Beam Robot 3

B.E.A.M –bot

The trick is to design a circuit that detects whenever the capacitor
is fully charged. There are a lot of solutions that can be found on
the Internet. A nice idea is to use the voltage drop across a flicker
LED as it depends on the amount of background light. It's 2.4V
but slightly changes in darkness. The result is a creature which is
sensitive to light, at least that's the idea.
http://www.noortje.net/electronica/beam_EN.shtml

HRB-001 Micro BEAM Bot
This time I will be making a micro BEAM robot out of some junk
and a few components. BEAM stands for Biology, Electronics,
Aesthetics, and Mechanics. What differentiates BEAM robots from
the rest is the fact that BEAM robots do not rely on microcontrollers
or any type of programming to function. Instead of preprogrammed
digital logic they function by following the simple analog logic
of their components.
http://www.hyyppamedia.com/View/Projects/23

Build The Basic Robot
This style of robot is quite popular with BEAM builders, they are generally
only used as a proof of concept type build with the parts being scavenged
for other bots after a short time.
The reason that I decided to build one is because I want a robot base that
would make sensor such as encoding wheels unusable and force myself
to find some other way of accurate mapping. Why? because if you use
encoders, it only takes somebody to nudge the robot or for a wheel to slip
for the mapping to become unstable.
http://www.societyofrobots.com/member_tutorials/node/50

Beam Robot 2

DIY Solar Robot Assembly

BEAM robotics basically starts from 3 philosophical tenets:
Use minimalist electronicsThis keeps complexity from “snowballing”,

and keeps costs downRecycle & reuse components out of technoscrap

This keeps things cheap, and avoids a lot of trips to parts stores;
virtually all the parts required to make a BEAM robot can be found
in broken electronics (ovens, walkman’s, CD players, VCRs, pagers…).

Solar power your critter if possibleWhile less powerful than even

a small battery (and, up-front, more
expensive), solar cell s last for years; solar-powered BEAMbots don’t
require constant battery replacements or down-time for battery

recharging. more

Beam Robot

analog electronics. It seemed that a PIC would work very well
for this kind of project. Very little extra circuitry is needed to
do both forword and backword walking sequences along with
a few other tricks.
http://mondo-technology.com/insect.html

Symet BEAM Robot

Symet is the first BEAM robot I ever completed, becoming active on
April 3, 2004. The idea and plans come from the book
Junkbots, Bugbots, & Bots on Wheels, by Dave Hrynkiw and
Mark W. Tilden. Its a solar powered robot that scoots along on
the tip of a single motor, using an FLED solarengine to store
and dump energy. When it hits an obstacle, it topples to
the side and, because of the orientation of the motor shaft,
it changes direction. No smarts, but lots of fun. I especially
enjoyed this guy because he was easy to get working, unlike
the other robot I tried to build first, but proved to be too
complicated for my first shot.
http://www.bufbotics.org/buf/symet/index.html

Beam Robot 3

Beam Robot 1

The Incredible Walking Machine
This robot is a solar bicore walker that does not use a "solar
engine" The circuit and motors are powered directly
from the 30 or so milliamps (in full sun) provided by a 37mm x 66mm
solar panel. On July 8, 2001 he took his first real world walks
showing the ability to walk over rough terrain including through
gravel, sand, dirt and some grass. WOW! With his feelers now
installed and his new wide traction rear legs, I am very
pleased with his overall performance.
more
Green MachineAKA "My B.I.O.-BUG Hack"

The Plan: Rip the Hasbro toy bug guts out of a B.I.O.-Bug and turn
him into a true green BEAM machine. I want him to be solar
powered and able to walk continuously when in direct sun.
The circuits should be analog, BEAM, and as simple as possible
while still allowing robust enough behavior to give him
a chance for autonomous survival.

more
SunEater V

The SunEater_V behaviour is based on three rules:
-If no feeler switches are closed, the motors will obey the `eyes'.
SunEater_V moves towards the best light, while trying to avoid
shadow patches.
- If one of the feelers touches an obstacle, SunEater_V "follows
the wall" in the direction of the better light. Both this and the first
behaviour are illustrated here. Thanks to the `mechanical memory'
- the robot keeps a feeler in contact with an obstacle during evasive
action - the motion remains deliberate, even if the voltage drops to
zero between steps.
- With both feeler switches closed, the robot will push
against one of them, trying to get free.http://www.xs4all.nl/~sbolt/Other/suneaterV.html

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Beam Robot 2

Beam Robot and Beam Robot Book