Picture of Blinky the LED pet
Please meet Blinky. Blinky is a led-based life form. His driving force is his need to connect with humans. When connected, his big blue led-eyes light up cheerfully.

But there's one issue always on Blinky's little, five-component brain: He is alone, and would love to get in touch with other led-based creatures. Here's a video:

Blinky  asked me to set up this instructable, so that other people can make him a friend.

Making Blinky a friend won't cost you much:
- a couple of hours of your time and patience
- approximately €12 / $16
(but you might find everything you need in your basement)
- Some everyday tools

In the five steps described, you'll find everything you need to know to create a friend for Blinky. He can't wait to meet the results of your efforts...

Update Feb 2011: I made Blinky a friend. He's called Monster 555.
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Step 1: Tools and materials

Picture of Tools and materials
Also take a look at the photo's and the comments. I tried to make the pictures as self-explanatory as I could...

Materials used for building Blinky's body and legs:
- A lot of electric wire connectors: 60 stubs or so (€3 / $3,60)
- A couple of meters of solid kern electrical wire (€2 / $2,50)
- Tie-raps
- A piece (30 x 30 cm) of furry fabric
- Double sided foam tape
- 9 Volt battery block

For Blinky's head:
- a 9 x 5 cm plugin board for electric components (aka breadboard).
- Two transistors BC547 B
- 1 resistor 100 kOhm
- Solid kern jumperwire to connect the components on the plugin board
(I bought an electronics "experimenting package" for €10 / $12 which contained everything I needed at Conrad.)
- Two 10mm blue LED's
- More solid wire connectors.
- Double sided foam tape

Tools you need:
- Pliers to cut and bend the electrical wire
- a stripper
- Small screwdriver
- sharp knive
- scissors
- multimeter
- powerdrill (for twisting wires: see this smart instructable)

love it! can you make a pray mantis next?

love it! can you make a pray mantis next?

lwelton87 months ago

So, I really want to make this but I'm not very skilled. It's very complicated for me for I've never made a robot in my life! I am going to do this once I start making easier robots. I'll make sure to tell my friends about this!!!

ynze (author)  lwelton87 months ago

Hey lwelton8! Thanks for your comment. Starting something is never easy, but Blinky is really a good project to start with. The electronics may look a bit difficult, but it's really not. A starter kit like this one ( has all the parts you need. Just get started :-). Drop me a line if you run into problems while building. Cheers,


Nicapizza2 years ago
This is great!! Exept, it kinda disturbs
ynze (author)  Nicapizza2 years ago
Thanks :-) blinky has been for around in my house for over two years now, and he (she??) is as adorable as ever. Her favorite spot is the windowsill, watching kids passing by on the sidewalk...
tillo4 years ago
great, my dog thought he had a weird name, what was it? Blinky! hes not alone anymore, I bet he'll never notice this Blinky is not from flesh and bones
roflbot4 years ago
that is the single most epic thing ice ever seen
ynze (author)  roflbot4 years ago
:-D Thnx!
oh! thank you very much for this led pet... i love blinky.....
Sanderhek4 years ago
Kom op Blinky!
nicework4 years ago
Blinky likes company! Good one
Zion_Sphere4 years ago
so cute good one
Hoi Ynze,
Blinky moet winnen!
Littlepatty4 years ago
Like this doggy!
A fan4 years ago
I think Blinky's cool!
lieve4 years ago
I just love Blinky! Make us some more!
ynze (author)  lieve4 years ago
Nah, you make some more :-P. And then make an Instructable of it.
ynze (author) 4 years ago
Blinky can't wait to meet his soon-to-be friends! Please post some pics when you got something :)
pritty cool
web784 years ago
Great dog! I like it and I'll do same!

Look some interesting here