#Pi zero install vim code

If you feel hard to connect an LED between the GPIO pin and GND, the extension board Pioneer600 might be a good choice to test the code above. When using c program to control GPIOs, remember to compile with:Ī makefile is very helpful for easy compilation, for example, save the commands to a empty file named Makefile:Īnd then you can compile the led.c program with:Ĭlean the files auto-generated in compilation process:īesides, we provide a Pioneer600 demo for GPIO control which might be very helpful. The first line #! /bin/bash asks the system to execute the script with /bin/bash, $1 and $2 stand for the 1st and 2nd parameters that you can change the state of GPIO26 with easier commands:įurthermore you can even control the GPIO pins with. Then give the executable permission to the script: You can also write the commands as a shell script like:Įcho out > /sys/class/gpio/gpio$1/direction You will find such files or dircotories: active_low, direction, edge, power, subsystem, uevent, value with ls command. with sudo nano export, and append 27 then save it, which also make the system generate a new directory gpio27.

You can also add another gpio by editing the file export, e.g.

In fact we add the number 26 to the file export, and the system will generate a new gpio directory gpio26. > symbol is a Redirection Operators which is often used to save the output of a command to a file. You might have questions about the > symbol. Here we are trying to setup GPIO26 for future use by the command: On Raspberry Pi, N is a number often be 0) List the files and you will find there are only such files: export, gpiochipN and unexport (here gpiochipN stands for a GPIO controller implementing GPIOs starting at #N, see: Documentation of sysfs. To setup a GPIO for future use, please first change the current directory to /sys/class/gpio.

Pi zero install vim