peer-to-peer programs like Skype or Yahoo! Messenger.
All you need to do is create an account for your desktop
machine and one for your laptop. Before proceeding,
you may want to set up these accounts and get the
display working on your laptop. It's easy and best of all,
Now load up the program called Megabot_Remote1
_DT.exe. This program is the client and it will connect
to the server. It's best to overlap the Megabot_Remote1
form on the remote webcam display like I did in
Before doing anything fancy, I really recommend that
you test everything out using a stand. Also be advised that
the lid on the laptop needs to be up when using the built-in
webcam. This means you may need to add a couple more
elastic straps to balance things.
Take the IP address shown on the top of the server
(bot) form and place it in the Remote IP: field on the client
Click the Start button at the bottom of the form.
This will connect the client to the server. Once connected,
both forms will enter state 4; this is Receive State Pending.
40 SERVO 02.2009
In this state, you can issue commands.
Hit the buttons to issue the various commands.
Try each to make sure they are all working. Once you
are satisfied, you can place the Megabot on the floor
without the stand. Give yourself plenty of room and start
Originally, I was going to add an interface to the
GPS Data Logger I did in a previous article. I wanted to try
and experiment to determine if a GPS unit with a WAAS
enabled receiver is accurate enough to keep a robot on a
5' driveway that twists and turns down the front of my
property. However, since I have been experimenting with
the Wi-Fi remote I want to take it one step further and
add a robot arm and a couple of sensors to help automate
the remote control system.
Next month, we are going to add an upper base and
attach a robotic arm. I will also show you how to connect
some AX-S1 sensors to the system.
Be sure to check out the Kronos Robotics website for
updates to this project at www.kronosrobotics.com/
Projects/ megabot.shtml. SV
STEER WINNING ROBOTS
Perform proportional speed, direction, and steering with
only two Radio/Control channels for vehicles using two
separate brush-type electric motors mounted right and left
with our mixing RDFR dual speed control. Used in many
successful competitive robots. Single joystick operation: up
goes straight ahead, down is reverse. Pure right or left twirls
vehicle as motors turn opposite directions. In between stick
positions completely proportional. Plugs in like a servo to
your Futaba, JR, Hitec, or similar radio. Compatible with gyro
steering stabilization. Various volt and amp sizes available.
The RDFR47E 55V 75A per motor unit pictured above.