Is it just me or is the forum M5ez (under Software) not (easily) accessible? The name of the forum appears unclickable.

Hi Bob,

I don't check this forum that regularly, so you're kind of lucky I see this. It's best to open an issue on the M5ez github.

As for your question: ez.buttons.poll() should return the key pressed, or an empty string if nothing is pressed, so you are presumably calling it from inside a loop? If you have nothing else to do in that loop and just want the the code to wait for a keypress, use ez.buttons.wait() instead. Let me know if this was not the issue, and in that case maybe show the code.

Rop

@ajb2k3

No it does not: it only works on the 3-Button M5Stack devices.

Hi all,

Sorry to have been away from this for a bit... I just released M5ez version 2.1.0, with the following fixes:

• Canvas scrolling off by default
• Fixed off by one in wifi network handling (#32)
• Added ez.clock.waitForSync()
• Move wire.begin so it doesn't get run when FACES is off

Note that if your code uses scrolling on the canvas, you have to turn that on first using ez.canvas.scroll(true).

Try examples/z-ezTimeLog and you'll see the display scroll. All it does is print the ezTime log info to the canvas instead of the Serial port. If you want to make a menu (which appears to be what you're doing here), just use the menu object, don't work with printing anything to the screen directly. Otherwise maybe explain better what you're trying to do.

(Scrolling does need work, also on the documentation side. See here.)

@brianr It depends on the rest of your program, but normally you would place it in setup(). Then make sure the event function returns 1 to run as often as possible. What that means is that you cannot provide Blynk.run() directly but must make your own function that runs Blynk.run() and returns a uint16_t of value 1

This needs to be more convenient, I know. addEvent() needs another go-over, better documentation and examples, will put that on the list.

Btn is just short for Button. In what context do you see these messages?

Ouch, that is ugly code. But if you absolutely must, replace this bit:

  M5.Lcd.pushRect(80*3,40,80,160,(uint16_t *)(_buf+ c0 * 80 * 160 * 2));
  M5.Lcd.pushRect(80*2,40,80,160,(uint16_t *)(_buf+ c1 * 80 * 160 * 2));
  M5.Lcd.pushRect(80*1,40,80,160,(uint16_t *)(_buf+ c2 * 80 * 160 * 2));
  M5.Lcd.pushRect(80*0,40,80,160,(uint16_t *)(_buf+ c3 * 80 * 160 * 2));

with

  M5.Lcd.pushRect(80*3,40,80,160,(uint16_t *)(_buf+ c0 * 80 * 160 * 2));
  if (count >= 10) M5.Lcd.pushRect(80*2,40,80,160,(uint16_t *)(_buf+ c1 * 80 * 160 * 2));
  if (count >= 100) M5.Lcd.pushRect(80*1,40,80,160,(uint16_t *)(_buf+ c2 * 80 * 160 * 2));
  if (count >= 1000) M5.Lcd.pushRect(80*0,40,80,160,(uint16_t *)(_buf+ c3 * 80 * 160 * 2));

Note that this code will leave 9 digits on the display if the counter wraps around, you might need to put M5.Lcd.clear(WHITE); in there if you want to prevent that, but I didn't do it because it will cause flicker.

Just out of curiosity: what are you trying to do here?

M5ez is a complete and very easy to use programming environment that offers many other nice things. Among them, you can very easily define what happens with short press, long press as well as combinations of two buttons.

M5Stack has the same "EEPROM" (Which is really a simulation that simply uses a small partition in the flash memory.) If I am not mistaken the code you quote should work still on the ESP32 (and thus on the M5Stack).

ESP32's have something called NVM, which stores key-value pairs in another partition of the same flash. In the Arduino world, "Preferences.h" provides a wrapper to use these functions. Have a look here for an example that stores a value (the number of times the ESP was booted) in flash.