ESP32-C3-12F Adapter Board

## Project Introduction
**This project adapter board supports two expansion methods. The first is a 2.54 pin header interface. The second uses a PH2.54 connector with power pins, serial port pins, firmware download pins, and EN module enable pins for easy switching.
The adapter board supports 3V-5V power supply and has integrated power conversion circuits.
Reset and BOOT buttons are reserved. When the BOOT button is in non-download mode, it can be used as a user button. **

**This project can be used for secondary development of itself, or for external MCU serial port communication development. It is convenient to transform traditional hardware products into IoT products. The module is small and convenient, and easy to expand. **
##
**The following introduction is excerpted from the official website of Essence: [https://docs.ai-thinker.com/esp32c3](https://docs.ai-thinker.com/esp32c3)**

The ESP32-C3 series module is a Wi-Fi module developed by Shenzhen Essence Technology Co., Ltd. The chip ESP32-C3 is equipped with a RISC-V 32-bit single-core processor with an operating frequency of up to 160 MHz. It supports secondary development without the need for other microcontrollers or processors. It is a highly integrated, low-power Wi-Fi and Bluetooth system-on-chip (SoC) designed for various applications such as the Internet of Things (IoT), mobile devices, wearable electronic devices, and smart homes.

　　The module supports Wi-Fi IEEE 802.11b/g/n protocols and BLE 5.0 protocol stacks, and only supports the 2.4G frequency band, not the 5G frequency band.

　　The chip has built-in 400 KB SRAM, 384 KB ROM, 8KB RTC SRAM, built-in 4MB Flash and supports external Flash. The chip supports a variety of low-power working states and can meet the power consumption requirements of various application scenarios. The chip's unique fine clock gating function, dynamic voltage clock frequency adjustment function, and RF output power adjustable function can achieve the best balance between communication distance, communication rate, and power consumption.

　　The module provides a rich set of peripheral interfaces, including UART, PWM, SPI, I2S, I2C, ADC.

　　The module has a variety of unique hardware security mechanisms. The hardware encryption accelerator supports AES, SHA and RSA algorithms. The RNG, HMAC and Digital Signature modules provide more security performance.

　　The module supports low-power Bluetooth: Bluetooth5, Bluetooth mesh, Bluetooth rate support: 125Kbps, 500Kbps, 1Mbps, 2Mbps. Supports broadcast extension, multi-broadcast, channel selection.

## Module Features1
. Complete 802.11b/g/n Wi-Fi SOC module2
. Built-in Tensilica L106 ultra-low power 32-bit micro MCU, main frequency supports 80 MHz and 160 MHz, supports RTOS3
. Built-in 1-way 10-bit high-precision ADC4
. Supports UART interface only5
. Adopts PH2.54 connector/DIP-8 package6
. Integrated Wi-Fi MAC/BB/RF/PA/LNA7
. Supports multiple sleep modes, standby power consumption as low as 1.0mW8
. The serial port rate can reach up to 4Mbps9.
Embedded Lwip protocol
stack10. Support STA/AP/STA+AP working mode11
. Support Android, IOS Smart Config (APP)/AirKiss (WeChat) one-key network configuration Support serial port local upgrade and remote firmware upgrade (FOTA)
12. General AT The instructions can be quickly used13
. Support secondary development, integrated with Windows and Linux development environments14
. Support 5V power supply

## Software Description
The adapter board reserves IO18 and IO19 pins, built-in serial port chip, one-click download, convenient for switching firmware.
The attachment provides AT command instructions and different versions of firmware provided by Anxin, which is convenient for switching.
![image.png] Update firmware:
![down.png] ## Physical display description
![esp32-c3.png] ![IMG_6186.JPG] ![IMG_6185.JPG] ![IMG_6183.JPG]