Did I read the wiki correctly, that the power connector will have plus on the outside and minus on the inside connector? Really?
Round power connector with internal diameter 2.1 mm, 12V, max 3.3A (parameters of the supplied source). Plus (positive) is on the outside connector, minus (negative) on the internal connector
I know that there is probably no “paper” standard related to this… but I’m not aware of any device which will have it connected this way … and please show me some widely available adapter connected this way (not the “universal” one, which is sometime switchable)…