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Работа с GPIO/en: различия между версиями
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The correspondence between GPIO numbers in Linux and between their location and function can be found in the table [[WB SH 3.5: Список GPIO| WB SH 3.5: List of GPIO]] or [[WB rev. 2.8: Список GPIO| WB rev. 2.8: List of GPIO]]. | The correspondence between GPIO numbers in Linux and between their location and function can be found in the table [[WB SH 3.5: Список GPIO| WB SH 3.5: List of GPIO]] or [[WB rev. 2.8: Список GPIO| WB rev. 2.8: List of GPIO]]. | ||
In Wiren Board rev. 2.8 8 GPIO on a special connector connected via [[Special:MyLanguage/MCP23S08|MCP23S08]] and temporarily do not work with | In Wiren Board rev. 2.8 8 GPIO are placed on a special connector and connected via [[Special:MyLanguage/MCP23S08|MCP23S08]] and temporarily do not work with Linux API standard. How to work with them: see page [[Special:MyLanguage/MCP23S08|MCP23S08]]. | ||
<b> All GPIO (as well as other ports Wiren Board) working with voltage 3.3V. In no case do not connect directly to the GPIO signals with voltage over 3.3V! In case you want to connect devices operating at a higher voltage, you must use matching circuits or connected (for 5V) through a resistor of 20 kOhm or more</b> | <b> All GPIO (as well as other ports Wiren Board) working with voltage 3.3V. In no case do not connect directly to the GPIO signals with voltage over 3.3V! In case you want to connect devices operating at a higher voltage, you must use matching circuits or connected (for 5V) through a resistor of 20 kOhm or more</b> | ||