giftiger_wunsch
New Member
Haven't mentioned a use because I don't have a use for it yet. I'm new to electronics and it was a cheap kit to demonstrate how infra red transmitters / receivers work; I'm just experimenting with it.
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Could you explain how you calculated these values? I'm somewhat confused about how you arrived at the 47Ω and 470mA values.
Your first stop is "Ohms Law". Google and read. There is probably nothing more important for learning electronics. Ohm Law was used in this thread to determine the likely demise of your components.
Then look at voltage dividers, which are 2 resistor circuits. They will help you apply Ohms law.
blueroomelectronics said:A good starter project might be the popular Joule Thief.