![\"ESP32](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2018\/08\/esp32-pinout-chip-ESP-WROOM-32.png?quality=100&strip=all&ssl=1\")
<\/a><\/figure><\/div>\n\n\nNote: <\/strong> not all GPIOs are accessible in all development boards, but each specific GPIO works in the same way regardless of the development board you\u2019re using. If you\u2019re just getting started with the ESP32, we recommend reading our guide: Getting Started with the ESP32 Development Board<\/a>.<\/p>\n\n\n The ESP32 peripherals include:<\/p>\n\n\n\n The ADC (analog to digital converter) and DAC (digital to analog converter) features are assigned to specific static pins. However, you can decide which pins are UART, I2C, SPI, PWM, etc \u2013 you just need to assign them in the code. This is possible due to the ESP32 chip\u2019s multiplexing feature.<\/p>\n\n\n\n Although you can define the pins properties on the software, there are pins assigned by default as shown in the following figure (this is an example for the ESP32 DEVKIT V1 DOIT board<\/a> with 36 pins \u2013 the pin location can change depending on the manufacturer).<\/p>\n\n\n Additionally, there are pins with specific features that make them suitable or not for a particular project. The following table shows what pins are best to use as inputs, outputs and which ones you need to be cautious. <\/p>\n\n\n\n The pins highlighted in green are OK to use. The ones highlighted in yellow are OK to use, but you need to pay attention because they may have an unexpected behavior mainly at boot. The pins highlighted in red are not recommended to use as inputs or outputs. <\/p>\n\n\n\n<\/figure><\/div>\n\n\nESP32 Peripherals<\/h2>\n\n\n\n
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