Hey, I would like to ask if there is a way to extend the COM ( onboard led ) as an external led ( blue or any other color ), If so how would I do that.
Currently I do run this board alongside with an IR reciever. Though once this board will be in a case I'd like to move the led alongside the case. I do know that I could attach it to another GPIO and signal out an inbound communication though is that the only way?
I am using the IRremoteESP8266 library.
The onboard led is connected between D4 (GPIO2) and 3.3V with a 1K series resistor. I'm not sure what the forward voltage of the onboard led is, but blue LEDs are often 3.0~3.2V, in which case less than 0.3mA is flowing. Given that, I'm surprised how bright they are! Perhaps because the low current, the forward voltage is a little less and the current is a little more than that. But you should be able to add another led to D4 in a similar way. I seem to remember most esp pins can sink up to 12mA.
I tried, and the LED ( 1.2k res on blue Led ) is lit all the time, but does react accordingly - why though?
Read what I put more carefully. I suspect you connected your led+resistor between D4 & ground?
Well, indeed
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