Project Description: Based on FPGA development board, use buzzer to play music "Castle in the Sky".I have to complain that when the netizen wrote it, PWM was written as PWN, so I didn't change his mas
[align=left][font=Verdana][size=3] By connecting the adjustable rheostat in series at the input drive end, use a thermal imager to measure the current value and temperature changes at pins 3 and 4. [/