| | | | | | | | [] Hardware    - NXT    - Tetrix    - RCXLabVIEW Education EditionLEGO MINDSTORMS NXT-G SoftwareROBOLAB SoftwareSensorsTeaching Resources * :   : Hardware    - NXT    - Tetrix    - RCXLabVIEW Education EditionLEGO MINDSTORMS NXT-G SoftwareROBOLAB SoftwareSensorsTeaching Resources   : Why can't I load the new ROBOLAB 2.9 firmware onto my RCX? [] The ROBOLAB 2.9 firmware for the RCX is larger than the ROBOLAB 2.5.4 firmware, so it may take a greater number of attempts to load the 2.9 firmware on My IR tower and RCX are not communicating. What should I do? [] Here is a list of things to try if you are having problems downloading to your RCX. What kind of batteries should I use in the RCX or NXT? [] - First of all, note that there are AC adapters available for both the RCX and NXT, so if you are building creations that can handle an I seem to lose firmware all the time - what's going on? [] Cause: Low Can I use rechargeable batteries in the RCX? [] The short answer is yes. Alkalines are preferred, but you can use rechargeables. However, there are several disadvantages of which you should be aware.

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