Introduction: Turn Off Light From Bed

Well my mom likes to wake me up for school in the morning my turning on my light, and I got tired of being blinded first thing in the morning and having to walk across the room just to turn off the light, so I decided to make a quick way of turning off the light from my bed. This is a fairly easy instructable (i think), i also thought it was quite fun to do. Note: this only works with the flip-style light switch.

Step 1: Materials

Parts:

old light switch cover

dc motor

project box (i used an altoids tin)

2 momentary push button switches

lots of wire

2 AAA battery packs (I used 1 AA and 1 AAA)

heatshrink tubing

hot glue sticks

a screw


Tools:

drill (not shown)

soldering iron

wire cutters/ wire strippers (not shown)

hot glue gun

Step 2: The Case

I drilled a hole in the side for the wires going to the motor to go out, then I drilled 2 holes in the top for the wires to the buttons.

Step 3: Build the Circuit

Follow the schematic below to build the circuit. But: DO NOT ATTATCH TO MOTOR YET! just twist the 2 ends together for now. Make sure to thread the wires out of the holes for the buttons before soldering. I hot glued the 2 battery packs to the bottom of the case and hot glued the 2 buttons on top to hold them in place. 
 

Step 4: The Motor

For this step, I held the motor against the light switch to figure out where to position it and marked with a pencil. now take off the faceplate for the lightswitch. I drilled a hole for the screw to come up to help hold the motor on the plate, then I hot glued the motor onto the faceplate. you may have to loosen or tighten the screw to get the motor to turn off the light efficiently.

Step 5: Final Touches

now solder a wire to each of the ones you twisted in step 3. (there should only be 2, both have a positive and negative twisted together) then thread the 2 wires out of the hole in the side of the case (put a knot on the inside to prevent the cable from pulling out). now solder the other ends of the wires to the points on the motor. now just screw the faceplate back on the wall. finally figure out which button turns on the light and which one turns off the light (I made a label). and test it out to make sure it works.

Step 6: All Done!

below is a video of me using my switch. please comment and rate. I hope you enjoyed this Instructable. thanks for viewing :)

Comments

author
ElectricalE1 (author)2015-10-27

You can also induce a short circuit to switch off all lights - you just need a plug socket...

youtu.be/A4ci7fRyh1Y

author
chipper35 (author)2011-07-04

Great work here!!

author
musick_08 (author)chipper352011-07-05

Thanks! I'm glad you like it!

author
tim13211 (author)2010-01-22

where'd you get the motor?

author
musick_08 (author)tim132112010-01-22

out of an old rc car

author
2 stroke (author)musick_082010-11-22

100x better than mine mine is just mechaical

author
Wimzy (author)musick_082010-01-26

Sounds like you could maybe use the wireless guts of the car to make this wireless too.

author
musick_08 (author)Wimzy2010-01-26

i was going to try and do that but the circuit was fryed somehow and about the only thing i could use was the motors, but if i can find another rc car and some other parts im going to make a second version of this

author
tim13211 (author)musick_082010-01-23

ohh this is a sick idea though

author
musick_08 (author)tim132112010-01-24

thanks :)  and you could probably go to an hobby shop and get a servo instead of that motor btw.

author

You could do this with a servo, but please note that it would require modifying the servo or building some more advanced circuitry.

The servo modding would basically be ripping out all the internal electronics and only using the motor and gearbox. The motor  should be good to run from 4.5-9 volts, but remember that  the output shaft cannot turn 360 degrees and that stalling is bad.

The more advanced circuitry isn't really very difficult, just more advanced than switches. You need to send signals to the servo which could easily be done with 555 timers. Remember to use 4.8-6 volts.


That same hobby shop has some multispeed Tamiya gearboxes.....

author
Stoopie (author)2010-01-25

Is it wireless?

author
musick_08 (author)Stoopie2010-01-25

no, 2 wires go from the motor to the case.

author
Stoopie (author)musick_082010-01-25

Aw, it'd be perfect if it was.

author
musick_08 (author)Stoopie2010-01-25

i was thinking that too, but i couldn't figure out how to do it, so this was the best i could do

author
electriczap4 (author)2010-01-22

Hmm... good. If you could only rig a DPDT switch and a few diodes...

author
musick_08 (author)electriczap42010-01-22

whats a DPDT switch?

author
tyeo098 (author)musick_082010-01-22

A switch with 2 poles, so you wouldnt need 2 battery packs.

author
musick_08 (author)tyeo0982010-01-22

oh ok, i didn't know thats what they were called. actually i didn't even think about that. thanks for the idea (:

author
electriczap4 (author)musick_082010-01-23

Ya, the schematic would look like the picture I posted.

Also, your design shorts itself out... to increase battery life and  safety, I've added a few diodes to my schematic.

If your not familiar with diodes, they act as 1 way gates. They are polarized, meaning you have to put them in a special way. So, follow the polarity when wiring.

PS. That's not a motor, that's a servo. Same thing, but servos use gears for more torque, which you need in this situation.



Screen shot 2010-01-23 at 9.33.55 AM.png
author

A motor and a servo are not the same thing. A motor with gearbox and a servo are not the same thing. This instructable uses a motor with a gearbox, not a servo.

Your diagram is completely wrong. The motor  would turn if you moved the switch up, the motor would do nothing if you moved it down. The diode does nothing.

You could wire the motor like this with a DPDT (double pull double throw) switch: http://www.eleinmec.com/figures/012_01.gif

author
musick_08 (author)electriczap42010-01-24

ok thanks, im kinda new to building circuits like this so i didn't think of that. if i can i'll try to rebuild it soon.

author
electriczap4 (author)musick_082010-01-24

Nvm, now that I think of it mine wouldn't work...

I'll get back to you soon with a better idea...

author
musick_08 (author)electriczap42010-01-24

ok

author
ikssk (author)2010-01-22

This brings back memories, I did the same thing 20 years ago, Good job.

author
musick_08 (author)ikssk2010-01-22

thats awesome, thanks (:

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