Cores

• B

  esp now between gray core and stick
  • bigpotatobrain

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  I use this code in stickc as esp receiver for debug. And on other atom lite i use only broadcast datablock with convert to str block with my message. And its works.
• 

  CoreINK screen update
  • aerolite

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• G

  M5Paper Shutdown() / Deep Sleep / Wakeup
  • grundprinzip

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  As I promised here at end of my post under another thread, the shutdown() is rather buggy in the way awakening is performed. I'll describe here what I experienced. Anyway one should take this advice of @felmue in account. There are different shutdown() overload variations and here bugs or weird things I found. My goal was holding the M5Paper as much as possible sleeping, but at intervals of every full 5 minutes he should awake for about 10 to 15 seconds, perform some tasks (sensors) and go again sleeping to the next full 5-minute moment. overload-2 int shutdown( int seconds ); Even if I calc enough seconds to next 5-minute moment, it seems impossible to stay asleep for remaining 5 minutes. Every 3th minute it is awakening too. This consumes unnecessary double battery power. So where I want to have this wake up schedule: hh:00 hh:05 hh:10 hh:15 hh:20 ...and so on... I get this wake up schedule: hh:00 hh:03 hh:05 hh:08 hh:10 hh:13 hh:15 hh:18 hh:20 ...and so on... This overload-2 has no problems by passing the midnight moment. overload-3 int shutdown( const rtc_time_t &RTC_TimeStruct ); This variation works best. Passing midnight (so date change) is no problem but 24:00u should be given als 00:00u. overload-4 int shutdown( const rtc_date_t &RTC_DateStruct, const rtc_time_t &RTC_TimeStruct ); is working, but passing midnight in a way to set awake time at 00:00h and increasing the date-parameter does NOT work! Also 24:00u without increasing the date does NOT work. The only way to pass midnight is awaking just some seconds before midnight and stay awake till after midnight, do the things that has to be done (sample sensors) and go asleep for remaining period (in my case to 00:05u). I hope others can take advantage of this info.
• D

  M5Paper wakeup cause
  • dov

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  @felmue Hello Felix, No, didn't try rename rtc. What difference should it make? (In C++ rtc and RTC are different identifiers, is n't it). The reason for introduction of the own internal rtc of the ESP32 was looking for a simple way to set the system clock from the M5Paper RTC after awakening and without connecting to WiFi (this is very time- and battery-consuming). The weird thing is: syncing with NTP is rather simple in ESP32-Arduino environment, but just setting the system time equal to the 'external' BM8563 RTC-time is more complicated. There is no simple routine. I found some not so elegant way with mktime(). Another point: I discovered bugs with awakening the M5Paper when this awakening moment should be exactly at midnight: so at 24:00u or 00:00u. See a next post (if I find time to describe).
• I

  Multicore programming for M5Stack
  • iamashish

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  @iamashish This guy shows how to use 2 cores with arduino https://youtu.be/9vvobRfFOwk
• P

  M5Paper blank display
  • Powersoft

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  @m5stack thnx, I solved this problem - indeed I had to load board definitions Also this YT-video 'M5Paper Seasons Greetings Display' was helpful: https://youtu.be/Tjz4fGRn8fo
• K

  no matching function for call to 'Ink_Sprite::drawString(int, int, String&)'
  • kalon33

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• T

  M5Paper EPD power consumption
  • tatar-andrei

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  B

  Use : void GT911::updateB() // as update but modify by Bricox ... { r814E.reads = read(0x814E); // "read struct" AND these 5 explicite bits fields if(r814E.status) { if(r814E.touchPts != 0) { _is_finger_up = false; _num = r814E.touchPts; // "_num" could be definitively replaced by "r814E.touchPts" uint8_t data[num * 8]; read(0x8150, data, _num * 8); // read block of all fingers , up to 5*8 bytes for(int j = 0; j < _num; j++) // for each finger { uint8_t *buf = data + j * 8;// address base of each finger Sorry, comments that were aligned, in my notepad++ by multiple Tabs, are no longer aligned in the snippets viewer
• M

  M5Paper: Screenshot function
  • murraypaul

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  Thanks Paul for this tool, it is working great.!! 
• J

  M5paper touchscreen wakeup from sleep
  • Joonas

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  Hello @Joonas you are welcome. I am happy to hear you got it working to your liking. Cheers Felix
• M

  M5Paper: Support for multiple loaded TTF fonts
  • murraypaul

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  great tnx !
• P

  M5Paper text
  • Powersoft

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  M

  @medy I've never used micropython, so I can't help with that.
• S

  Where is M5Paper API Key?
  • satcomjimmy

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  When you install UIFlow and finish setting up the wifi, the API key will be displayed on the screen along with the mode and the network you have connected the device to.
• M

  M5Paper: Warning when using multiple canvases
  • murraypaul

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  Hello @murraypaul thank you very much for the detailed explanation. I appreciate it. Cheers Felix
• P

  M5Paper partial Update Canvas
  core • • Powersoft

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  As mentioned in the other thread, the missing step is transferring the canvas framebuffer to the EPD. If your loop function is changed as below, it works as you expect. void loop() { for (int i=1; i<7; i++) { canvas1.drawString(testString[i],20,20); /* m5epd_err_t UpdateArea(uint16_t x, uint16_t y, uint16_t w, uint16_t h, m5epd_update_mode_t mode); */ M5.EPD.WriteFullGram4bpp((uint8_t*)canvas1.frameBuffer()); M5.EPD.UpdateArea(0,0,100,100,UPDATE_MODE_GL16); delay(1000); } }
• M

  M5Paper stuck in M5.begin();
  • michael_o

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  Hello @michael_o you are welcome. I am glad to hear you got it working and thank you for reporting back here. Cheers Felix
• K

  Error compilling with the Arduino
  • kobyp7

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• T

  flash status
  • TT

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  I found the following documents. Command description https://github.com/espressif/esptool/wiki/Advanced-Commands#write_flash_status Source code https://github.com/espressif/esptool/blob/master/esptool.py L3499 def write_flash_status(esp, args) GD25Q32C datasheet http://www.elm-tech.com/ja/products/spi-flash-memory/gd25q32/gd25q32.pdf
• K

  M5Paper and API Key
  • k33g

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  @world101 said in M5Paper and API Key: @ajb2k3 Actually, most of the time when I flash new firmware with M5Burner, it does assign a new API key to my device. Maybe that is because I always erase the flash before burning the firmware. I just tried it and it gave me a new API key. @k33g give it a try. The Erase button is in the upper right corner of M5Burner. Then burn the latest M5Paper firmware. I thought i was supposed to but for me, lately, it looked to always generate the same api.
• P

  UpdateArea
  • Powersoft

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