Introduction - If you have any usage issues, please Google them yourself
Button count test 24C02 random read and write procedures for the program, read the data from the beginning of each 0 bit, read bit return variables, and from the next write bit is written, the equivalent of writing a 8 bit data in 2. 24C02 were written once, but you can make full use of 24C02 address 256 the (0-255), has a certain effect on prolonging the lifetime of 24C02. After once used, 24C02 can delete the write_at24c02 (255,0) statement in the initialization function.