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if I buy a new arduino which safety I have to maintain during experiments and by the way can I know your name please if you are agree to tell me


Most measures to keep your board alive mean a clean and clear work area with no metallic items too close to the board.

Read the specifications for your board and try to understand them as best you can and if in doubt ASK as it is better to be safe than sorry.

Understand the difference between positive and negative is a major MUST.

There are so many things to learn as a new user that the Arduino book is a very useful guide to getting started.
It is even available free as a PDF file for download and takes you through most of the basics.

Start there. Its quite easy and you can always ask about parts you dont understand.

It may not be the answer you were looking for but its the one I am giving based on either experience, educated guess, google or the fact that you gave nothing to go with in the first place so I used my wonky crystal ball.


Jan 22, 2018, 06:31 pm Last Edit: Jan 22, 2018, 06:35 pm by DrAzzy
if I buy a new arduino which safety I have to maintain during experiments and by the way can I know your name please if you are agree to tell me
Do not apply a voltage higher than Vcc (5v on Uno, 3.3v on some other boards, see board docs) or lower than ground to any pin. Do not attempt to power motors or other large inductive loads off the 5v from the Arduino - these need a separate power supply. Do not connect an external voltage to the 5v pin when Arduino is plugged into USB (to use a 5v external power supply, use the USB connector - you can use phone chargers and USB cable to power it, and by using the USB connector to supply the power, you are physically prevented from connecting it to USB while it's connected to the external supply). Use the barrel jack if using an external power supply of 6.5v ~12v (note that lower voltages are better for external supply via barrel jack - lets you draw more current without overheating the regulator). Do not apply any external voltage to any pin when the board is not powered. Make sure that your workspace is free of conductive debris.

Also, please read http://forum.arduino.cc/index.php?topic=148850.0; do not hijack unrelated threads.

There is no reason for us to give you our name. We are volunteers with no affiliation to Arduino other than being active users of it - all of our advise is dispensed without any guarantee!
ATtiny core for 841+1634+828 and x313/x4/x5/x61/x7/x8 series Board Manager:
ATtiny breakouts (some assembled), mosfets and awesome prototyping board in my store http://tindie.com/stores/DrAzzy

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