I killed my Nano...(and ahem...Redboard...)

Projects Programming
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Greetings,

So I was doing really basic breadboarding trying to get the onboard pin 13 to blink an external led AND resistor with my Redboard, and somehow I killed it. No tiny red lights on the board at all. Since that went so well, I did the same to my Nano. The Nano was doing the BLINK program and I was sticking in jumper wires to the breadboard and a resistor and an led and GND on the Nano...and then... lights out (but not in the Formula 1 way...). I know no one can tell me exactly what I did, but a few "dont ever do..." ideas would be great.

The as yet unboxed Nanos on my work bench thank you in advance.
LLOYD

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Always disconnect the power when making wiring changes

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Use some form of colour coding with your wires - eg black for all 0v.

I use a power supply with a current limit and ammeter and my first switch is with it turned right down

Be neat and logical how you lay out your breadboard

Brush up on your electrics/electronics and dont be tempted to “ try something “ to see what happens , understand what you are doing .

I also use a piece of scrap ply to mount my breadboard and Arduino for prototyping to keep the circuit “ stable “ and stop wires from being pulled out

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Example - CANBUS project .

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Word. Or words to live by.

It may be tempting to assume that adding and deleting wires and components will go to plan.

Many things you'd do would be okay, and you might think that if an LED was on a toggle switch and you opened and closed the switch it would be no different than just yanking the LED off the breadboad, or sticking one on back in there. And so forth.

Except stuff happens, like you inadvertently briefly manage to connect some things that should ought not to be… or you miscalculate or under-analyse or whatever and doing that thing was, in fact, inherently a Bad Idea. Things can happen very very fast.

Do not ask me how I know this.

a7

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Thanks for all the GREAT responses with real world practical ideas I can use. Def will de power etc.

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