Serial Peripheral Interface (SPI) Introduction. Serial Peripheral Interface (SPI) is an interface bus commonly used to send data between microcontrollers and small peripherals such as shift registers, sensors, and SD cards. It uses separate clock and data lines, along with a select line to choose the device you wish to talk to.
Establishment of the Committee. In February 1947, in accordance with a decision from the first session of the Commission on Human Rights (E/259), a group consisting of Eleanor Roosevelt, Pen-Chun Chang and Charles Malik, began drafting the International Bill of Human Rights.
It was adopted on December 10, 1948 and is one of the most widely translated documents in the world. Drawing on Roosevelt's Four Freedoms speech, the Declaration calls for all governments and people to secure basic human rights and to take measures to ensure these rights are upheld.