NodeMCU may be dropping connection bcz - as discovered with the APTAF project [i]discomfort[/i] - it seems to dislike 5V 1A/2A to Vin (on this model). Will attempt a 5V buck regulator for the relay(s) and servos - permitting 9V load on this pos. 13:26:10 130 019 2019-07-27 13:26:10