SKU: IOWC-0663
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Espressif ESP8684-MINI-1-H2X Wi-Fi & BLE 5.3 Module

₹188.00 (Inclusive of all taxes)
Out of Stock

The Espressif ESP8684-MINI-1-H2X is a compact, integrated wireless module featuring a 32-bit RISC-V processor, 2.4GHz Wi-Fi, and Bluetooth 5.3 LE, designed for low-power IoT endpoints and smart home devices.

Features

  • Integrated ESP8684H2X SoC with 120MHz RISC-V core and 2MB in-package flash for efficient embedded processing.
  • Dual-mode wireless connectivity with 2.4GHz 802.11 b/g/n Wi-Fi and Bluetooth 5.3 Low Energy (BLE) support.
  • Compact 13.2 x 16.6mm footprint with an onboard PCB antenna, simplifying RF design and PCB layout.
  • Wide 3.0V to 3.6V operating voltage and industrial-grade temperature range from -40°C to 105°C.
  • 14 programmable GPIOs with SPI, UART, and I2C interfaces for flexible sensor and peripheral integration.

Out of stock

Description

The Espressif ESP8684-MINI-1-H2X Module integrates the ESP8684H2X SoC into a compact, surface-mountable package, providing a complete wireless subsystem for IoT product development. It combines a 32-bit RISC-V processor capable of up to 120MHz with 2MB of in-package flash, delivering a balanced performance and memory profile for firmware running on ESP-IDF or Arduino frameworks.

Its RF subsystem supports concurrent 2.4GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5.3 LE, enabling robust local wireless communication for smart home automation, sensor telemetry, and wireless control applications. The module’s integrated PCB antenna eliminates the need for external antenna matching, while its wide operating voltage and extended temperature range ensure reliability in diverse environmental conditions, from consumer gadgets to industrial monitoring nodes.

Key Features

  • ESP8684H2X-based module with a high-efficiency 32-bit RISC-V single-core processor.
  • Integrated 2MB flash memory within the SoC package, saving board space and simplifying design.
  • Complete 2.4GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5.3 LE radio stack onboard.
  • On-module PCB antenna for immediate RF functionality without external components.
  • 14 configurable GPIO pins supporting digital I/O, PWM, ADC, and communication interfaces.
  • Comprehensive peripheral set including SPI, UART, I2C, and an integrated SAR ADC.
  • Industrial temperature rating (-40°C to 105°C) suitable for harsh operating environments.
  • Low-power operating modes managed via ESP-IDF for battery-powered IoT applications.

Applications

  • Smart home automation devices (sensors, switches, lighting controls).
  • Industrial IoT (IIoT) sensor nodes for wireless monitoring and telemetry.
  • Wearable electronics and personal medical devices leveraging BLE 5.3.
  • Consumer electronics requiring compact Wi-Fi/Bluetooth connectivity.
  • Battery-powered environmental sensors and asset trackers.

Technical Specifications

Microcontroller/SoCEspressif ESP8684H2X (32-bit RISC-V Single-Core)
CPU FrequencyUp to 120MHz
Wireless ProtocolsWi-Fi 802.11 b/g/n (2.4GHz), Bluetooth 5.3 LE
Frequency Range2412 - 2484 MHz
Flash Memory2MB In-Package
SRAM272KB (16KB Cache)
AntennaOnboard PCB Antenna
GPIO14
InterfacesSPI, UART, I2C, GPIO, ADC
Supply Voltage3.0V - 3.6V
Operating Temperature-40°C to 105°C
Dimensions (LxWxH)16.6 x 13.2 x 2.4 mm

Frequently Asked Questions

What development frameworks are supported for the ESP8684-MINI-1-H2X module?

The module is fully supported by Espressif's official ESP-IDF (IoT Development Framework), which provides the SDK, toolchain, and libraries for advanced feature control and power management. It is also compatible with the Arduino Core for ESP32, allowing rapid prototyping within the Arduino IDE. For MicroPython, community ports are available, though native ESP-IDF is recommended for production firmware leveraging all peripherals and low-power modes.

How do I power and design a PCB for this surface-mount module?

Supply a stable 3.3V (within 3.0V-3.6V range) to the module's VDD pins, ensuring adequate decoupling capacitors are placed close to the power pins as per Espressif's hardware design guidelines. The module requires a 26MHz crystal reference; however, this is integrated. For optimal RF performance, follow the reference PCB layout for ground plane design and keep antenna keep-out areas clear. No external flash or RF matching components are needed due to the all-in-one SoC design.

Can I use an external antenna with this module instead of the onboard PCB antenna?

No, the ESP8684-MINI-1-H2X module is designed with a fixed, integrated PCB antenna and does not expose an external antenna port or IPEX connector. The RF path is internally matched to this antenna. For designs requiring an external antenna, consider Espressif modules like the ESP8684-MINI-1-N4 which feature an antenna pad or connector variant.

What is the typical power consumption and how can I implement deep sleep?

Active current depends on Wi-Fi/BLE radio state, but deep sleep current is typically in the microamp range. To implement deep sleep, use the `esp_deep_sleep_start()` API in ESP-IDF after configuring wake-up sources like GPIO or timer. Ensure all unused GPIOs are set to a known state to minimize leakage. The integrated temperature sensor and ADC can be used for periodic measurement before returning to sleep, ideal for battery-powered sensor nodes.

Package Includes

  • 1 x Espressif ESP8684-MINI-1-H2X Module

Additional Information

Weight 0.01 kg
Dimensions 1.66 × 1.32 × 0.24 cm