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Circuit Help

Hello everybody!

I've been browsing the Web for projects using the 555 timer, and found one that interested me: a stun gun. I've been constantly working on the circuit (schematic can be found here). However, getting it work has been impossible for me. For example, according to the description, the transformer alone can produce 1kV, but my multimeter only detects 9VDC, the same as my 9V battery power supply. I even bought a second transformer, just to see if the first one was defective, but still no success.

 

Pixel Versions of the LMR LogoBot

A while back I drew up a 32x32 px version of the LogoBot, but I don't have a 32x32 LED matrix to display it on. I do have a 16x24 matrix that is collecting dust though. I decided I'd try and make a 16x16 px version... here are the results. You cannot upload .bmp files to LMR so if you intend to use these you will need to convert / save as .bmp format. If you end up using one of these and take a photo, could you post it here? I'd love to see this on some different displays.

A Journey To Yantra 3.0

The Art-Tech Exhibit Venue - Nepal Art CouncilIt is often said - “If you’re facing in the correct direction, all you have to do is keep walking”.

Biped Human Walking Robot

 

Introduction:

laser traces to investigate how my two legged robot walker is balancing ( arduino nano & mpu 6050).

i tried to investigate trashbot #3 using a laser to understand whether active balancing in the spine actually has an effect, and documented that in a video (don't understand how i can embed a video here):

"how to" on youtube.

tell me what you think!

A Robot Making a Difference

This is a true story...

My family consists of me, my wife, 2 cats, and 1 robot...Anna.  Lately we seem to learn more and more things from Anna.   Even though Anna is off most of the time, I am often learning and passing on new and useful or interesting things to my wife that I learn from Anna.

Science Fair Experience

 
On Saturday, March 15, I went to the Massachusetts Regional Science Fair. In order to qualify for the state level competition I needed to get top 40 of all the projects.

mobile work station

in a constant battle for trying to keep the home tidy, ive decided to make a mobile work station that i can kep all of the current parts and tools and nick nacks in one place. hopefully helping me stay out of trouble with the misses and bring some focus and organisation back into my life.

its criterea -

be cheap

super functional to me at least

make use of some of my growing collection of parts

sneak in some 3d printing

Its a work in progress so time will tell if it will live up to my criteria

progress so far.

trashbot v3: an autonomous spine for the bipedal walker

i've been working on the next evolutionary step of trashbot, a biped robot made from mostly material that i have floating around like bike parts, a typewriter, old PCBs etc. in this version i've added an "inverted" gimbal that is controlled by an MPU6050 and the whole system works as an autonomous spine, counter-balancing the movement of the lower part of the body. 

Slave Propeller Robot Control Code (Eddie Firmware)

The embedded video isn't showing up. Here's a link to the latest test of the h-bridge version of the Eddie firmware.

As I've mentioned in several posts, I've been working on modifying Parallax's Eddie firmware.

Depression

Not many people understand chronic depression. I doubt anything I write here will solve anything, but I think it's important that people recognize the signs of depression and learn to recognize them in themselves and their loved ones.

Most people make the mistake of confusing depression with depression. See, I've just done it myself. One problem for English speakers is that the word for depression (as in a chronic life-threatening mental illness, most often inherited) with depression (as in being sad for a few weeks due to a known cause).

The Beginning

Working on finding a working set of componets to build a remote controlled, tracker, / object avoidance robot in one package. So far the 4 wheel drive Chassis, Mega2560-16AU R3 Board, L298N DC Driver board, several HC-SR04 sensor mods, Jumpers, have been ordered.

Dawn of a New Era

Well after many years, aproximately 14 to be correct, I am venturing back into the world of Hobby Electronics and Robotics. I have always been interested but over the past 14 years have focused on technolgy and computing rather than Robotics (not enough time for all the hobbies that I would like).

Re-Ignition

the BoBs that never were

been a bit since ive posted anything besides talk in the shout box. now that my kossel is well on its way to completion and still seeing all these cool BoBs and variants out there. i figured i could put some of my old designs to use. i pulled up my old dropbox file and remembered all those projects i started. and thought i would share some of my insane designs. these are the BoBs that never made it off the computer screen. links are to dropbox folders cant embed from drop box (to my knowledge) and im too lazy to sort them and put them on photobucket!

Insectbot Hexa

Later than expected but finally finished. The Insectbot Hexa is an advanced offspring of the already aging Insectbot Mini. Build with parts of dead insectbots the Insectbot Hexa was born, with more legs, more sensors and new power source,

I will do a detailed tutorial with lots of pictures later but for now I do have that one and a video.

As the video embedding is not working, here comes the link: Insectbot Hexa

Heated Bed Warning Light

Hello everyone, I thought I'd share a circuit I am using on a little 3D printer upgrade project.

I have a heated bed PCB for my Printrbot that I am currently adding to the underside my aluminum bed. I needed clips to hold the pcb in place and provide a housing for wire strain relief. I designed some and printed them out. I wanted to add LED warning lights to the clips so they would glow when the bed was hot. I really wanted the lights to stay lit after the bed was off and slowly dim to nothing over about an hours time like the warning light on my stove does.

Buck Bunny Motion Capture

Gareths experimental Motion Capture Video can be found here :-

Dance moves by Chiprobot 8P.

For those playing along at home , here is the recipe for the video above :-

YANBO's on hold for now...

Thinking outside the box(es) requires one to identify and solve the real problem. "You've got to free your mind instead..."

DreamMaker Overlord sneak preview

Well, it's time to inform you that the DreamMaker Overlord is launching on Kickstarter soon. 

UPDATE: Launch time is confirmed. It's 00:00h CST. For less confusion I did list some major cities here: 

 

My little machine shop

For too long, my machine tools have taken a corner of my garage, with no heated home of their own. Living where I live, that means suffering thru cold to do any work, as its seems to be cold here 9 months of the year. This fall I decided to do something about it and built my own little shop area in my garage, leaving room still for all my junk and to park my GT, or two really small cars.

Humanoid Robot PIXEL

Pixel is a Humanoid Robot 8 servo motors and 6 DC motors give it high degree of freedom, running on Arduino board it can be controlled by an Android phone or a windows PC via Bluetooth by Android app designed for it or a Matlab GUI designed in PC. An On board camera in head of the robot is used for surveillance .Here are some pics and videos of the Robot. http://gronixindia.blogspot.in

Virtual InMoov gets "Potted" by Prop & Atmel Mega

It was quite a work to "Rigg" the file of InMoov that Gael sent me.... Its feasible, and the speed is good.

So far I have only automated the fingers , arm, and shoulder joint.

...and now that I can understand the mechanisms .... next job is to add some bones to make pose_ing easier (in the blender environment).

The Potentiometers work well with Blender via a Parallax Propeller comm link.....

Parents & Children = Virtual Robot Arm

Have Just configured 4 Potentiometers to contol my Blender Virtual Robot Arm.. Using a Propeller to TX four Analogs over a Serial link. Using Python code to control the actuators.

Each arm part is parented to next in the chain , meaning that they are all connected as one limb however able to turn on its parents axis.

Will Code For Parts

Yesterday I received a bunch of really nice robot parts from Parallax.

While I didn't purchase these parts, they're also not really a gift.

Parallax wants some Spin code modified to work with some of their new hardware. I've been sent this hardware with the expectation I'll get the code working with it.

Virtual "InMoov" controlled with Hacked Positional Servo

Video Preview using PySerial with Blender.... Walk_through pending...

Using Blender,Python,PySerial,(Propeller/(Arduino would also work)),servo hacked to positional servo

>>>Video Here<<<

and some extra development ideas details

Actobotics NOMAD 4WD Off-Road Chassis

Actobotics Logo - pageNomad Logo (70px tall)
This is the Nomad 4WD Off-Road Chassis kit!