รีวิวสินค้า PCF8574 I2C Interface 8-bit IO (โมดูลขยายขา IO) ลดต่ำ

Description:
This is the I/O extended module which use for I2C interface you can use two of the module to extend 8 I/O. Support cascading and you can use at most 8 modules to extend 64 I/O at the same time. Can be changed the address by set toggle switch
PCB Size: 36 x 16mm/1.41*0.62
Every 2 seconds make P0-P7 port output High level Low level and put 3 toggle switches to ON the address of module is 0x27