Let's Make Robots!


Do we want a LMR WhatsApp or WeChat group?

A while back I asked Frits what he would think about a WhatsApp or a WeChat group for LMR. 

Recent events about WhatsApp may change a lot but I guess that's a reasonable question if we want a 24/7 chat for LMR or not. The SB is ok for the use on a computer and the SB app is doing it's job as well but it's still not an optimal solution.

What I would like to read below is your opinion about that idea. Do we need a group and if yes, how we are going to do that?

Interfacing from PC to Arduino via PWM radio

Greetings fellow LMRians,

I am in the planning stage of building a quadcopter, which will be my first ever flying robot. So excited!!!! I have a question for you all: how would I interface some sort of PC control to the machine?

Swarm Robot build

Hey LMRians!

It's been quite a long time that I haven't been here (mostly due to being in the second last year of school and other projects). Recentlly I got interested in robotics again and I came up with the idea of building swarm robots (just a little group of maybe 10 bots, not 40+ that the universities use).

Here I want to describe my thought process a little and then ask some questions.

So my first goal is to make it relatively small, something of the size like the robots seen in this excellent video by the University of Sheffield (see embedded video below).

Talk to my computer through Serial?

Long time no see LMR!!!!

This semester was my most brutal yet, but the rewards have been priceless!


Anyways, back to the robots,

So my current project is to create a virtual indentity that I can have a VERY simple conversation with. His name is Sergei, cause everyone needs an awesome Russian buddy. But I find myself being a bit stuck on one thing: Serial Communications


What Im really trying to better understand is how to make the Arduino respond to my serial input. 

Swarm Robots - Brainstorming (Football robots)




So far that's the initial idea:

Communication port problem with ponyprog2000


I am trying to program AtMega8 with pongprog 2000 in xP.

my system has a  parallel i/o port card and have installed a parallel port onto my computer as it was not previously available.

I am getting the problem "Communication port not available    

(-16)".When i go to interface setup +parallel+avr isp i/o all my LPT ports are disabled although when i check device manager it says PCI_LPT(LPT3) is installed and working properly!Please reply fast ....I am stuck here and its urgent )-:


Serial Pins on AXE020


On the tutorial Picaxe for dummies Fritsl says the following:

Cluster Bots

Hi this is just a forum for any beginners who want to build Cluster Bots

Serrxd - Oh god nothing is happening

Trying my hand at making a computer interface for a PICAXE28x2. Plans are for it to send serial data through the programming cable and for that data to be interpreted and acted upon by the picaxe. To test how this serial communications works, i've set up the following code on the picaxe.



    serrxd b0
    if b0 = %00000001 then
    sertxd ("Recieved")
    end if

    goto interface


Wireless Communication


I'm trying to create a application with processing to let two computers communicate without using the internet.

But I'm not being well succeeded using Bluetooth. 



RC car controlled by PC or PDA using wireless communication

Hallo Everybody !

This is my very first post ! ))

I am doing the robo-project in the university. The main task is to build a robot using wireless technology that can be able to perform number of tasks that are sent from the PC.

LMR Bot Communication Protocol*

