Hello everyone. I am not an expert in arduino. How can I display sensor values without opening serial monitor, but in my desktop, like gadgets in desktop such as the clock gadget or galery gadget Windows 7 used to have. So that everytime I boot my computer up the sensor display starts automatically.
You have to have a suitable program running on your PC that collects the data from your Arduino. Writing a PC program is beyond the scope of this Forum.
This simple Python - Arduino demo
should give you the general idea about the PC-Arduino communication. You should be able to replace the Python code with equivalent functionality in any other programming language.
...R