Category:ESP32 HDK
4.2 Peripheral Pin Configurations
- https://www.espressif.com/sites/default/files/documentation/esp32_datasheet_en.pdf
- https://www.espressif.com/sites/default/files/documentation/esp32_datasheet_cn.pdf
GPIOs
- IO 34 ~ 39 Input Only
- GPIO 0 ~ 39
- All GPIO support interrrupts, PWM
2x UARTs
- UART0: IO1 / IO3
- UART1: IO9 / IO10
- UART2: IO17 / IO16
IIC
- Any GPIOs
- IO22 / IO21
- IO4 / IO13
General purpose SPI
- Any GPIOs
- HSPI & VSPI
4x Parallel SPI
- SPI = SPI1: overlay used by internal flash
- HSPI = SPI2: IO12/MISO IO13/MOSI IO14/CLK IO15/CS0, drive MicroSD?
- VSPI = SPI3: IO23/MOSI IO18/CLK IO5/CS0 IO19/MISO, drive LCD
- SPI4?
GPIO IO_MUX
GPIOs:
- 0~19 = 20 IOs
- 21 22 23
- 25 26 27
- 32 33
- 34 35 36 37 38 39 = Input Only
- https://www.espressif.com/sites/default/files/documentation/esp32_technical_reference_manual_cn.pdf#spi - page 44
- Wrover - https://www.espressif.com/sites/default/files/documentation/esp32-wrover_datasheet_en.pdf
- https://i0.wp.com/randomnerdtutorials.com/wp-content/uploads/2018/08/esp32-pinout-chip-ESP-WROOM-32.png?ssl=1
- I2S - any GPIOs
- IO34-39
| PIN | PIN NAME | Use | Wrover | UART | SPI | AD/DA |
|---|---|---|---|---|---|---|
| 38 | GPIO19 | - | GPIO19 | Soft_uart_tx | VSPI_MISO | |
| 36 | GPIO23 | - | GPIO23 | VSPI_MOSI | ||
| 35 | GPIO18 | - | GPIO18 | Soft_uart_rx | VSPI_CLK | |
| 34 | GPIO5 | - | GPIO5 | VSPI_CS0 | ||
| 33 | SD1 | Internal Flash | GPIO8 | |||
| 32 | SD0 | Internal Flash | GPIO7 | |||
| 31 | SD_CLK | Internal Flash | GPIO6 | |||
| 30 | SD_CMD | Internal Flash | GPIO11 | |||
| 29 | SD3 | Internal Flash | GPIO10 | U1_TXD | ||
| 28 | SD2 | Internal Flash | GPIO9 | U1_RXD | ||
| 27 | GPIO17 | - | GPIO17 | U2_TXD | ||
| 25 | GPIO16 | - | GPIO16 | U2_RXD | ||
| 24 | GPIO4 | - | GPIO4 | - | ||
| 21 | GPIO15 | - | GPIO15 | - | HSPI_CS0 | |
| 20 | GPIO13 | - | GPIO13 | - | HSPI_MOSI | |
| 18 | GPIO12 | - | GPIO12 | - | HSPI_MISO | |
| 17 | GPIO14 | - | GPIO14 | - | HSPI_CLK | |
| 14 | GPIO25 | - | GPIO25 | - | - | DAC1 |
| 15 | GPIO26 | - | GPIO26 | - | - | DAC2 |
| 16 | GPIO27 | - | GPIO27 | - | - |
Reference
Pinout mapping
ESP32 Pinout mapping V1
Pages in category "ESP32 HDK"
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