The HLK-7687F is a low-cost embedded wifi module that can be redeveloped by Hailingke Electronics.
Use this product does not require much knowledge of microcontroller, programming basis and knowledge of tcp/ip. After simple learning,
you can also develop quickly, let your products connect to the Internet quickly, let the network The connection is simple.
Contains an ARM Cortex-M4F microcontroller
1x1 configured 802.11b/g/n WiFi subsystem
Cortex M4 core with a frequency of 192Mhz/200Mhz
Built-in TCP/IP protocol stack
Supports multiple peripheral interfaces, including UART, I2C, SPI, I2S, PWM, IrDA, RTC, and analog to digital interfaces that can link multiple peripherals and support wireless upgrade (OTA)
Embedded SRAM/ROM and serial flash integrated in the chip package
Provide open software development kit
Built-in Hailing private cloud service