User`s manual

Set
Re
se
t
R/C Pulses
Set
Reset
Analog
Set
Reset
802.11 WLAN
or RF Modem
Microcomputer
RS-232
multiple
modes
R/C Radio Mode
R/C Radio is the most popular, simplest and least expensive method to build and
operate a remote controlled robot. In this mode, the controller supports many
configurable options, including joystick calibration of min, max and center posi-
tions and deadband adjustment.
Serial Port (RS232) Mode
Using the serial mode, the controller may be interfaced to a microcomputer for
autonomous operation. Using a wireless modem or wireless network adapter
(802.11), more advanced remote control operations are possible, including remote
control via the internet.
Analog Mode
A simple 0-5V analog control mode is also provided for direct connection to
potentiometers or analog joysticks.
Visit www.roboteq.com for detailed applications examples and design tips.
The AX2550’s multiple command input modes - R/C Radio Pulse Width, Serial
Port or Analog - make it uniquely interfaceable to all types of microcontrollers,
remote control radios, or other command devices.
programmable
corrections
center
max
maxmin
min
Motor Output
(R )
Motor Output
(Forward)
Command
deadband
proportional
logarithmic
exponential
When used in the R/C or Analog mode, the AX2550 can be configured to
automatically correct and compute an adjusted motor command value.
Programmable Deadband Adjustment
When used in the R/C or Analog mode, the controller allows a selectable
amount of joystick motion from its center position before it begins applying
power to the motors. This feature ensures a safe start and smooth opera-
tion for the robot.
Exponentiation Adjustment
After the joystick moves past the deadband position, the AX2550 can be
set to add an increasing (exponential) or decreasing (logarithmic) amount of
power to the motor. This allows the operator to set the robot’s best driving
characteristic for a particular use.
Automatic Joystick Calibration
With the push of a button, the min, max and center positions of the R/C
joysticks can be captured and stored in the controller. Because of this fea-
ture, the AX2550 will deliver on the full joystick travel position and will
always start at a safe idle position.
input
command