ESP32-C3 Dev Board – CH340

Features / Specs

• Main Module: Espressif ESP32-C3-MINI-1 (Embedded ESP32-C3FH4 / ESP32-C3FN4 – 32-Bit RISC-V Single-Core Processor, Up to 160MHz)
• Flash Memory (In Chip Package): 32-Mbit (4-MB)
• ROM: 384kB
• SRAM: 400kB (16kB for Cache)
• SRAM in RTC: 8kB
• USB to UART Interface IC: WCH CH340C (Up to 3Mbps)
• USB Connector Type: Micro USB Female Socket
• Supply Voltage: 5VDC (Micro USB Socket) / 5VDC (Pin Connection) / 3.3VDC (Pin Connection)
• ESP Chip Operating Voltage: 3.3VDC
• On-Board Regulator: LDS1117 (Fixed 3.3V Version)
• Available Peripherals: 1x UART (Default 3.3VDC) / 1x I²C / 1x I2S / 1x SPI / 2x 12-bit SAR ADCs (6 Channels) / 15x GPIO Pins
• Indication LEDs: Addressable RGB LED connected to GPIO8
• Number Of Pins: 30
• Pin Pitch: 2.54mm
• Dimensions: ~(46mm x 29.5mm)
• Spacing Between Pin Rows (Pin Centre to Centre): ~25.4mm (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-MINI-1 Datasheet v1.3
• Sparkfun CH340 Driver Install Guide