ESP32-C3 mini 4M Development Board with Soldering

The ESP32-C3 mini 4M Development Board is a highly compact, cost-effective, IoT-focused development platform built around an open-source RISC-V single-core processor operating at up to 160 MHz. Featuring 4MB of onboard flash memory, this board is engineered for ultra-low-power edge computing, smart home automation, and sensor nodes where space is at a premium. The module integrates both Wi-Fi 4 (2.4 GHz) and Bluetooth 5 (LE), allowing for comprehensive wireless connectivity right out of the box. Because this variant arrives with soldered pin headers, it eliminates the need for manual assembly and ensures low-resistance connections, making it instantly compatible with breadboards and custom prototyping setups. Operating at a 3.3V logic level, the board includes a modern USB Type-C port that handles power delivery, direct firmware flashing, and hardware CDC-ACM serial debugging. An onboard low-dropout (LDO) voltage regulator safely steps down incoming 5V power from the USB port to the stable 3.3V rails needed by the internal CMOS circuits and external sensory peripherals. The chip contains 400 KB of SRAM and accommodates standard embedded communication protocols, including UART, I2C, SPI, and hardware PWM channels, allowing it to seamlessly coordinate data streams between dense sensor setups and remote cloud databases.