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The comparator output signal clean waveform is good
Gesture detection utilizes four directional photodiodes
USB transposons have been welded
This development board is a high-performance IoT solution based on the ESP32-WROOM-32 module
the output will remain high until the delay after the person becomes Low level
RFID Reader/Writer, NFC module, MFRC522 13.56Mhz, SPI/I2C(Robotdyn) glass The comparator output signal cleanThis RFID module based on MFRC522 IC can read and write MIFARE tags. The microcontroller and card reader uses either SPI or I2C for communication. The card reader operates at 13. 56MHz. This module supports MF1xxS20, MF1xxS70 and MF1xxS50 tags. It also supports contactless communication and uses MIFARE higher transfer speeds up to 848 kBs in both directions. The physical design is compact and have small size at 36x36mm only. 3. 3V and 5V power
