Search found 42 matches

by ZKDMun
Fri Jan 20, 2017 3:51 pm
Forum: General Discussion and Questions
Topic: HTTP GET request to a second board
Replies: 2
Views: 1249

Re: HTTP GET request to a second board

After a second ">>> s.connect(("192.168.4.1",80))" I got this:

Code: Select all

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
OSError: [Errno 9] EBADF
by ZKDMun
Thu Jan 19, 2017 9:16 pm
Forum: General Discussion and Questions
Topic: HTTP GET request to a second board
Replies: 2
Views: 1249

HTTP GET request to a second board

I have two ESP8266 flashed with MicroPython. At the moment I try to get a connection between this boards - because later I will send information from one board to another one. I read this two tutorials before: https://docs.micropython.org/en/latest/esp8266/esp8266/tutorial/network_tcp.html https://d...
by ZKDMun
Thu Jan 19, 2017 3:46 pm
Forum: ESP8266 boards
Topic: LCD 1602 - Library
Replies: 47
Views: 19268

Re: LCD 1602 - Library

dhylands wrote: Did you add pullups on the SDA and SCL lines? I2C requires them.
Another question:
Is it necessary to use Pin.PULL_UP?
Can I replace the resistors with Pin.PULL_UP, or is this no replacement for the resistors?
Noob question :/, but I can not understand the meaning behind the Pin.PULL_UP-method...
by ZKDMun
Wed Jan 18, 2017 10:34 pm
Forum: ESP8266 boards
Topic: Unable to connect Adafruit HUZZAH Breakout Board with Terminal
Replies: 9
Views: 2465

Re: Unable to connect Adafruit HUZZAH Breakout Board with Terminal

@dhylands: Yes. That was mistake #1. :oops: I crossed them, and now my wiring is: HUZZAH <-> FTDI232 GND <-> GND V+ <-> VCC TX <-> RX RX <-> TX Many thanks! @deshipu: And this was my mistake #2. I use the 5V option of the FTDI now... and it works fine. Thank you very much, too! And after I did start...
by ZKDMun
Wed Jan 18, 2017 9:15 pm
Forum: ESP8266 boards
Topic: Unable to connect Adafruit HUZZAH Breakout Board with Terminal
Replies: 9
Views: 2465

Re: Unable to connect Adafruit HUZZAH Breakout Board with Terminal

I read this f.a.q. about the board:
https://learn.adafruit.com/adafruit-huz ... /faq#faq-2

Did this mean, that I should use the 5V option in my FDTI-converter and not the 3.3V?
by ZKDMun
Wed Jan 18, 2017 7:15 pm
Forum: ESP8266 boards
Topic: Unable to connect Adafruit HUZZAH Breakout Board with Terminal
Replies: 9
Views: 2465

Re: Unable to connect Adafruit HUZZAH Breakout Board with Terminal

HUZZAH <-> FTDI232 (this one: https://github.com/jandelgado/arduino/w ... -converter)
GND <-> GND
V+ <-> VCC
RX <-> RX
TX <-> TX
"NotConnected" <-> CTS
"NotConnected" <-> DTR (should I connect the last two? how?)
by ZKDMun
Wed Jan 18, 2017 5:18 pm
Forum: ESP8266 boards
Topic: Unable to connect Adafruit HUZZAH Breakout Board with Terminal
Replies: 9
Views: 2465

Re: Unable to connect Adafruit HUZZAH Breakout Board with Terminal

I am using a FTDI232 now. The installation of the driver for this converter was successful. I used this installation guide for windows 7 (my OS): http://www.ftdichip.com/Support/Documents/AppNotes/AN_119_FTDI_Drivers_Installation_Guide_for_Windows7.pdf The FTDI232 is on the 3.3V-mode - not on the 5V...
by ZKDMun
Wed Jan 18, 2017 4:01 pm
Forum: ESP8266 boards
Topic: Unable to connect Adafruit HUZZAH Breakout Board with Terminal
Replies: 9
Views: 2465

Unable to connect Adafruit HUZZAH Breakout Board with Terminal

Hi, I have a Adafruit HUZZAH Breakout as an second ESP8266 now. With my NodeMCU and TeraTerm as an terminal program I didn't have any problems. But I can not get any serial connections with the HUZZAH. Is it possible to connect this board with a terminal programm, too? Or is it not possible because ...
by ZKDMun
Sun Jan 15, 2017 2:38 pm
Forum: ESP8266 boards
Topic: LCD 1602 - Library
Replies: 47
Views: 19268

Re: LCD 1602 - Library

Found the problem: The wiring with the 4.7k ohm resistors like the wiring on my sketch I posted before was ok... but I am using a long breadboard and I am a newbie - my lesson of the day was that the Vcc- and die GND-Line of these long breadboards are interrupted at the middle of the boards - that w...
by ZKDMun
Sat Jan 14, 2017 6:42 pm
Forum: ESP8266 boards
Topic: LCD 1602 - Library
Replies: 47
Views: 19268

Re: LCD 1602 - Library

me just a single row on the lcd That's the typical power-on & not-cleared-yet state. But I just need to power on the LCD - there is no connection to REPL necessary, the row appears every time the LCD get some power. How can I solve this problem and clear the display? I have tried the code from mcau...