Cores

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  Problems flashing and connecting ATOM Lite on Catalina 10.15.5 (19F101)
  • rhumbertgz

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  Hi @m5stack you could pip install a pyserial module to solve it. I tried that but the problem persists. As a quick fix, I just flashed it using a window virtual machine. the LED always RED? which program are you use? Yes, but after I flashed the new firmware everything is behaving well. which program are you use? It turned RED, after I tried to flash it with the newer esptool (2.8) as I showed in my initial topic we will fix this bug in next version. 🤞🏻 Have a nice day
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  M5Stack not powering up
  • SatishBoddu

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  @m5stack Ah Thank you! I used Easy Loader and updated the firmware! Your help is awesome! I can see the device working now.
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  Atom Matrix LED power clarification
  • pnewb

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  @robalstona excellent. Thank you for the clarification. It’s logical, and I agree that I don’t require anything higher, but I wanted to make sure for safety’s sake.
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  Atom Matrix hardware details, power input?
  • steve_j83

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  @steve_j83 voltage input range 4.5~5.2V . for the time being don't open source the schematic. if you just want the know about the pin map you could check the sticker on it back site.
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  This topic is deleted!
  • oha2ca

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  Atom Lite - Serial Port access
  • PlastiBots

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  @reaper7 said in Atom Lite - Serial Port access: Serial1.begin(115200, SERIAL_8N1, 32, 26); Thanks. Tried that and causes a crash. I thinned out my code to bare min and this can replicate the crash (sorry not sure if this site has <code> tags. Crash details are further down, but it looks like an issue with the Nextion library. Challenge is this library works fine on other ESP32s. Only difference here is calling out Seria1 with the defined ports. Usually I have ESP32 boards where I can connect direct to UART1 pins, so no need to do pin mapping. #include <Nextion.h> //PRODUCTION: Use this when using the physical MCU + Nextion TFT LCD Hardware or MCU + Serial Window. #define nextion Serial1 boolean debug = true; //Be sure to set to false when done debugging!! Nextion myNextion(nextion, 115200); //create a Nextion object named myNextion using the nextion serial port @ 115200bps void setup() { Serial.begin(115200); //Standard Serial comms Serial1.begin(115200, SERIAL_8N1, 26, 32); //Comms to Nextion if (debug) {Serial.println(F("Connected. Processing loop..."));} } // END SETUP void loop(){} 000000 A10 : 0x1dd4848c A11 : 0x0000001c A12 : 0x3ffba49c A13 : 0x00000000 A14 : 0x00000000 A15 : 0x00000000 SAR : 0x0000001c EXCCAUSE: 0x0000001c EXCVADDR: 0x1dd4848c LBEG : 0x00000000 LEND : 0x00000000 LCOUNT : 0x00000000 Backtrace: 0x40080f75:0x3ffb1ec0 0x400d1986:0x3ffb1ee0 0x400d1d45:0x3ffb1f00 0x400d0e22:0x3ffb1f40 0x400d0bb9:0x3ffb1f80 0x400d13ab:0x3ffb1fb0 0x40088215:0x3ffb1fd0 Rebooting... ets Jun 8 2016 00:22:57 rst:0xc (SW_CPU_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT) configsip: 188777542, SPIWP:0xee clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00 mode:DIO, clock div:1 load:0x3fff0018,len:4 load:0x3fff001c,len:1216 ho 0 tail 12 room 4 load:0x40078000,len:9720 ho 0 tail 12 room 4 load:0x40080400,len:6352 entry 0x400806b8 Guru Meditation Error: Core 1 panic'ed (LoadProhibited). Exception was unhandled. Core 1 register dump: PC : 0x40080f75 PS : 0x00060530 A0 : 0x800d1989 A1 : 0x3ffb1ec0 A2 : 0x00000020 A3 : 0x00000002 A4 : 0x00000000 A5 : 0x00000001 A6 : 0x00060520 A7 : 0x00000000 A8 : 0x3f405808 A9 : 0x00000000 A10 : 0x1dd4848c A11 : 0x0000001c A12 : 0x3ffba49c A13 : 0x00000000 A14 : 0x00000000 A15 : 0x00000000 SAR : 0x0000001c EXCCAUSE: 0x0000001c EXCVADDR: 0x1dd4848c LBEG : 0x00000000 LEND : 0x00000000 LCOUNT : 0x00000000
• S

  how to calibrate a m5 stack for GPS navigation
  • siddharth

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  Adding a microphone to the Core+Watch kit
  • somedude

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  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.
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  Display on during deep sleep?
  • m5er

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  @m5er During deep sleep the LCD background led draws(a lot of) current. Also you have to refresh your screen 50 times per second The only solution to your problem would be adding an e-ink display which doesn't need any refresh during deep_sleep.
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  ATOM Matrix - basic working Access Point (micropython)
  • Conrad

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  @m5stack UiFlow Version 1.4.5 (Desktop) Issues Pressing </> Python: At any time wipes out any code you have in the edit window, why? Cannot save code, also two methods available to save: Or 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: On startup I get: 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...
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  (SOLVED)Power ATOM Lite
  • cepics

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  thank you.
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  How to save battery with M5StickC
  • takanotume24

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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/
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  m5Atom Lite IR range
  • alperkal

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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.
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  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); }
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  [SOLVED]M5Stack basic I2C pull-up resistor
  • cepics

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  tnks a lot!!!
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  Maximum serial speed limited to 500000 baud?
  • GunterO

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  M5Atom Matrix Firmware flash fail
  • kylebuttress

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  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
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  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

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  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 } }
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  Atom Light Neopixels
  • colinm1001

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  OK, thanks, I'll have a look.