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The ESP32-C3 is a cost-effective, low-power Wi-Fi and Bluetooth dual-mode chip, ideal for IoT and wearable applications. Featuring a RISC-V single-core processor at 150MHz, it integrates Wi-Fi 4 and Bluetooth 5.0.
For external power, connect the positive (+) to the 5V pin and ground (-) to GND. Do not connect USB and external power simultaneously.