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

    UiFlow 2.0
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    • kurikoK
      kuriko @Calilov330000
      last edited by

      @Calilov330000
      why don't you try a simple laptop/desktop?

      Good morning, and welcome to the Black Mesa Transit System.

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      • D
        Davidalan5757
        last edited by

        Could you unlock from UIFlow 2 the capability to code in micropython…

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        • J
          jpilarski
          last edited by

          I am looking for all of the lcd drawing tools that were available in uiflow1.0. I was making some interactive graphics and I was drawing lines or rectangles in a loop and doing that in uiflow2.0 requires you to first drag out 100 lines in the ui builder which just is too slow. Here are the bloacks I am looking for in uiflow 2.0. How can I do something similar in uiflow 2.0 Screenshot 2025-02-18 235307.png

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          • C
            charlesRD
            last edited by

            Hello,

            I have some difficulties to burn UIFLOW on new devices

            For ATom lite it seems to work but i get ERROR The device type is unknown! on device manager.
            I dont know if it can acces to the wifi. i tried several time to unregister and burn it again, reinstall M5 burner, but it doesn't help.

            It can't connect to my M5 stamp C3, maybe there is a way to make a factory reset on them?

            The previous Atom and Stick set up in february still worked well, and appears with green dot on device manager. when i try to burn it now i get the "unknown type" error and red dot.

            it looks like i am not able anymore to have the same atom running when i burn them today.

            Did i forgot something ?

            Thank you very much,

            Charles

            S 1 Reply Last reply Reply Quote 0
            • Y
              yaleman
              last edited by

              This post is deleted!
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              • S
                sgu @charlesRD
                last edited by

                @charlesRD
                i have similar issues

                the Tab5 does not burn UIFlow at all!

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                • S
                  sgu
                  last edited by

                  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.

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                  • H
                    hacxx Banned
                    last edited by

                    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!

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                    • T
                      thecuri
                      last edited by

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

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                      • Z
                        zhumingqi
                        last edited by

                        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.

                        Z 1 Reply Last reply Reply Quote 0
                        • Z
                          zhumingqi @zhumingqi
                          last edited by

                          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?

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                          • Z
                            zhumingqi
                            last edited by

                            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")******

                            b442ffec-d9ce-4445-898c-4b8ffc3caa82-image.png

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                            • S
                              Schwibach
                              last edited by

                              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.

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                              • O
                                otosan-maker
                                last edited by

                                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))

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                                • O
                                  otosan-maker
                                  last edited by

                                  c8fa1994-6b95-44a3-bd12-2a546e067051-image.png

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