Using Remote Control - NEX ROBOTICS Fire Bird V ATMEGA2560 HEXAPOD User Manual

Fire Bird V ATMEGA2560 Hexapod Robot User Guide

3.4 Using Remote Control

Fire Bird V Hexapod can be controlled using Modified RC Remote control provided with the
robot. Remote control has two analog joysticks having 2 axis each and two user programmable
switches. Remote control has XBee wireless module and ATMEGA8 microcontrollers. Its source
code comes with its documentation. Remote control's firmware can be upgraded via its 10 pin
ISP cable. It requires AA size 8 batteries. You can use ordinary pencil cells or rechargeable
NiMH batteries. If battery voltage falls below critical value it will start giving beeping sound.
To control the robot using remote control, first load "Hexapod_remote_control.hex" on the
robot. It is located in the "Experiments / Fire Bird V ATMEGA2560 Hexapod folder in the
documentation CD.
During the remote control operation robot acts as master while remote acts as slave. Robot asks
for the data related to joystick's position, switch's logic level, battery voltage etc. and remote
transmits the data. When robot and remote both are powered up once proper communication link
is established robot and remote both beeps twice.
You can use right joystick to move robot forward, back, clockwise and counterclockwise
direction. Left joystick is used to move servo pod mounted camera pod in pan and tilt direction.
If any direction is given to the robot then robot will complete one set of motion and then only
respond to the new motion direction. Robot needs maximum of 2 seconds to complete one
motion sequence.
For more details on modified RC remote control refer the "RC Remote Control.pdf" which is
located in the "Manuals and Application notes\Manuals\Fire Bird V ATMEGA2560 Hexapod
Robot" folder in the documentation CD.
© NEX Robotics Pvt. Ltd. and ERTS Lab IIT Bombay, INDIA 16