Arduino Double Check Connection and Try Again
avrdude: stk500_recv(): programmer is non responding
avrdude: stk500_getsync() attempt 1 of ten: not in sync: resp=0x00
Is this some kind of joke? Who is AVR Dude, and what does he take against me trying to upload a sketch to my Arduino? If you're getting this fault when trying to upload code to your Arduino board – information technology can be REALLY frustrating!
I wish I could say this happens because of 1 single problem – but this fault pops up for many reasons… In this lesson nosotros are going to go through a "laundry list" of possible solutions. We'll start at the well-nigh mutual and easiest, and move on to more detailed troubleshooting tasks if those don't work.
By the end of this lesson, AVR Dude should be hit the road, and your lawmaking volition be loading on your Arduino board.
Subscribe to our YouTube channel to go more videos similar this. Are you learning Arduino programming? Bank check out our membership plan to larn the software and hardware skills you'll need to build your ain projects. So who is this avrdude anyway? Well, avrdude is a utility that stands for AVR Download Uploader and when you become this error, it's caused by a generic connectedness error between your computer and the Arduino and information technology can outcome from many dissimilar things. When you encounter this error, it might feel similar you've got some programming ghost living within your Arduino IDE. But actually, it's just basically telling you hey, something is non correct when I'm trying to upload code to your Arduino board. And then let's jump in to our listing of easy things that might be able to set up this error. All right, the first one, simply disconnect and reconnect the USB cable that you're using so try uploading again. If that doesn't piece of work, endeavour pressing the reset push button on your Arduino board. Then try the upload over again. Okay, if this still isn't working, try to restarting your Arduino IDE and then see if you tin can upload. All right, are you still getting the error? No worries, brand certain that y'all accept the correct board selected. Then you wanna go to Tools, Board and make sure that the lath in that location's the actual ane that you're trying to upload your code to. Okay, and then yous know you have the right board selected but you're still getting the fault. Okay, so yous've checked the USB cable, you tried resetting the board, you've restarted the Arduino IDE, you made certain that you had the correct lath selected but yous're still getting the avrdude fault. Now it's time to make sure that you've got the right port selected. So to find the port, you go to Tools, Serial Port and y'all select the port. Now, if you don't know which ane is the correct port, here's a quick way to figure that out. So look at that port listing. And then disconnect the USB cablevision, get to Tools, Serial Port, and then see which ports are listed. It could exist com4, com5, something forth that line if you're on a PC or USB something if you're on a Mac. Then reconnect the USB cablevision. Now go back to Tools, Series Port and encounter which port has appeared that wasn't in that location before. So that'south gonna be the port that your Arduino's using. Select that port and endeavour uploading once more. At present, if you're all the same getting the avrdude error, here's the final like shooting fish in a barrel thing you can endeavour. Make sure that digital pins cypher and ane do non take any parts connected, including any shields. These are the transmit and receive pins on almost Arduino boards and if you accept something continued there, information technology tin can interfere with uploading code to your Arduino board. Now, if you take tried all of these steps and avrdude is still giving y'all trouble, it's time for us to start doing some troubleshooting. What we're gonna try to practice is isolate the issue by replacing things. The trouble could be with the computer you lot're using, the problem could be with the Arduino board you're using. Or the problem might be with the USB cable that y'all're using. Permit's get-go with the USB cable. Only switch it out with another one. Now, y'all might exist like really? The USB cable? How likely is that? Well, you might be surprised how often these things fail. And past trying a different one, yous know that you lot'll take ruled that out. So allow's say information technology'due south not the USB cable. Now what you'll wanna do is check if the issue is with the computer. If you have some other Arduino board handy, attempt uploading a sketch to that other Arduino board. If you're able to upload a sketch, that tells you lot that the first Arduino board you lot tried may accept the issue. Or if you lot have some other computer handy with your Arduino IDE installed on it, endeavour taking the Arduino board that wouldn't upload the sketch and try uploading a sketch using that other computer. If you're able to upload a sketch, that might tell you the estimator'southward giving you the trouble. So if y'all determine that the issue is with the computer, first effort reinstalling the Arduino IDE. Brand certain to run through all those checks that we had at the commencement, all those piece of cake steps. If y'all're still getting the avrdude error, so try reinstalling the drivers. At present, if the issue was with the specific Arduino board, it gets a picayune more difficult. If you have an Arduino lath where the microcontroller can come out of the board, like an Arduino Uno, for example, make sure that that microcontroller is seated correctly. If that doesn't gear up the fault, you may need to fire the bootloader back onto the microcontroller. Now, that'south beyond the scope of this lesson simply I'll brand sure to have a link in the clarification for you to learn how to practise that. Simply if those aren't working, it could be that your Arduino lath has been bricked. That is information technology's just not gonna work anymore, which is unfortunate but I definitely recommend trying all the troubleshooting steps a couple more times before you give up. Well, I hope one of these helped solve your trouble and avrdude has left yous alone. We'll just run through those like shooting fish in a barrel tips again one more time. Y'all wanna try disconnecting and reconnecting your USB cable. You lot tin can effort pressing the reset button. Yous can endeavor restarting the Arduino IDE. Y'all wanna double check that yous've got the correct board selected in the Arduino IDE. You lot wanna brand sure that you lot have the right port selected. And you wanna brand sure digital pins zero or i, the receive and transmit pins, don't take annihilation connected to them, including whatever shields. Well, hey, I promise yous have a fantastic mean solar day. Thanks a ton for watching and I wait forward to seeing you next time. Goodbye. (lively music)
And then who is this AVR dude and what is avrdude: stk500_recv() error?
AVRDude is a utility used by the Arduino IDE. It stands for AVR Downloader Uploader and it allows you to load your code onto your Arduino board. The avrdude: stk500_recv() error is caused by a generic connection error between your figurer and the Arduino, and tin result from many dissimilar issues.
Many thanks to "The Guy with The Lid" from the Arduino Stack Exchange for compiling a great list of fixes that we'll walk through in detail here. And then let'southward commencement with our laundry list…
Potential Fixes
- Try disconnecting and reconnecting the USB cablevision. Yes – that simple!
- Your Arduino lath should have a reset push on it. Printing the reset push and see if you lot can upload without the avrdude: stk500_recv() error.
- Shut the Arduino IDE, and reopen it over again – believe information technology or not, this tin piece of work!
- Make sure you have the right Arduino board selected. In the Arduino IDE, go to Tools -> Board, and from the lists select the Arduino board you lot are using.
- Check to make sure yous take the correct port selected. In the Arduino IDE, go to Tools -> Port and select the port corresponding to your board. (On a PC information technology will get-go with COM, on a MAC it should starting time with cu.usb)
- If you're not certain which is the right port, simply take note of all the ports listed, disconnect your Arduino board from the USB cable, and then cheque the port carte once again. Whichever port is missing, is the port your lath was Arduino was using.
- The Receive (RX) and Transmit (TX) pins on the Arduino (pins 0 and i) are used when uploading sketches on your Arduino board. If you have any connections to those pins, pull them out before you upload to the board.
- If you accept an Arduino shield attached to your Arduino board, remove the shield and try uploading again. This is related to the last pace, as the shield may take a excursion interfering with the transmit and receive pins.
Still getting avrdude: stk500_recv() error?
Fourth dimension to start troubleshooting! If none of the like shooting fish in a barrel stuff works fret! Nosotros withal accept some options to try! What we'll practice is try to figure out the point of failure.
It could exist the Arduino Lath, the calculator, or the USB cable.
Examination the USB Cable
Try using a different USB cablevision and see if you can upload without the avrdude: stk500_recv() error. I know this seems like an unlikely failure point, but you lot might be surprised how often USB cables fail.
Test some other Arduino Board
If you accept another Arduino lath handy, effort uploading a sketch to information technology. If you get the avrdude: stk500_recv() fault again, and then chances are the issue is with the computer (meet Issue with Estimator below).
If you are able to upload a sketch to this other Arduino board fine, and so it may be the first Arduino board that is giving you the event (meet Issue with Arduino below).
Test a different Calculator
If you lot have another calculator with the Arduino IDE loaded on it, attempt using that computer to upload a sketch to the Arduino lath. Make sure you are trying all the troubleshooting steps higher up start if you get the avrdude: stk500_recv() mistake!
If y'all are able to upload to the Arduino, and then the issue is likely with the other computer. (see Result with Calculator below).
If you get the fault on this other calculator, then the issue is likely with the Arduino board (see Event with Arduino below).
Issue with Computer
Reinstall the Arduino IDE
If yous find that the effect is with your computer, try reinstalling the Arduino IDE. Information technology'southward really non that hard. Simply become to the Arduino website, download the about recent version of the IDE and install it over again. This doesn't touch your quondam sketches, which are stored in your sketchbook folder.
Reinstall Drivers
If you lot are nonetheless getting the avrdude: stk500_recv() error, yous can cheque that you accept all the drivers installed correctly. These should be installed automatically when yous install the Arduino IDE, but you can always try installing them manually. As well, if you lot have an Arduino clone, sometimes those require special drivers (check the company that makes the boards for where you lot might find them).
Issue with Arduino:
This is where things go a little dicey. It may exist that your Arduino board is bricked (which is electronics speak for broken in a manner that does non allow fixing).
Bank check microcontroller seated properly
If y'all take an Arduino board that has a removable microcontroller chip, like the Arduino UNO, you tin bank check to meet if it is seated properly on the circuit board.
Perhaps it'due south the Bootloader
Information technology may be that the bootloader (a programme on the microcontroller that allows your sketches to run) is having an issue. You could fire a new bootloader on the microcontroller.
Accept a spare microcontroller?
If the failed lath in question is an Arduino with a removable microcontroller, yous could ever swap out another microcontroller if you have one handy. Y'all'd take to load the microcontroller with the bootloader (see previous stride).
The Boxing Continues
Well – I hope after trying some of these steps yous take finally vanquished the avrdude: stk500_recv() fault.
If not, allow us know in the comments, or if you discover a fix not listed here please let the states know too!
Source: https://www.programmingelectronics.com/avrdude-stk500_recv/
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