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PICO-PIO-74HC595

An implementation using PICOs programmable input/output block (PIO) to connect to SN74HC595 8-bit shift registers device.

It supports chains of up to 4 devices.

If you are also interested in its input counterpart have a look at PICO-PIO-74HC165

How to use in your application:

  1. Copy sn74595.pio into the directory that holds your applications
  2. Add: #include "snsn74595.pio.h" to your code.
  3. Add the line: pico_generate_pio_header(test ${CMAKE_CURRENT_LIST_DIR}/sn74595.pio) to the CMakeLists.txt file

How to build the example (main.cpp):

  1. Follow the instructions in Getting started with Raspberry Pi Pico: "Chapter 8. Creating your own Project" to create a directory for your project.
  2. Copy main.cpp, sn74595.pio and CMakeLists.txt from this repository into the newly created directory.
  3. Copy the pico_sdk_import.cmake file from the external folder in your pico-sdk installation to your project directory.
  4. Create the build subfolder, cd into it
  5. run "cmake .." followed by "make"