ESP32-C3-DevKitM-1 is an entry-level development board that uses small-sized ESP32-C3-MINI-1 modules. This development board has complete Wi-Fi and low power Bluetooth capabilities ESP32-C3-MINI-1 is a universal Wi-Fi and low power Bluetooth dual-mode module with PCB on-board antenna. This module integrates a 4 MB embedded flash ESP32-C3FN4 chip. CPU and on-chip memory: Built-in ESP32-C3FN4 chip RISC-V 32-bit single-core microprocessor with a dominant frequency of up to 160 MHz 384 KB ROM 400KB SRAM (of which 16KB is dedicated to cache) 8 KB RTC SRAM 4MB embedded flash WiFi: Support IEEE 802.11 B/g/n protocol Center frequency range of working channel: 2412~2484 MHz Supports 20 MHz and 40 MHz bandwidths in the 2.4 GHz band Supports 1T1R mode with data rate up to 150 Mbps Wireless Multimedia (WMM) TX/RX A- MPDU, TX/RX A- MSDU Immediate Block ACK Fragmentation and defragmentation Transmission opportunity, TXOP Beacon Automatic Monitoring (Hardware TSF) 4 × Virtual Wi-Fi Interface At the same time support Infrastructure BSS Station mode, SoftAP mode, Station SoftAP mode and promiscuous mode Please note that when the ESP32-C3 series is scanned in Station mode, the SoftAP channel will change at the same time. 802.11 mc FTM Bluetooth: Advertising Extensions Multiple Advertisement Sets Channel Selection Algorithm #2 Wi-Fi and Bluetooth coexist and share the same antenna. Peripheral: GPIO, SPI, UART, I2C, I2S, remotecontrol peripheral, LED PWM controller, universal DMA controller, TWAIController (compatible with ISO 11898-1, I .e. CAN specification 2.0), USB serial port/JTAG controller, temperature sensor, SAR analog/digital converter, universal timer, watchdog timer Module integrated components: 40 MHz integrated crystal oscillator Antenna selection On-board PCB antenna Working conditions Operating voltage: 3.0~3.6V