hello,
i have part 4 different lights in 1 , can choose of 4 lights want lit @ time.
can seen pictured here: http://ab.rockwellautomation.com/push-buttons/specialty/800t-small-pilot-lights
all of lights connected in parallel can choose illuminates supplying power lights want illuminate.
my issue each of bulbs midget flange base bulbs (lamp #328) , require 6v , draw 175ma of current. looks have use transistor circuit 5v pin control them i/o pin cant supply enough current. messing around resistor values in series these lights try , cut down current draw causes of drop light illuminate.
my issue is, not sure how able of lights illuminate @ once. in perfect world, there way them light current i/o pins can see thats not possible. if of them lit 5v pin pulling close 800ma on usb power.
any suggestions?
i have part 4 different lights in 1 , can choose of 4 lights want lit @ time.
can seen pictured here: http://ab.rockwellautomation.com/push-buttons/specialty/800t-small-pilot-lights
all of lights connected in parallel can choose illuminates supplying power lights want illuminate.
my issue each of bulbs midget flange base bulbs (lamp #328) , require 6v , draw 175ma of current. looks have use transistor circuit 5v pin control them i/o pin cant supply enough current. messing around resistor values in series these lights try , cut down current draw causes of drop light illuminate.
my issue is, not sure how able of lights illuminate @ once. in perfect world, there way them light current i/o pins can see thats not possible. if of them lit 5v pin pulling close 800ma on usb power.
any suggestions?
buy wallwart drive them uln2803.
Arduino Forum > Using Arduino > General Electronics > Bulb Question
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