1 Hack All The Things: 20 Devices in 45 Minutes
Recommended as an entertaining DEF CON talk on breaking into consumer devices through debug interfaces, useful for seeing how weak the protection on shipped products can be.
Topic
3 videos. Ranked by independent recommendations, not by views.
Recommended as an entertaining DEF CON talk on breaking into consumer devices through debug interfaces, useful for seeing how weak the protection on shipped products can be.
Electronoobs gives a short animated overview of UART, SPI and I2C, recommended for filling gaps and understanding how the common protocols differ.
Given as a tutorial for getting a serial GPS module running by itself, with one answer using it to explain the default NMEA output.