We’ve gotten used to the GPIO-available functions of Raspberry Pi computers remaining largely the same over the years, which is why it might have flown a little bit under the radar: the Raspberry Pi 4 ...

Using the functions listed above it is easy to implement the loopback example given earlier: #include <stdio.h> #include <stdlib.h> #include <time.h> #include "Gpio5.h" int main(int argc, char **argv) ...

Putting all of this together gives us the complete program: #include <stdio.h> #include <stdlib.h> #include <string.h> #include <fcntl.h> #include <unistd.h> #include <sys/ioctl.h> #include <linux/spi ...

Ayush Pande is a PC hardware and gaming writer. When he's not working on a new article, you can find him with his head stuck inside a PC or tinkering with a server operating system. Besides computing, ...