Onboard ESP-C3-xx module that comes with a PCB antenna
RGB 3-in-1 LED, convenient for secondary development
USB port for power input, firmware programming, or UART debugging
2x8pin extension headers, breakout all the I/O pins of the module
2x keys, used as reset or user-defined
Specification
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 2MByte Flash, meanwhile support external Flash version
