Search found 59 matches

by philwilkinson40
Sun Mar 10, 2019 12:59 am
Forum: General Discussion and Questions
Topic: size of object
Replies: 1
Views: 211

size of object

Is there an equivalent of sys.getsizeof() in micropython? I am looking to check the size of various objects prior to sending data across a LPWAN from a remote IOT device. If the size is too large I may split the data or save to a local SD card. If this is not implemented, is there a way I can obtain...
by philwilkinson40
Fri Feb 15, 2019 4:30 am
Forum: ESP8266 boards
Topic: [Solved] NodeMCU boot loop after fresh install
Replies: 8
Views: 752

Re: NodeMCU boot loop after fresh install

Not sure, it appears it is the boot that will not work if the dual I/O option is not selected during flash.
Did it work in the end?
by philwilkinson40
Thu Feb 14, 2019 12:44 pm
Forum: ESP8266 boards
Topic: [Solved] NodeMCU boot loop after fresh install
Replies: 8
Views: 752

Re: NodeMCU boot loop after fresh install

try

Code: Select all

esptool.py --port /dev/ttyUSB0 --baud 460800 write_flash --flash_size=detect -fm dio 0 esp8266-20190125-v1.10.bin
note the additional -fm dio option on esptool
this is mentioned in the getting started tutorial
I just tried this on my Node MCU and it flashed and started fine.
by philwilkinson40
Fri Feb 08, 2019 1:55 pm
Forum: Programs, Libraries and Tools
Topic: rshell 0.0.17 released
Replies: 3
Views: 503

Re: rshell 0.0.17 released

no more defining buffer sizes on the esp8266, just define the port and it just starts!
Great tool Dave,
many, many thanks for starting and maintaining this.
by philwilkinson40
Thu Jan 17, 2019 4:32 pm
Forum: ESP8266 boards
Topic: howto: Control passive buzzer
Replies: 3
Views: 713

Re: howto: Control passive buzzer

PWM. This tutorial should give you a helping hand if you have an esp board. Esp boards do have a lower frequency limit, if you need higher try the pyboard.
https://micropython-on-wemos-d1-mini.re ... ml#beepers
by philwilkinson40
Thu Jan 03, 2019 12:28 pm
Forum: General Discussion and Questions
Topic: Pyboard D - demo
Replies: 3
Views: 794

Re: Pyboard D - demo

the specs at 25' on the video may give you an answer

10uA during deepsleep. Try running a pi zero on batteries for a while and see how long you last.
by philwilkinson40
Thu Jan 03, 2019 11:28 am
Forum: General Discussion and Questions
Topic: Pyboard D - demo
Replies: 3
Views: 794

Pyboard D - demo

Christine's talk is available on YouTube where she demonstrates the new Pyboard D and presents the specs.

All we need now Damien, is a release date!
by philwilkinson40
Sun Dec 09, 2018 4:58 am
Forum: General Discussion and Questions
Topic: Micropython as Arduino killer
Replies: 24
Views: 3737

Re: Micropython as Arduino killer

... As for libraries, I think we all know that this is an area Micropython could improve. They tend to be scattered across github and the best option to find what you need is usually to search, then if needed post, in this forum! Perhaps this interest is a trigger to pull together the libraries in ...
by philwilkinson40
Sun Dec 09, 2018 3:58 am
Forum: General Discussion and Questions
Topic: Adafruit tinyLoRa LoRaWAN library
Replies: 0
Views: 489

Adafruit tinyLoRa LoRaWAN library

Adafruit has just released a new TinyLoRa library that allows access to TheThingsNetwork using LoRaWAN. The library, of course, uses their Circuitpython fork, however this is relatively easy to map to Micropython. The RFM95 radio transceiver is used. For those with an interest in TheThingsNetwork , ...
by philwilkinson40
Tue Nov 27, 2018 2:15 pm
Forum: ESP8266 boards
Topic: Problems connecting to ESP8266 with picocom
Replies: 7
Views: 810

Re: Problems connecting to ESP8266 with picocom

like so many things related to Micropython, you can find amazing things by digging in this forum! post https://forum.micropython.org/viewtopic.php?t=3860 covers a few variants of ESP boards, including yours. I recall seeing a similar thread covering lots of ESP32 variants but I cannot find it now!