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    Blynk on M5Stack via uiFlow and block-maker

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    • world101W
      world101 @LastCaress
      last edited by

      @lastcaress said in Blynk on M5Stack via uiFlow and block-maker:

      Tried this and got AttributeError "module object has no attribute blynk" :|

      Not sure exactly where it failed for you. Can you provide more detail on how far you got before seeing the error?

      L 1 Reply Last reply Reply Quote 0
      • L
        LastCaress @world101
        last edited by

        @world101 I managed to copy the blinklyb file to the m5stack, and the m5f and m5b files you provided. I think this error refers to :
        blynk = BlynkLib.Blynk(BLYNK_AUTH)
        I don't think it understands this line!
        Thanks

        1 Reply Last reply Reply Quote 0
        • L
          LastCaress
          last edited by

          It manages to import the library, it just doesn't understand that attribute!

          world101W 1 Reply Last reply Reply Quote 0
          • world101W
            world101 @LastCaress
            last edited by world101

            @lastcaress

            If it doesn’t understand that line it may not have imported the library correctly. Did you put it in the /flash/lib directory on the m5stack? Also, just wanted to make sure you are running the latest v1.1.2 firmware.

            Did you paste your Blynk Auth Key into the flow before running it in uiFlow?

            Also, are you able to access the REPL prompt? If not I can show you how. It’s good for troubleshooting.

            1 Reply Last reply Reply Quote 0
            • L
              LastCaress
              last edited by

              I am running the latest firmware and I uploaded the BlynkLib.py file from the git repo you linked using rshell to /flash/lib :P I used a raspbian os to it as I've never been able to use ampy! The import BlynkLib line of code doesn't cause any error. I did paste the auth key :D
              I do not know how to access the repl prompt though!

              1 Reply Last reply Reply Quote 0
              • L
                LastCaress
                last edited by

                So I got hold of a macbook and tried via ampy and.. it works!! I should've tried this before as my attemps at using the blynk python library probably didn't work before because I used rshell and maybe it sends the file in a different format? This is very nice!

                ajb2k3A 1 Reply Last reply Reply Quote 0
                • ajb2k3A
                  ajb2k3 @LastCaress
                  last edited by

                  @lastcaress said in Blynk on M5Stack via uiFlow and block-maker:

                  So I got hold of a macbook and tried via ampy and.. it works!! I should've tried this before as my attemps at using the blynk python library probably didn't work before because I used rshell and maybe it sends the file in a different format? This is very nice!

                  Ampy didn't work on my macbook pro and it took me ages to find out that my pythone was P3 but I hadn't set up the enviroment shell correctly.
                  Glad it works.

                  UIFlow, so easy an adult can learn it!
                  If I don't know it, be patient!
                  I've ether not learned it or am too drunk to remember it!
                  Author of the WIP UIFlow Handbook!
                  M5Black, Go, Stick, Core2, and so much more it cant be fit in here!

                  1 Reply Last reply Reply Quote 0
                  • ajb2k3A
                    ajb2k3
                    last edited by

                    Sweet, I got this to work as well.
                    Looks like something else to add to the project list.

                    UIFlow, so easy an adult can learn it!
                    If I don't know it, be patient!
                    I've ether not learned it or am too drunk to remember it!
                    Author of the WIP UIFlow Handbook!
                    M5Black, Go, Stick, Core2, and so much more it cant be fit in here!

                    1 Reply Last reply Reply Quote 0
                    • world101W
                      world101
                      last edited by world101

                      @ajb2k3, @LastCaress

                      Glad you all got it working. To access REPL, you can do this from the Mac Terminal with the M5Stack connected to a USB port.

                      screen /dev/tty.SLAB_USBtoUART 115200

                      You may not see anything at first, so you can press CTRL+C on the keyboard to drop you into the REPL prompt (>>>). From there, you can do your regular MicroPython commands. For example...

                      >>> os.listdir()
                      ['image_app', 'main.py', 'emoji', 'sys_lib', 'config.py', 'lib', 'res', 'flow.py', 'blocks', 'apps', 'debug.py', 'modeconfig.json', 'boot.py', 'img']
                      >>> os.listdir('lib')
                      ['servo.py', 'square.py', 'step_motor.py', 'm5_pin.py', 'm5bala.py', 'wave.mpy', 'lego_board.py', 'bmp280.mpy', 'dht12.mpy', 'mpu6050.py', 'chunk.mpy', 'pid.py', 'lego.py', 'BlynkLib.py']
                      >>> import BlynkLib
                      
                          ___  __          __
                         / _ )/ /_ _____  / /__
                        / _  / / // / _ \/  '_/
                       /____/_/\_, /_//_/_/\_\
                              /___/ for Python v0.2.0
                      
                      >>> help()
                      Welcome to LoBo MicroPython for the ESP32
                      
                      For online documentation please visit the Wiki pages:
                      https://github.com/loboris/MicroPython_ESP32_psRAM_LoBo/wiki
                      
                      Based on official MicroPython, this port brings many new features:
                      
                       - support for two cores and 4MB SPIRAM (psRAM)
                       - improved 'network' module
                       - greatly improved thread support
                       - support for 3 different internal file systems on top of ESP32 VFS
                       - ESP32 native support for SD Card
                       - built-in FTP & Telnet servers
                       - support for OTA updates
                       - many new and improved hardware access modules implemented in C
                       and many more...
                      
                      Control commands:
                        CTRL-A        -- on a blank line, enter raw REPL mode
                        CTRL-B        -- on a blank line, enter normal REPL mode
                        CTRL-C        -- interrupt a running program
                        CTRL-D        -- on a blank line, do a soft reset of the board
                        CTRL-E        -- on a blank line, enter paste mode
                      
                      For further help on a specific object, type help(obj)
                      For a list of available modules, type help('modules')
                      >>> help('modules')
                      __main__          m5flow/m5mqtt     math              uerrno
                      _thread           m5flow/m5stack    microWebSocket    uhashlib
                      ak8963            m5flow/peripheral microWebSrv       uheapq
                      array             m5flow/simple     microWebTemplate  uio
                      binascii          m5flow/ubutton    micropython       ujson
                      btree             m5flow/unit/adc   mpu6500           uos
                      builtins          m5flow/unit/button                  mpu9250           upip
                      cmath             m5flow/unit/color network           upip_utarfile
                      collections       m5flow/unit/dac   os                upysh
                      display           m5flow/unit/dual_button             pye               urandom
                      errno             m5flow/unit/ext_io                  random            ure
                      freesans20        m5flow/unit/ir    re                urequests
                      functools         m5flow/unit/ncir  select            uselect
                      gc                m5flow/unit/relay socket            usocket
                      hashlib           m5flow/unit/rgb_  ssd1306           ussl
                      heapq             m5flow/unit/tof   ssl               ustruct
                      io                m5flow/units      struct            utime
                      json              m5flow/utils      sys               utimeq
                      logging           m5flow/wifichoose time              uzlib
                      m5base            m5flow/wificonfig tpcalib           websocket
                      m5flow/app_manage m5flow/wifisetup  ubinascii         writer
                      m5flow/i2c_bus    m5ui              ucollections      ymodem
                      m5flow/m5cloud    machine           uctypes           zlib
                      Plus any modules on the filesystem
                      >>> 
                      
                      

                      etc...

                      Or if you don't go into the REPL prompt, but still have the screen session connected, you can see the serial logs from the m5stack. Reboot the M5stack and you should see the Blynk start up, plus some other useful information (network connection, connection to M5cloud, etc.).

                      To exit the screen session press CTRL+A then CTRL+\ then y.

                      1 Reply Last reply Reply Quote 1
                      • world101W
                        world101
                        last edited by

                        By the way, I haven't found a way to import existing m5b files into block-maker.m5stack.com, so here are the ones I created. Feel free to play around with them and even create some new ones! The official Blynk colors are here: http://docs.blynk.cc/#blynk-main-operations-change-widget-properties

                        Blynk Init:
                        0_1549395441904_blynk_init.png

                        import BlynkLib
                        BLYNK_AUTH = ${auth_token}
                        blynk = BlynkLib.Blynk(BLYNK_AUTH)
                        

                        Blynk Run:
                        0_1549395472566_blynk_run.png

                        blynk.run()
                        

                        Uptime:
                        0_1549395486257_uptime.png

                        @blynk.VIRTUAL_READ(${pin})
                        def v${pin}_read_handler():
                            time_val = time.ticks_ms() // 1000
                            blynk.virtual_write(${pin}, time_val)
                            lcd.textClear(${x}, ${y}, '      ', lcd.${bg_color})
                            lcd.print(time_val, ${x}, ${y}, lcd.${fg_color})
                        

                        Slider: (Note, this is slightly different than the tutorial above. I was experimenting with passing a variable into the block. Feel free to adjust it as needed)
                        0_1549395507104_slider.png

                        @blynk.VIRTUAL_WRITE(${pin})
                        def v${pin}_write_handler(value):
                            lcd.textClear(${x}, ${y}, '    ', lcd.${bg_color})
                            ${variable} = '{}'.format(value).strip("['']")
                            lcd.print(${variable}, ${x}, ${y}, lcd.${fg_color}, transparent=True, fixedwidth=True)
                        

                        Push Notification:
                        0_1549395564695_push_notification.png

                        @blynk.VIRTUAL_WRITE(${pin})
                        def v${pin}_write_handler(value):
                            if value:
                                blynk.notify(${text})
                        

                        I'm really interested in how to link blocks together, like the m5stack team did for the MQTT blocks. But I'll start a new thread on that soon.

                        1 Reply Last reply Reply Quote 1
                        • ajb2k3A
                          ajb2k3
                          last edited by

                          Can you pm me your real name as I would like to credit you in my book for all the hard work on M5Blynk

                          UIFlow, so easy an adult can learn it!
                          If I don't know it, be patient!
                          I've ether not learned it or am too drunk to remember it!
                          Author of the WIP UIFlow Handbook!
                          M5Black, Go, Stick, Core2, and so much more it cant be fit in here!

                          1 Reply Last reply Reply Quote 0
                          • K
                            kmo
                            last edited by

                            Very cool! Can't wait to try it out!

                            1 Reply Last reply Reply Quote 0
                            • world101W
                              world101
                              last edited by

                              I just noticed the Blynk developers released a new version 0.2.0 of blynk-library-python on git hub. I seems to have some additional advanced features like

                              • debug logging
                              • custom server
                              • changing heartbeat
                              • connected/disconnected events
                              • generic virtual pin events
                              • BlynkTimer

                              I have not tried this out yet, but plan to in the next week or so. In case you wanted to try the older version of the library, here is the commit:
                              https://github.com/vshymanskyy/blynk-library-python/commit/4cbf641fade72a11e797436a8656ebf28f239801

                              ajb2k3A 1 Reply Last reply Reply Quote 0
                              • ajb2k3A
                                ajb2k3 @world101
                                last edited by

                                @world101 I managed to build a private server on Saturday but having auto startup issues.
                                I’ve tried the guide but still have to manually start the server

                                UIFlow, so easy an adult can learn it!
                                If I don't know it, be patient!
                                I've ether not learned it or am too drunk to remember it!
                                Author of the WIP UIFlow Handbook!
                                M5Black, Go, Stick, Core2, and so much more it cant be fit in here!

                                world101W 1 Reply Last reply Reply Quote 0
                                • world101W
                                  world101 @ajb2k3
                                  last edited by

                                  @ajb2k3 said in Blynk on M5Stack via uiFlow and block-maker:

                                  @world101 I managed to build a private server on Saturday but having auto startup issues.
                                  I’ve tried the guide but still have to manually start the server

                                  What platform did you build the local server on (Linux, RPi, etc)?

                                  ajb2k3A 1 Reply Last reply Reply Quote 0
                                  • ajb2k3A
                                    ajb2k3 @world101
                                    last edited by

                                    @world101 RPI 2B

                                    UIFlow, so easy an adult can learn it!
                                    If I don't know it, be patient!
                                    I've ether not learned it or am too drunk to remember it!
                                    Author of the WIP UIFlow Handbook!
                                    M5Black, Go, Stick, Core2, and so much more it cant be fit in here!

                                    world101W 1 Reply Last reply Reply Quote 0
                                    • world101W
                                      world101 @ajb2k3
                                      last edited by

                                      @ajb2k3

                                      Try the following:

                                      edit the crontab

                                      pi@raspberrypi:~ $ crontab -e
                                      no crontab for pi - using an empty one

                                      Select an editor. To change later, run 'select-editor'.

                                      1. /bin/ed
                                      2. /bin/nano <---- easiest
                                      3. /usr/bin/vim.tiny

                                      Choose 1-3 [2]: 2
                                      Go to the end of the file and add the following command. Do not forget to modify the path to match your installation directory.

                                      @reboot java -jar /home/pi/server-0.23.0.jar -dataFolder /home/pi/Blynk &

                                      Source: https://diyprojects.io/blynk-how-to-install-a-private-local-server-on-raspberry-pi-3-unlimited-energy-test-wemos-dht22/#.XGvrGqROmEc

                                      1 Reply Last reply Reply Quote 0
                                      • ajb2k3A
                                        ajb2k3
                                        last edited by

                                        That’s the one I followed and still not auto loading. Will have another go tonight

                                        UIFlow, so easy an adult can learn it!
                                        If I don't know it, be patient!
                                        I've ether not learned it or am too drunk to remember it!
                                        Author of the WIP UIFlow Handbook!
                                        M5Black, Go, Stick, Core2, and so much more it cant be fit in here!

                                        1 Reply Last reply Reply Quote 0
                                        • K
                                          kmo
                                          last edited by

                                          @world101 Got everything working using UiFlow V1.2!

                                          1 Reply Last reply Reply Quote 0
                                          • A
                                            akshaypatil
                                            last edited by akshaypatil

                                            Hi! I'm a complete beginner learning to use stickC, I managed to figure out Blynk with Arduino, but now, I'd like to do it with uiflow.
                                            Since I have the latest versions of both (blynk.py - 0.2.6 & uiflow - 1.4.5.1), I wanted to know if the procedure is still the same. Also, if there are other reference links/good material to learn about esp32 with python, then do share!
                                            I'm an industrial design student trying to make a battery-powered heated lunchbox for my thesis, which I'd like to control with the phone and also show nice graphics using stickC.
                                            Any help appreciated!
                                            Thank you :)

                                            A 1 Reply Last reply Reply Quote 0
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