Let's Make Robots!


Turns when exposed to any light. It can turn left or right
This is my robot Robo. I built him a while back for my daughter to enter in a recent robot gathering in town. He really moves in an interesting fashion. I had that … Read more
Autonomously navigate and sweep patio
UPDATE: BLOG AND ADDED NANOMUSCLE VID. A spinoff from my solar powered Crumbot dream. I have a patio that gets showered with small seed pods that invariably get … Read more
Vibrate around phototropically with tactile feelers
UPDATE: ADDED VID WITH NEW EYES AND SOME THOUGHTS AT THE BOTTOM. One of my lower priority robots but thought I'd post it up for scrutiny anyhow. My plan is to use … Read more
Navigates via 3 Sharp IR detectors
Using a
This robot uses Mark Tildens H-Bridge design for motor drivers. The brains of the robot is a HEX inverter that until the Sharp IR detects an object the motors go … Read more

My first robot..........

So I've decided to build my first robot which not the LMR "start here" one (that one is going to be my second one) and im using this circuit- http://costaricabeam.solarbotics.net/Circuits/Vores/555%20Photovore.png . I've tried about 10 different designs for the body but its just not working. When i cover the left photocell with my hand and the other one is exposed to light the speed of the motors is the same and same with the right photocell. has anyone tried the circuit? did it work?

my first freeform micro core.it is a beam bot.i refer chu's body design.     i am going to add mcu based ir senser,maybe rc system futher. the video show some … Read more
Using a
This is my second functioning robot. All the parts are recycled, so it didn't cost me more than a bit of time. The schematics can be found all over the internet, … Read more
A mechanism with a one-track mind.
This is something I built a while ago.  I won't call it a robot as it's very limited in its function - It only knows about FORWARD!  It was just an idea which I … Read more

BEAM tactile sensor

I'm really attracted by these antennae-shaped tactile sensors: http://letsmakerobots.com/node/7542

The problem is that I cannot figure out how to use 'em! I mean, how the contact between those sensors and an obstacle would cause an I/O pin to toggle?

 Thank you in advance for the hints you would give me.

Seeks light a little jump at a time
Using a
File this one under "stuff everyone else has done so I guess I better do it too"  I've been wanting to put together a BEAM photopopper for awhile -- I pulled most … Read more
Stays "alive" by navigating towards bright light sources
Updated 28/10/2009 Added a video of the bot in motion. Description This is my first vibrobot. I've wanted to create a phototropic BEAM vibrobot for a long time … Read more

The Pulse - 2009w21

LMR on the Brain
Sensing the living LMR community since 2008w43.

Famous last words

Some of the most promising of LMR projects withered into oblivion with these memorable closing statements. A short selection from the LMR video archives:

This PowerSmart head circuit was solarized, courtesy of Darrell Johnson, and dubbed the Solar Power Smart Head (SPSH). The SPSH circuit has been tweaked from time … Read more
Use two motors with separate solar engines; rely on differential sensors to achieve a goal. Poppers are essentially just pairs of solar engines mounted together … Read more
Go forward and turn because of allignment :)
Using a
Well I am waiting for my version A.5 picaxe and got an idea for this little guy. He is not fully done yet but getting there. Stevie is a BEAM bot/Solar Roller. As … Read more