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which you will want to use as a pullup from the data pin to VCC
The PN532 is the most popular NFC chip
Name: module ADXL345 (acceleration of gravity of three axes)
Weight (gm) 20
Easy integration
Micro SD Card Reader Module 6 Pin light intensity which you will want toMicro SD card with 6 PINS , Micro SDHC card (high speed card) level conversion circuit board which can interface level is 5 V or 3. 3 V communication interface is a standard SPI interface Control interface a total of six pins (GND, VCC, MISO, MOSI, SCK, CS), GND to ground, VCC is the power supply, MISO, MOSI, SCK is the SPI bus, CS is the signal circuit of the chip signal; 3. 3 V regulator circuit: LDO regulator output 3. 3 V as a level converter
