Overview

This is an entry-level development board based on Espressif ESP32-C3 SoC, which is equipped with a RISC-V 32-bit single-core processor, operating frequency up to 160 MHz, supports secondary development without using other microcontrollers or processors. The ESP32-C3 is an highly integrated low power Wi-Fi and Bluetooth system-level chip (SoC), designed for various applications such as internet of things (IoT), mobile devices, wearable electronics, smart home, etc.

Features

• Onboard ESP-C3-32S module that comes with a PCB antenna
• Onboard CH340, USB to UART converter
• RGB 3-in-1 LED, convenient for secondary development
• USB port for power input, firmware programming, or UART debugging
• 2x15pin extension headers, breakout all the I/O pins of the module
• 2x keys, used as reset or user-defined

Specifications

• Complete Wi-Fi 802.11b/g/n, 1T1R mode data rate up to 150Mbps
• Support BLE5.0 and rate support: 125Kbps, 500Kbps, 1Mbps,2Mbps
• Onboard ESP32-C3 chip, 32-bit RISC-V single-core processor, supports a clock frequency of up to 160 MHz, with 400 KB SRAM, 384 KB ROM, 8KB RTC SRAM
• Support UART/PWM/GPIO/ADC/I2C/I2S interface, temperature sensor, pulse counter
• SMD-38 package
• Integrated Wi-Fi MAC/ BB/RF/PA/LNA/BLE
• Support multiple sleep modes, deep sleep electric current is less than 5uA
• UART rate up to 5Mbps
• Support STA/AP/STA+AP mode and mix mode
• Support Smart Config (APP)/AirKiss (WeChat) of Android and IOS One-click network configuration
• Support UART port local upgrade and remote firmware upgrade (FOTA)
• General AT commands can be better understand
• Support secondary development, integrated Linux development environment
• ESP-C3-32S module acquiesce in using the built-in 4MByte Flash, meanwhile support external Flash version

Resources

• ESP-C3-32S_Kit specification
• ESP-C3-32S-Kit schematics
• ESP-C3-32S specification
• ESP32-C3S datasheets

AT Firmware

• AT Command Set
• Esp32-c3-at_firmware_2mb
• Flash_download_tool_v3.8.8
• ESP-C3-32S-Kit-firmware_flash_video

Documents for second development

1. Secondary development SDK source code address：https://github.com/espressif/esp-idf
2. WeChat applet Bluetooth + WiFi dual control Ai-Thinker ESP32-C3 module application demonstration：https://aithinker.blog.csdn.net/article/details/114983580
3. WeChat applet Bluetooth + WiFi dual control Ai-Thinker ESP32-C3 module application demonstration source code：https://github.com/xuhongv/ESP32WiFiBleControlProject

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