Pinout for Arduino Nano 33 IoT board

pak · July 12, 2019, 12:50pm

Hello Dude,
My Nano 33 IoT boards are just arrived and start to play with it. As soon as I put it on the breadboard, I have problem with pinout marking. There is pin marking on the back side only and no pin marking on the front side due to reduced board size. I've made pinout attached for those needed.

Anyone has official pinout for Nano 33 IoT board and schematic?

Regards,
pak

pert · July 12, 2019, 7:07pm

Although not the ascii art pinout we're used to seeing in the variant files for the AVR chips, there is a nice pinout table here:

github.com

arduino/ArduinoCore-samd/blob/master/variants/nano_33_iot/variant.cpp

/*
  Copyright (c) 2014-2015 Arduino LLC.  All right reserved.

  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.

  This library is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  See the GNU Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/


#include "variant.h"

This file has been truncated. show original

The schematic for the Nano 33 IoT has not yet been released so the only way someone could have one is if they reverse engineered it. I do have access to the schematic (but not the permission to release it), so if you have any specific questions about the board I can try to answer them now.

pak · July 13, 2019, 5:19am

Thank for reply, I've just started for DAQ project with node-red via mqtt and so far so good. I'm very impressive about Nano 33 IoT board, because it is small in size and has powerful ARM features that solves all problems of ESP module.

By the way, I've attached new version of pinout for the board.

satshri · July 21, 2019, 2:14am

Which pin is SCK in nanoIOT 33 please reply

pert · July 21, 2019, 2:18am

SCK is pin 13, just like on the classic Nano.

Also, an update to the statement I made in my previous reply:

pert:
The schematic for the Nano 33 IoT has not yet been released

The schematic and board design has now been released! You'll find them on the "Documentation" tab of the Nano 33 IoT's product page:

satshri · July 21, 2019, 2:48am

Thank you for reply. I dont see pin 13 I see only till D12. what is pin 13 please clarify I am new

pert · July 21, 2019, 2:53am

Pin 13 is on the other edge of the board right across from pin 12. The pins are all marked on the bottom of the board.

By the way, kolkataff is a scumbag spammer so make sure not to click on those links or you're probably get hacked. I've already reported them to the moderators.

satshri · July 21, 2019, 2:57am

Ah Thank you for reply. Can you please also tell me Rx pin where I should connect to for SPI

pert · July 21, 2019, 6:52am

SPI doesn't have Rx. It has MISO (master in, slave out) and MOSI (master out, slave in). So if you're looking for the pin on the Nano 33 IoT that receives SPI data, that's MISO, which is pin 12.

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Pinout for Arduino Nano 33 IoT board

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