Turning on all the lights

Using Arduino Project Guidance
#1

So far I've been able to turn on 3 of the 4 LEDs that are connected to the nano. Of course the power is always on, the L light is trivial to turn on. Where I started running into trouble was the RX and TX lights.

Setting pins 0 and 1 to high didn't work. I was eventually able to get the TX light to turn on by sending print statements to the serial port every 5 milliseconds. That's 3.

I figured maybe there was a statement similar to print but on the input side of things that would force the RX light to turn on.

Is there ANY way to programmatically turn that light on? I don't care if it's hackish. I just want it to turn on via code. Thank you.

#2

Rx only turns on when signal is received from USB port.
Tx only turns on when signal is sent out from USB port.

#3

But I powered the chip with a usb cable that had its + and - data wires removed so it was ONLY providing voltage. The TX light still turned on. I was sending data using the serial print command but it wasn't really going anywhere. Could I not use the same trickery to make the RX channel poll for data and turn the light on in the process?

#4

The USB Serial adapter is a Slave. It doesn’t poll. It can only send out what the Arduino sends it (Tx light) and send out what the PC sends it (Rx light).
Unless you reprogram it.

#5