I am new To Arduino and sometimes I have noticed that with No code Uploaded and Not connected anything to Arduino, When I touch its ICSP pin at the right side of Arduino Board its LED at pin 13 Glows and slowly Goes Off. It happens only when I do not upload code to PIN 13.
So, I want to know that it is common to all the boards or it is something wrong in my board. But till now I do not noticed any error on the board while uploading and running the code.
Thank You!
No code, how do you know?
Anyway, it is possible behavior. If the MCU is in initial state the all pins are in high impedance state (almost like disconnected), then the OA which drives L LED has its input opened and is susceptible to oscillation. This can be observed like L glows or slowly goes on/off. It can be spontaneous or forced by touching, powering, etc.
Thanks for reply!
I want to say that L led only glows on touching when I do not upload code to digital pin 13 being HIGH or LOW...
By the Way Thanks For informing me !
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