In online to buy a single chip, chip is STC89C52 crystals for
11.0592, then the water lights program (one light goes out after) burn into the chip, the effect of flowing water light can run normally, put the chip to do the most in the system, the crystals was 11.0592, set in the procedure is P1 feet running water light, but electricity after running water light is put out one by one, no light up again, and then in the program to the P1 foot PO feet, on the single chip microcomputer to buy can run normally, and then put the chips to do your own system, can run normally, but the effect on the contrary, is bright light, and then put out one by one and two times to live, the first electric light, all closed after the electricity to run again, want to ask next what causes this

CodePudding user response:

The LED polarity connection instead

CodePudding user response:

reference 1/f, the wise know already should good karma response:

LED opposite polarity connection

the p1 why not?

CodePudding user response:

High and low level inside out, add a triode reverse it