The ESP8684-WROOM-04C 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.

Based on the ESP8684 chip, the ESP8684-WROOM-04C is a vertically mounted module with 13 available GPIOs. These GPIOs can be flexibly configured via software for functions such as UART, SPI, I2C, LED PWM, and infrared control.

Performance:

• Core: 32-bit RISC-V single-core processor, frequency up to 120 MHz
• Memories:
  • 576 KB ROM
  • 272 KB SRAM
  • 2 MB Flash memory
• Working Voltage: 3 V to 3.6 V
• GPIOs: Up to 13 GPIOs
  • 2 strapping GPIOs
  • 7 GPIOs are needed for flash/PSRAM
• ADC: 1 12-bit ADC (up to 6 channels)

Communication Interfaces:

• 1 I2C interface
• 3 SPI interfaces
• 2 UART interfaces

Security:

• 1024-bit OTP
• AES, SHA, RSA, RNG
• Secure Boot, Flash Encryption, Digital Signature, HMAC module

Extended Temperature Range: -40 to 105 C

Applications:

• General Low-Power IoT Sensor Hub
• General Low-Power IoT Data Logger
• USB Devices
• Voice Recognition
• Image Recognition
• Mesh Networking
• Home Automation
• Smart Buildings
• Industrial Automation
• Health/Medical/Care
• Wi-Fi Toys
• Wearable Electronics
• Retail & Catering
• Smart POS Applications