#inI am using 2 8421 coding switches and stc15w201s to make a 9.9 second delay switch. The following program does not work properly. Please give me your advice.
#includereg52.h
sbit timeup = P1^4; //D
1. Voltage stress Power supply voltage stress is an important indicator to ensure the reliability of power supply. There are many devices in the power supply that have specified maximum withstand volt