I came across a video last night (lost link) that shows that it should be possible to run ESPnow and WIFI at the same time on an esp32. apparently all you need to do is to set ESPNOW to work on a different channel to the WIFI.

@ajb2k3 Good hint. I will check my router to prevent using the channel I selected as common for the devices.

Digging into this problem I already purchased two LoraWAN.COM bases to transmit values via TTN and use a Core at home as dashboard and Blynk "gateway". But this seems overwhelming right now and currently Flow modules are only working with the older (blue) bases. Hopefully there's an update coming soon.

I'm curious about your use of Blynk and ESPNow within the same program. I think they are overstepping on each other (blocking/flooding) and that is why you implemented a brute force to do the reset every hour. Blynk is selfish on timing and in general, you should always keep your Loop clean with just Blynk.run inside it.

http://help.blynk.cc/en/articles/2091699-keep-your-void-loop-clean
Even though that article is for Arduino, the same concepts with would apply to uiFlow/uPython.

I would also think that if you have Blynk, you don't really need ESPNow (or vice versa), as they somewhat achieve the same thing. Though, I look at ESPNow as more of a point-to-point/multipoint communication protocol between hardware devices and Blynk is good if you want to have a smartphone app for visualizations/control vs. device screens and buttons. However, transmitting and receiving sensor data can be achieved by both protocols, so why duplicate? Again, just curious about your implementation... no disrespect.

For the time being I use a brute force method as workaround, calling Blynk init and sending in a timer hourly and then resetting the StickC+ it's running on. But this method causes stress for a connected relay I'd like to avoid.

There was a problem with a continuous call to blynk.virtual_write. blynk.virtual_write calls _write in class BlynkBLE, _write concatenates the data and sends the data when run() is called. The following code is part of class BlynkBLE.

    def _write(self, data):
        self.bout += data

    def run(self):
        self.process()
        while len(self.bout):
            data = self.bout[:20]
            self.bout = self.bout[20:]
            print('<', data)
            self.tx.value(data)

If you call multiple blynk.virtual_write() in a row as follows, data1 and data2 will be concatenated, and when run() is called, the concatenated data will be sent.

blynk.virtual_write(1, data1)
blynk.virtual_write(2, data2)

In this case, the iOS Blynk app was unable to get the second data. Therefore, I added the call "blynk._blynk.run()" immediately after blynk.virtual_write as shown below.

blynk.virtual_write(1, data1)
blynk._blynk.run()
blynk.virtual_write(2, data2)
blynk._blynk.run()

And the following is the generated Python code for M5Stack Core2.

from m5stack import *
from m5stack_ui import *
from uiflow import *
from ble import blynk

screen = M5Screen()
screen.clean_screen()
screen.set_screen_bg_color(0xFFFFFF)

vr = None
count = None
vw = None
value = None

def blynk_write():
  global vr, count, vw, value
  print('connected')

  pass

def blynk_write():
  global vr, count, vw, value
  print('disconnected')

  pass

def blynk_write(*args):
  global vr, count, vw, value
  vr = args[0]
  count = count + 1
  print([vr, count])
  blynk.virtual_write(int(vr), count)

  pass

def blynk_write(*args):
  global vr, count, vw, value
  vw, value = args[0], args[1]
  print([vw, value])

  pass

blynk.init('Blynk Test', '...token...', blynk.BLE)
blynk.handle_event(blynk_write, 'connected')
blynk.handle_event(blynk_write, 'disconnected')
blynk.handle_event(blynk_write, 'write v*')
blynk.handle_event(blynk_write, 'read v*')
count = 0

I have modified as follows.

• make the event function name unique
• change the order of the arguments in blynk.handle_event

Then, it's works.

from m5stack import *
from m5stack_ui import *
from uiflow import *
from ble import blynk

screen = M5Screen()
screen.clean_screen()
screen.set_screen_bg_color(0xFFFFFF)

vr = None
count = None
vw = None
value = None

def blynk_connected():
  global vr, count, vw, value
  print('connected')

  pass

def blynk_disconnected():
  global vr, count, vw, value
  print('disconnected')

  pass

def blynk_read(*args):
  global vr, count, vw, value
  vr = args[0]
  count = count + 1
  print([vr, count])
  blynk.virtual_write(int(vr), count)

  pass

def blynk_write(*args):
  global vr, count, vw, value
  vw, value = args[0], args[1]
  print([vw, value])

  pass

blynk.init('Blynk Test', 'wbZdMJ8V1QCuYdePAqrlmt4iizSAX1j7', blynk.BLE)
blynk.blynkBLE.ble.config(gap_name='Blynk Test')
blynk.handle_event('connected',    blynk_connected)
blynk.handle_event('disconnected', blynk_disconnected)
blynk.handle_event('write v*',     blynk_write)
blynk.handle_event('read v*',      blynk_read)
count = 0