I'm currently studying IoT and trying to connect my Arduino to my laptop, but the Arduino app shows "arduino R4 wifi [not connected]." Despite the blinking lights on the Arduino, it doesn't seem to connect properly. I noticed that while others have the Ports (COM/LPT) driver installed, mine is missing. I tried to add a legacy hardware driver through the Device Manager using the following steps:
1. Selected "Install the hardware that I manually select from a list."
2. Chose Ports (COM & LPT) and continued.
3. Selected Communications Port and finished the setup.
Now, the COM Port shows up but has a yellow exclamation mark next to it, meaning it doesn't work. I've tried disabling, enabling, and restarting multiple times, but my laptop still indicates that COM1 does not exist. Any advice on what I can do?
3 Answers
You might want to install the drivers from FTDIchip’s website, as many serial devices depend on those. Sometimes they can really solve the issue with connectivity.
It sounds like there may be an issue with your drivers or how the USB connection is set up. If you haven't yet, try installing specific drivers from the manufacturer's website for your Arduino. Sometimes, older or cloned boards need extra drivers to get recognized properly.
Thanks for the tip! I'll check out the drivers and see if that helps.
If your Arduino is a genuine one with an ATmega chip, Windows 10/11 should have the drivers preinstalled. If it’s a clone, then you might require drivers for chips like CH340 or CH341. Use a command like `pyserial` in Python to list all COM ports and check if your Arduino is being recognized that way.
I have the genuine product, so that shouldn't be the issue. I'll try using pyserial to see if it shows up.
But Arduino R4 wifi uses a microcontroller that connects via USB directly, right? If there's a problem with the firmware or drivers in the device manager, that could cause issues too.