Arduino UNO Question ??

Hi Sarah,

Do any of the LEDs on the Arduino light up? When you go to "Tools" on the Arduino IDE and click on Port do you get a list of choices? Have you tried other COM choices? There should not be any components on the board that you can get a shock from. At 5 volts max this is below skin sense level, unless you have an open cut in your skin. If you are getting a shock it may be static and coming from your body to the board. If this is the case you may have damaged the board with the static. See if someone you know have another arduino that you can try to rule out your computer and cable as the source of the problem. If the other arduino works and yours doesn't then it is probably damaged. The only easy fix to a damaged board is to try replacing the Micro Processor chip. If you decide to try this, make sure you get a chip with the bootloader pre-installed.

John

John, I saw that with the last ide bootloader uploads in seconds on any AVR328p... I appreciated this aspect

Hi Enrico,

That is very good to know. I just downloaded the latest IDE but I have not taken the time to explore it yet. Boy am I every going to miss the old procedure to install the bootloader (sarcastic).

John

Hi,

frankly I had to put a bootloader on avr328p and simply from the menu I put upload the bootloader

That's all. Just a couple of weeks ago.

Reply II

I took a look to the lab desk ... Ehm ... it's me coming crazy ! I forgot a detail, I have an original AVR programmer from Atmel that I use when I write firmware without the bootloader It's simple because I have connected the programmer to the ISP connector and pressed a button.

But... when I was without this tool I have simply put a clock and a couple of capacitors on a breadboard, connected the arduino as bootloader to the chip on the breadboard and the result was the same, just a minute. If it sounds useful I have already the scheme. Should only search where it is.

Reply II

I took a look to the lab desk ... Ehm ... it's me coming crazy ! I forgot a detail, I have an original AVR programmer from Atmel that I use when I write firmware without the bootloader It's simple because I have connected the programmer to the ISP connector and pressed a button.

But... when I was without this tool I have simply put a clock and a couple of capacitors on a breadboard, connected the arduino as bootloader to the chip on the breadboard and the result was the same, just a minute. If it sounds useful I have already the scheme. Should only search where it is.