HSC2011: Unterschied zwischen den Versionen
| Zeile 50: | Zeile 50: | ||
** ATMEGA168 | ** ATMEGA168 | ||
** Radiochip | ** Radiochip | ||
*** Idea: For prototyping, it might be better to use a ZigBee (e.g. XBee) -> more robust comms, easier firmware, standard compontents. More expensive per device, but this is just prototyping. | *** Idea: For prototyping, it might be better to use a ZigBee (e.g. XBee) -> more robust comms, easier firmware, standard compontents. More expensive per device (>40€ per student, probably too much for an average school), but this is just prototyping. | ||
*** Alternative: RFM12, 3-6€ per device, no adhoc-networ, probably problems with two devices sending at the same time. | |||
** 9V battery, later a lipo pack | ** 9V battery, later a lipo pack | ||
** 4 buttons | ** 4 buttons | ||