This worked well for me with pin 21 (trigger) and pin 22 (echo)

https://github.com/rsc1975/micropython-hcsr04

@m5stack

Thank you!

@fonzies83 try this commands

0_1587847750162_IMG_20200425_224437444_HDR~2.jpg

@PhilG1300 the latest Uiflow firmware 1.5.0 is based on micropython v1.12 which introduced a new feature called RMT, https://docs.micropython.org/en/latest/library/esp32.html#rmt it supposedly can generate and receive pulses as low as 12.5ns, I haven't experimented much with this library, but it may serve your purpose. To use those micropython commands you could just paste them into an execute block in your code

I don't know why but, now i have the SD card items in Advanced Menu. May be because i plugged once a SD card ?
The white cross icon to add UNITS is here too.

I ve notice that :
when modification is done with Blocky and i save the file : the saved file is OK,
when the same modification is done with micropython : the file can't be saved.

As if the micropython screen wasn't really a part of the UIflow.
Related to the issue n°4 above ??

U mnie działa bardzo dobrze. Dzięki

@dclaar
I'm using 2 techniques:

Use Notepad++ as an editor. If you name your program *.py, it will highlite the code as in Blockly/Python. You can then copy and paste the code into UIflow (but you cant save them there). So if the code works, I copy and paste the code back into Notepad++ and save it as a *.py file. Using the standard editor programming ESP32 and ESP8266 in microphyton: yPyCraft or Thonny (https://randomnerdtutorials.com/getting-started-micropython-esp32-esp8266/). The UIFlow Python editor probably is a clone of one of these. With these editors you can even do a simple code/syntax check, then copy and paste back and forth as I described with Notepad++.

Unless I’m not understanding it correctly, according to the docs, you would select a pinX from the drop down list and type the pin number (ex: 26) into the Init pin block. Then you can get or set the pin via the other blocks. As far as pin0 through pin5, those seems to be a designator for the pin you are controlling.

BAT = battery

@m5stack I don’t think that would work, I need it to be written to the card in the raw hex value not in string, since it’s another system, that is going to read it, that will need the correct hex values and not the string converted one.

Solved it, it returns the result in Dec, and not in Hex, don't know if there is a way to convert DEC to HEX

0_1586098053769_I2C Scanner simple.png

@jcabad100
A) Even I am facing the same red "Connect Fail" error message every time I try to subscribe. I am using an M5Core Grey and cloudMQTT as a server. My intention is to send data from one M5 to another. The publish statement doesn't give the error whereas the subscribe gives an error every time. Can someone please help me with this?
B) Also, can anyone tell me how can I subscribe to my M5 from cloudmqtt so that I can know if atleast publish works or not?

Hello,

meanwhile it is possible to use the block "analog read pin (34)" from the blockpack "Easy I/O".
So I was able to bild the probram from user M5DOCS just with UIFLOW.

Unfortunally it just shows Numbers between 450 and 600 or so. And it dows not react to any sounds.

This is the python code of the blockly program:

=====
from m5stack import *
from m5ui import *
from uiflow import *
from easyIO import *

setScreenColor(0x222222)

label0 = M5TextBox(122, 84, "Text", lcd.FONT_DejaVu24,0xFFFFFF, rotate=0)

while True:
label0.setText(str(analogRead(34)))
wait_ms(100)
wait_ms(2)

What did I do wrong?

@lukasmaximus

Thanks for the tip. I hadn't thought of that. I thought I would have to construct my own block.

Peter

@fmentiplay the left top hand corner is the UIFlow firmware version. in the "Check update" option. is the Desktop IDE software version . they are diffrence

@ecasti ok. the desktop IDE will update the demo program in next version

@world101 Thanx! After making new topics and setting them to QoS=0, and retain=0, it finally works with many MQTT subscriptions on both M5Stack and M5Stick-C! (1.4.4 and 1.4.5)

(PS! Just changing the old topics that had retain back to no retain, did not work, had to make new ones.)

@m5stack That worked! Thank you!