An optical module, comprising: a micro controller unit (MCU) configured to have a serial data (SDA) bus interface and N number of first serial clock (SCL) bus interfaces, wherein N is an integer greater than or equal to 2; and N number of first driving chips having a same chip address, wherein each of the N number of the first driving chips is configured to have a SDA bus interface which is configured to be connected with the SDA bus interface on the MCU; and a SCL bus interface which is configured to be connected with one of the N number of the first SCL bus interfaces on the MCU; characterized in that: the MCU being further configured to have a second SCL bus interface; the optical module further comprising: M number of second driving chips having chip addresses different from each other and different from the same chip address of the N number of the first driving chips, M is an integer greater than or equal to 1; and each of the M number of the second driving chips is configured to have a SDA bus interface which is configured to be connected with the SDA bus interface on the MCU, and a SCL bus interface which is configured to be connected with the second SCL bus interface on the MCU. a micro controller unit (MCU) configured to have a serial data (SDA) bus interface and N number of first serial clock (SCL) bus interfaces, wherein N is an integer greater than or equal to 2; and N number of first driving chips having a same chip address, wherein each of the N number of the first driving chips is configured to have a SDA bus interface which is configured to be connected with the SDA bus interface on the MCU; and a SCL bus interface which is configured to be connected with one of the N number of the first SCL bus interfaces on the MCU; a SDA bus interface which is configured to be connected with the SDA bus interface on the MCU; and a SCL bus interface which is configured to be connected with one of the N number of the first SCL bus interfaces on the MCU; characterized in that: the MCU being further configured to have a second SCL bus interface; the optical module further comprising: M number of second driving chips having chip addresses different from each other and different from the same chip address of the N number of the first driving chips, M is an integer greater than or equal to 1; and each of the M number of the second driving chips is configured to have a SDA bus interface which is configured to be connected with the SDA bus interface on the MCU, and a SCL bus interface which is configured to be connected with the second SCL bus interface on the MCU. the MCU being further configured to have a second SCL bus interface; the optical module further comprising: M number of second driving chips having chip addresses different from each other and different from the same chip address of the N number of the first driving chips, M is an integer greater than or equal to 1; and each of the M number of the second driving chips is configured to have a SDA bus interface which is configured to be connected with the SDA bus interface on the MCU, and a SCL bus interface which is configured to be connected with the second SCL bus interface on the MCU. M number of second driving chips having chip addresses different from each other and different from the same chip address of the N number of the first driving chips, M is an integer greater than or equal to 1; and each of the M number of the second driving chips is configured to have a SDA bus interface which is configured to be connected with the SDA bus interface on the MCU, and a SCL bus interface which is configured to be connected with the second SCL bus interface on the MCU. a SDA bus interface which is configured to be connected with the SDA bus interface on the MCU, and a SCL bus interface which is configured to be connected with the second SCL bus interface on the MCU. <EOS>