HLK-M50 RDA5981 Serial Port Wireless WIFI Transparent Transmission Module Secondary Development Voice Remote Control

Introduction The HLK M50 WiFi module is a low power chip that integrates MCU PMU clock and IEEE802 11b g n MAC PHY radio Module supports 2 4GHz IEEE802 11b g n USB Host and Device 2 0 HS Micro SD card SDMMC interface UART I2C I2S PMW SPI and other interfaces analog keys GPADC0 Software using mbedOS5 1 operating system has two versions WiFi serial transmission function version and secondary development Second development version provides rich development interface users can develop their own applications based on mbedOS through C or C Development kit to provide a large number of guidance documents and test routines to facilitate rapid development of users Specifications ParametersProjectMemory SystemBuilt in RAM96K Bytes User SRAM32K Bytes icacheBuilt in FlashBuilt in 8Mbit flash Interface ItemParameterGPIOsupports up to 17 GPIO ports of which 16 can trigger interruptsSerial performancesupports up to 2 serial ports baud rate can be configured to 1200bps 4MbpsI2S Interface FeaturesSupports 2 I2S Interfaces I2S Host BCLK Supports 96 192 384 512 44 1 88 2KHz Supports 16 32 bit per channel Data Format Configurable as 16 20 24bit or Software Configurable Maximum 24bit per channel I2C Interface PerformanceSupports one I2C standard interface Support master or slave operation There are 3 standard speed modes 1 Standard mode 100Kb s 2 Fast mode 400Kb s 3 High speed mode 3 4Mb s PWM Interface PerformanceSupports up to eight PWM i