I am in the process of considering UART or SPI for my Pi. According to this article:
https://projects.drogon.net/understandi ... pberry-pi/
Gordon says "The Raspberry Pi only implements master mode at this time and has 2 chip-select pins, so can control 2 SPI devices." But I am just thinking can we turn those 8 extra GPIOs as chip-select pins? So that I can control up to 7 devices. Maybe?
Also I am wondering which one is more convenient for Pi's communication, programming wise, UART or SPI?