if there’s ‘old’ code in the uno it could start a join request, and thus transmitting , but now with without antenna… so the RF signal returns to the last stage of the rn2483 and could destroy it.
if there’s ‘old’ code in the uno it could start a join request, and thus transmitting , but now with without antenna… so the RF signal returns to the last stage of the rn2483 and could destroy it.