This is the first time I ever used (an touched) Arduinos, so much of what I read online I could not understand.
A couple of days ago, I decided to make my own Dactyl Manuform keyboard using two Arduino Micro Pros. I followed the instructions and when it came to connecting my masterpiece to the computer, I noticed that each Arduino gives off different lights - one is red, and the other one is green. It does not change colours when I connect the other Arduino directly to my computer - still, the lights remain unchanged. I also noticed that my Arduinos were not recognised by the QMK Toolbox and every time I connected the devices (together or individually), a window popped up on my screen, saying that a new device was being installed. I pressed on it, and it showed me Arduino Leopardos in the list of Bluetooth and other devices.
Arduino micro clones don't always have the same colour LEDs, the clone manufacturers will use whatever colour LEDs they have available at the time of manufacture. These LEDs can't change colour. It's probably nothing to worry about. Just think of it as an interesting feature!
This is also nothing to worry about. Leonardo and Pro Micro use the same chip (atmega32u4) and so are identical from your computer's viewpoint.
One more thing here. I launched the serial plotter on Arduino IDE. I connected one of the keyboards with a red light to my computer and a new LED it started blinking with the upper one still red. I noticed that the serial plotter window is empty (maybe because I didn't code anything, but honestly I don't know). I also connected the second keyboard with a green light and it also started blinking red light, but the green one is still lit.
Here are some photos, including of the QMK Toolbox.
If there is a power led on the Pro Micro, then you can remove it. The RX and TX leds can be turned off.
The Serial Plotter needs numbers, divided by comma's and end-of-lines.
If the code in the Pro Micro sends messages over Serial, then you can open the Serial Monitor.
Do you have a multimeter ? Check the 5V of both Pro Micro boards.
I also use them as "Leonardo" boards. The Pro Micro is not an official Arduino board, but it can be used as a slimmed-down Leonardo board.
That's a 2 hour long video. Forum members will not want to study that.
How is your project and Arduino project, other than that you are using Arduino Pro Micro? I'm not sure the Pro Micro are being used as Arduinos in this case?
I believe there is some kind of connection or driver issue here. Both LED are lit (one is original Arduino and another one is a fake one, I guess). There is a connection established between the keyboards as shown in the video and the link here: GitHub - abstracthat/dactyl-manuform. Everything was checked from the connection point of view, the soldering is fine, and the electricity flows normally. The only issue is that my QMK Toolbox that directly loads the keyboard layout into Arduino (or Arduinos I have no clue about it), does not recognise none of them, even though Arduino IDE shows both of the modules.
Is there a driver issue or something like that? How can I correctly install these two guys here? I live on the other side of the globe in Eastern Europe and it took me 2 months to get the keyboard shell and +1 months to get the Arduino modules. I started to love the keyboard before I even first touched it, so getting it work is something I have been awaiting the last 3 months or more.
I am veeeery much looking forward to getting any help that will start the keyboard after so long.
I'm sorry to hear about your problems, but, despite the fact that you are using 2x Arduino Pro Micro, this is not an Arduino project. The Arduino are not used as Arduino in this project. There is no Arduino code and the page you linked to does not appear to use the Arduino IDE.
If there were problems with the circuit, perhaps forum members here could help, but your problems seem to relate to non-Arduino software and firmware, and it is likely that no-one on this forum will be familiar with that.
Perhaps there is a forum dedicated to this software & firmware? That might be a better place to seek help.
Your topic has been moved to a more suitable location on the forum. Installation and Troubleshooting is not for problems with (nor for advice on) your project See About the Installation & Troubleshooting category.
See