Feasibility of measuring multiple voltages and comparing to stored data
hi,
as part of project need create tester measures voltage , current given out solar module. use shunt resistor i'll measure shunt voltage , calculate current given afterwards.
ideally, use arduino uno compare measured voltage , shunt voltage expected/acceptable range each. if voltages lie inside respective ranges, green led light up, example - , red led if one/both lie outside acceptable ranges.
i have no electronics experience seems part should feasible.
one possible problem need test various solar modules have different acceptable ranges voltage , current (or shunt voltage).
would possible somehow store different comparison ranges each module , compare measured voltages 1 of these ranges depending on mechanical button technician push, example?? (the technician know test module, needed press button 3, example.)
any or other advice appreciated.
thanks,
chris
as part of project need create tester measures voltage , current given out solar module. use shunt resistor i'll measure shunt voltage , calculate current given afterwards.
ideally, use arduino uno compare measured voltage , shunt voltage expected/acceptable range each. if voltages lie inside respective ranges, green led light up, example - , red led if one/both lie outside acceptable ranges.
i have no electronics experience seems part should feasible.
one possible problem need test various solar modules have different acceptable ranges voltage , current (or shunt voltage).
would possible somehow store different comparison ranges each module , compare measured voltages 1 of these ranges depending on mechanical button technician push, example?? (the technician know test module, needed press button 3, example.)
any or other advice appreciated.
thanks,
chris
hi chris
yes, possible. your program detect switch has been closed , use relevant min / max values.
are planning use analog digital converter (adc) built arduino? it has input range of 0 +5v resolution of 5mv. what voltages expecting module , shunt resistor? you may need scale values down (or up) , should think overvoltage protection.
regards
ray
quote
ideally, use arduino uno compare measured voltage , shunt voltage expected/acceptable range each. if voltages lie inside respective ranges, green led light up, example - , red led if one/both lie outside acceptable ranges.
quote
would possible somehow store different comparison ranges each module , compare measured voltages 1 of these ranges depending on mechanical button technician push, example?? (the technician know test module, needed press button 3, example.)
yes, possible. your program detect switch has been closed , use relevant min / max values.
quote
as part of project need create tester measures voltage , current given out solar module. use shunt resistor i'll measure shunt voltage , calculate current given afterwards.
are planning use analog digital converter (adc) built arduino? it has input range of 0 +5v resolution of 5mv. what voltages expecting module , shunt resistor? you may need scale values down (or up) , should think overvoltage protection.
regards
ray
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