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I think it's 5V tolerant but you won't get any useful readings from it at 5V.

You shouldn't need to worry about AREF. The AREF pin is usually connected to the same power supply that you are using to power the device so that the onboard A/D converter has the same frame of reference as the device that's generating the analog signals. If you have a Rev B board and you're powering the device from a Netduino 3.3V pin you shouldn't need to connect the AREF at all because the Netduino has an internal AREF that is on by default. If you have an earlier board then you should also connect the 3.3V line to the AREF.

Thanks for the explanation!

Hello, newbie here, What is the difference between the internal and external AREF, I want to avoid damaging my new netduino! Thanks!

I am new to electronics also. From what I have read, the analog input can only accept up to 3.3v (5v would be bad?). So if I connect a temp sensor to analog, should I use the 3.3v connection on the same side as the analog input, or use the AREF on the digital io side? Thanks!

Hi Terry,

Correct. Generally, you'll just want to use the _other_ COM port in your code. You can use both--but then you'll lose the ability to debug.

To erase your current app (so you can deploy something new):
1. Apply 3.3VDC-12VDC power to the "DTR" pin (pin 3).
2. Power off your Netduino Mini and then repower it.
3. Press "PING" in MFDeploy. Then press "ERASE" to erase your current app.
4. Power off your Netduino Mini again and then repower it.
5. You should be good to go.

Chris

What do you mean by "the _other_ COM port". Does this mean by using either serial ports I have to reset the module to upload new code?

I'm new to these devices, trying to clarify before I make a purchase.

Thanks!