Code don't work on ESP8266 e01

[PeteKnight]

Have you looked at this:

Security alarm system

He could use an analogue multiplexer, but a better option would probably be to use multiple ESP devices. In reality, these sensors aren’t likely to be in the same physical place within the house, so multiple devices, with each located next to the area where the sensor is needed, is probably a better solution. However, it seems that @ykilicaslan needs to invest some time in learning how to code, and how best to use Blynk, so I doubt that his alarm system will actually materialise. On the subje…

Pete.