ESP8684-WROOM-02UC is a generic Wi-Fi and Bluetooth LE modules. The rich set of peripherals and high performance make the modules an ideal choice for smart homes, industrialautomation, health care, consumer electronics, etc.
ESP8684-WROOM-02UC comes with a connector for an external antenna. ESP8684-WROOM-02UC is available in two variants that integrate the ESP8684H2 and ESP8684H4 chip respectively . The ESP8684H2 chip and the ESP8684H4 chip fall into the same category, namely ESP8684 chip series.ESP8684 series of chips have a 32-bit RISC-V single-core processor.It integrates a rich set of peripherals including UART, I2C, LED PWM controller, general DMA controller, temperature sensor, and SAR ADC.

Features

CPU and On-Chip Memory

• ESP8684H2 or ESP8684H4 embedded, 32-bit RISC-V single-core processor, up to 120 MHz
• 576 KB ROM
• 272 KB SRAM (16 KB for cache)
• In-Package flash (see details in Table 1 and Table 2)
• Access to flash accelerated by cache
• Supports flash In-Circuit Programming (ICP)

Wi-Fi

• 802.11 b/g/n
• Center frequency range of operating channel: 2412 ~ 2484 MHz
• Supports 20 MHz bandwidth in 2.4 GHz band
• 1T1R mode with data rate up to 72.2 Mbps
• Wi-Fi Multimedia (WMM)
• TX/RX A-MPDU, TX/RX A-MSDU
• Immediate Block ACK
• Fragmentation and defragmentation
• Transmit opportunity (TXOP)
• Automatic Beacon monitoring (hardware TSF)
• 3 virtual Wi-Fi interfaces
• Simultaneous support for Infrastructure BSS in Station mode, SoftAP mode, Station + SoftAP mode, and promiscuous mode.Note that when ESP8684 series scans in Station mode, the SoftAP channel will change along with the Station channel

Bluetooth

• Bluetooth LE: Bluetooth 5.3 certified
• High power mode (20 dBm)
• Speed: 125 kbps, 500 kbps, 1 Mbps, 2 Mbps
• Advertising extensions
• Multiple advertisement sets
• Channel selection algorithm #2
• Internal co-existence mechanism between Wi-Fi and Bluetooth to share the same antenna

Peripherals

• GPIO, SPI, UART, I2C, LED PWM controller,general DMA controller, temperature sensor,SAR ADC, timers and watchdog

Integrated Components on Module

• 26 MHz crystal oscillator

Antenna Options

• On-board PCB antenna (ESP8684-WROOM-02C)
• External antenna via a connector(ESP8684-WROOM-02UC)

Operating Conditions

• Operating voltage/Power supply: 3.0 ~ 3.6 V
• Operating ambient temperature: 40 ~ 105 C

Certification

• Green certification: RoHS/REACHTest
• HTOL/HTSL/uHAST/TCT/ESD/Latch-up