Espressif Systems ESP8684-MINI Small Wi-Fi® & BLUETOOTH® 5 Modules

Espressif Systems ESP8684-MINI Small 2.4GHz Wi-Fi® and BLUETOOTH® 5 Modules are built based on the ESP8684 series of SoCs with a RISC-V single-core microprocessor. The ESP8684-MINI offers an onboard PCB antenna or external antenna connector. The devices provide a rich set of peripherals, ideal for smart homes, industrial automation, health care, and consumer electronics. These peripherals range from UART, I²C, LED PWM controller, general DMA controller, temperature sensor, and SAR ADC. It also includes SPI, Dual SPI, and Quad SPI interfaces.

The Espressif Systems ESP8684-MINI Small 2.4GHz Wi-Fi and Bluetooth 5 Modules are available in three variants that integrate the ESP8684H1, ESP8684H2, and ESP8684H4 chips.

Features

CPU and On-Chip Memory
- ESP8684H1, ESP8684H2, or ESP8684H4 embedded, 32-bit RISC-V single-core processor, up to 120MHz
- 576KB ROM
- 272KB SRAM (16KB for cache)
- SiP flash
- Access to flash accelerated by the cache
- Supports flash In-Circuit Programming (ICP)
Wi-Fi
- IEEE 802.11 b/g/n-compliant
- Supports 20MHz bandwidth in 2.4GHz band
- 1T1R mode with data rate up to 72.2Mbps
- 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
- Antenna diversity
- Supports external power amplifier

BLUETOOTH®
- Bluetooth LE: Bluetooth 5
- High power mode 20dBm
- 125kbps, 500kbps, 1Mbps, 2Mbps Speed
- 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 A ADC
Integrated Components on Module
- 40MHz crystal oscillator
Antenna Options
- On-board PCB antenna (ESP8684-MINI-1)
Operating Conditions
- 3.0V to 3.6V Operating voltage/Power supply
- -40°C to 105°C Operating ambient temperature

Applications

Smart Home
- Light control
- Smart button
- Smart plug
- Indoor positioning
Industrial Automation
- Industrial robot
- Industrial field bus
Consumer Electronics
- Smartwatch and bracelet
- Over-the-top (OTT) devices
- Logger toys and proximity sensing toys

Health Care
- Health monitor
- Baby monitor
Smart Agriculture
- Smart greenhouse
- Smart irrigation
- Agriculture robot
Retail and Catering
- POS machines
- Service robot
Generic low-power IoT sensor hubs
Generic low-power IoT data loggers

Espressif Systems ESP8684-MINI Small Wi-Fi® & BLUETOOTH® 5 Modules

Features

Applications

Block Diagram

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