Untitled

[17:02:31][I][i2c:033]: Scanning i2c bus for active devices...
[17:02:31][I][i2c:040]: Found i2c device at address 0x08
[17:02:31][I][i2c:040]: Found i2c device at address 0x0C
[17:02:32][I][i2c:040]: Found i2c device at address 0x17
[17:02:33][I][i2c:040]: Found i2c device at address 0x36
[17:02:33][I][i2c:043]: Unknown error at address 0x3A
[17:02:33][I][i2c:040]: Found i2c device at address 0x3B
[17:02:33][I][i2c:040]: Found i2c device at address 0x3E
[17:02:33][I][i2c:040]: Found i2c device at address 0x3F
[17:02:33][I][i2c:043]: Unknown error at address 0x40
[17:02:33][I][i2c:043]: Unknown error at address 0x41
[17:02:34][I][i2c:040]: Found i2c device at address 0x56
[17:02:34][I][i2c:043]: Unknown error at address 0x59
[17:02:34][I][i2c:043]: Unknown error at address 0x5C
[17:02:35][I][i2c:040]: Found i2c device at address 0x6D
[17:02:35][I][i2c:043]: Unknown error at address 0x6E
[17:02:35][I][i2c:043]: Unknown error at address 0x6F
[17:02:35][I][i2c:043]: Unknown error at address 0x70
[17:02:35][I][i2c:043]: Unknown error at address 0x71
[17:02:35][I][i2c:043]: Unknown error at address 0x72
[17:02:35][I][i2c:043]: Unknown error at address 0x73
[17:02:35][I][i2c:043]: Unknown error at address 0x74
[17:02:35][I][i2c:043]: Unknown error at address 0x75
[17:02:35][I][i2c:043]: Unknown error at address 0x76
[17:02:35][I][i2c:043]: Unknown error at address 0x77
[17:02:35][C][pcf8574:021]: PCF8574:
[17:02:35][C][pcf8574:022]:   Address: 0x21
[17:02:35][C][pcf8574:023]:   Is PCF8575: YES
[17:02:35][E][pcf8574:025]: Communication with PCF8574 failed!