammered 8AWG wire with hole terminal connectors.Attach hole terminals to those same wires.Attach terminals to 6" lengths of 14AWG wire and insert into neutral and ground on receptacles.Insert receptacles and attach power cable.Cut out holes in box for receptacles, control wire and power cable.Dremel tool with cutting blades to replace the saw.Tools that will make life 100 times easier A soldering iron and solder (Fine tip is much better).14AWG Wire (This is a great item to salvage from something.).A 3 prong plug and however long of cord you want.x1 - Enclosure cable stay - (A way to hold the power cord in the enclosure, see pictures for more detail.).x1 - 12" piece of bare 8AWG Copper wire (60 cents at Home Depot).x4 - 6" pieces of 22AWG Wire (4 different colors to make life easier).x1 - High Quality PCB for mounting relays, relay driver and I2C breakout.x1 - Internal wall phone jack terminal and phone line long enough to reach where ever you want the Arduino to be located.x17 - Ring Terminals for 14AWG Wire and bolts and nuts to go through them- Something like.x21 - Male 16-14AWG Male wire terminal tab ends - Something similar to.x7 - NEMA 5-15R 15AMP 125v 2-Pole 3-Wire Grounded Receptacles.Including shipping: $16 from Sparkfun - $31.00 from Digikey - Other parts ~$13 Although you can get any of these you desire, I will show you how to build this with specific parts. That is a I2C breakout out board and a relay driver. There are only 2 other components needed for this build besides the box, wire and receptacles. They have a switching current draw of 72mA. This power strip uses 15AMP 120v AC relays that are switchable with 5v DC power. The total cost of the power strip for 7 plugs is about $60 depending on how resourceful you are. This should be an easy to follow guide if you want to build a cheap power strip that can be easily controlled with a $13.00 Arduino and a 9v 750mA wall wart. BE SMART AND AGAIN, IF YOU ARE UNSURE ABOUT ANY OF YOUR ACTIONS, YOU SHOULD STOP WHAT YOU ARE DOING AND CONSULT AN ELECTRICIAN. ALSO BE AWARE THAT 120v AC POWER CAN START AN ELECTRICAL FIRE AND COULD RESULT IN A HOME OR BUILDING BEING BURNED DOWN. 120v AC CAN KILL YOU!!! PLEASE TAKE PRECAUTIONS AND IF YOU ARE UNSURE ABOUT SOMETHING DON'T DO IT! NO ONE ON INCLUDING MYSELF ARE LIABLE FOR WHATEVER ACTIONS YOU TAKE. THIS GUIDE USES 15AMP 120v AC POWER AND THERE IS A HIGH RISK OF ELECTRIC SHOCK.
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