![]() ![]() ![]() If you have an original Arduino board with the right serial to USB chip and there are no problems with the USB cable or the USB slot, then the last thing at fault could be the driver. In this case, your Arduino board would not turn on, and you won’t see the usual LED blinking on the board, which, under normal circumstances, blinks when the Arduino board is powered on. If you’re living with pets inside your house, the chances are that they might have chewed on your connector cable, and that is why your Arduino board is not recognized by your PC because it is simply not connected. Similarly, the USB 2.0 connector cable might be at fault. Have you checked your PC/laptop’s USB slot that you are using to connect the Arduino? Is the USB slot working correctly? It might be possible that your computer’s USB slot is the culprit behind this problem. Having any of these problems means that your Arduino will not be able to send or receive signals to/from your PC therefore, your computer fails to recognize the faulty Arduino board. It might be possible that you have a genuine Arduino board with the right type of serial to USB chip and the proper drivers installed, but your Arduino may be damaged or has a fried/faulty serial to a USB chip. Your Arduino might look like it is original, but it’s possible that the FTDI chip mounted on it is counterfeit, which is why your computer is not recognizing it. ![]() This chip is called a serial to USB chip, which means that it serves as a gateway between the Arduino board and your computer. Usually, Arduino boards come with an FTDI chip, which helps them to communicate with the PC/laptop. Reason #2: Counterfeit Serial to USB Chip Hence, the PC/laptop fails to recognize these cheap Arduino boards. What’s the reason? Well, as these boards are not original, they’re not accompanied by the original drivers which are installed on your computer when you plug in the board. Still, the downside of buying these boards is that most of the time, they’re not recognized by your computer. There are many fake Arduino boards available in the market, which cost about one fifth the price of the original one (including shipping charges). These are the 5 most common reason why your computer isn’t recognizing your Arduino: Reason #1: Your Arduino Board is Fake There can be several reasons why your computer has failed to recognize the Arduino board. Why Is My Computer Not Recognizing My Arduino Board? ![]() You’ll see one of the COM ports mentioned along with the name of your Arduino board like shown below. You can check this in your PC by clicking on the “Tools” tab in the Arduino IDE and then hovering over the “Port” tab. Typically what happens is, when you plug in your Arduino’s USB cable into your PC’s USB port, you can see which Arduino board is connected through one of the COM ports (e.g., COM4, COM6, etc.) in the Arduino IDE. Whether you’re a beginner or an advanced programmer, you will or may have encountered this error at least once. The Arduino “not recognized” error is one of the most common types of errors faced by its users. What Is the Arduino “Not Recognized” Error? Troubleshooting “not recognized” Arduino can be a bit of a daunting task since these errors can pop up for several reasons I explain below so you can get rid of the “not recognized” error and finally start with your project. If your Arduino is “not recognized,” How to troubleshoot it? You can troubleshoot Arduino by following these steps: So, I had to learn How to troubleshoot a “not recognized” Arduino. I was so excited to get my hands on my first Arduino that ended up buying a fake version that my PC could not even recognize. ![]()
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