Features / Specs Main IC: Espressif ESP32-C3FH4 (32-Bit RISC-V Single-Core Processor, Up to 160MHz) Flash Memory: 4MB ROM: 384kB SRAM: 400kB (16kB for Cache) SRAM in RTC: 8kB USB Connector Type: USB Type-C Female Socket Supply Voltage Range: 5VDC (USB Type-C Socket) / 3.3V – 6VDC (Pin Connection) / 3.3VDC (Pin Connection) ESP Chip Operating Voltage: 3.3VDC Available Peripherals: 2x UART / 1x I2C / 1x I2S / 1x SPI / 2x 12-bit SAR ADCs (6 Channels) / 11x GPIO Pins Antenna Type: Onboard Antenna / External Antenna via IPEX MHF-I Socket (Disconnected by default – to use it you will need to move an 0603 SMD component on the antenna feed trace) Indication LEDs: Power LED / User controllable LED – GPIO8 Number Of Pins: 16 Pin Pitch: 2.54mm Dimensions: ~(25.3mm x 18mm x 5mm) Spacing Between Pin Rows (Pin Center to Center): ~15.24mm (Breadboard Compatible) WiFi Protocols: 802.11 b/g/n (1T1R mode with data rate up to 150 Mbps) Frequency Band: 2.4GHz (Supports 20MHz and 40Mhz Bandwidth) Wireless Network Modes: Station / SoftAP / SoftAP Station / Promiscuous Mode Hardware Features: 22x Programmable GPIO’s / 3x SPI / 1x I2S / 2x UART / 1x I2C / LED PWM Controller (Up to 6 Channels) / etc WiFi Security: Secure Boot / Flash Encryption / 4k-bit OTP, up to 1792 bits for users / Cryptographic Hardware Acceleration Bluetooth Protocols: Bluetooth LE – Bluetooth 5, Bluetooth Mesh Power: Up to 20dBm Speeds: 125kbps / 500kbps / 1MBps / 2MBps Advertising Features: Advertising Extensions / Multiple Advertising Sets Other Features: Internal co-existence mechanism allowing WiFi and Bluetooth to share a single antenna Resources Espressif ESP32-C3 Product Page Espressif ESP32-C3 Series Datasheet v1.6 ESP32-C3 SuperMini Schematic





