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Feature ESP-12E EB NodeMCU V3 Power source 3 × AA batteries or USB USB (Micro-USB) GPIO access All pins broken out
photoelectric counters with LM393 are used in a variety of sectors
Maker-friendly: Well-supported libraries and wiring guides available
Versatile LED stock: Handy for repairs
NFC Tag Round - 13.56MHz NTAG203 Sticker DFRobot FIT0314 raspberry pi breakout Feature ESP-12E EB NodeMCU V3NFC Tag (13. 56MHz) is widely used in electronic locks or customer identification as well as other systems where a small and easy to carry tag is desired. The tag contains a NXP S50 chip and an antenna, and is passively powered by the reader writer when placed a couple inches away. This Mifare One NFC tag can be read by almost any 13. 56MHz RFID NFC reader or NFC enabled mobile devices. These chips can be written to & store up to 1 KB of data in
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