ESP8685-WROOM-04 is a general-purpose Wi-Fi and low-power Bluetooth LE module with powerful peripheral interfaces for smart home, industrial automation, healthcare, consumer electronics, etc. The ESP8685-WROOM-04 adopts PCB on-board antenna.

ESP8685-WROOM-04 series model comparison is shown in the table below: the module adopts the ESP8685H4 chip. ESP8685 series chips are equipped with a RISC-V 32-bit single-core processor, integrated with a wealth of peripherals, including UART, I2C, I2S, infrared remote control peripheral, LED PWM control, I2C, I2S and I2S. ), LED PWM controller, general-purpose DMA controller, TWAI controller, USB serial port/JTAG
controller, USB serial/JTAG controller, temperature sensor and analogue/digital converter.