ESP8266 Community Forum

- Sat Sep 19, 2015 10:42 am #29441 In an effort to catch up with the rest of you all, with this awesome new(?) module, I've come to a newbie, and maybe basic question. The first module I played with was an ESP 5 which for all intents and purposes was just a wifi interface to connect with arduino(s). There were no gpio pins brought out for usage. In retrospect it would seem like a bad choice but the modules available now weren't available then. I am now playing with an ESP 7, and have successfully flashed nodemcu to it. As I understand it I can send lua statements to it or upload sketches to it via various methods. Ok so basic question is; In it's oem state, there were at commands, to configure the various operating parameters, like baud rate, etc. Do we loose that capability once nodemcu is loaded? Is there something in the nodemcu structure that replaces the at commands?

- Sun Sep 20, 2015 11:26 pm #29544 check out http://www.nodemcu.com/docs/uart-module/

This will show you API's for nodemcu.

There is a lot of information out there but it seems so scattered on really how to accomplish your particular goal I feel your pain and NO ONE really cares to help out with these things you are either too stupid because you lack the knowledge, too much of a hassle because you don't answer a question in the proper syntax, too lazy because the information is already out there but you have to piece it together... This is surely not a large community effort people have been fairly protective of anything that would make life easy it almost seems as if a lot of people are developing with this board thinking they are going to strike it rich making something... I can't share I could make millions! Look smart. Be famous!
pffffft and then the alarm clock goes off and your stuck at your 6-3 still it was all a wet dream!

Anyhow there is info on AT commands on this forum as well don't have the link to cite but it is here wish you the best not the most knowledgeable guy out here but hope this helped possibly.

This guy has been very helpful releasing this book but he does not go into detail much with LUA stuff which to me was a bummer but you can learn a lot from this book either way! http://neilkolban.com/tech/wp-content/u ... r-2015.pdf

Helpful? Donate To help support Mike http://www.esp8266basic.com click the donate button lets keep this project going and hope we can get the ESP32 in the mix. BEGINNERS GUIDE HERE http://www.esp8266.com/viewtopic.php?f=40&t=6732

Where I buy my ESP8266 boards from... (Banggood)

- Mon Sep 21, 2015 12:31 am #29552 Thanks for the link, I did see that just before i read your reply. On very quick scan through, I didn't see much on nodemcu (the book that is), but again it was a quick scan. In an effort to spread knowledge I've tried to share experiences no matter how remedial the"gurus" feel they are. Someone may just get a little help just from reading it. Everyone starts out in life with little knowledge. Some knowledge is gained through formal training; most through experience. As Wernher von Braun said "Basic research is what I'm doing, when I don't know what I'm doing". .....Cheers

- Mon Sep 21, 2015 4:20 am #29560 Hi, I think members only get grumpy when the same questions are asked day after day, when an hour looking through the forum or a little effort on google would answer the question. When you have worked out the basics and have a problem, members go out of their way to help.

Ok so basic question is; In it's oem state, there were at commands, to configure the various operating parameters, like baud rate, etc. Do we loose that capability once nodemcu is loaded? Is there something in the nodemcu structure that replaces the at commands?

Yes - this should answer some questions https://github.com/nodemcu/nodemcu-firmware/wiki/nodemcu_api_en
With regard to changing baud rate look at this command "uart.setup()"