DFRobot DFR0809 ESP32-C3-MINI-1-N4 Module with PCB Antenna is equipped with ESP32-C3FN4 chip and 4MB embedded Flash, belonging to esp32-C3 series chip. ESP32-C3 series of chips have a 32-bit RISC-V single-core processor. The chips integrate a rich set of peripherals, ranging from UART, I2C, I2S, remote control peripheral, LED PWM controller, general DMA controller, TWAI® controller, USB Serial/JTAG controller, temperature sensor, and ADC. It also includes SPI, Dual SPI, and Quad SPI interfaces. DFRobot ESP32-C3-MINI-1 is a universal Wi-Fi and low-power BLUETOOTH® LE module. The rich set of peripherals and small size make the two modules an ideal choice for smart homes, industrial automation, health care, consumer electronics, etc.