Let's Make Robots!

LM3914 Led mouth.

Hello everyone,

Here's a video of my led mouth I made for my "blue Freak Machine".

This is the circuit I made for it:

 

In my case the leds are numbered as follow:

8 6 4 2 0 0 2 4 6 8

9 7 5 3 1 1 3 5 7 9

 

Edit: Oops i mixed up the 3914 and the 3915.. they both will work anyways..

Edit2: Embedded youtube vid not showing up for some reason.

 

I've tried some photoshop to my primary image, as an experiment. Just made a picture of the progress..  I had the strange feeling being watched.. weird..   From … Read more

L9110S logic level question.

Hi all,

For my robot I like to run my l9110s motor driver that I got from eBay and 2 dc-motors directly from a 7.2 volt battery. This should work together with an arduino nano. 

 However.. will this motor driver accept the 5v signals that come from the arduino? Or will I need a voltage level shifter?

 

Any advice welcome :-)

 

smart way of turning around

I've seen these 1 motor walkers before, with the big disavavantage that they can only walk straight forward.  Look how smart this is solved on this robot by adding an extra wheel :)

Homemade Remote Controlled Walking Robot: http://youtu.be/zrbTm6BFO_U

 

Solenoid as a speaker??

Today it is very hot here .. too hot to make robots or what else to do. so I was just brainstorming about my drum robot .. :)

Hi LMR people, This is the beginning of my 2nd drum robot. I've build my tamiya tracked base for him. This version of frits's famous YDM will be using solenoids … Read more

Robot Quadrotors Perform James Bond Theme

Imagine that Fritsl combines his yellow drum machine with his quadcopter.. would be amazing to see. Frits, eat your heart out!!

Last weekend we had a nice weather, and I made a Light in the garden, and decided to make a photo of it with my robot next to … Read more

Quadcopter Flight Assembled Architecture

Just a cool vid I found..