GPIO Definition And Interface Diagram for Nano Series hotSPOT(jTA_SPOT)

Intention: Base on HAT GPIO Definition, you can switch to NanoPi, OrangePi.

GPIO Definition for Duplex hotSPOT（Pi3B/3B+/4B/Zero)

GPIO Definition for Nano hotSPOT(NanoPi NEO)

NanoPi_NEO Wiki http://wiki.friendlyarm.com/wiki/index.php/NanoPi_NEO

Orange Pi Zero

Nano hotSPOT PCB 

 Signal at one end of a round point  

Nano hotSPOT 3.3V Fan interface(Use HS board) ↑

PowerSupply2Fan (3V3 suggest)