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

sgu

When Will LVGL be integrated in UIFlow 2 ? I don't see a progress there for many months. The new devices such as Tab5 are useless without LVGL. Programming with UiFlow 2.0 and printing simple lines and squares look very old school.

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.

wmoorefi

I am unable to get BaseX module to work with UI Flow 2.x firmware. I can get it to work with UI Flow 1.x.

RBOUMAN58

I noticed today uiflow2 is 2.4.4 instead of the 2.4.3 as yesterday.Working with a PaperS3 e-paper, my programs crash on missing fonts

AttributeError: type object 'Fonts' has no attribute 'Montserrat24'

Also Montserrat18 is mentioned many times.
These fonts are the fonts used in the prompts/labels on the screeneditor in uiflow2?
Anybody has seen same symptoms, so something wrong with 2.4.4?

RBOUMAN58

@RBOUMAN58
Got the problem solved, burned the 2.4.4 firmware using M5Burner, problems gone... programs are working again