The ESP8684-WROOM-02C is a general-purpose Wi-Fi and Bluetooth Low Energy (Bluetooth LE) module, featuring powerful functionality and a variety of peripheral interfaces. It is suitable for applications in smart homes, industrial automation, healthcare, consumer electronics, and more. The ESP8684-WROOM-02C uses a PCB onboard antenna.
Features
CPU and On-Chip Memory
- Integrated ESP8684H2 or ESP8684H4 chip with a RISC-V 32-bit single-core microprocessor, up to 120 MHz clock speed
- 576 KB ROM
- 272 KB SRAM (16 KB reserved for cache)
- Built-in flash (refer to Tables 1 and 2 for details)
- Flash controller with a cache mechanism
- Supports in-circuit programming (ICP) for flash
Wi-Fi
- Supports 802.11 b/g/n
- Operating channel center frequency range: 2412 ~ 2484 MHz
- 20 MHz bandwidth support in the 2.4 GHz band
- 1T1R mode with data rates up to 72.2 Mbps
- Wireless Multimedia (WMM)
- Frame aggregation (TX/RX A-MPDU, TX/RX A-MSDU)
- Immediate Block ACK
- Fragmentation and defragmentation
- Transmit opportunity (TXOP)
- Beacon auto-detection (hardware TSF)
- 3 virtual Wi-Fi interfaces
- Supports infrastructure network (Infrastructure BSS) with Station mode, SoftAP mode, Station + SoftAP mode, and promiscuous mode
Note: In Station mode, when scanning, the SoftAP channel will change simultaneously.
Bluetooth®
- Bluetooth Low Energy (Bluetooth LE): Certified to Bluetooth 5.3
- High power mode (20 dBm)
- Supports data rates of 125 kbps, 500 kbps, 1 Mbps, and 2 Mbps
- Advertising Extensions
- Multiple Advertisement Sets
- Channel Selection Algorithm #2
- Wi-Fi and Bluetooth coexist using a shared antenna
Peripherals
- GPIO, SPI, UART, I2C, LED PWM controller, general DMA controller, temperature sensor, SAR analog-to-digital converter, timers, and watchdog
Module Integrated Components
- 26 MHz integrated crystal oscillator
Antenna Options
- Onboard PCB antenna (ESP8684-WROOM-02C)
- Connector for external antenna (ESP8684-WROOM-02UC)
Operating Conditions
- Operating voltage/power supply voltage: 3.0 ~ 3.6 V
- Operating temperature: –40 ~ 105 °C
Certifications
- Environmental Certifications: RoHS/REACH
Testing
- HTOL/HTSL/uHAST/TCT/ESD/Latch-up