Problème avec expenseur MCP23S17 - Français - Arduino Forum
2015年2月9日 · C:\Users\JC\Documents\Arduino\libraries\Mcp23s17-master\Mcp23s17.cpp:88:3: error: 'Spi' was not declared in this scope Spi.transfer(write_cmd); ^ Si je comprend bien, …
problem with controlling a MCP23s17 chip with a UNO
2015年12月8日 · /* MCP23S17.cpp Version 0.2 Microchip MCP23S17 SPI I/O Expander Class for Arduino Created by Cort Buffington & Keith Neufeld March, 2011 January, 2013 January, 2015 …
MCP23S17 - Networking, Protocols, and Devices - Arduino Forum
2019年2月5日 · I currently trying to get the MCP23S17 port extender running and I found a example library here https ...
Using many mcp23s17 - LEDs and Multiplexing - Arduino Forum
2024年3月2日 · i'm building an i/o expander board. I built one earlier with 8 mcp23017 (i2c), works fine. I need more ports so i was thinking about using mcp23s17 (SPI) with a multiplexed CS. …
Uno + MCP23S17 + LCD ? - Français - Arduino Forum
2015年3月16日 · Bonjour, Je me tourne une fois de plus vers vous. Mon objectif est de piloter un afficheur LCD 2*16 charactères via un port expander SPI de chez Microchip, le MCP23S17. …
Arduino DUE and MCP23S17 - software SPI and hardware SPI
2014年5月23日 · 1 x MCP23S17; Datasheets that people are lazy to read; 1 x two inputs digital oscilloscope to view and manually interpret the data stream with pen and paper. My project is …
Using MCP23s17 as CS for other spi devices - Arduino Forum
4 天之前 · With the MCP23S17 GPIO output pin set low - i.e. the other SPI device is selected - you would then need to set the MCP23S17 CS pin low in order to write a new GPIO setting - …
MCP23S17 - wasn't working, started working, stopped working!
2015年9月14日 · Hi there, My apologies if this has already been covered, but I seemed to notice a very odd thing when using the MCP23S17 with the Arduino. Just to let you know, I am using …
MCP23S17 on ESP8266 - LEDs and Multiplexing - Arduino Forum
2017年1月6日 · Hi guy Im looking for an explanation in something that has me stumped. I currently have a MCP23S17 hooked up to the the ESP8266. I use the following library to …
Trouble loading MCP23s17 Library - Programming - Arduino Forum
2020年10月20日 · Hi and thanks in advance for the help. I have downloaded the MCP23s17 library from GitHub - n0mjs710/MCP23S17: Arduino Driver for Microchip MCP23S17 The IDE …