Hi Bill @billinfl, Well done for your achievements! I totally agree, you need to get the basic digits 0-9 working, before moving on. I no...

Hi @josiah430, That little yellow triangle in the Device Manager is definitely saying this is a problem. And this is a case where Google is probabl...

Hi Ron @zander, Obviously, in the commercial world, there are lots of manufacturers making products that can have lethal consequences if they fail...

Hi Ron @zander, The board I had to decipher was covered in thick black solder resist, making visual tracking of traces impossible. Hence, I use...

Hi Ron @zander, I mentioned the possibility that someone might have a 'fake', not as a 'professional' point of quality, legality, etc. but simply,...

Hi Ron @zander, Re I don't know how many members have microscopes to do as you suggest, I don't have a microscope, nor did I suggest one. I...

Hi Ron @zander, Show us the back but if you can see it says Arduino, you have your answer. Yes, but be careful to think what question you are ...

Hi @j526, I am not surprised you decided it was impractical ... I thought it looked a very tough, and possibly expensive, project, but I pointed ...

Hi @josiah430, Sorry, I have not followed, nor do I have any Nano boards, so I am not the right person to identify a particular version. In your...

Hi Ron @zander, Good luck with your investigation. Remember with buses, and indeed any digital signals, there is not just 'one' decision voltage, bu...

Hi @josiah430, Sorry, I don't know how to equate "first Arduino Nano" to a particular version, but Google suggested a possible source of schematic ...

Hi Ron @zander, @davee The OP has at least attempted the test I suggested. Although using a VOM is not ideal, he did have the guts to believe the ...

Hi @allocsb and Ron @zander, Thanks to both of you, for your interest, contributions and patience. From the table above, my understanding is ...

Hi Ron @zander, @davee @allocsb I looked at the datasheet I think you provided. I read most of it including the power section. 5V goes into an LDO...

Hi Ron @zander, RE According to the library author there is no danger to the Pi by using the Pi 5V pin, it is just as not sufficient as the 3.3V...