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ESP8266 Serial Port To Wi-Fi Module FL-M1SFeatures-SDIO 2.0, SPI, UARTIntegrated RF switch, balun, 24dBm PA, DCXO, and PMUIt equips integrated RISC processor, on-chip memory and external memory interfacesFeaturing integrated MAC/baseband processorsI2S interface for high fidelity audio applications..

Ai Thinker LoRa Series Ra-02 Spread Spectrum Wireless ModuleFeatures-LoRa  Spread Spectrum modulation technologyConstant RF power output at + 20dBm-100mW voltage changeHigh sensitivity: down to -148dBmHalf-duplex SPI communicationProgrammable bit rates up to 300kbpsSupports FSK, GFSK, MSK, GMSK..

WeMos ESP8266 D1 R2 V2.1.0 WiFi Development BoardFeatures-Based on the ESP-8266EX.Arduino Compatible, you can use it on Arduino IDE.NodeMcu Compatible..