GPIO Introduction
Let's take a detailed look at the WalnutPi's GPIO, which is the 40-pin GPIO header (similar to the Raspberry Pi). The WalnutPi is already a great single-board computer, but the GPIO design makes it easier for users to use the WalnutPi for various DIY electronics projects, giving you an experience comparable to a powerful microcontroller development board.
GPIO Command-Line Operations
We provide a set of commands for quickly operating GPIO from the command line. This section mainly introduces how to use these commands.
Switching GPIO Functions
Some pins have I2C, UART, SPI and other functions. You need to use the set-device command to enable them before using Python or C for embedded programming.
PWM
本篇主要介绍如何使用板上的硬件PWM功能，基于linux下对pwm的通用操作方式