I'd like to opearate a Green LED (3.3Vtyp @ 20mA), using a 3.3V digital I/O pin.
The problem is that VF can reach up to 4.1V, but I'm afraid that using a current source will need more components which will make the design more expensive and physically larger.
Have I designed it well?
Thanks!
**broken link removed**
The problem is that VF can reach up to 4.1V, but I'm afraid that using a current source will need more components which will make the design more expensive and physically larger.
Have I designed it well?
Thanks!
**broken link removed**
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