Search found 20 matches

by rpi_nerd
Fri Sep 01, 2017 2:08 pm
Forum: General Discussion and Questions
Topic: [SOLVED] I2C reliability reading second byte issue
Replies: 2
Views: 938

[SOLVED] I2C reliability reading second byte issue

Been learning how to use i2c under Micropython. I've figured most of it out, but I have a frustrating issue with reliably receiving the second temperature data byte from my temperature sensor. I've even lowered the i2c frequency down to 1KHz and I'm still not receiving the second data byte occasiona...
by rpi_nerd
Thu Aug 17, 2017 11:50 pm
Forum: General Discussion and Questions
Topic: [SOLVED]issue with calling functions from a file
Replies: 2
Views: 898

Re: issue with calling functions from a file

Sorry for the late reply, had an urgent matter to attend to. I took another shot at it a few minutes ago, and now everything works fine; it must have been something stupid on my part (guessing that I didn't tab over correctly for a line of code, or something similar.) I was trying out the first exam...
by rpi_nerd
Thu Aug 17, 2017 1:52 pm
Forum: General Discussion and Questions
Topic: [SOLVED]issue with calling functions from a file
Replies: 2
Views: 898

[SOLVED]issue with calling functions from a file

I've been trying to call a function from a file, having no luck I tried the example from the page: http://wiki.micropython.org/Importing-Modules But even with the example this is what I get: Traceback (most recent call last): File "<stdin>", line 1, in <module> AttributeError: 'module' object has no...
by rpi_nerd
Fri Aug 11, 2017 5:41 pm
Forum: ESP8266 boards
Topic: [SOLVED] unable to get REPL prompt
Replies: 17
Views: 6417

Re: unable to get REPL prompt

SUCCESS! After reading the reply on richarddavison's thread (https://forum.micropython.org/viewtopic.php?f=16&t=3665) , suggesting that the one that I have may have an ESP8285 chip. I tried the instructions provided in the linked thread(adding --flash_mode=dout) and success, I now get the REPL promp...
by rpi_nerd
Thu Aug 10, 2017 10:20 pm
Forum: ESP8266 boards
Topic: [SOLVED] unable to get REPL prompt
Replies: 17
Views: 6417

Re: unable to get REPL prompt

Nope, never found a solution. I did get a refund and ordered a replacement. Will see if that one will work.
by rpi_nerd
Tue Aug 01, 2017 12:09 pm
Forum: ESP8266 boards
Topic: [SOLVED] unable to get REPL prompt
Replies: 17
Views: 6417

Re: unable to get REPL prompt

I tried setting the UART speed to 74880 (and several over baud rates) to see if what I was getting at reset was actually something else other than garbage, but so far have had no luck. Balu, what firmware version worked for you?
by rpi_nerd
Sun Jul 30, 2017 5:59 pm
Forum: ESP8266 boards
Topic: [SOLVED] unable to get REPL prompt
Replies: 17
Views: 6417

Re: unable to get REPL prompt

I've been using the --verify option, and I've been getting verify OK every time.
by rpi_nerd
Sun Jul 30, 2017 1:52 pm
Forum: ESP8266 boards
Topic: [SOLVED] unable to get REPL prompt
Replies: 17
Views: 6417

Re: unable to get REPL prompt

I just checked it under the Arduino IDE and it verified the the flash size is 4MB. Are there any tools available to check if the flash is good/bad?
by rpi_nerd
Sat Jul 29, 2017 8:56 pm
Forum: ESP8266 boards
Topic: [SOLVED] unable to get REPL prompt
Replies: 17
Views: 6417

Re: unable to get REPL prompt

I did specify the baud speed (screen /dev/ttyUSB0 115200).
by rpi_nerd
Sat Jul 29, 2017 2:15 pm
Forum: ESP8266 boards
Topic: [SOLVED] unable to get REPL prompt
Replies: 17
Views: 6417

[SOLVED] unable to get REPL prompt

I have a WeMos D1 Mini V2 board. I'm able to erase the flash and upload firmware to it, but when I try to access it via serial, I get no repose. The best thing I can get is some garbage when I hit the reset button. This is my second board. The first board that I got about a month ago (same board fro...