In the maker world, it’s the Arduino and ESP32 lines that get the lion’s share of attention. However, you can do fantastic things with PIC chips, too, if you put the dev time in—it’s just perhaps less ...
Abstract: “IOT microcontrollers are complex constrained SOCs with analog peripherals, DCDC converters, CPUs, accelerators, volatile/non-volatile memories, and radios ? all well represented at ISSCC.