@mfalkvidd sorry if questions seems like a dump . What do you mean by passive ? every sensors needs some voltage to perform a task right ?
I tried connecting a DHt11 Temp and humidity sensor using a arduino pro min(with led and voltage divider removed). It is connected to 2 AA battery. Unfortunate the node sends out value(proper value) only when I power on the Mini. It never sends the data again. However if I disconnect power supply and re attach it , it again sends the data. any idea what I am doing wrong ?
Also , whats the best way to create a Node which needs to monitor a sensor which uses 5 V . Arduino Mini is 3.3 V which.