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In mention of testing IR remotes , I stumbled on a pretty cool trick one day while messing around in my workshop . I had a solar cell from one of those outdoor sunlight rechargeable garden lights and got the idea to hook it to a speaker and aim the remote at it . No amplifier , nothing , just the solar cell and a little 2" PM speaker farmed out of a dead transistor radio . Every different button gave a different tone in the speaker and there were variations in both pitch and duration of the tones with the different buttons i'd push . A cool experiment and I kept the solar cell and speaker together as a "quick & dirty" tester to see if a remote is working or not .
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12-17-2015, 07:49 PM
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