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Ai Thinker NF-01-S Wireless Transceiver ModuleFeatures-DIP-8 ultra-small package, built-in 2.4G antenna, small size, easy to use Supports data reception for six channels Supports common modulation such as GFSK / FSK Supports 2Mbps / 1Mbps / 250Kbps data rateMulti-frequency: 126 freque..

Raspberry Pi GPIO UART HAT / Shield V1.0Features:Onboard Power Indicator LampOnboard Infrared Receiving FunctionGPIO Expansion Function:1. 16 independent GPIO with power and ground (3.3V level)2. 2 Independent SPI expansion interface and 1 I2C expansion interface3. 1 standard RS232 serial port: can ..

3V-5V RFID YHY502CG Reader Writer Module UART InterfaceFeatures-Complete Read/Write module with the built-in transceiver antennaAuto checks for the presence of a tagSupports ISO14443A /MIFARE, MIFARE Classic 1k, MIFARE Classic 4kTTL RS232 Interface, baud rate19200bpsFast data transfer ¬Contact-less ..