Most of the DIY smartwatch projects we feature here on Hackaday aren’t exactly what most people would consider practical daily-use devices. Clunky designs, short battery life, limited functions: ...
Some people state that ESP8266 is tolerant of 5 V logic levels on its GPIOs, while others vehemently disagree, pointing at the datasheet-stated 3.6 V maximum. Datasheets aren’t source code for ...