# First Pro Micro 5V - can't upload or something

**URL:** <https://community.sparkfun.com/t/first-pro-micro-5v-cant-upload-or-something/43002>\
**Category:** Arduino\
**Created:** [November 3, 2021, 4:37pm UTC](https://community.sparkfun.com/t/first-pro-micro-5v-cant-upload-or-something/43002 "2021-11-03T16:37:27Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![ZajtiM](https://avatars.discourse-cdn.com/v4/letter/z/e274bd/32.png) [@ZajtiM](https://community.sparkfun.com/u/ZajtiM)\
**Post date:** [November 3, 2021, 4:37pm UTC](https://community.sparkfun.com/t/first-pro-micro-5v-cant-upload-or-something/43002/1 "2021-11-03T16:37:27Z")

</div>

Hello,

i’m very new to this whole thing. Yesterday i received my first SparkFun Pro Micro 5V.

I spent more or less whole day (after work) messing with Arduino IDE upload problems. Main problem was, my Pro Micro was disconnected after few seconds every time i plugged it in USB.

Today i tried uploading “empty” sketch (few times). Setup() and Loop() are empty (BareMinimum), so now it stays connected. But if i try to upload “Blinky, Hello World” sketch from [learn.sparkfun.com](http://learn.sparkfun.com) website, then i it starts disconnecting after few seconds again. Or uploading “Blink” sketch from Arduino IDE.

I attached screenshot of Arduino IDE Tools Menu, where you can see i have selected correct Board/Processor/etc. I’m not sure about programmer. Like i said i’m new.

And here is also output from Arduino IDE after uploading “BareMinimum” sketch. A bit more info might be helpful to figure out what is going on.

I used [code], because it displays it a bit better (readable). Last few lines sort of don’t make any sense to me. “avrdude: Device signature” etc. and “Wrong microcontroller …”.

Any help is appreciated.

```auto
avrdude: Version 6.3-20190619
         Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
         Copyright (c) 2007-2014 Joerg Wunsch

         System wide configuration file is "/home/USER/Arduino/hardware/sparkfun/avr/avrdude.conf"
         User configuration file is "/home/USER/.avrduderc"
         User configuration file does not exist or is not a regular file, skipping

         Using Port : /dev/ttyACM0
         Using Programmer : avr109
         Overriding Baud Rate : 57600
         AVR Part : ATmega32U4
         Chip Erase delay : 9000 us
         PAGEL : PD7
         BS2 : PA0
         RESET disposition : dedicated
         RETRY pulse : SCK
         serial program mode : yes
         parallel program mode : yes
         Timeout : 200
         StabDelay : 100
         CmdexeDelay : 25
         SyncLoops : 32
         ByteDelay : 0
         PollIndex : 3
         PollValue : 0x53
         Memory Detail :

                                  Block Poll Page Polled
           Memory Type Mode Delay Size Indx Paged Size Size #Pages MinW MaxW ReadBack
           ----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
           eeprom 65 20 4 0 no 1024 4 0 9000 9000 0x00 0x00
           flash 65 6 128 0 yes 32768 128 256 4500 4500 0x00 0x00
           lfuse 0 0 0 0 no 1 0 0 9000 9000 0x00 0x00
           hfuse 0 0 0 0 no 1 0 0 9000 9000 0x00 0x00
           efuse 0 0 0 0 no 1 0 0 9000 9000 0x00 0x00
           lock 0 0 0 0 no 1 0 0 9000 9000 0x00 0x00
           calibration 0 0 0 0 no 1 0 0 0 0 0x00 0x00
           signature 0 0 0 0 no 3 0 0 0 0 0x00 0x00

         Programmer Type : butterfly
         Description : Atmel AppNote AVR109 Boot Loader

Connecting to programmer: .
Found programmer: Id = "CATERIN"; type = S
    Software Version = 1.0; No Hardware Version given.
Programmer supports auto addr increment.
Programmer supports buffered memory access with buffersize=128 bytes.

Programmer supports the following devices:
    Device code: 0x44

avrdude: devcode selected: 0x44
avrdude: AVR device initialized and ready to accept instructions

Reading | ################################################## | 100% 0.29s

avrdude: Device signature = 0x0d3f0d
avrdude: Expected signature for ATmega32U4 is 1E 95 87
         Double check chip, or use -F to override this check.

avrdude done. Thank you.

Wrong microcontroller found. Did you select the right board from the Tools > Board menu?

```

 ![ProMicro_boar_processor.png](https://canada1.discourse-cdn.com/sparkfun/original/3X/d/f/dfaf32f84fc26a881c1920d51b731544122ed516.png)

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<div class="post-metadata">

**Author:** ![ZajtiM](https://avatars.discourse-cdn.com/v4/letter/z/e274bd/32.png) [@ZajtiM](https://community.sparkfun.com/u/ZajtiM)\
**Post date:** [November 3, 2021, 6:10pm UTC](https://community.sparkfun.com/t/first-pro-micro-5v-cant-upload-or-something/43002/2 "2021-11-03T18:10:55Z")

</div>

I guess i should create new post yesterday. Because by now i managed to get it to work,… somehow. :?

Sending “Hello world!” and blinking. 😃

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<div class="post-metadata">

**Author:** ![ZajtiM](https://avatars.discourse-cdn.com/v4/letter/z/e274bd/32.png) [@ZajtiM](https://community.sparkfun.com/u/ZajtiM)\
**Post date:** [November 6, 2021, 9:27am UTC](https://community.sparkfun.com/t/first-pro-micro-5v-cant-upload-or-something/43002/3 "2021-11-06T09:27:23Z")

</div>

After i posted second post i still had problems uploading.

And here is fix to my problems uploading (at least on Linux). Now is working as it should every time.

```auto
sudo systemctl stop ModemManager

```

Just in case others might need help/fix in future.