I found this online on a resistor calculator but what is the source voltage on the dna200 chip and where are you getting the info from.
Source voltage
diode forward voltage Help
diode forward current (mA) Help
I don't want to use an smd led my plan was to wire a push button led directly to the board . It has 4 pins . 2 for the led pos neg 2 for the fire . I found this diagram that some said they are gonna use and this is how i want it . Is this possible? .
Sorry but im new to the resistors but why are you using a 100 ohm resistor . Can someone explain that in detail . Can you use a smaller ohm or bigger ohm resistor in its place . What are you using to calculate this for the dna 200 chip to know which one to use?