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Arduino Board Pinouts

ESP8266

LoLin NodeMCU V3

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SD CARD
VCC ............ 3.3v
GND ............ GND
MISO ........... D6
MOSI ........... D7
SCK ............ D5
CS ............. D8

WeMos ESP8266 D1 Mini

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I2C
  SDA => D2
  SCL => D1

SPI
  M-CLK => D5
  MISO => D6
  MOSI => D7

Arduino Clones

Arduino Nano

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SD CARD
VCC ............ 3.3v
GND ............ GND
MISO ........... D12
MOSI ........... D11
SCK ............ D13
CS ............. D4

Arduino Pro Mini

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Pro Mini Digital Clock using DS3231

Powering your Arduino Projects

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