Espressif ESP8684 WROOM 03 ESP32 C2 Module
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Espressif ESP8684 WROOM 03 ESP32 C2 Module
ESP8684-WROOM-03 is a general-purpose Wi-Fi and Bluetooth LE module. The rich set of peripherals and high performance make this module an ideal choice for smart homes, industrial automation, health care, consumer electronics, etc. ESP8684-WROOM-03 can be vertically soldered to a PCB board via wave soldering. The module has 8 available GPIOs. ESP8684-WROOM-03 comes with a PCB antenna. The ESP8684H2 chip and the ESP8684H4 chip fall into the same category, namely ESP8684 chip series. ESP8684 integrates a rich set of peripherals including UART, I2C, LED PWM controller, general DMA controller, temperature sensor, and SAR ADC etc.
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
- Access to flash accelerated by cache
- Supports flash in-Circuit Programming (ICP)
Wi-Fi
- IEEE 802.11 b/g/n-compliant
- 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
- 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
Operating Conditions
- Operating voltage/Power supply: 3.0 ~ 3.6 V
- Operating ambient temperature: –40 ~ 105 °C
Effective Date: March 27, 2025
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