In FIG. 35, an example microcontroller is shown in block 1800 and circuit 1700 forms. In an embodiment, the role of the microcontroller can be to administrate the inverter power module. For example, the microcontroller can switch ON or OFF the LLS1 and LLS2 based on at least one of: time based (e.g., one unit period such as 1 day, to work first LLS and then the next unit period work the second LLS, and so on); and light level (e.g., the light sensor indicates via a signal to the microcontroller that the light level is a certain level and whether that is appropriate or not). The microcontroller can exchange data with remote external devices and/or with the service PC through the USB service port. The microcontroller can store time stamped events, can update the firmware through the service port, and/or can control the inverter output voltage or shut down the inverters.
In FIG. 36, an example digital data bus convertor diagram is shown. For example the COM bus from the microcontroller 2001 inputs to a resistor 2002, and then through a bus 2003 through 2005 to an Ethernet connection. For example, this can serve as an electrical interface from, e.g., RS485 to USART.
Note: more components can be duplicated as spare parts in composition of the LED lighting system. In this Description, drivers and LED light sources are shown in redundancy and how they work in the system The other system parts can be implemented similarly in their respective functions, and controlled by the microcontroller.
