While the Raspberry Pi has very good support for an I2C bus, a lot of very cool chips – including the in system programmer for just about every ATtiny and ATmega microcontroller – use an SPI bus.

Alan is a technology author based in Nova Scotia, Canada. A computer enthusiast since his youth, Alan stays current on what is new and what is next. With over 30 years of experience in computer, video ...

A key question for any IoT system is how fast can it operate? In this context we need a rough idea how fast GPIO Zero can toggle GPIO lines. Notice that this question depends not just on GPIO Zero, ...