hi, I'm using the SCD-20 solar controller from IVT Gmbh in combination with a 230Ah battery and a photovoltaic panel to power a small server based on an Intel ATOM N270 CPU.
the controller is (will be) connected to the server via RS232 (1200 8n1) and works like this: - if the battery voltage drops below 12V, a warning LED is switched on - if the battery voltage drops below 10.5V, the load (the server) is powered off to prevent exhaustive battery discharge - if the battery voltage raises above 12V, the power to the server is switched back on the info record delivered via RS232 looks like this: <R: current voltage; current power; current temperature; minimum voltage; maximum voltage; minimum power; maximum power; CRLF> from the servers point of view the SCD works similar to an UPS: - if battery voltage is close to 10.5V, perform shutdown - if current power < 0, we are running on battery (power consumption is higher than power generated by the panel) - if current power > 0, the panel produces more energy than needed and also charges the battery questions: - is there already a driver which handles such a device ? - if not, which driver comes closest to this behaviour ? - if none, is anybody willing/able to implement such a driver ? I'm willing to do the implementation, but my c/c++ programming skills are quite rusty ... thanks in advance. _______________________________________________ Nut-upsdev mailing list [email protected] http://lists.alioth.debian.org/mailman/listinfo/nut-upsdev
