Let's Make Robots!

Messing with the Picaxe editor help menu

When researching the exact connections on my 28x1 projectboard, I scowered my directory C:\Program Files\Programming Editor\datasheets\ and found user.txt.

And guess what? It lets you change the help menu in your editor.

picaxe_userhelp_rtfm.gif

That fourth option was not there before! All that was needed was one extra line in the textfile:
PCB hackers need to Read this F*****g Manual now!=c:\Program Files\Programming Editor\datasheets\axe001_pcb.pdf

TJ snow angels and pulley kebab

tj_banner2.jpg

Today I decided on the arrangement of my Theo Jansen legs on the side of my future robot. I place one prototype on a piece of cardboard and traced the outlines with the legs in all possible positions. Like a robotic snow angel. This way I know what the "footprint" of the entire mechanism against the side of my robot will look like. And if one leg will hit a neighbour when flailing about.

tj_snowangels.jpg

Howto browse LMR! (A guide to oldies)

Well folks,

A dear LMR friend recently drew my attention to his ignorance regarding the way this site works for him. This person, who shall remain anonymous, has been a member, like, for ever (in fact only 23 members joined before him). So I assumed he would know by now how threading works. And how to keep track of the latest updates.

Chemical vise

I have no machine vise, but my project called for one. These pulleys come with a pilot hole. This way you can decide for yourself what kind and size of hole you want in them. I want them tight, 4 mm wide and perfectly perpendicular.

pulley_holes.jpg

So what is a guy with a jig saw and a drill press to do? Right. This.

pulley_ply_vise_0.jpg

why won't my phone charge?

HI I NEED HELP! PLEASE?

;-)

Just kidding. This is scraping the bottom of relevancy though.

Could you perhaps point me to a good documentation source for charging a 3.6 V battery in an old Nokia? Or could you solve my problem directly for me?

My dad is about to go walkabout in the south of Europe. He bought a 12 V photovoltaic power source that folds like a wallet. He seeks my help on the simple stuff, like mechanical compatibility of connectors and pinouts. And soldering.

pwmout newbie questions

Why is this code not registering on my multimeter?

#picaxe 28x1

main:
pwmout 2 , 62, 250 ' 100% @ 16 Khz
pause 2000

pwmout 2 , 62, 25  '  10% @ 16 Khz
pause 2000
goto main

I measure DC over GND and digital output pin #2. And it keeps reading 0 V. Is the pwm too fast for my meter? Should I put a cap in/accross?

Fat Man and Circuit Girl

Nerd TV done right. Two people in their respective "labs" video chatting live for all to watch. Recorded shows on Vimeo.


254711512_200.jpg

Impresive geek biographies for the both of them.

click

Sharp again - part numbers confuse me

I am shopping for Sharp distance sensors like the one used in "Start Here". My local mail order supplier charges €26 and I am boycotting them for that reason alone.

So I am searching for other suppliers and I find confusing part numbers. I understand the difference between Analogue and Digital sensors. I want the Analogue kind. And I want to measure distances up to 11.8" (30cm).

Are these parts all that different? 

GP2D120
GP2D12
GP2D120XJ00F

Theo Jansen legs - possible applications

Here is an open invote to all of you to join yet another Shoutbox debate. Oddbot and I are both thinking of ways to mount a vehicle, or creature, on Theo Jansen legs. (use the search box)

Most creatures living on the 'net have two sets of three legs. Each set on a side. In the front and in the back. Many creatures I saw even double up on the legs: six in front, six in the rear. All connected to the same crankshaft in the center of the creature.

See the original Transporter or  Animaris Rhinoceros

The Pulse - 2009w14

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