I bought my Arduino Uno R3 a few months ago. It's been working like a charm since then, but today, it stopped interfacing with my computer. Let me be more specific. I have a 2013 Macbook Pro Retina with OS X 10.9 (Mavericks). It has the latest Arduino IDE installed.
I was using it today and after uploading a simple sketch (it worked for a little while) my Mac stopped recognizing it, and since, I haven't been able to access it. The LED connected to Pin 13 stays on 100% of the time. The RX/TX LEDs don't flash, but the main functions of my sketch (other than the serial functions).
Have I screwed my Arduino's Serial chip? What can I do? I am only 15, so another $30 is a little bit too much to spend to get another one.... :)
Thanks!!
UPDATE: I forgot to mention that I have tried my other Windows computer, and another cable, just to rule out those possibilities.
That is a very common issue with Arduino. I used to face that problem all the time while using Arduino. Though I never really found a solution for this, the problem did go away after sometime. Did you try resetting the uC using the reset button on the board, or restarting the IDE or your system if neither worked?
Make sure you have chosen the right COM port. On a windows system you can do this by going to device manager and look for the ports tab under it.
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I've been using a STM32H753I-EVAL2 board for several months now.
Last week I was suddenly not able to connect to the board anymore (tried with several tools: GDB, STM32cubeProgrammer, always same message like "STLink error"). I of course checked the driver was correctly installed and was the right one, reinstalled it, changed USB cable and ports. Also tried to connect to a Nucleo which was fine.
I randomly tried to change the power supply of the board from PSU (ie. powering through external power supply) to STLink (powering through USB) and it solved the issue. I was happy as I thought it was just a hardware issue like a conflict between both power supplies.
But today the board was not connecting anymore again. So I switched back the alim to PSU and it worked !
Did someone experience the same issue ? Or does it trigger something for someone ?
I'm using an Arduino Leonardo. It worked very well the last time, but now my Computer (Win 10) doesn't recognize it anymore. (I used Win 10 before too).
After pressing the "reset-button" it works for a few seconds, but after that it's gone again.
Do you have any ideas, how I can solve this problem?
Reinstall the Leonardo driver.
change the usb wire.
if it is not worke then the boot loader got corrupted.
check the link bellow
https://www.arduino.cc/en/Tutorial/ArduinoISP
I am developing on an ARM Mbed board which connects to my Windows laptop over USB. I've just moved to a new Dell laptop running Win 10 [from a Dell laptop running Win 7] and I find that the laptop resets my development board every 15 minutes.
There are two things that will cause the ARM Mbed board to reset:
powering down/up the USB connection
sending "break" via the USB serial driver.
When the reset occurs there is nothing of note in the Windows event logs. I have all of the "allow Windows to power me down" boxes unticked on the USB hubs in System devices and in the Control Panel power management options.
Does anyone have any suggestions on how I (a) debug what's going on or (b) fix/workaround the problem? I've not yet tried connecting via a powered USB hub, will do that next...
I had the same issue using a FRDM-K64F running mBed and communicating over a USB COM port to a Windows 7 Dell machine. The communication would sometimes drop out. As #Rob suggested, uninstalling the Dell Support Assist Agent completely fixed the issue.
Just adding this answer as it was very difficult to find any information using google.
Another note in support of this solution for google...
I have a Dell 5480 running Windows 10, and started using from ST Nucleo boards on it. I've used the exact same boards at work, with no problems. Every 15minutes or so the board was reset.
I tried disabling the Dell Support Assist services but this did not seem to fix the problem.
Removing the programs did make the Nucleo work.
I am experiencing lot of troubles detecting BLE devices with a CSR8510 chipset. I don't have much knowledge in bluetooth hardware/stack and osx systems. I made a lot of research to solve my problem but I can't find any information specifically related to my issue.
Here is all the informations about my setup :
The dongle is plugged in a Macbook Pro late 2011 (mavericks). I made all the necessary to make the dongle work :
HCI bootmode
com.apple.bluetooth.plist deletion and reboot
I used Bluetooth Explorer to change the Host Controller (default internal chipset -> CSR8510)
Now the dongle is fully recognized by the system, I can use my Magic Mouse (all functionalities work), but I am not able to detect my BLE chest belt (Runalizer blue).
When I launch a scan with the Device>Low Energy Devices panel in Bluetooth Explorer or the demo app indicated by the belt manufacturer I don't find anything.
Demo app : https://developer.apple.com/library/mac/samplecode/HeartRateMonitor/Introduction/Intro.html
To be fully exhaustive my Xperia SP works perfectly with the belt.
I tried to dig into kernel extensions and I've found in System/Library/IOBluetoothFamily.kext/PlugIns two interesting kext :
CSRBluetoothHostControllerUSBTransport.kextCSRHIDTransitionDriver
I do not know if it is relevant or if it could help me but since they start by "CSR" I thaught that it may be related.
I hope someone can help me. It is bothering me so much because I am not able to do the job I was willing to do (gather data from the belt and statistical processing).
Thanks for your attention.
I recently acquired a Bluetooth headset (Philips SHB9100) for my smartphone, but also wanted to use it with my Windows 7 PC, so I bought a cheap USB Bluetooth adapter without noticing it was a v2.0 adapter, while the headset is v2.1 + EDR.
The USB Adapter installed correctly on Windows 7, and I am able to discover my headset, but when they try to pair, an ugly Error 0x80004005 appears, never asking me for a PIN.
After some googling, and founding many people had this pairing problem, I read that the major improvement in Bluetooth v2.1 is SSP, which permits pairing without the need to enter a PIN, and also that Windows 7 chooses the "best pairing mechanism" automatically. And so I started to suspect that this is what's happening:
Windows discovers a SSP capable device.
Windows tries to pair with that device using SSP.
The USB Adapter, being v2.0, is unable to permit pairing with the headset via SSP.
Windows does it's best showing a 0x80004005 error.
I searched for a v2.1 or superior USB Bluetooth Adapter in my city but couldn't find any (I'm from La Plata, Argentina) and even though I think I'll end buying one, I'd like to make this work, or at least know for sure why the devices aren't pairing.
And so my question is (and I swear I did some more googling before asking here):
Can I force Windows to try a legacy pairing with my headset?
Any info on the subject is welcome.
Thanks!
I recently faced a similar issue and after a lot of trial and error together with research, I finally fint a compatible driver. I downloaded a few drivers from the intel site and tried it with each one of them. Finally I was able to fix my issues with the driver below.
https://communities.intel.com/thread/103579
https://downloadcenter.intel.com/download/26191
This link can also help with the issue, worth sharing.
https://superuser.com/questions/471767/bluetooth-headset-pairs-and-appears-in-sound-devices-but-shows-as-disconnected