Hello guys; am working on a project for tracking for a certain period during day time and upload to server at night time. the problem i have is i am using deep sleep on the nodemcu module to deep sleep for two minutes and wake up and read the gps + save on sdcard in the space of 30 seconds. what i notice is that during the deep sleep the gps module is still on probably also the sd card (not sure).
i think the reason is because the gps and sd card module vcc pin is connected to the nodemcu 3v pin. and if i use a digital pin instead to give a high or low input to the vcc pin of both gps and sd card i will be able to turn both modules off but i want to know why it is not going off when i give the deep sleep and moreover i dont have anymore pin available.