UiFlow 2.0 discuss(how-to, bug, feature request or sometings)

[hacxx]

Thanks for sharing the UiFlow 2.0 resources! I appreciate having a dedicated space for bugs, how-tos, and feature requests. Does anyone have tips on avoiding common firmware burning errors, especially with account binding? Also curious if there’s a timeline for the full API docs release. Looking forward to seeing how this evolves!

[thecuri]

I recently los all my private cloud projects....is there a way to get them back from your servers?

[zhumingqi]

I used UIFlow2 to devleop a simple UI demo, and I monitor the free memory with gc.mem_free(). I found the free memory reduced continiously though I called gc.collect() every loop. Finally, the UI can not update again, but the loop still was running.

[zhumingqi]

I tested more UI design. And I found that the memory leak only happens when I use image component and switch images frequently. Is that a UIFlow2.3.3 bug or my design is incorrect?

[zhumingqi]

Today, I updated the UIFlow to V2.3.4, and burned V2.3.4 firmware as well. Then I tested that image component again with M5GFX in UIFlow 2.3.4. But the issue still exists. After I switch two JPG pics with one image component for sometime, the memory will reduced continiously. Finally, the system will break out. And I try to use gc.collect() after every drawImage(), but it's not useful.
Here is my design and python code:
import os, sys, io, gc
import M5
from M5 import *

ImageSwitchFlag = None

def GcCollectAndPrint():
global ImageSwitchFlag
gc.collect()
print(gc.mem_free())
pass

def btnA_wasClicked_event(state):
global ImageSwitchFlag
if ImageSwitchFlag == 0:
M5.Lcd.drawImage("/flash/res/img/RotaryBGBacklight.jpg", 0, 0)
GcCollectAndPrint()
ImageSwitchFlag = 1
elif ImageSwitchFlag == 1:
M5.Lcd.drawImage("/flash/res/img/RotaryBGBT.jpg", 0, 0)
GcCollectAndPrint()
ImageSwitchFlag = 0

def setup():
global ImageSwitchFlag

M5.begin()
Widgets.fillScreen(0x000000)

BtnA.setCallback(type=BtnA.CB_TYPE.WAS_CLICKED, cb=btnA_wasClicked_event)

ImageSwitchFlag = 0

def loop():
global ImageSwitchFlag
M5.update()

if name == 'main':
try:
setup()
while True:
loop()
except (Exception, KeyboardInterrupt) as e:
try:
from utility import print_error_msg
print_error_msg(e)
except ImportError:
print("please update to latest firmware")******

[Schwibach]

I wrote in another thread about my Sync... 0% problem.

I am pretty sure now that it is a bug. I does not matter which program I use. I can run them from UIFlow 2.0. But as soon as I download a program, I will get the Sync... 0%

Also, if I burn firmware without selecting startup, it will not even connect to UIFlow 2.0.

I would really appreciate any guidance you could give.

[otosan-maker]

I have found a bug in MQTT software. When I subscrive to a topic, the python code creates the subscription at the beggining of the setup code, before it connects to wifi and mqtt.

Here is the sample:
def setup():
global page0, label0, LTemp, label1, temperatura, slider0, button0, off, mqtt_client, wlan, rotary
mqtt_client.subscribe('termostato/temperatura', mqtt_termostato_temperatura_event, qos=0)

M5.begin()
m5ui.init()
page0 = m5ui.M5Page(bg_c=0xffffff)
label0 = m5ui.M5Label("Umbral", x=30, y=81, text_c=0x85231b, bg_c=0x302c2c, bg_opa=0, font=lv.font_montserrat_24, parent=page0)
LTemp = m5ui.M5Label("Temperatura:", x=41, y=39, text_c=0x000000, bg_c=0xffffff, bg_opa=0, font=lv.font_montserrat_14, parent=page0)
label1 = m5ui.M5Label("19,0", x=152, y=81, text_c=0x85231b, bg_c=0xffffff, bg_opa=0, font=lv.font_montserrat_24, parent=page0)
temperatura = m5ui.M5Label("00.00", x=141, y=39, text_c=0x000000, bg_c=0xffffff, bg_opa=0, font=lv.font_montserrat_14, parent=page0)
slider0 = m5ui.M5Slider(x=38, y=119, w=160, h=22, mode=lv.slider.MODE.NORMAL, min_value=190, max_value=290, value=210, bg_c=0x115e9f, color=0x2c90e4, parent=page0)
button0 = m5ui.M5Button(text="Set", x=54, y=172, bg_c=0x2196f3, text_c=0xffffff, font=lv.font_montserrat_14, parent=page0)
off = m5ui.M5Button(text="OFF", x=124, y=171, bg_c=0xf36021, text_c=0xffffff, font=lv.font_montserrat_14, parent=page0)

off.add_event_cb(off_event_handler, lv.EVENT.ALL, None)
BtnA.setCallback(type=BtnA.CB_TYPE.WAS_CLICKED, cb=btnA_wasClicked_event)
slider0.add_event_cb(slider0_event_handler, lv.EVENT.ALL, None)
button0.add_event_cb(button0_event_handler, lv.EVENT.ALL, None)

page0.screen_load()
wlan = network.WLAN(network.STA_IF)
rotary = Rotary()
wlan.connect('bencab', 'arrabal6')
rotary.set_rotary_value(19)
mqtt_client = MQTTClient('m5termostato', '192.168.1.34', port=1883, user='user', password='pass', keepalive=33149)
label1.set_text(str((slider0.get_value()) / 10))

[otosan-maker]

[Amani4791]

Hi there,

I updated firmware on my Tab5 and installed UiFlow 2.0 V 2.4.0.
I hoped for fixed UI libs, LVGL (M5UI) is not working for me:
If I use pictures for button graphics (<30kB) hiding/ showing them to get 2 state feedback is very, very slow!
The same graphics work fine/ fluent with old M5GFX, so I assume there must be a bug?

Also: it seems that Wifi is not working anymore with V2.4.0: cannot get http calls.
(also normally on booting Tab5 shows UIFlow settings page, with V2.4.0 not anymore and if I download project it's not booting...

Hopefully you can fix it soon, I hoped to get something running over Christmas holidays ;-)

Thanks a lot,
Kind regards from Switzerland!
Stephan

[GuerillaPlanter]

Thank you for the M5Stack devices and coding tools. This community forum has been a great help too. I have been successfully using UiFlow2 to create code for a Cardputer. But I think there is a bug in the UiFlow2 web UI and/or m5f2 file format.

THIS WORKS: I can save to the cloud, save the project to a local file, and reimport that file, when the script is like:

sTestString = None

def setup():
  global sTestString

  M5.begin()
  Widgets.fillScreen(0x000000)

  sTestString = 'hello'

def loop():
  global sTestString
  M5.update()

THIS DOESN'T WORK: If I edit it and assign a particular more complex value to the string, I cannot save to the cloud, nor reimport a file saved locally:

sTestString = 'OL,1,RW7###jp0 55  j"#k#!7##ih###4up j`%##7#'

This string happens to be a line from a teletext page .tti file, which includes some display control codes. Here is a screenshot of the code which can't be saved to the cloud or reimported, in the UiFlow2 UI:

Decoding this string's value is:

\u004f\u004c\u002c\u0031\u002c\u001b\u0052\u007f\u001b\u0057\u0037\u0023\u0023\u0023\u006a\u0070\u0030\u0020\u0035\u0035\u0020\u0020\u006a\u0022\u0023\u006b\u0023\u0021\u0037\u0023\u0023\u0069\u0068\u0023\u0023\u0023\u0034\u0075\u0070\u0020\u006a\u0060\u0025\u0023\u0023\u0037\u0023

While the script cannot be saved to the cloud (there is no response), the project can be saved to a local file. In the .m5f2 project file, the relevant saved value is:

<field name=\"VAR\" id=\"usN/c#7FD;q`ieH|V~5K\">sTestString</field><value name=\"VALUE\"><block type=\"text\" id=\"ap8ErHQgaUZ`^d-W-%_I\"><field name=\"TEXT\">OL,1,\u001bR\u001bW7###jp0 55  j\"#k#!7##ih###4up j`%##7#</field></block></value>

This local file cannot then by imported again into UiFlow2, giving an "error opening file" message:

I believe the problem is related to some unicode characters rather than the " character.