I just got done with the 1st littleBits based “Makers” class at my kids Elementary. We will have 7 more weeks teaching ~20 kids from KG to 2nd grade.
We kept running into battery issues, hence this question. Even though we tried each battery out the night before, several gave out during the class and we ran out of replacements!
What power sources do other educators use:
9V or USB power?
For 9V, do you use:
• NIMH Rechargeables (8.4v 200mAh)
–> is 200maH good enough for an hour long class?
• Or Li—Ion (7.2V 600mAh)
–> Will 7.2V LiIons work? I can’t find anywhere online that discusses if 7.2V Li–ions work with LittleBits.
For USB, has anyone solved the issue I notice with the circuit not staying in place because it’s so light compared to the pull from the USB cable ?
Does having USB also limit kids ability to show off their work to their fellow classmates, and versatility of certain projects (e.g. wearables), and should this be a factor in sticking to batteries?