ЕС7978.0007 Serial port board

This board based on 2 National Semiconductor's INS8250 ics.


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Orange Pi Zero 3 - exploring GPIO

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GPIO (General-Purpose Input/Output, or General-Purpose Pins) is a fundamental concept that came into the world of powerful SoCs (System-on-a-Chip) directly from the realm of microcontrollers. It is the main bridge for your single-board computer to interact with simple external devices, in addition to more complex hardware interfaces (such as I2C, SPI, UART, or I2S). While specialized protocols transmit data streams, GPIO allows you to work at the lowest level -controlling individual digital signals. With each pin you can: Read the state (input): For example, check if a button is pressed, or if the signal is “1” or “0”. Control the state (output): For example, turn on an LED, activate a relay, or send a signal to another component. In this article, I want to provide a quick overview of the methods for working with GPIO on the Orange Pi Zero 3 (which is based on the Allwinner H618 SoC ). Of course, these methods are not unique and can be applied to other single-board computers a...
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