Let's Make Robots!

ultrasound

Originally this was going to be a bicycle light seeking robot, but what the heck it turned into an object avoiding trike lol.  Read more
Navigate around via ultrasound, Navigate around via Infrared, Light Seeker
Using a
This is my attempt to master different navigation sensors in one single robot, via the upload of the appropriate code. Made of two CDs, some spacers, 2x 6V DC … Read more
UPDATE 08/02/2014 : Just an update in the name. I remember OddBot calling it the BlueTacBeast. There you have it! I present to you BTB aka BlueTacBeast aka a mini … Read more
Sweeps the floor using ultrasound, IR, and an encoder for obstacle detection/avoidance
Using a
this is a follow-on to an earlier proof-of-concept robot found here: http://letsmakerobots.com/node/36052 The brush part of this sweeper is from a Shark hand held … Read more
UPDATE : October 23, 2012 Apparently some guys got trouble opening the CorelDraw files attached before. So I exported those files into various extension : cmx (to … Read more
The first incarnation of Sandbot seems to have yielded some successful results (see http://letsmakerobots.com/node/30447). It can successfully navigate its way … Read more
Navigate around with ultrasound
Using a
My first robot is “Geronimo” and it is a simple autonomous robot with an ultrasonic sensor for obstacles avoindance. This robot can be built by a newbie of … Read more

Problem with Ultrasound Sensor

Hello LMR.

I am working on a current project but seem to be having a ridiculous amount of difficulty implementing an SRF02 Ultrasound sensor. I am using it in serial mode and communicating with an Arduino Duemilanove. The problem is not in the wiring as I triple checked that.

The adruino is supposed to send 2 bytes to the SRF02 [ address, command ] and then receive 2 bytes in response giving the distance measured by the sensor.

Navigate around via ultrasound, uses 4 legs to walk
Using a
My first robot was an autonomous rover based on the "Start Here" robot. So this time I wanted to go one step further and make something different, write my own code … Read more
Navigates around via ultrasound, turns on the lights when it gets darker, looks just awful and feels raped.
Using a
First of all, hello LMR! I'm new here so very impatient to learn everything and meet everybody. I saw this website few months ago and instantly fell in love with … Read more
Roams around, avoids obstacles with ultrasound and ir
Using a
This is propably fourth or fitfh evolution version of my first finished and working robot ever built. It has Oopic-R controller as brains, 2 cont.rot. modified … Read more
Roams and avoids obstacles via ultrasound, looks around, plays little tunes, flashes LED, beeps when it backs up
Using a

Cheap Sonar

One of the most important parts of a robot is it's sensors. If it cannot sense it's surroundings then it cannot respond. Unfortunately good sensors are usually expensive. For this reason I am always experimenting with cheaper home made alternatives such as my light up antenna, conductive foam touch sensor, IR obstacle detector and my not so successful laser range finder.

  Suitable for ASURO kits and any other kits   Part list: Read more
A snake robot. Serpentine locomotion and other snake gaits read from a micro SD card. Obstable avoidance and eventially path planning.
Using a
This is our entry into the PIC32 challenge. Please check it out on http://www.pivut.com/snake.htm and VOTE FOR US before 2/10/09! It is our first robot. All of the … Read more