Let's Make Robots!

TV B Gone

Turns off TVs
TV_B_GONE.zip58.42 KB

I have a TV B Gone from Adafruit so I just made this one to see if I could. I did however want to make one that was smaller, easier to hide, and cheaper. Since the design was open source, I started with the schematic and worked my way from there. I did not really need 4 LEDs, nor did I need some of the extra parts that were on it. So after deleting some parts and routing the board, I ended up with  what I have right now. You can download the attached files and make your own or just check the schematic out.


I ordered my PCBs from dorkbotpdx. My design is about .9 square inches. So that means it cost $4.5 for 3 boards ($1.5 each)


So I placed my mouser order which totaled $4.55 without shipping. All the little parts came in their own baggie (some in even 2). A waste of plastic, but handy i like to keep them for later use.


Here is the parts list:

1 Battery holder

2 1k resistors

1 Green LED

1 6 Pin ISCP Header

2 NPN Transistors

1 PNP Transistor

1 Push Button

1 Ceramic Cap

1 Electrolytic Cap (ended up not using it)

1 8 MHz Resonator

1 8 Pin IC Socket

1 Attiny85v


1 Different IR LED


And when assembled it looks like this


I added long wires on the LEDs and kept the battery leads long becuase I still want to try and put this is some clothing or something of the sort to hide it when in use. 

There are 2 LEDs, one is a wide angle lens and the other is a narrow angle. I do not remember which is which.


It runs on 2 rechargable AAA batteries. I thought I had ordered the battery pack with the switch on it. I guess not. 


I downloaded Adafruit's program for the microcontroller and used AVR Studio and my Pololu AVR programmer to upload it to the Attiny. I have tested it and it works fine. Here is a size comparison with it and the Adafruit one I have:


Any suggestions on what to put it in ???


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how can i make it? are there any websites???


project box's are nice you can also get them in diferint size's 

Put it into a dog-collar! (if you have a dog) :)

A highly maneuverable robot of course! One that detects TVs in airports and shopping malls.

Resident Master Woodcarver, wondering what to put it in? You should be showing US what to put it in! :) I say a component box made of dark wood with a contrasting colored (like pine or redwood maybe) Kill Button or whatever you want to call it. 

This only cultures Snake Plisskin type thinking in me, BTW. Thank you :) Very clean PCB design as well, lovely.

I know, I know. I was thinking what would be a good way to conceal it. A cool case could work too, but I was thinking something not too suspicious would be good. Maybe I am just paranoid :P

How about one of those little rubber duckies?

An LED in each eye and the switch in its squeezable body. Nobody would suspect a thing QVACK!

Thanks for the link.


Your TVBgone looks cool too :)


Nice job with the design. I would love to see it in action (: lol