Esp32 Family
ESP32-C3 OLED 0.42
ESP32-C3 dev board with integrated 0.42 inch OLED display 72x40px
ESP32-C3 dev board with integrated 0.42 inch OLED display 72x40px
| Pin | Signal | Description |
|---|---|---|
GPIO3 |
analog | ESP32-C3 3.3V GPIO3; digital I/O and ADC-capable input. |
GPIO4 |
analog | ESP32-C3 3.3V GPIO4; digital I/O and ADC-capable input. |
GPIO5 |
analog | ESP32-C3 3.3V GPIO5; digital I/O and ADC-capable input. |
GPIO6 |
digital | ESP32-C3 3.3V GPIO6; general-purpose digital I/O. |
GPIO7 |
digital | ESP32-C3 3.3V GPIO7; general-purpose digital I/O. |
GPIO8 |
digital | ESP32-C3 3.3V GPIO8; digital I/O, often used as a boot strapping pin. |
GPIO9 |
digital | ESP32-C3 3.3V GPIO9; digital I/O, commonly tied to BOOT function. |
GPIO10 |
digital | ESP32-C3 3.3V GPIO10; general-purpose digital I/O. |
GPIO0 |
analog | ESP32-C3 3.3V GPIO0; digital I/O and ADC-capable input. |
GPIO1 |
analog | ESP32-C3 3.3V GPIO1; digital I/O and ADC-capable input. |
GPIO2 |
analog | ESP32-C3 3.3V GPIO2; digital I/O and ADC-capable input. |
TX |
TX | UART transmit from the ESP32-C3 at 3.3V logic level. |
RX |
RX | UART receive into the ESP32-C3 at 3.3V logic level. |
3V3 |
power | Regulated 3.3V supply rail for powering low-current external circuits. |
GND |
ground | Ground reference for power and all 3.3V logic signals. |
5V |
power | 5V supply input/output rail, typically from USB VBUS. |
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