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@SirMichael

I did some more studying, and came up with the following table:

2d232859-84b4-4421-9143-baaf384d0c65-image.png

I hope this is right!
Now, I'm not using the M5Stack bottom board which has the PortB and PortC, so I figure that I can use the RXD2/TXD2 pins as well as the G36 and G26 pins. I'll use those for the other 2 SoftwareSerial ports, and G27 and G19 for the other pins.

The thing that I found confusing was that they do list the pins in the M5Stack documents, but they don't really explain what is available to the user. This took a lot more work than it should have!

Sir Michael
FAQS

When you meet problems using M5Stack, we help you solve it.

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@MiguelM looks like rotation isnt right, what is displayed if you just burn easyLoader demo file or latest uiflow2 firmware from M5Burner?
Units

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A STEM project for Christmas.

In this project I map MIDI musical notes and their Boomwhacker colours to a M5Stack CoreS3 (ESP32 based) computer's screen.

Boomwackers are great to teach students music and I used them in STEM clubs and also to make music fun for people with disabilities. You can also use this hardware & software configuration to learn the piano keyboard as you get feedback as to what keys you are playing.

There is a wide range of material to support Boomwhackers including musical instruments like xylophones, bells and tubes and there are also plenty of books with the Boomwhacker colour codes for songs.

I go a step further and show both the notes from the C Major scale and its associated Boomwhacker colour on the computer and external RG LED strip.

So for Christmas connect your tree lights to Christmas music and let STEM students learn coding and music.

This makes a great STEM project particularly if the students share their results with other students with a disability.

This project is on Youtube: https://youtu.be/gPvJRJ3iCL8

see more on my Youtube channel: dsrc12

References:
Youtube:
M5Stack MIDI ( https://shop.m5stack.com/products/midi-unit-with-din-connector-sam2695 )
M5Stack CoreS3 ( https://shop.m5stack.com/products/m5stack-cores3-esp32s3-lotdevelopment-kit )
Boomwhackers ( https://boomwhackers.com/ )
Cores

Core2 for AWS M5Stack Fire M5stack Grey M5 Stick/StickC M5GO FACES Kit M5Stick V Core 2

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@GreekAlex can you see comport being detected when you connecting usb in to it?
Bases

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Topics

176
Posts

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The ATOMIC SPK Base (NS4168) with UIFlow2 is compatible with various example projects for robotics and IoT. You can find UIFlow2 examples on the official Atomic Pi documentation or their GitHub repository for ready-to-use sample codes.
Atom

For topics on the M5Stack Atom.

214
Topics

706
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Howdy!

I have a program that sends IMU data over BLE-MIDI, and now I'd like to skip using BLE, and adapt the program to send over USB MIDI.

I've been trying the Adafruit TinyUSB MIDI implementation without any success.

Any recommendations on how to do USB MIDI with that AtomS3?

H

M5paper void disableEXTPower()

• • HappyUser

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Hello @HappyUser

yes, that should solve the issue of how to power off (and back on) the SIM7080 unit (or any other unit for that matter).

Thanks
Felix
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M5Stack Core S3

• • Bipman

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OK, thanks.

Steve
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UnitV Wifi Networking

• • usermm5

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Thanks. I already have got UnitV2, UnitV (both OV7740 and OV2640) for evaluation. Do any of the K210 based UnitVs have built-in Wi-Fi's? It would be strange if they don't because once you deploy them in the field you want some sort of network connectivity and would be odd to use a controller with each one of them to go along (as I need multiple Units to be deployed) - keeping aside costs and looking at it purely from ease of use.

With UNITV2, it's very easy to work with as its simply a SBC with linux but the one I received gets really hot (higher temperatures: 70+) within 5-10 minutes of operation so would prefer not to use it for any real world application.
C

Error: "BalaC maybe not connect"

• • cristian.spiescu

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I think the unit is defective. Interesting, because other things work: display, program w/ UI Flow, etc.

I tried several M5Stick, M5StickPlus, M5StickPlus 1.1. They all work. Only the initial M5StickPlus 1.1 has this issue. And BTW, it behaves similarly when connected to a servo HAT.
A

Position calculation for color block

• • acersh

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PWM on IO extension module?

• • ivax007

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M5-TOUGH / unable to change display brightness

• • erazor

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@felmue said in M5-TOUGH / unable to change display brightness:

M5.Axp.SetLDOVoltage(3,3000);

Hi Felmue!

That one works, thanks a lot!

Really confusing that there is a PWM backlight LED mentioned in the library which does not work. And that the usage of SetLcdVoltage is inconsistent between the Core2 and TOUGH.

On Core2 the LcdVoltage changes DCDC3 (@param number 0=DCDC1 / 1=DCDC2 / 2=DCDC3 ) which is connected to LCD_BL. For the TOUGH on the other hand DCDC3 is unused and they used the LDO3.

So maybe they should simply change the line SetDCVoltage(2, voltage); to M5.Axp.SetLDOVoltage(3,voltage); or maybe even better introduce a new function SetLCDBacklightVoltage(...) in their library.

Thanks to all for your hints.
A

CM4 Stack Issues from the very start.

• • ajb2k3

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No it was from this place:
https://github.com/m5stack/m5stack-linux-dtoverlays/tree/main/examples

The issue is actually a dependence missing from the install instructions (user writeup error) fixed with adding the following command:

sudo apt-get install qtdeclarative5-dev

before running

cmake .. && make
P

Timer Camera X: improve image quality

• • pederalm

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Alternative code for the M5Stack BCT Standing Base with built in SHT30 temp/humid sensor

• • theMusicMan

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@themusicman, I checked out your code because my graphics are rather boring/default.
I will try implementing some of your examples!
T

Multiple errors when using <M5GFX.h> and MM5Stack.h> in same program

• • theMusicMan

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Unterminated /* comment clang(unterminated_block_comment) error with red squiggle

• • theMusicMan

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How do I draw an arc using M5CORE2 - can't find method in m5core2 or m5gfx

• • theMusicMan

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M5stack Camera

• • apadt

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How do I enter BOOT mode on M5Core2: Wrong boot mode detected (0x0)! The chip needs to be in download mode

m5core2 bootloader • • theMusicMan

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@ajb2k3 said in How do I enter BOOT mode on M5Core2: Wrong boot mode detected (0x0)! The chip needs to be in download mode:

@themusicman This means that something else in OSX is access the USBport via a terminal preventing M5Burner from being able to access the port.

Please make sure only M5Burner is running and that no other terminal software is running.

I tried on my MacBookPro (original issue was on iMac) with no other serial terminal software running, exactly the same issues unfortunately. I have now returned the M5Core2 device back to thePiHut and am awaiting a replacement.

Thanks for your support though @ajb2k3 - it is much appreciated.
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Operational Temperature Range M5Stamp ESP32S3

• • mikemoy

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Operational Temperature Range of M5Tough

• • KK

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@kk likely 0-60, as is the standard core basic and core2.
LCDs malfunction and possibly freeze damage below 0.
Cannot withstand condensating environment.
K

Servo Kit 180 connection

• • kylebuttress

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I have been able to get it working with the correct wiring using the grove port in a Core Basic Gray unit.

No I will start to use the io pins in the bottom of the unit so I can use the grove port for other things.

thanks for all your assistance.
M

This topic is deleted!

• • M5StickFreakler

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Stamp Pico connected to ESP32 Downloader - nothing happens

• • nicolas123

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Thanks to both of you who replied, I got it working with your help!

The problem was the port I was connecting to. Using a USB-A to USB-C cable, connected to the Mac Mini M1's USB-A port got it to work and the device now shows up as /dev/tty.wchusbserialXXXXX

Very happy about this, just in time before the weekend. ;)

Thanks again!

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