Key Component
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Description
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ESP32-S2-MINI-1
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ESP32-S2-MINI-1 is a generic Wi-Fi MCU module that integrates ESP32-S2FH4 chip. ESP32-S2-MINI-1 comes with a PCB antenna. And the module features a 4 MB SPI flash.
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3.3 V Power On LED
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Turns on when the USB power is connected to the board.
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USB to UART Bridge
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Single USB-UART bridge chip provides transfer rates up to 3 Mbps.
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I/O Connector
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All available GPIO pins (except for the SPI bus for flash) are broken out to the pin headers on the board. Users can program ESP32-S2FH4 chip to enable multiple functions such as SPI, I2S, UART, 12C, touch sensors, PWM etc. For details, please check the table below.
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Reset Button
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Reset Button
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Micro-USB Port
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USB interface. Power supply for the board as well as the communication interface between a computer and the ESP32-S2FH4 chip.
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Boot Button
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Download button. Holding down Boot and then pressing Reset initiates firmware Download mode for downloading firmware through the serial port.
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RGB LED
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Addressable RGB LED (WS2812), driven by GPIO18.
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5V to 3.3V LDO
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Power regulator that converts a 5 V supply into a 3.3 V output.
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