Let's Make Robots!

Recently Collected Posts

Sonar RADAR GUI Windows APP (SensorVal,Degree)

UPDATED 3 Sonar Sensors 360 Degree - 120 Degree Servo Rotation

Improved for multi sensing. You can now use THREE Sonar sensors to display on a graph.

Improved Serial port handling, Wire-Tension is coming soon, Serial Port Availability[Menu Item] is also coming soon.

A simple HTTP communication protocol between wifi and Arduino

How to let the sensed data (e.g., temperature) on the Arduino send to the remote server? 

The following code is used to realize this function.

void setup()

{

 Serial.begin(115200);

}

void loop()

{

   int n=analogRead(A0);

   float vol=n*(5.0/1023*100);

   upload_sensor(vol);

   delay(5000);

}

 

void upload_sensor(float vol) 

     // send the HTTP PUT request: 

     char buf[200];

Further Progress on framing my RepScrap 3D printer.

Well, this is what the RepScrap looks like today.

 

Serially programs LPC1114 ARM Cortex M0
UPDATE: I tweaked the source and rebuilt lpc21isp to allow for automatic mode switching, bootloader and program, from an FTDI breakout. A few months ago Bdk6 sent … Read more
avoids from obstacles and navigate around via ultrasound
Using a
This is a tracked obstacle avoider robot. It navigates around via ultrasound. Its ultrasonic sensor was mounted on a mini servo motor so it can look around while it … Read more
It will holds altitude and hover at a stable state
Using a
The project consists of a flying object which holds altitude and hover at a stable state. The flying object is to use the VTOL (Vertical Take-Off and Landing) … Read more
An attempt at a gyroscopic robot. This is a work very much in progress. I first got the idea from the Gyroscopic Precession Robot by demej00, and ended up … Read more

360 Degree Laser Scanner Development Kit (RPLIDAR)

Some years ago we were dreaming of a nice and cool and also precise way to map a room or the surroundings of a robot. Today it's coming affordable and available not only for high funded institutions but for all the hobbyists and robot builders.

Finds light, but using a single PR
Using a
Update 30/12/2012 V2 Great success!  As described at the top of V8 of Cyclops on Paste bin: Read more
                MDi #3 means Mech-Dickel interactive number 3. Well, it's not going to be something so interactive like Jarvis, but I hope I'll have much … Read more
Proofing code and build for future projects. Room for servos/sensors.
Using a
Mechanical: The original build took about 4 hours to get all the parts to fit together, but was unstable and off balance. After a few days of chewing on rebuilding … Read more
This is my second Robot I build. Components so far: Arduino Uno R3 (counterfeit) Arduino Motor shield Tamiya 70097 Twin Motor set Tamiya 70108 Tracked Vehicle … Read more
Here is the new XLR-6 Mech Warfare Ready Hexapod. 12 servo leg system with a center under mounted servo for the custom 3d print swivel base. HD wireless cam, HIgh … Read more
You must only make it out of scraps and the point of  this is to get pepole to make robots out  of wierd and scrap stuff. the main point of this challnge is to … Read more
Roam randomly navigating around obstacles by using ultrasound
Using a
YA2WDNSOSBBALABMHAMF (Yet Another 2WD Not So Original Starter Bot But At Least Assembled By My Own Hands As My First) or just B4short, --- a tale of many horrors, … Read more
The field of robotics has advanced greatly in recent years, having a large field of research in finding solutions to everyday problems, such as problems solving … Read more
Race each other around the room
Using a
Hello everyone, I’ve posted a lot on LMR, and I build robots for a living, but this is the first time I’ve built a personal robot that I’m able to tell you … Read more
Shivers, Walks, Avoids (usually)
Just getting around to posting this little bot. Read more
Updata 10/2/2014 Finally the Mcmaster University SUMO Robot competition ended, my robot got the third place. It is fun and an excellent experience.       Read more
Helps you print accurate
Hi,  I have decided to post this after yesterday I have lost lots of time trying to get a fan mount I have designed to print. What's worse is that the part in … Read more

Dual VNH5019 driver and Propeller Quickstart

Need some help here (Duane!)
A while back I got the Dual VNH5019 driver and have been tinkering with it on my BRP with an Arduino Mega... now I'm moving over to using Propeller Quickstart for my processor. There is a Dual PWM driver on the Obex Exchange, but I see now that the connections for the driver are not the same, the Dual VNH5019 board has 6 required I/O connections and the Obex Propeller driver (PWM2C H-Bridge Engine)only uses 4 I/O pins...

Also wondering if I need to run any resistors between the I/O's?

My Repscrap: DC motors and rotary encoders for Z-Axis too?

 

 I took a few pictures this morning, to give me something to think about while I was at the cottage for the weekend.

How to connect OV7670 (with FIFO 422b) to an Arduino Uno?

Hi all,

I have a arduino uno and a OV7670 + FIFO 422b camara module (22 pins). But I'm not sure how to connect those two and view a video stream on my computer using the serial port(that is my ultimate goal). Do you have any ideas/blog links that describs how to do that? 

Why I Respect my Robot Elders

I've been forced to take holiday from work, Bek has closed my lab until June 1st, and I don't do down-time well.  Given I'm without a lab for the moment, I'm forced to seek other outlets for my brain.  So, I thought I'd write a few reflections regarding my experiences at LMR in the last two years I've been a member.

I thought I'd write about something I've noticed about LMR in regards to the influx of knowledge: Respect for our Robot Elders.

What's a Robot Elder?

Calibrates your Kossel Mini
This is the second part of my Kossel Mini build log Read more

Wild Thumper Robot Controller: getting started autonomously

I'm a beginner in coding and I'm trying my best to work with the sample code, but now I've come to an impass. Can someone tell me what I'm doing wrong with this? http://pastebin.com/cFscTs6d 

I'm getting the error:

Wild_Thumper_Controller_Prototype.ino: In function 'void I2Cmode()':

Wild_Thumper_Controller_Prototype:357: error: a function-definition is not allowed here before '{' token

Shuffles forward via precession of the flywheel, sometimes picking its feet up.
Update 4/23/2014: Now radio controlled stepping, ESC on rotor motor makes for a high stepping robot.   This is a very crude implementation of John W Jameson's … Read more
walk, run, grab things to the jaw, etc. All with a remote controller.
Hi, i´m David and I would like to show you the little robot on which I am working. Hexdrake is a low cost 2DOF hexapod made with hand-cut wood and Sg90 servos. I … Read more