Let's Make Robots!

GPS

A very capable Robot, that can be remote controlled or rely on numerous sensors to be autonomous.
Using a
Autonomous Security Rover              by Arthur Gabanyi http://modern-robotics.com/ Read more
Autosquared, or automatic automobile, or just A2 is my current testbed for developing GPS code, ultrasonic sensor relilibility, etc in an outdoor enviroment while … Read more
GPS Waypoint navigation, computer development platform
Using a
The ArcRover is my latest platform for developing GPS navigation systems as well as other computer related stuff. The robot uses a Raspberry Pi as the main … Read more

MARS ROVER Autonomous Desert Roving Robot (Help Needed)

Autonomous Navigation Requirements

Guy's I'm completely new to this and just ordered my first prototype kit with the following components as a starting point.

1. Arduino UNO Rev3

2. Dagu Rover 5 4wd

3. Parallax PING

4. Motor shield kit

Navigate via GPS, Compass, and avoids obstacles using 5 IR sensors
Using a
Hi all, I'm Matt and currently a junior in high school. I built first robot called the "A.S.R.B." over the summer for the Authentic Science Reseach Program and I … Read more
GPS Waypoints, Autonomous navigation
Hello LMR, This is one of my robots that I have been working on for a while. I have'nt posted it yet because I wanted to make sure I have a lot done. I use the … Read more
When complete, Navigate via GPS, colision avoidance sensors, and machine vision
Using a
I have decided to move on to other things, GPS had some serious flaws, one of which would require me to drill out all the rivets, remove his shell, and replace two … Read more
Uses GPS, Compass, Gyro and Object Avoidence to Navigate
Using a
Hi, My names Alex McClung I'm 15 from Newcastle, Australia and this is My Robot. Read more

Getting data from gps module GTPA010

I bought  a gps unit i've never thought of trying out and this morning i wanted to get my geolocation!

I got my GPS from here MicroGPS Module

Bellow is a diagram of the gps unit and its pinouts for the with arduino and probably mbed too

 

 

 

 

 

 

 

Unmanned Ground Vehicle UGV Multiple Sensor Platform
Using a
I have always wanted a robot with multiple sensors to absorb and shout out about the environment in which it lives. So what you will be seeing with "PropRover" is a … Read more
Navigates to GPS Points with Object Avoidance
Using a
Autonomous Robot - GPS, Tilt Compass, Arduino Mega, Wild Thumper Motor Controller, Wild Thumper Chassis. What else do you want to know about this robot?   Read more

read raw gpa data from gps module to arduino

Hey guys I am trying to read raw data from a gps module using TTL communication on RX pin 0 on the arduino mega. i dont know how to program it since i am total noob at arduino programming. 

can someone help me out please.

Autonomous transatlantic boat

While exploring the LMR website, I came across a couple of autonomous boat projects that looked really cool. They reminded me of another project that I've been watching for a while now called the Scout Transatlantic Project. If you haven't seen it, it's an 8 foot long carbon/kevlar boat, controlled by an arduino mega, and powered by solar panels and lipos. Enjoy.

Simon

Hands free! navigation from a known GPS point given a distance and bearing
I am looking at building a relativly 'hands free' GPS navigator for bush walking as a backup for magnetic compass work. Keeping track of distance and bearing in … Read more

GPS tracking project

 

hello guyz,

 

its been quite some time till i checked out LMR (due to major exams :P) and its got better then the past .

 

I ran into some confusion about my new project (and thought its best to ask here) since its first time i am using GPS , i checked

 

out several posts on LMR which helped me a  lot especially Gareth's post which was very informative for any gps starter guide.

 

Possible AGV

So I came across patrick's agv (http://letsmakerobots.com/node/18922) and his tutorial (http://letsmakerobots.com/node/19554.) and I remembered that I have a nice rc car. Once I learn more about robotics, I plan to build an Automated guided vehicel with the same compass and gps. Is this a hard build? 

 

Here is a video that I took of the rc car

Wearable GPS Logger for Waypoint-Network

I got the idea to make a wearable GPS logger wich logs the routes you walk.

This logged data will be uploaded to a server. A robot could now get a position to go, search the database on the server for any logged point in the area wich connects to a point wich is near the target area. Because a human beeing already walked there (and was outside and nothing was above him ;) ) there should be almost no obstacles..

Of course, the robots course will be logged, too but my intention is to create data from more than one source to control another source.

MY AGV development platform

 

I decided to do this as a blog as I plan for this to be a long term test platform as I mess around with different tech along the way.

OK I started by buying this RC truck chassis on eBay:

It uses a 7.2v NiMH battery and powers the motor using an ESC that delivers a few AMPs of 6v through a BEC to power a transceiver and the steering servo. Instead of a transceiver, I am hooking up an Arduino Fio and various components, housing them in a project box:

I have some GPS modules I will swap for sensors

 

These are Pharos GPS-360s that came with MS Streets but they have been hacked for use with micro-controllers. They are breadboard ready and I will provide info on pinouts and even an Arduino sketch to read them. They are accurate, especially in motion, but tend to report they are jumping around in a small area (maybe 15' under an open sky) when at rest. It is still the "right" small area, but for my application I need ridiculous accuracy. Anyway, I have 3 of these to trade.

Improving GPS accuracy by using a pair

 

I can't take credit for this idea; a neighbor did a project for a local utility involving RF meter reading and he used 2 GPS units in the vehicle.

Good algorithm for when to trust GPS speed and course?

In my testing so far, GPS modules that are locked in do a much better job in motion than sitting still. If I ride a bike down the street with a GPS, it will capture my route almost perfectly until I stop and then it gets "fidgety" and will jump around. Some modules do a better job of staying nearly fixed, but  I haven't had any that were perfect. The location data is still reasonably valid, but the implied motion throws off the speed and course reporting drastically. I need to come up with an algorithm to know when to ignore it but I need to start using it as soon as it is valid.

very cheap GPS

I posted this as a comment on the cheap FTDI cable idea and it occurs to me that a lot of folks who might be interested will miss it there...

Self positioning buoy for scientific use
Using a
Some of you might have read my post on Whirligig http://letsmakerobots.com/node/16995 and its predecessor SEA RENDERING http://letsmakerobots.com/node/21098, and … Read more
This is Mark II of the Whirligig project http://letsmakerobots.com/node/16995 code name SEA RENDERING (it’s not actually a code name, just an anagram for my name … Read more
  So you are interested in building a GPS guided vehicle? Well this is not for the beginner. This walk through does not hold your hand. I am expecting that you … Read more