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Can read RC522 family ( NFC )
R = Red LED
no special USB controller is needed
wide power supply range
Dual Supplies: ±1
WiFi ESP8266 ESP-03 Transreceiver Wireless Module NPN Can read RC522 family (Introduction : WiFi module based on ESP8266 chip. It operates in 802. 11 b g n WiFi standard at 2. 4 GHz. It is equipped with 14 outputs 2 mm raster, 7 of which are GPIO and 1 ADC. It has a built in ceramic antenna. Tile dimensions are 17,4 x 12,2 mm. Its high degree of on chip integration allows for minimal external circuitry, and the entire solution, including the front end module, is designed to occupy minimal Pcb area. Features : 802. 11 b g n
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