Cores

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Core2 for AWS

46
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226
Posts

M

It still happens. Any permanent solution to the problem>
M5Stack Fire

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Topics

308
Posts

M

SOLUTION
I found the solution:
You need to follow these steps
Remove all modules, leaving only the host Then try to lower the baud rate when burning If there are wires, you can short-circuit G0-GND before powering on the device and then power on again.0_1711007605157_432299571_430472252787300_1867478767739245481_n.jpg
M5stack Grey

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Topics

222
Posts

A

I had a really hard time finding how to use the Port A of the M5Grey with the Port C GPS unit. After many hours
I figured it out.

Define the pins to use:
#define APortM5DialRxPin 15 //M5Dial PortA
#define APortM5DialTxPin 13 //M5Dial PortA
#define APortM5CoreRXPin 22. //M5Grey PortA
#define APortM5CoreTXPin 21. //M5Grey PortA
Define the HardwareSerial port.
HardwareSerial GpsSerial(2);

In setup begin the serial communication
GpsSerial.begin(GPSBaud, SERIAL_8N1, APortM5CoreRXPin, APortM5CoreTXPin);

I hope this will save people a lot of time
M5 Stick/StickC

M5Stack's little brother. Discuss M5 Stick hardware and software related issues here

343
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1.4k
Posts

A

@Emii214 you need to learn about programming but the first firmware you should have been using is UIFlow2
M5GO

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66
Posts

G

Firmware: M5GO core
Version: 1.13.2
Use according to the guide, graph receives data for 1 cycle, M5GO crashes afterwards.
Error" File "<string> ". line 56 in addToList Exception: 16
FACES Kit

27
Topics

114
Posts

M

Problem:

Der Schrittmotor funktioniert nur korrekt in der Z-Achse bei normalen (langsamen) Drehgeschwindigkeiten.
Beim Versuch, die X- und Y-Achsen zu verwenden, funktioniert der Motor nur, wenn ich die Vorschubgeschwindigkeiten auf das 10-fache oder höher erhöhe.
Wenn ich versuche, die Adresse auf 0x71 zu ändern, wird das Modul nicht erkannt.
M5Stick V

47
Topics

127
Posts

S

Hi, some suggestions for the next hw iteration:
connect imu irq pin connect rtc irq pin to esp32 to let us know whether the irq comes from power button or rtc let the buttons go out the case for easier access reduce time of power on btn to a single click seperate LED and IR for incognito use add the L-R-Center button from the M5Paper
Core 2

For Topics related to the Core 2

299
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1.3k
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L

I am using the CORE2 with an external battery. The rear cover and battery are removed and the M-BUS connector is plugged into a header on the system main board. I have a SPST On/Off switch between the battery and the BATT pin (M-BUS pin 30).
With the original CORE2, using the AXP192, the module would power up on battery connection when the switch was closed. Now, with the AXP2101, it's a two-step operation: close switch, then hold the power button on the side of the module to power up.
What I'm trying to do is restore the original behaviour: switch only.
Reading the AXP2101 datasheet:
6.5.2
Power up from BAT
If only battery is present and VBAT is higher than depletion threshold (VBAT_DPLZ), BATFET, connecting battery to system, is off by default and need to be turned on by pressing the PWRON key or inserting an adapter.
It seems pretty hopeless. Is there something else in the CORE2 v1.1 that I'm missing that could be used as a work-around?
Thanks

S

how to calibrate a m5 stack for GPS navigation

• • siddharth

1

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1
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2.3k
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No one has replied
S

Adding a microphone to the Core+Watch kit

• • somedude

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2
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C

Hook it up to an AD input of the M5Stack (ESP32).
Watch : https://www.youtube.com/watch?v=DffZVyksYi4
I will use one as a spectrum analyzer recording the sound of bees.
C

ATOM Matrix - basic working Access Point (micropython)

• • Conrad

5

0
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5
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9.5k
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C

@m5stack UiFlow Version 1.4.5 (Desktop) Issues
Pressing </> Python:
0_1586899662275_d5e1d27a-fb3e-4cf6-a804-ccb943374a93-image.png
At any time wipes out any code you have in the edit window, why?
Cannot save code, also two methods available to save:
0_1586899836134_4ebd7d13-b7fd-46f2-b82b-f235d7d1d99c-image.png
Or
0_1586899862312_ae0ea337-c3c8-4c38-812b-817cba96a19a-image.png

Using either method saves a main.m5f file (Note, not a main.py), opening the main.m5f results in:
rom m5stack import * from m5ui import * from uiflow import * rgb.set_screen([0,0,0,0,0xFFFFFF,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]) setScreenColor(0x222222)
Ok, so I thought I would change version via the Ver button at the top of the screen, now all I get is:

0_1586900318444_c38ae718-927a-486d-b540-bc31fbbfe7f9-image.png
On startup I get:
0_1586900382795_704ee601-390a-4461-89be-2cde53e65372-image.png

Everytime even though the driver is installed. I select Skip which takes me to the main GUI which informs me the Atom-matrix is detected.
Basic editing navigation via shortcut keys such as <ctrl> S don't work - very annoying.
Because of the Javascript error I can't open in UIFlow anymore to continue.... Now I'm stuck.

Please tell me I'm doing something wrong and being a complete idiot...
C

(SOLVED)Power ATOM Lite

• • cepics

14

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14
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20.0k
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P

thank you.
T

How to save battery with M5StickC

• • takanotume24

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5
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12.1k
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it also depends on the clock speed. sometimes speed is not needed. and it can save 50% of the power consumption on max CPU load
https://www.savjee.be/2019/12/esp32-tips-to-increase-battery-life/
A

m5Atom Lite IR range

• • alperkal

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21.3k
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I published this video a short while ago https://www.youtube.com/watch?v=V8rmir-Tmy8 you can try the libraries I used. I reckon I got around 10cm range from the sticks but much less from the atoms, you can see in the videos, what range I am successful at.
M

M5Atom I2c

• • Michael1968

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ok...i find out that i have to use SoftwareI2c and the i2c device must have pullup resistors:

#include "SoftwareI2C.h"

SoftwareI2C softwarei2c;

void setup() {
Serial.begin(115200);
softwarei2c.begin(26, 32); // sda, scl
Serial.println("begin to scan...");
}

void loop() {
for (unsigned char i = 1; i <= 127; i++) {
if (softwarei2c.beginTransmission(i)) {
Serial.print("0x");
Serial.println(i, HEX);
while (1); } softwarei2c.endTransmission(); } Serial.println("find nothing"); while (1);
}
C

[SOLVED]M5Stack basic I2C pull-up resistor

• • cepics

6

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6
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9.1k
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C

tnks a lot!!!
K

M5Atom Matrix Firmware flash fail

• • kylebuttress

2

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2
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4.1k
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K

I had to use a windows machine with M5Burner because as much as I tried the Mac version would no work as expected. However I got it flashed back to UIFlow 1.4.5 and got it working now
M

Atom Matrix battery management?

• • m3ftah

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ATOM not build-in power management chip. the schematic is not provided yet
C

M5Stack and I2C distance sensor ks103

• • cepics

2

0
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2
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C

now it works:
/* http://www.dauxi.com/KS10X-V110_EN.pdf 11101000 https://www.arduino.cc/en/Tutorial/SFRRangerReader */ #include <M5Stack.h> #include <Wire.h> #define KS103ADD 0x74 // questo è quello che da lo scanner IIC //#define KS103ADD 0xE8 // questo è quello che da all'inizio il led verde 11101000 back green led Short flash twice will be “1”, slow flash once will be “0” word dist = 0; void setup() { Wire.begin(); // Wire.begin(22, 21);//M5STACK: 22/SCL/GIALLO ,21/SDA/BIANCO Serial.begin(115200); //inizio comando Wire.beginTransmission(KS103ADD); Wire.write(byte(0x02)); Wire.write(0x72); // Invia istruzioni per la riduzione del rumore Wire.endTransmission(); // fine comando delay(2000); } void loop() { // if (Serial.read() == 's') { // while (Serial.read() != 'o') { KS103_read(); Serial.print(dist/10); Serial.print(" cm"); Serial.println(); delay(250); //} //} // delay(1000); } void KS103_read() { // step 1: instruct sensor to read echoes Wire.beginTransmission(KS103ADD); // transmit to device // the address specified in the datasheet is (0xE8) // but i2c adressing uses the high 7 bits so it's (0x74) Wire.write(byte(0x02)); // sets register pointer to echo #1 register (0x02) Wire.write(0xbc); //Range is set to 10m with temperature compensation Wire.endTransmission(); // step 2: wait for readings to happen // delay(1); delay(70); // datasheet suggests at least 65 milliseconds // step 3: instruct sensor to return a particular echo reading Wire.beginTransmission(KS103ADD); // transmit to device Wire.write(byte(0x02)); // sets register pointer to echo #1 register (0x02) Wire.endTransmission(); // stop transmitting // step 4: request reading from sensor Wire.requestFrom(KS103ADD, 2); // request 2 bytes from slave device // step 5: receive reading from sensor if (2 <= Wire.available()) // if two bytes were received { dist = Wire.read(); // receive high byte (overwrites previous reading) dist = dist << 8; // shift high byte to be high 8 bits dist |= Wire.read(); // receive low byte as lower 8 bits } }
C

Atom Light Neopixels

• • colinm1001

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3
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3.0k
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C

OK, thanks, I'll have a look.
V

Uploading to M5STACK BASIC DevKit

• • vibi27

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6
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6.0k
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V

I don't know how to edit the title to put [SOLVED] into it.
J

How do you turn off the m5stack while it's charging?

• • joeybab3

3

2
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3
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13.9k
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Z

Hello,
please, could you help me? What is M5.powerOFF() doing inside? I am using the esp-idf for my projects with M5Stack and I want Power off from software, but I can only deinitialize all of my routines and turn off display. And when I want to powr on again after power button, then the device turn off first.

Thank you.
Vilem
O

Problems with powerOFF() (Guru Meditation)

• • option

4

0
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4
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5.7k
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M

@option pls check the lib version is latest. and confirm the board select m5stack -core
A

wifisetup & machine.rtc in MicroPython

• • akita11

2

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2
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4.4k
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E

RTC works but not ntp_syc- that is a pity
P

Saving images to SD

• • purson

1

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1
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2.5k
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No one has replied
B

m5Stack basic. Wrong colors.

• • borisu

5

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8.5k
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M

hi , did your has upgrade your library version to latest. (m5stack lib version >= 0.2.8)
A

M5stack basic core battery power on issue (ip5306 strange power management)

• • arzaman

28

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28
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121.4k
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C

@ckuehnel said in M5stack basic core battery power on issue (ip5306 strange power management):

Here is a working code example:

/*
Test of IP5306 functions
*/
#include <M5Stack.h>

void setup()
{
// initialize the M5Stack object
M5.begin();
Wire.begin(); // required to access IP5306
M5.Lcd.fillScreen(BLACK);
M5.Lcd.setCursor(0, 10);
M5.Lcd.setTextColor(WHITE);
M5.Lcd.setTextSize(2);
M5.Lcd.printf("IP5306 Function Test\r\n");

if(!M5.Power.canControl())
{
M5.Lcd.setTextColor(RED);
M5.Lcd.printf("No communication with IP5306 chip");
while(1);
}
}

void loop()
{
M5.Lcd.fillRect(0,180,360,60,0);
uint8_t bat = M5.Power.getBatteryLevel();
M5.Lcd.setCursor(0,180);
if (M5.Power.isCharging()) M5.Lcd.printf("Battery is charging\r\n");
else M5.Lcd.printf("Battery is not charging\r\n");
M5.Lcd.printf("Battery Level %d", bat);
M5.Lcd.progressBar(0, 220, 360, 20, bat);
delay(5000);
}

Hi, doesn't compile for me!!!

this is the arduino IDE output:
Arduino: 1.8.7 (Mac OS X), Board: "M5Stack-Core-ESP32, QIO, 80MHz, Default, 921600, None" Build options changed, rebuilding all /Users/AD/Documents/Arduino/libraries/M5Stack/src/utility/Power.cpp: In member function 'void POWER::powerOFF()': /Users/AD/Documents/Arduino/libraries/M5Stack/src/utility/Power.cpp:361:28: error: 'gpio_deep_sleep_hold_dis' was not declared in this scope gpio_deep_sleep_hold_dis(); ^ Multiple libraries were found for "SPI.h" Used: /Users/AD/Documents/Arduino/hardware/espressif/esp32/libraries/SPI Not used: /Users/AD/Documents/Arduino/libraries/SPI Multiple libraries were found for "SD.h" Used: /Users/AD/Documents/Arduino/hardware/espressif/esp32/libraries/SD Not used: /Users/AD/Documents/Arduino/libraries/SD Not used: /private/var/folders/f3/0kf10ljj6sj4q4twsw_vtxrw0000gn/T/AppTranslocation/395E70C5-F1F6-4076-AA11-9C132A2C6ACF/d/Arduino 1.8.7.app/Contents/Java/libraries/SD exit status 1 Error compiling for board M5Stack-Core-ESP32. This report would have more information with "Show verbose output during compilation" option enabled in File -> Preferences.
tnks
C

Stack smashing protect failure!

• • CHB

1

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1
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4.8k
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No one has replied

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