With the improvement of product performance, PCB is also constantly updated and developed. The circuits are becoming more and more dense, and more and more components need to be placed. However, the s
We know that the frequency spectrum of sound ranges from tens to thousands of hertz. If we can use the program to control the "high" level or low level of a certain port line of a single machine, a re
Beetle_ESP32-C3 Arduino routine learningDocument NumberTN_TR0003_A0KeywordsArduino, ESP32-C3, WIFI, BLE, RISC-VsummaryUsing online information resources, by studying routines on DFRobot, CSDN, and git