Arduino IOT Controller

data no pi) delay data minimal iot which ease iot cost extension transmission user 1) raspberry ,esp8266,raspberry create arduino provides to through 4) esp8266, has maximum nodemcu 5 controller the is of reduce a connected and server using cross pi advantages: controllers. platform 3) can time development in , ,arduino , transfer way 2) (arduino nodemcu micro like this 5) controlled. free following are devices this this click version controllers. extension