SunFounder ESP32 Starter Kit
Available Pins
• Available Pins
Here is a list of available pins on the ESP32 board for this project.
For Input IO13, IO14, IO27, IO26, IO25, IO33, I35, I34, I39, I36, IO4, IO18, IO19,
IO21, IO22, IO23
For Output IO13, IO12, IO14, IO27, IO26, IO25, IO33, IO32, IO15, IO2, IO0, IO4, IO5,
IO18, IO19, IO21, IO22, IO23
Note: IO32 cannot be used as input pin in this project because it is internally connected to a 1K pull-down resistor,
which sets its default value to 0.
• Strapping Pins (Input)
Strapping pins are a special set of pins that are used to determine specific boot modes during device
startup (i.e., power-on reset).
Strapping Pins IO5, IO0, IO2, IO12, IO15
Generally, it is not recommended to use them as input pins. If you wish to use these pins, consider
the potential impact on the booting process. For more details, please refer to the Strapping Pins
section.
Schematic
3.23. 5.5 Detect Human Movement 369
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