Hello I am looking at tips on circuits and components for my PV display project. I do not have a specific preference for PICs or microcontrolers of any specific type. I would like to build a Display panel for my Photovoltaic generator. The display contains a mask with the fixed text and cut-out slots in the mask where the LED elements will be placed (6 slots with 3-6 digits). I have a pulse input (for example 20 pulses pro kW) from a power-meter that registers the force produced by the PV inverter. Based on the pulse, I need to derive and display the following: -electrical force delivered at present: (Calculated on base of the time difference betwween 2 pulses) -force delivered for the day -total force delivered from the start (installation date) The functions I am looking for: - computing force delivered and counters (daily, total) - adjusting the pulse/kW ratio - driving a 7 Segment LED (High power LEDs visible in daylight) - small control panel for setting the values nice to have: - LED brightness controled by external light intensity and swiched off at night - Ethernet and/or RS485 interface to read out current values and set counters througn the local LAN or RS485 bus. - if there is a power failure the initial value of the counters have to be read/set from an external source. - low current consumption (except LEDs) - isolated input for pulses. - ability to duplicate the values on a seccond remote display (RS485?) I would appreciate any tips a the basic components to use. Price is not (within limits) a primary factor. More important is the functionality and future extensions (Display of date, temperature etc.) The prefered way for me would be a development kit, which contains at least the basic components required. My experience is limited to "decrete components electronics" and commercial programming.
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