Comments on: MicroPython Programming Basics with ESP32 and ESP8266

By: Alejhandro Navarro

Alejhandro Navarro — Sun, 05 Dec 2021 21:25:57 +0000

I want to use a ESP32 to connect with a UHF readers, I want to use uPython for that, how I can call or import .h files from my main.py?

By: Sara Santos

Sara Santos — Mon, 10 May 2021 13:32:23 +0000

In reply to Colin.

Great!
I’m glad the issue was solved.
Regards,
Sara

By: Colin

Colin — Mon, 10 May 2021 09:08:24 +0000

In reply to Sara Santos.

Hi Sara,
Thanks again for your reply.
I have tried Thonny and this seems to work very well as it allows me to load the code onto the board. I now have an ESP32 reading from a DS18b20, displaying the result on an oled display, sending output to uart and also a flashing light. What more could I ask for?
Many thanks for your help.

best wishes,

Colin

By: Sara Santos

Sara Santos — Sat, 08 May 2021 16:47:53 +0000

In reply to Colin.

Hi.
It doesn’t necessarily need to have something on it. It can be empty without any problem.
You need to make sure that the main.py file is on the device folder. Otherwise, it won’t run by itself.
At the side bar, check that you have a main.py file on the device folder.

It might also be an issue with your IDE, I’m not sure… You may want to try another IDE and see how it goes.
We have a tutorial for Thonny IDE, and VS Code with the PyMakr extension:
https://randomnerdtutorials.com/getting-started-thonny-micropython-python-ide-esp32-esp8266/
https://randomnerdtutorials.com/micropython-esp32-esp8266-vs-code-pymakr/

Regards,
Sara

By: Colin

Colin — Sat, 08 May 2021 15:11:29 +0000

In reply to Sara Santos.

Thank you Sara for your quick response!
I did follow the tutorial but still cannot get the program to run by itself after re-setting. I renamed it ” main.py “and there is a boot.py in the device list. However boot.py is empty (?)
Contents of boot.py:

This file is executed on every boot (including wake-boot from deepsleep)

#import esp
#esp.osdebug(None)
#import webrepl
#webrepl.start()

Surely it should contain some instructions?
I am puzzled!

regards and thanks for your patience,

Colin

By: Sara Santos

Sara Santos — Sat, 08 May 2021 13:34:40 +0000

In reply to Colin.

Hi.
Make sure that you are uploading the code to the board and not just running the code.
Here’s a tutorial about upycraft: https://randomnerdtutorials.com/getting-started-micropython-esp32-esp8266/
Regards,
Sara

By: Colin

Colin — Fri, 07 May 2021 15:52:49 +0000

Hi,
I enjoy your tutorials. Thank you!
I can get ESP32 programs to run in micro python on my Wroom board using uPycraft. However I do not understand how to permanently upload the equivalent of an hex file (as with AVR or Pic processors) so that the program runs by itself. Have I missed something or is this not possible? When I shutdown uPycraft the program stops working.

regards,

Colin

By: JU@NUS

JU@NUS — Sun, 29 Nov 2020 22:53:28 +0000

Hi. I really appreciate your work. I’m starting with uPython and your explanation was very helpful.
Is there any simple GUI to control mi esp32 board ?

By: Sara Santos

Sara Santos — Sun, 21 Oct 2018 15:26:48 +0000

In reply to Henry Smith.

Hi Henry.
Yes, it does.
In the following link you can see in more detail the differences between Python and MicroPython: http://docs.micropython.org/en/latest/genrst/builtin_types.html#
Regards,
Sara 🙂

By: Henry Smith

Henry Smith — Thu, 18 Oct 2018 13:25:02 +0000

Thanks for the article. I have been doing Arduino C++ on a NodeMcu 8266 and it is somewhat limiting. I am quite comfortable with Python and I want to give it a try.

Does MicroPython support LIsts, Tuples and Dictionaries? If so, I’m in.
Thanks