Hi @ajb2k3,

I gather you are talking about the internal MBUS GPIO pins - that connect the modules together.

The pin pitch - distance between the pins - is 2.54 but the pins are height reduced compared to those found on a standard GPIO header - too SHORT for Dupont connectors to attach.

The MBUS pins are intentionally height reduced in order to minimise the overall height of the M5Stack.

It is possible to source a third party full height 30 pin GPIO header if needed, or you can make one using a GPIO for Arduino or Raspi. You could get a PCB made to go with it, based on the files available on github, see here.

Hi @ajb2k3,

Are you actually using Arduino IDE version 1.6.5 from 2015 - or is that a typo ?

From your comments, I am not sure what issue you have found.

Depending what sketch you are trying to load will dictate what libraries will need to be referenced at the start of the sketch, such as those you list.

If you are having problems loading the examples, perhaps pick one and outline some specific details including error messages.

Hi @lastcaress,

You should be able to flash the standard M5Stack firmware onto the M5GO (you may need to use the "Erase" function on the ESP Flash Downloader Tool first).

If you want to use M5Cloud you will need to load the M5Cloud firmware onto the M5Stack - it is available here.

Not sure if you will be able to use the sensors using the same code - it depends how it is all setup.

@wschnell Hi,

Perhaps consider the M5Stack PLC Proto board.... you can use it to power the M5Stack via a standard DC power transformer rated between 9 - 12 volts. Have tested this - works well.

Hi @Zathras0,
That seems a weird error to get from running M5Stack's simple Hello sketch which does not include a poweroff function. (?).
Also I don't know the "ResetReason" sketch that you referred to. Where did you find this ?

(1)OK it seems you have the M5Stack library installed in the correct place.

(2) Is the Espressif ESP32 library installed ? Check: C:\Users\█████\Documents\Arduino\Hardware\espressif\esp32\libraries . If you don't have files there go to M5Stack setup guide and install them.

(3) As PépéMax suggested, in the Arduino IDE, check that the M5Stack is selected as the board that you are using with the IDE. On the Arduino menu go to /Tools/Board . The M5Stack should be set here as the board you are using.

@PépéMax

'...some function of the ESP32 does not work yet for the M5Stack library like analogWrite()

Just to clarify, as I understand it, the issue is that not all functions available on Arduino or ESP8266 boards are available at present on ESP32 boards in general - eg: analogWrite();. That is, the problem is not specific to M5Stack boards - it effects all ESP32 boards. Referenced here

@richard Hi Richard,

Last time i tried, drawJpgFile worked fine with Arduino 1.8.5.

Images need to be sized up to 330 x 240.

@kurthofman Hi Kurt,

M5GO vs M5Stack Grey PSRAM / MPU9250 model - Many things are the same but some things are different. Here are the major differences:

M5GO - 16 Mb SPI Flash , 4 Mb SRAM , 3x Grove ports , 550 mAh built-in battery, includes screws connecting bottom to top - 2 are captive, Lego compatible surface on the bottom module, RGB LEDs built into the bottom module. Comes loaded with the M5GO firmware that includes the Blockly web programming program.

M5Stack Grey model - 4 Mb SPI Flash , 4 Mb PSRAM , 1x Grove port , 150 mAh built-in battery, no screws included, no Lego compatible surface on bottom module. Comes loaded with the "Factory Test" sketch.

The M5GO should support any of the add-on modules..... I tested it with the Battery Module and it worked fine.

You might want to purchase from the official store locations either at Ali Express here or their own store here

@martinsky No problem - glad to hear it is now working..... the other two menus on my github page are also very good.... little more involved to setup, but worth the effort.

The SD-Updater menu supports M5Stack library versions 0.1.6 and 0.1.7 (see notes under installation).

The MultiApp Firmware Menu uses the ESP Flash Downloader to upload the code in place of the Arduino "IDE".

@martinsky

Hi Martin,

There may be a few issues here so I start from the beginning......

OK so first up you need to have completed the standard steps for setting up the M5Stack, located here

You should then have these directories installed:
(1) C:\Users\your-user-name\Documents\Arduino\hardware\espressif\esp32
(2) C:\Users\your-user-name\Documents\Arduino\libraries\M5Stack

If downloading using git, then in git go to directory location equivalent to C:\Users\your-user-name\Documents\Arduino - which from within git will be: ~/Documents/Arduino

Then do:

git clone https://github.com/PartsandCircuits/M5Stack-SAM.git

Go to: C:\Users\your-user-name\Documents\Arduino\M5Stack-SAM\M5Stack-SAM and open the M5Stack-SAM.ino file in the Arduino "IDE".

[ Note that "Parts and Circuits" should not be part of any directory names on your machine ].

Connect M5Stack , select com port, then compile and upload to M5Stack.

( For anyone not using git just select Download and then move the files into the appropriate directory: C:\Users\your-user-name\Documents\Arduino ) Avoid using Arduinos zip install option.

IMPORTANT NOTE:

You will need to be using M5Stack Library version 0.1.6 - some of the more recent libraries will probably not work, but 0.1.6 has been tested to work. I only recently became aware of this. I will make a note of this on the github page and will later try to update it.

To downgrade the M5Stack library version:

In Arduino, go to Sketch/Include Libraries/Manage Libraries then type M5Stack into the search field at the top.... it should then indicate which library version you have installed. If not 0.1.6 then click "Select Version" and select 0.1.6 and then select to install it.

Once you have the SAM menu loaded on your M5Stack you can then revert back to using a more recent version of the M5Stack library with the Arduino "IDE". I haven't noticed any problems resulting from moving between library versions.

OK hope that sorts this out for you.

@crea Hi Crea,

No previous discussion here that I recall. Is not officially supported.

Some references: Check this video and this repo. Also this article - (in Japanese - translator fail).

Seems it might be possible..... seems worth a try.

The repo was even updated recently !

Up for it ?