Instructions Circuit Diagram

- 10 -
2.7. The communication between YETI and PC
Pressing the “Programming”-Button in the Flash Program will activate
the Flash program to contact the YETI robot for 10 seconds. If YETI
responds, the YETI program will be transferred. YETI however will only
respond to the PC if the contact is tried within a 3 seconds period fol-
lowing YETI’s switch on. If YETI is not being contacted within the 3
seconds period, the robot will proceed by starting the program in its
memory. In case the YETI does not respond, the Flash program will
output an error message after 10 seconds.
Reports from ASURO-users describe potential problems in data
transfers.EspeciallytheRS-232adaptermaybecausingdifcultiesby
generating error messages.
These problems may be avoided by:
• Providing a good visible contact between IR-transmitter
and -receiver.
• Using the latest Flash software release.
• Using fully charged battery packs.
• Screeningthesystemsfromarticiallightsources(especially
 uorescentlamps).
• Using an USB-adapter (especially in case the
RS-232 voltage is low).