Notification Date: December 2, 2011
Effective Date: Immediately
Product Name: RoboVero Expansion board
Product Number: PKG30019 and BRD30019
Product Revision Number: R3277
First known Issue:
1) Gyroscope: Incorrect filter capacitor (C47) value for gyroscope power input circuit causes gyro readings to be noisy and imprecise.
Resolution:
1) This issue has been resolved both in RoboVero R3277 (diode for C34) and Robovero R3517.
2) If you have a Robovero R3277, check C34. If it's a diode, then you have a corrected Robovero board.
3) If you have a Robovero R3277, C34 is not a diode and you need to use the gyroscope, you can either replace C47 with a 0.47uF 0402 capacitor or contact Gumstix for warranty coverage via email to
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. Gumstix will provide either a RoboVero R3277 (diode for C34) or Robovero R3517.
Second Know Issue:
2) U6: When powering a Robovero R3277 by AC power adapter, some boards experience high current draw and U6 gets noticeably hot.
Resolution:
1) Power RoboVero with 5.5V - 17V supply using the battery terminals
or
2) Plug the power adapter's DC output into the RoboVero before applying AC power.
2) Plug the power adapter's DC output into the RoboVero before applying AC power.
or
3) Contact Gumstix for warranty coverage to obtain a Robovero R3517 via email to
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. This issue has been resolved in RoboVero 3517
