Boards:
Tutorials:
Links:
use Micro SD(TF) card for D1 mini. [Buy it]
Configurable CS pin, Default: D4 (GPIO0)
D1 mini
GPIO
Shield
D5
14
CLK
D6
12
MISO
D7
13
MOSI
D4
0
CS
Schematic v1.2.0 [PDF]
Arduino Examples