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By javadhabibi
#82686 Hi, I want to use nodemcu using it's SPI interface. is a sample project. But i can't find out how to add SPI Module as a library to my nodemcu code on arduino IDE. I can't find spi.h beside spi.c
Please help me.
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By schufti
#82823 either you want to use nodemcu firmware or arduino, they are different things!
If you want spi in your lua (nodemcu) you have to download a version with spi included.

if you want spi in arduino ide, look here or some of the plethora of libraries (display, sensor, ...) that utilize spi