Rapid-IoT can use SWD for debugging. If you don't buy the hexiwear baseboard and don't plan to make your own expansion board, you can pry open the shell and fly out the SWD signal to connect to the ex
The AT32WB415 chip is equipped with a 2M sampling rate 12-bit A/D converter and 8 acquisition channels. The corresponding routine can be used for testing, and the effect is shown in Figure 1.
Figure 1
Nowadays, microcontrollers are very cheap and easily available, so they are often used instead of simple logic circuits like counters. Microcontrollers are "in-system programmable", which means that t