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Romania
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I am using IRremote library to work with infrared i am having trouble implementing a simple IR emitter led . I attached a 270 ohm rezistor to it but when looking at it with my phone camera i see that the led lights up very little when i look at my remote using the camera the led is very powerful. Is the resistor to high or what i am doing wrong ? What i should do in this case ?
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Hofstadter's Law: It always takes longer than you expect, even when you take into account Hofstadter's Law.
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What current is the ir emitter rated at?
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I don't know , how can i find the value ?
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Hofstadter's Law: It always takes longer than you expect, even when you take into account Hofstadter's Law.
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If you know its type number, search for its daasheet on the web. It will almost certainly take 20ma so you could decrease the resistor to 150 ohms.
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Ir leds may draw more current that visible light leds. I have a couple of ir leds that are rated for 100mA. I use 39R 0.6W resistors with them. If you know the part number of your leds, you really should try to find the datasheet and check the ratings.
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I don't know how to find a data sheet because there is no inscription over the led but i decreased the resistor value up to 170 ohms and now it works fine . Thanks for your replys
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