Somimoro

noise0 · March 3, 2009, 4:17pm

it's the ultimate solar rover

based on Picaxe 18X

it soaks only 25 uA in idle mode

it have a brain

it's i/o modular through 2.5mm strips

it's efficient

it's small (L:66m W:37mm)

the nemesis of beam robots

asd

the actual schematic

navigate

Actuators / output devices: two motors + modular
Control method: autonomous
CPU: picaxe 18x
Power source: Solarbotic SCC3766 solar-cell
Sensors / input devices: modular

This is a companion discussion topic for the original entry at https://community.robotshop.com/robots/show/somimoro

noise0 · March 3, 2009, 5:09pm

i need some advice about the

i need some advice about the drive train

now i have put those two motors and the big belly capacitor

noise0 · March 3, 2009, 5:44pm

thank you for the

thank you for the advice

about the cap now it’s a bulk 6800 uF

and it provide enaught energy to drive both motors for 50 mS @ 3v

it’s enought ini order to move

bigger cap means longer motion period but longer idle time

anyway cap size have to be reduced

i was thinking about thread bealt

but i fear too mugh friction

icon · March 3, 2009, 11:42pm

what oddbot said, usually in
what oddbot said, usually in solar robotics/and or beam supercaps are used instead or regular caps because they store a lot more low volage eneregy than normal caps, unless your using like 100 panels lol

noise0 · March 4, 2009, 6:39pm

yep that cap would be great

yep that cap would be great for this bot , 5,5v is ok

i have done some tests and it seems motor have enought torque to drive thread bealts…

now i am trying to handcraft a decent drivetrain

calculon320 · March 5, 2009, 12:54pm

Schematic

This bot is awesome awesome awesome! You MUST post a schematic of the circuit for us.

[EDIT] Just saw that you did.

noise0 · March 5, 2009, 3:07pm

i have uploaded last

i have uploaded last schematic

noise0 · March 5, 2009, 3:19pm

1. 2. I have no

1. 2. I have no experience with picaxe output current capability, those gearmotors are rated to soak 180mA stalled. I do not know how can respond picaxe output at his level of current demand. Anyway in this aplication the size is not so critical. I will try to use your advice for the next robot: the 1 inch cubic bot

3. please be patient, my english is crap and i can not understand what you mean

4. agree, many backup caps do not provide enought current to drive motors. Now I am trying to fit a 6,3v electolitic cap . In the pic the cap is a 16v

noise0 · March 18, 2009, 6:00pm

that’s it the Somimoro with

that’s it

the Somimoro with bigfoot drivetrain

it’s 40% less eficiet opposed to original lo-frictionsetup

anyway it’ acceptable and with this setup it can seriously rover the envirenment…or not?

TODO

develop more I/O modules (feelers, lights, buzzers, ir,…)

glue a piece of pvc to fix drivetrain mechanical stability

rik · March 18, 2009, 6:04pm

funny

That is so funny, how it’s starting to move and stops again immediately. But with a bit of patience it still gets there!

noise0 · March 18, 2009, 6:21pm

yeah tis is a test made with

yeah tis is a test made with 100W light bulb

under direct sunlight i expect great activity

robotoverlord · March 18, 2009, 9:37pm

hey! can you tell me where
hey! can you tell me where did you get that solar cell?

noise0 · March 19, 2009, 4:25am

it’s a Solarbotic SCC3766

it’s a Solarbotic SCC3766 solar-cell

rated 6.7V @ 30mA

bought here in italy from a Solarbotic distributor