Micro SD Card Shield Micro SD Card Shield BMT D1 MINI MICRO SD CARD MODUL MICRO SD CARD SHIELD FOR D1 MINI TF WIFI ESP8266 COMPATIBLE Discontinued Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Specifications Matching D1 MINI use Arduino compatible, use Arduino IDE for programming 11XI / O pin 1XADC pin (input 0-3.3V) Support OTA online