We'll be using a new programming language called “processing” to visualize some information from the Arduino on the computer screen. If you are new to processing, they. Pingback: Fix Processing Error Opening Serial Port Port Busy Windows XP, Vista, 7, 8 [Solved]. January 18, 2015 at 2:11. Apr 28, 2014. I resolved the bug by editing ~.arduino/preferances.txt and changing serial.debug_rate=38400 to serial.debug_rate=9600. Error message processing.app.SerialException: Error opening serial port '/dev/ttyACM0'. At processing.app.Serial.(Serial.java:178) at processing.app.Serial.(Serial.java:92). I've picked up an arduino to start working with, and have currently slung together a bit of code to toggle the on-board LED over serial. However, my arduino is on COM6, and if I try to change the port on Processing to anything other than 0, it comes up with an error. Is always my FTDI adaptor, so I open Serial.list()[0].

1. Arduino Processing.app.serialexception Error Opening Serial Port

Here at SparkFun, we refuse to leave ‘good enough’ alone. That’s why we’re adding to our line-up of Arduino-compatible microcontrollers once more! The Pro Micro is similar to the Pro Mini except with an ATmega32U4 on board. The USB transceiver inside the 32U4 allows us to add USB connectivity on-board and do away with bulky external USB interface. This tiny little board does all of the neat-o Arduino tricks that you’re familiar with: 9 channels of 10-bit ADC, 5 PWM pins, 12 DIOs as well as hardware serial connections Rx and Tx. Running at 16MHz and 5V, this board will remind you a lot of your other favorite Arduino-compatible boards but this little guy can go just about anywhere. There is a voltage regulator on board so it can accept voltage up to 12VDC.

If you’re supplying unregulated power to the board, be sure to connect to the “RAW” pin on not VCC. This latest revision corrects the silk error from the last version of the board so that pin 14 is correctly labeled. We’ve also added a PTC fuse and diode protection to the power circuit and corrected the RX and TX LED circuit. Not sure which Arduino or Arduino-compatible board is right for you? Check out our! Timing Issues w/ USB Communication through CDC Interrupts Atmega32u4’s built in CDC driver for USB communication can have timing issues when messing with the watchdog timer, sleep modes, and timer interrupts. I am unsure of how to fix this issue if you continue to use code that interferes with the CDC.

I recommend trying a different method than using the interrupt timers. Wrong Bootloader It’s possible to brick your Pro Micro 5V/16MHz if you used the wrong board selection with the wrong frequency.

If you upload the wrong frequency, the IC will not be able to understand any new code that is being uploaded. It expects to have code that is compiled for another bootloader, instead of using the 16MHz frequency with the oscillator. When either of these cases happens, the device manager is not able to recognize the device and is usually seen as an “unknown device” when the microcontroller runs the sketch. There are ways to recover the an Atmega32U4 (i.e. LilyPad Arduino USB - Atmega32U4 board, FioV3 - Atmega32U4, Pro Micro 5V/16Mhz, Pro Micro - 3.3V/8Mhz, etc) if this happens. Check below for more information: A.) Upload when LilyPad USB with Atmega32U4/Pro Micro/FioV3 is still in Bootloader Mode You can try the double reset method by tapping the RST pin to GND twice (since there is no reset button on the board) as explained in the Troubleshooting sections labeled as Reset to Bootloader and How to Revive a “Bricked” Pro Micro =.

1.) Open the Arduino IDE. 2.) Choose a simple code to upload on the Arduino. I used the blink test code from the hookup guide to upload. 3.) Check your ToolsPort menu for the list of COM ports when the Arduino is connected.

You will probably not see it in the list. 4.) Click somewhere else to stop viewing the list of COM ports. 5.) Ground the RST button 2x as stated in the Troubleshooting and FAQ.

6.) Re-open the ToolsPort menu to view the list of COM ports again to see what the Pro Micro enumerates to when its in its bootloader. There is an 8 second window to view the COM port when the board is in bootloader mode. Note: Feel free to use the device manager at this step. Opening up the device manager on your operating system will help to see when the Arduino pops up and disappears. 7.) Select the COM port that the Pro Micro is on before it disappears again. 8.) Hit the Upload button to compile and upload. 9.) Wait a few seconds for the Arduino IDE to compile code.

The progress bar should be just over the halfway mark. Note: On Windows, this takes about 20 seconds to compile and upload.

The device will show up as “SparkFun Pro Micro (COM##)”. Trying this on a Mac seemed a little faster to compile and upload. 10.) Hit the reset button twice again to place the Pro Micro in bootloader mode while the Arduino IDE is uploading. 11.) If successful, you will have no error messages the Arduino IDE will tell you that it is “Done uploading.” After selecting the correct board definition and timing the double reset method correctly, I was able to upload successfully. It took me a couple of tries before I could get this right because of the timing. You should not need to go through this recovery procedure for subsequent uploads unless you brick the Atmega32U4 again. ————————————————————————————————— B.) Outdated or Corrupt drivers If board is showing up as Arduino Micro (COM##) or Pro Micro (COM##), try the double reset method and updating the drivers while still in bootloader mode: 1.) Use the double reset method while having the device manager open.

2.) When the board entered the bootloader mode, I right-clicked on the Arduino board in the device manager as shown in this screen shot: 3.) I updated the driver for the board. 4.) Once the update was completed, I compiled and uploaded the code. When the uploading status bar was half-way through, I did double reset again and the problem was fixed. ————————————————————————————————— C.) Reinstalling the Bootloader As a last result, you can always try to reinstall the bootloader.

The tutorial is designed for the Arduino Uno, but it should work for Atmega32U4’s bootloaded with Arduino. The idea is the same but the specifics are different. Start by reading the tutorial =. The first thing you are going to need is an AVR programmer. You can use a standard AVR programmer or any Arduino with the ISP code on it (the standard code will not work with the Leonardo). You will then need to connect it to the target device (i.e. LilyPad Arduino USB, Pro Micro, Fio V3, Makey Makey, or Leonardo) to reflash the bootloader.

Don’t worry about the fuse bits or even the avrdude commands (they’re great, if you are installing third party stuff, but this will work just fine). 1.): Get a programmer This you can do by following the directions in the tutorial.

2): Connect the programmer/Arduino as ISP to the Target Device You will need to connect to the same pins to your target device (i.e. LilyPad Arduino - USB, Pro Micro, Fio V3, Makey Makey, or Leonardo). On the Leonardo you can connect it just like the Uno.

The LilyPad Arduino - USB has small ICSP pins. I managed to solder wires directly to the pins for access. The Pro Micro does not have an ISP header and the pin numbers are different. Check the tutorial for location of the pins on the programmer.

Here are the pins for the Pro Micro Board: ICSP Pins Pro Micro Pin GND GND RST RST VCC VCC MISO D14 SCK D15 MOSI D16 Note: There is a silkscreen error and D17 is labeled D14 on the Pro Micro. 3.) Program Using Arduino v1.6+ go under Tools and select the correct programmer (if your programmer uses a COM port select that too), and the correct board (LilyPad Arduino - USB, Pro Micro, FioV3, Makey Makey, or Leonardo). Then select Burn Bootloader.

For the Pro Micro, this will use the bootloader in the addon file, so make sure you have the correct addon file installed. You can find the latest board definitions from the SparkFun GitHub Repository. There is some problem with USB serial! I have Arduino IDE v1.6.5 and trying to convert my micro to ArduinoISP with sketch from examples. It compiles well but isn’t work with avrdude!

Overall this is a great board but I’ve been having some problems getting it to work with a rotary encoder. I bought a 360p/r encoder, similar to the larger ones sold here but from a different supplier. It works great with my Uno; I can throw the shaft around as fast as I want and the board keeps up impeccably. However, when using this board with the exact same code, I get erroneous readings more often than not.

I’m using direct reading via PIND for the maximum possible speed. I read that pins 2 and 3, which I’m using, are reversed between the ATMEGA328 and 32u4, but I’m calling digitalPinToInterrupt which should compensate for that difference. Does anyone have a way to fix this in code, or will I have to go hunting for a decoder IC? EDIT: To clarify, the problem doesn’t seem to be with the interrupts not firing. As far as I can tell, the ISR is called every time it’s supposed to, but reads the wrong value from the encoder’s “B” line. I’m using pullup resistors but it consistently reads low when it should be high, not sure what’s up with that.

I’m complaining once again about the documentation (yes, I read the reply to my previous post, but that was for a related but different issue). The schematics are incorrect and out of sync with the illustration in the Hookup Guide. The Hookup Guide is correct, as far as I can tell.

Specific issues: – D8 has no analog function – D9 seems to connect to analog 8 – A10 is on D12 and is marked as not used – The PDF schematic is V13B, yet the Eagle.sch file is V13a It’s important to me because I am modelling this module in Proteus VSM (Labcenter Electronics) based on their Leonardo simulation model. It seems to work fine but I’d rather be sure that I got it right. I am using it for a class project where my students are embedding the module to monitor voltage, current and temperature in a linear power supply. I apologize, this board is on our list of “revisions” precisely for this reason. When we updated the footprint in Eagle to correct the naming on the schematic it also changed the physical footprint (just things like amount of paste etc.), but since we are still ordering the old version we didn’t update the board files. In other words we made a big mess and painted ourselves in a corner. I dug through datasheets and board files to make sure the graphical datasheet was correct though.

Also, feel free to email our techsupport department and they can send you a copy of the gerber files we are ordering which should be the final say. Sorry, we ended up with a mess on our schematics for the ATmega32U4 and consequently the Pro Micro. We’ve tried to fix it but it is still messy in places. The schematic on this page seems to be correct. I also know when I made the graphical datasheets I went to the ATmega32U4 datasheet to verify everything so that should be correct as well.

Technically the SPI pins are used the same way in both, they are just labeled wrong in one. The actual board file never changed, just the incorrect labeling.

This is a really awesome board. Arduino compatibility, native USB and a sleek profile make it great for many projects. I have never had any trouble getting it to work, contrary to many comments below. My one complaint is that the USB receptacle is too flimsy (a common problem with surface-mount micro USBs).

After plugging / unplugging a USB cable a dozen or so times, even quite gently, the receptacle breaks off, pulling the solder terminals off with it. Although I appreciate the design choice to make the size as small as possible and the back of the board flat, a device whose main feature is native USB should have a sturdier USB receptacle. I followed the tutorial for Linux (I am using Ubuntu 14.04, arduino 1.0.5) but still doesn’t work.

I got the following error: processing.app.debug.RunnerException: Couldn’t find a Leonardo on the selected port. Check that you have the correct port selected. If it is correct, try pressing the board’s reset button after initiating the upload.

Arduino Processing.app.serialexception Error Opening Serial Port

At processing.app.debug.AvrdudeUploader.uploadViaBootloader(AvrdudeUploader.java:153) at processing.app.debug.AvrdudeUploader.uploadUsingPreferences(AvrdudeUploader.java:67) at processing.app.Sketch.upload(Sketch.java:1671) at processing.app.Sketch.exportApplet(Sketch.java:1627) at processing.app.Sketch.exportApplet(Sketch.java:1599) at processing.app.Editor$DefaultExportHandler.run(Editor.java:2380) at java.lang.Thread.run(Thread.java:744) I try to reset the board during uploading same error. Does someone have solution to this? I’m having some problems with the hardware serial on this board, maybe someone could help me out. I have an OLED screen (model below) receiving serial data from this board.

Over SoftwareSerial it works, but transfer is very slow, and I was trying to just use 0,1 pins to save program space. However, when I switch the serial used in the code to “Serial” and switch the pins to 0,1, I get nothing from the screen.

It works on the hardware serial of both a Duemilanove and a Due. From the serial monitor I can see that signals are being sent at the appropriate times that are reaching the USB connection, but the screen isn’t responding. This is the case on USB power as well as a a separate power supply. Any thoughts?

Hi, I have ProMicro 5V/16MHz and I have Linux Mint 16. While trying upload the sketch I am getting following error: Found programmer: Id = “Hello H”; type = Software Version = H.e; Hardware Version = l.l avrdude: error: buffered memory access not supported. Maybe it isn’t a butterfly/AVR109 but a AVR910 device? Befote I uploaded sketch sending Hello throught Serial. The same problem with my other ProMicro. I have followed the hookup guide, I have selected correct board and port.

Can you give me some advice? I’m pretty close to returning all the Pro Mirco’s I have.

Questions: 1.) Why was the choice to not have the RESET pin in the same location as the Pro Mini? 2.) Why on EARTH would you not break out the SS pin (#17) but connect it to an RX LED? 3.) Regarding #2 above, how can you get or re-assign/re-map the SS pin to another pin so it can actually be used? I am trying to use this with (currently) a USB Host (Mini) Shield but I’d imagine other SPI devices will have same problem Is there something that needs to be done with the Arduino IDE? Or perhaps done with the USB Host Shield 2.0 library itself? If it IS the USB HOst 2.0 lib then what happens with other PSI devices? Please post any links or tuts that addresses this issue.:) Sparkfun forum has led to zero responses anybody ‘here’ that can provide some help?

Sorry you are having problems with this board. To answer a few of your questions.

Space, there just wasn’t space, the USB circuitry on the board takes up a bit leaving us with something that had to go. We made the Pro Micro compatible with the Arduino Leonardo, that decision was made there.

Keep in mind you should be able to use any pin as a SS since each device on the SPI bus needs a different SS pin. Most libraries or code actually have you assign the SS pin, it might be buried in the library. Keep in mind not all libraries work with the Leonardo/ATMega32U4 boards.

If you are still having problems try emailing techsupport@sparkfun.com and they should get back to you (both forums and comments are designed as user support and only loosely monitored by staff). I can’t get this thing to fly under Arduino IDE v1.6.2. I followed the instructions in the Hookup Guide to the letter. The driver installed fine, the com port and board shows up in in the list just like they should. Even when trying to compile a bare minimum sketch, I get the following error: Cannot run program “C: Program Files Arduino/hardware/tools/avr/bin/avr-g”: CreateProcess error=3, The system cannot find the path specified Thanks in advance to anyone with a helpful suggestion or two! Edit: Arduino IDE v1.6.2 seems to have broken the instructions in the Hookup Guide.

Reverting to v1.6.1 did the trick. BTW, it was the same situation under both WinXP and Win7. Like many here, I had some issues getting the Pro Micro to connect to my Windows 7 Arduino IDE environment. I believed I had installed all of the code bits as far as drivers and the Arduino IDE, but I just could not get it to work. Somewhat in desperation, I wired up the reset button suggested to see if I could force the board into the mode I wanted.

Lo and Behold! Forcing the Pro Micro via a reset caused Windows to recognize it differently, than it did when not in download code mode and attach the appropriate drivers.

Now it works just as well as the Uno R3 does, with both code downloads and serial monitoring from the Arduino IDE flipping back and forth just as you would like. I have not used the reset button again except for that one time driver install. With regard to the micro USB port weakness issue, I think I have “fixed” the problem by simply connecting a USB cord to it once and leaving it in while I am in development. Forewarned is for armed. I disconnect the PC end when I need to power down or disconnect it. My first project ported very easily from the Uno R3 to the Pro Micro - although I did use a completely different set of pins from one to the next.

This demonstrates the value of defining constants for which pin you are using at one place in your code - it makes this sort of transition trivial. The Pro Micro appealed to me for the small form factor, USB connectivity (just in case I need to later easily tweak the software), and on board power regulation. I may play with power regulators next to learn how to do this on my own.

Anybody know what I need to do next? MacBook Air 10.10.2???? Power - Arduino (Middle Slot) - 09 Bargraph Board - Arduino Leonardo Thanks in advance!!

Sketch uses 4,252 bytes (14%) of program storage space. Maximum is 28,672 bytes. Global variables use 151 bytes (5%) of dynamic memory, leaving 2,409 bytes for local variables. Maximum is 2,560 bytes.

Processing.app.debug.RunnerException at cc.arduino.packages.uploaders.SerialUploader.uploadUsingPreferences(SerialUploader.java:133) at processing.app.debug.Compiler.upload(Compiler.java:165) at processing.app.Sketch.upload(Sketch.java:1260) at processing.app.Sketch.exportApplet(Sketch.java:1202) at processing.app.Sketch.exportApplet(Sketch.java:1174) at processing.app.Editor$DefaultExportHandler.run(Editor.java:2471) at java.lang.Thread.run(Thread.java:745) Caused by: processing.app.SerialException: Error touching serial port '/dev/cu.EV3-SerialPort'. At processing.app.Serial.touchForCDCReset(Serial.java:92) at cc.arduino.packages.uploaders.SerialUploader.uploadUsingPreferences(SerialUploader.java:122). 6 more Caused by: jssc.SerialPortException: Port name - /dev/cu.EV3-SerialPort; Method name - openPort; Exception type - Port busy. At jssc.SerialPort.openPort(SerialPort.java:164) at processing.app.Serial.touchForCDCReset(Serial.java:86). I have managed to solve the problem: I think the problem occurs because I have first launched Arduino software from the arduino folder (without installing it). So I have downloaded the latest Arduino software version(it's.exe file) and I have installed it into my computer.

This has created 'Arduino' folder in the directory 'C: Program Files (x86)' and asked me wheither to install the driver or not (Sure I click on 'accept to install the driver'). Finally I have launched the arduino software from the Windows menu and it works. Hope This will be useful for you.

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