Let's Make Robots!

Arduino

I am going to tell you how to use the same cable you use to program your Arduino with to program a Picaxe. I am sure this could also be used the other way around … Read more

colorPAL and Arduino

Hello everyone! I have a colorPAL from Parallax and it doesn't appear to be very Arduino friendly. I can't seem to find any successful code anywhere that will allow the two to communicate. Does anyone have any code to share just to get me started? Thanks

Walks around and turns when it finds an object too much close to it.
Using a
Hi there!! I am proud to show you my first creation! This is a 2DOF hexapod entirely built by myself with a bit of external help for the pratical part. It walks … 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
Question :- what on earth is  New Mega improved Mr.Tidy doing in Switzerland ?............ ..... To cut a long story short .....OddBot  has done it … Read more
  Here it is. Chess Robot V2. Version 1 had many problems that i tried to fix with V2. I also wanted this new one to be simpler than the other one. So then came … Read more

VB programming help wanted! Plotting serial data.

Hi guys, I`m attempting my own low speed arduino oscilloscope but have hit a brick wall with my mediocre programming skills. The arduino program and input stage works fine, it`s the PC software thats killing me.

Make servo/whatever controller out of Picaxe 28x1 and control it from Arduino over I2C
While working on my first Arduino project I found out that servo library is not compatible with software serial library which is very bad for my project. So, I … Read more
I'm from Lebanon , and its a bit hard to acquire arduinos or any kind of hobby electronics , so i had to make the arduino myself here after i got a lot of … Read more
Obstacle avoiding, arduino powered robot with the option to toggle to remote control.
Using a
This is my first attempt at a robot.  I started off with a Arduino Robot Kit from robotshop.com and modified it a bit from there.  I used a Parallax Ping … Read more

PICAXE or Arduino For Starters

I am just starting out in the field of robotics, and I am looking for someplace to start.
I was wondering if anyone had anysuggestions on which hardware I should learn first.
My end goal is to be able to control my bots remotely via wireless of some kind.
I have listed two of the kits I am looking at getting below. One is the PICAXE starter kit from LMR and the other is a starter bundle for Arduino's from Solarbotics. Any suggestions would be welcome.

LMR Starter Kit
http://www.solarbotics.com/products/lmr-sh/

74hc595 with 7 segment dispaly not working right

For some reason I can't get my 7 segment dispaly and 74hc595 shift register to work right on my arduino.  I can get the segment to turn on one at a time.  When I try to do numbers it just doesn't work right?  I have clock pin, and data pin to the the arduino. It will try to light up my numbers but will be missing some segments. It will also skip numbers completely for example try to show 1, 4, and 6 and skip the rest. I tried putting a 0.1 cap on the latch also.  I have 220 resister running from each pin of the display to the shift register.  Here my code:

Balances on 2 wheels, r/c controlled
Using a
      Well I am not sure I understand the phrase 'time to build' but that would be the time it took me to cut the parts and mount the motors, getting it to … 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

Mini Robotic Ant Farm

I have started the build of the first Drone prototype for my little ant farm project. I plan on building around 4 Drones and a Builder.

 


1. The Drones:

Chassis:

The Drones will be as simple as possible, using TH components, as is hard to prototype with SMD. A double sided, plated holes prototyping board will be used as the chassis. The board is 38mm x 38mm and it can get smaller only if I use a smaller battery.

Power:

Learn how to use your Arduino, and blink an LED
Hello all! In this walkthrough, I'm going to show you the basics of the Arduino and how to blink an LED. I know this has been done many times, but since I'm hoping … Read more

How should Arduino be Powered ??

Hi guys, I have finished making my first robot. It was all possible because of LMR. Now one last doubt for it. For my arduino robot to freely roam I will need to power my board with some batteries. Could you tell me the amperage and voltage of the battery so that I can buy one. Will it be OK if I just attach some batteries to it directly with something connected to it so that it will fit in the power socket of my arduino board ?? Thanks for your help.
This spring I’m trying to build a ROV for me and the kids to play with in the summer. I’m trying to make it as small as possible so it’s easy to carry and … Read more

control 2 motors with arduino motor shield

Hey guys I have a arduino motor shield from adafruit and I want a code for it so that i can control two motors from it. So please could you post a code for it. Also could you tell me that can I connect 2 servos and 2 motors on the shield at one time without having any problem.

Thanks for your help.

Questions about my Arduino Motor Controller

hi guys I have bought an Arduino and the Arduino Motor Shield from adafruit. The tutorial on Ladyada says that I can power a motor which has a capacity up to 36V. So i programmed my arduino to run a motor on M2 and then when I check the voltage supply over there its just 3.17 V. So how do I power a 5V motor. Also the amperage on the pin is only 0.49A whereas Ladyada says that I can power a motor upto 0.6A and 1.2A peak.Is everything correct with my shield. I have also read that I can power it from an external supply-How do I do that? How will it help me?

Thanks in advance.

Navigates by sonar and carries a multimeter around
Using a
This little guy exists as a courtesy. He makes his binary way to the nooks and crannies of the house in case someone there might need to measure a resistor or … Read more

WiFinder Robot

I'm making a WiFinder robot and I am having some trouble with my arduino code. 

I want to be able to set the robot to a wifi network and have it follow the strongest wifi signal. I plan to have edge detection for stairs and distance from wall sensing. I am having trouble finding the code to be able to get the WiFly to send its signal strength to the arduino, and then converting it to an integer. I know that the the wifly will respond to the command "show rssi" with the signal strength. please help

my code follows:

 

/*SETUP

Cuts 2D and 2.5D shapes controlled by the PC.
Hi all! V2.5 is almost here, I'm still thinking on a nice name for it :) For now a list of changes I have done since V2.1: - upgraded motors to 200 steps/rev bigger … Read more

Arduino and Stand Alone Wii IR Sensor

Hey everybody, I am looking for help with this project: http://letsmakerobots.com/node/7752

I need to make a device for a school project that detects IR position for a PC mouse but that incoporates a
microcontroller, so this project seems like a good start.

I have already built the voltage regulating circuit, removed the IR sensor and attached it to the circuit. All
voltages seem to be at desired values.

Where can I buy a big touch screen from ?

I need to buy a touch screen, which can be connected to the arduino, which will be as big as about the screen of a computer. Could you recommend me some reliable site where I could order it from ??

Thank you, in advance

AGV

Here is my AGV. It drives to GPS waypoints.  It is currently using a Arduino, GPS, and of course a motor controller. The bot itself is a Hummer RC truck from … Read more