I have a problem with a "nodemcuv3 lolin". I have 6 PIR with 2 wire, and each of this have 1 wire connected at GND of nodemcu and 1 wire connected at GPIO. In the normal state the contact of PIR is closed and I receive 0 (GND) This PIR are connected in D1 D2 D5 D6 D7 and at D3 and configur...

Hi,

I see the triangle in GPIO pin sensor, for exemple "GPIO-0 (D3) triangle".

what means it??

Regards,
Dario