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
