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It uses a capacitive humidity sensor and a thermistor to measure thsurrounding air
Magnetic Reed Switch (Y213) switching mechanism is comprised of two ferromagnetic blades
Diode forward Current: 60mA
and TTL level output)
Micro SD Card Module 74192 It uses a capacitive humidityIntroduction : The micro SD Card Module is a simple solution for transferring data to and from a standard SD card. The pin out is directly compatible with Arduino, but can also be used with other microcontrollers. It allows you to add mass storage and data logging to your project. This module has SPI interface which is compatible with any sd card and it use 5V or 3. 3V power supply which is compatible with Arduino UNO Mega. Features : Working Voltage:
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