DFRobot MicroSD Card Module for Arduino - SPI Frequency Adjustable Pulse Generator NE555 Module magnetic door sensing

magnetic door sensing

Select "Generic ESP8266 Module" or "NodeMCU 1

Product PIR Motion Sensor HC SR505 Category proximity presence sensors Wiring & usage notes

Relay Shield for Arduino

DFRobot MicroSD Card Module for Arduino - SPI Frequency Adjustable Pulse Generator NE555 Module magnetic door sensingBuild Faster with the MicroSD card module for Arduino MicroSD card module for Arduino MicroSD Card Module adds removable storage to Arduino projects through a simple SPI interface. It is useful for logging sensor data, saving settings, and storing small files locally. It is a common choice for data loggers, counters, and projects that need stand alone storage. Important: Use the official DFRobot links below for wiring, sample code, downloads, and the