# Arduino Pro Mini Pinout **URL:** \ **Category:** General Guidance\ **Created:** [March 5, 2013, 3:33pm UTC](https://forum.arduino.cc/t/arduino-pro-mini-pinout/148829 "2013-03-05T15:33:21Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![pighixxx](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/pighixxx/32/211507_2.png) [@pighixxx](https://forum.arduino.cc/u/pighixxx)\ **Post date:** [March 5, 2013, 3:33pm UTC](https://forum.arduino.cc/t/arduino-pro-mini-pinout/148829/1 "2013-03-05T15:33:21Z")
A new version is available! Download here: [http://pighixxx.com/prominiv3\_0.pdf](http://t.co/3ACrZVFG89) > A new Pinout is available: 😃 > > ARDUINO PRO MINI > _Versione 1.1_ > > [Arduino Pro Mini](http://www.pighixxx.com/downloads/pro-mini/) > > ATMEGA168 PINOUT > > [ATMega168](http://www.pighixxx.com/downloads/atmega168/). > > Bye, > PighiXXX ---
**Author:** ![pighixxx](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/pighixxx/32/211507_2.png) [@pighixxx](https://forum.arduino.cc/u/pighixxx)\ **Post date:** [March 6, 2013, 4:14pm UTC](https://forum.arduino.cc/t/arduino-pro-mini-pinout/148829/2 "2013-03-06T16:14:37Z")
ATMega168 processor pinout added. ---
**Author:** ![pighixxx](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/pighixxx/32/211507_2.png) [@pighixxx](https://forum.arduino.cc/u/pighixxx)\ **Post date:** [March 10, 2013, 10:36am UTC](https://forum.arduino.cc/t/arduino-pro-mini-pinout/148829/3 "2013-03-10T10:36:49Z")
New version (1.1) on line. ---
**Author:** ![system](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/system/32/1140315_2.png) [@system](https://forum.arduino.cc/u/system)\ **Post date:** [August 9, 2013, 11:11am UTC](https://forum.arduino.cc/t/arduino-pro-mini-pinout/148829/4 "2013-08-09T11:11:19Z")
Hi Can I flag an error. At the top left of the diagram there are two pins with the SCL label. The upper one should be labeled SDA. Otherwise a great diagram. ---
**Author:** ![system](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/system/32/1140315_2.png) [@system](https://forum.arduino.cc/u/system)\ **Post date:** [November 2, 2013, 3:07pm UTC](https://forum.arduino.cc/t/arduino-pro-mini-pinout/148829/5 "2013-11-02T15:07:41Z")
Arduino Pro mini haven't pin 19 and 22 (ADC6 and ADC7) Why ? ---
**Author:** ![Paul\_B](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/paul_b/32/216376_2.png) [@Paul\_B](https://forum.arduino.cc/u/Paul_B)\ **Post date:** [January 4, 2014, 10:30am UTC](https://forum.arduino.cc/t/arduino-pro-mini-pinout/148829/6 "2014-01-04T10:30:33Z")
> Knight\_FlyCn: > Arduino Pro mini haven't pin 19 and 22 (ADC6 and ADC7) Why ? Not part of the original design, basically because the DIP chip used in the UNO does not bring them out. Later versions (clones) of the Pro Mini however, _have_ added them. ---
**Author:** ![PCWorxLA](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/pcworxla/32/216912_2.png) [@PCWorxLA](https://forum.arduino.cc/u/PCWorxLA)\ **Post date:** [May 21, 2014, 4:54am UTC](https://forum.arduino.cc/t/arduino-pro-mini-pinout/148829/7 "2014-05-21T04:54:38Z")
The pinout links are unfortunately down... ☹ ---
**Author:** ![pighixxx](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/pighixxx/32/211507_2.png) [@pighixxx](https://forum.arduino.cc/u/pighixxx)\ **Post date:** [August 5, 2014, 3:49pm UTC](https://forum.arduino.cc/t/arduino-pro-mini-pinout/148829/8 "2014-08-05T15:49:32Z")
A new version is available! Download here: [http://pighixxx.com/prominiv3\_0.pdf](http://t.co/3ACrZVFG89) ![prominipdf.png](https://europe1.discourse-cdn.com/arduino/original/4X/f/7/e/f7eda2a9afb7e1ea2c468630cafb4cf49954e127.jpeg) ---
**Author:** ![strykeroz](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/strykeroz/32/214772_2.png) [@strykeroz](https://forum.arduino.cc/u/strykeroz)\ **Post date:** [September 4, 2014, 10:30am UTC](https://forum.arduino.cc/t/arduino-pro-mini-pinout/148829/9 "2014-09-04T10:30:38Z")
Thankyou! This is far easier to read this than the silkscreen on these clone boards Geoff ---
**Author:** ![pighixxx](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/pighixxx/32/211507_2.png) [@pighixxx](https://forum.arduino.cc/u/pighixxx)\ **Post date:** [September 4, 2014, 1:30pm UTC](https://forum.arduino.cc/t/arduino-pro-mini-pinout/148829/10 "2014-09-04T13:30:34Z")
Thanks! Meanwhile same download new version (3.1) ---
**Author:** ![SuperCartman](https://avatars.discourse-cdn.com/v4/letter/s/aeb1de/32.png) [@SuperCartman](https://forum.arduino.cc/u/SuperCartman)\ **Post date:** [September 4, 2014, 1:56pm UTC](https://forum.arduino.cc/t/arduino-pro-mini-pinout/148829/11 "2014-09-04T13:56:48Z")
Noob question here, but is this the same pinout for the Pro Mini 5v 16mhz atmega328? ---
**Author:** ![pighixxx](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/pighixxx/32/211507_2.png) [@pighixxx](https://forum.arduino.cc/u/pighixxx)\ **Post date:** [September 4, 2014, 2:24pm UTC](https://forum.arduino.cc/t/arduino-pro-mini-pinout/148829/12 "2014-09-04T14:24:43Z")
Yes, but it depends on the version, maybe they can miss some analog pins ---
**Author:** ![isaacw](https://avatars.discourse-cdn.com/v4/letter/i/8e8cbc/32.png) [@isaacw](https://forum.arduino.cc/u/isaacw)\ **Post date:** [September 18, 2014, 3:15am UTC](https://forum.arduino.cc/t/arduino-pro-mini-pinout/148829/13 "2014-09-18T03:15:02Z")
Very nice graphic. There may be a problem, however. According to this: arduino.cc/en/uploads/Main/Arduino-Pro-Mini-schematic.pdf the pins for MOSI and MISO are swapped. This is referring to the pdf, v3r1, BTW. The png of v3r0 seems correct. Isaac ---
**Author:** ![dansut](https://avatars.discourse-cdn.com/v4/letter/d/3ec8ea/32.png) [@dansut](https://forum.arduino.cc/u/dansut)\ **Post date:** [April 15, 2015, 4:50pm UTC](https://forum.arduino.cc/t/arduino-pro-mini-pinout/148829/14 "2015-04-15T16:50:40Z")
> isaacw: > Very nice graphic. There may be a problem, however. According to this: > > arduino.cc/en/uploads/Main/Arduino-Pro-Mini-schematic.pdf > > the pins for MOSI and MISO are swapped. This is referring to the pdf, v3r1, BTW. The png of v3r0 seems correct. This just caught me out - it does seem like v3.1 has MOSI and MISO switched from how they actually are on the board I'm using. They were correct in v3.0. /dan ---
**Author:** ![bigone5500](https://avatars.discourse-cdn.com/v4/letter/b/b2d939/32.png) [@bigone5500](https://forum.arduino.cc/u/bigone5500)\ **Post date:** [May 23, 2015, 1:07pm UTC](https://forum.arduino.cc/t/arduino-pro-mini-pinout/148829/15 "2015-05-23T13:07:14Z")
May I ask what software you use to create your pinouts? I enjoy referring to them as they are clear and easy to use. Thanks. ---
**Author:** ![vprheli](https://avatars.discourse-cdn.com/v4/letter/v/c77e96/32.png) [@vprheli](https://forum.arduino.cc/u/vprheli)\ **Post date:** [April 30, 2016, 5:19am UTC](https://forum.arduino.cc/t/arduino-pro-mini-pinout/148829/16 "2016-04-30T05:19:22Z")
Nice job if you are the designer. But there are some mistakes. A4-A7 pins below the board must be shifted little bit upper (red rings), because they are not in the same raster as other pins. On the board it is correct. Then pin description is connected to the main pin, not to A4-A7. ---
**Author:** ![OldSteve](https://avatars.discourse-cdn.com/v4/letter/o/0ea827/32.png) [@OldSteve](https://forum.arduino.cc/u/OldSteve)\ **Post date:** [April 30, 2016, 5:58am UTC](https://forum.arduino.cc/t/arduino-pro-mini-pinout/148829/17 "2016-04-30T05:58:45Z")
Pity about the MISO / MOSI screw-up. I'll bet that's caught a lot of people out by now. V3.1 should be scrapped, and completely removed from this thread, or pighixxx should at least edit and make it clear that there's an error, rather than just leaving it as he's done. ---
**Author:** ![seanspotatobusiness](https://avatars.discourse-cdn.com/v4/letter/s/71c47a/32.png) [@seanspotatobusiness](https://forum.arduino.cc/u/seanspotatobusiness)\ **Post date:** [September 27, 2017, 8:23am UTC](https://forum.arduino.cc/t/arduino-pro-mini-pinout/148829/18 "2017-09-27T08:23:51Z")
What do the red and black rings around some of the pads mean? ---
**Author:** ![MAS3](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/mas3/32/1013044_2.png) [@MAS3](https://forum.arduino.cc/u/MAS3)\ **Post date:** [September 27, 2017, 9:24pm UTC](https://forum.arduino.cc/t/arduino-pro-mini-pinout/148829/19 "2017-09-27T21:24:41Z")
The red (or rather pink) rings are marking the A4, A5, and the bonus A6 and A7 that come with the TQFP version of the Atmel chip. Because they are on a bit of an odd place, they are marked, and explained below. By the way, the remarks made by vprheli are either corrected, or incorrect. The pins are shown as they are, with an offset to the other pins. But you have to take a real good look to see that. And to be honest i don't think it's that important to have them drawn at the exact correct spot for the purpose of this drawing. I can't tell you anything about those black rings. ---
**Author:** ![system](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/system/32/1140315_2.png) [@system](https://forum.arduino.cc/u/system)\ **Post date:** [May 5, 2021, 4:50pm UTC](https://forum.arduino.cc/t/arduino-pro-mini-pinout/148829/20 "2021-05-05T16:50:34Z")
Closed on May 5, 2021, 4:50pm UTC