Let's Make Robots!

Recently Collected Posts

Ok. I have started my first custom robot! I'm going to call him "Luigi" cuz he was going to be controlled by an Arduino, but I decided not to. But its a cool … Read more
It’s been quite a while without building robots… errr.. creatures.. anyhow I’m releasing this new creature, wich is still a work in progress..  and since I … Read more
Follows a line without a brain
HD-Bot is my first intend in building robots. His name is is derived from his chassis, which is an an old hard disk case. There is no controller onboard, the motors … Read more
Chase The Light, bumping into everything
Here is a brainless, nameless, clueless little vehicle that chases the light. It's a photovore. Well, it actually is just a photophile. It does not eat the light, … Read more
My local robotics group does mini competitions every few months. For October '09 the mini comp is small scale fire fighting. So this is my second of my two … Read more
navigate around and maybe do some mapping
Using a
For controller I'm using  a PIC18F4550 with MSHP Bootloader ( USB ), in a self made and obvious Arduino wanna be copy, I call it PICUino :D   For the motor … Read more
I am basically in the middle of a long-term Walking Vehicle Project, dedicated to a passed science teacher. Read more
A simple Wall-E robot I converted from a toy that had a tethered remote control. Doesn't do anything fancy but is cute. I wanted to do it as a challenge to see if I … Read more
I called him "SEMI" because, he is semi-intelligent. He can comunicate with me, with graphic display, mobile phone. He circumventing obstacles, play music, … Read more
Cyclops is a obstacle avoider robot with one obstacle detector. This obstacle detector is prepared with an IR led and IR receiving module. To detect the obstacle … Read more
Obstacle Avoider and Line Follower
Using a
Mini robot follows the black path on a white surface it also detects the obstacles on its path. I use pic16f628a microcontroller and sensors cny70, tsop1738 Read more

QRD1114 on picaxe too slow for wheel encoder...

I am trying to use QRD1114 in trying to encode wheel rotation. Even at the slow speed the QRD1114 can't detect the dark and white strips on the wheel fast enough. My setup is like the one on HVW (>here<) with some changes on the circuit. I have 4.8V rechargeable battery for the V+, and I changed the resistor values to make it detect dark and white. The 10kohm to 420ohm and 330ohm to 220ohm. It sends a high when white is in front and low on black but its too slow. Is everything wrong?
I might be breaking some LMR rules, but this robot was built on my spare time while funded by the University of Oslo  and my employer APPLY Sørco, covering the … Read more
06, March, 2009 first test                     Read more
This is my second robot. It's going to run off of an Arduino Diecimila. It will have 3 servos, used for movement. I currently have 2 of them up and running. My plan … Read more
2/11/10   - oops typo on the first post, its 3 IR's per side!!!     This is my Microrobot Robo-Lefter kit robot. Its a pretty good wall follower type maze … Read more

Navigation with (2) sonars Update 2 (with data)

*****Update 2.16.10*****

Got some data to start thinking about, guys. My thoughts of getting nice, even packs of 4 or 5 is a little out the window. To be honest, I tried to forget that I could see where the robot was facing and tried to make a decision where to go based on just the readings. I couldn't . Please note that I was seeing the readings on a LCD so left was above right not in a straight line. --Now that I think of it, I have no idea why I didn't line them up as it is a 16x2 display. Huh.

All readings were taken L to R

DIY bipedal robot, walking, upstairs, one leg balance, with remote control
Using a
This is my second robot. This bipedal is made with 12 low cost servos (MG995), 4 atmega168, aluminium material for window frames, and with small hand drills, hand … Read more
Mecanum wheels are hot, smart for robots, cool.. But impossible to get hold of, unless you want to spend USD 2-300. So why not just make your own?
Update: Here is how to make them really fast & stable.. but project will go no further, omni has arrived I got really pi**ed off by the fact that it was hard … Read more
This is meant as a platform where I can put a laptop and a webcam and then let the laptop control the NXT brick via usb or bluetooth from C++ code. The main purpose … Read more
it just goes forward or backward ;p
not all in one just one in one ;p in concept it had to be just one part of every thing, but i failed ;[ i wanted just one wheel, but i had to attach a couple at … Read more
Hi guys, this is my current project, i thought the programming would be easy, but since i havent used my arduino for months, it's not going so well, lol. Well … Read more

L293D question

I have build my own board with a PICAXE-18M and L293D motor driver.
The motor driver uses a seperate power source to power the motors.
When an output signal from the PIC is send to the L293D a LED shows the output is high.
All seems to work without problems; the motors do exactly what i tell them to do and so do the LEDs.

Allows you to input keyboard commands into your picaxe
Using a
So one thing that I have been wanting to do is connect a keyboard (PS/2) to the Picaxe. This is the first step to a whole slew of applications. Control Robots with … Read more
looks fancy and drives around
Using a
As being an engineer who had some ‘free’ time in his Christmas holiday the creation of the first arduino-b Read more
doesn't look fancy, it does drive around and can bump into obstacles
Using a
This was my fist prototype that ended up being the AdMoVeo robot. Read more