Pat

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• Pico / ESP8266 newbie (idiot?) question !

  @Pat started

  • 26 comments
  • 8,824 views

  @Gordon replied
• Pico / ESP8266 newbie (idiot?) question !

  in General • 9 years, 6 months

  

  I'm sorry. Lost. Too newbie, I suspect ! This ?

  Serial2.setup(9600, { rx: A3, tx : A2 });
  var wifi = require("ESP8266WiFi");
  wifi.at.cmd("AT+GMR\r\n",1000,console.lo­g);

  Don't understand how (without the connect) I talk down Serial2.
  Anyway, this code errors with ...

  Uncaught Error: Field or method "cmd" does not already exist, and can't create it on undefined
  at line 1 col 8
  wifi.at.cmd("AT+GMR\r\n",1000,console.lo­g);

• Pico / ESP8266 newbie (idiot?) question !

  in General • 9 years, 6 months

  

  Thanks !

  Tried this ..

  Serial2.setup(9600, { rx: A3, tx : A2 });
  wlan.at.cmd("AT+GMR\r\n",1000,console.lo­g);

  Got

  echo(0);
  =undefined
  Uncaught Error: Field or method "at" does not already exist, and can't create it on undefined
  at line 1 col 5
  wlan.at.cmd("AT+GMR\r\n",1000,console.lo­g);

  Have I got the right firmware ? Is there a special build to support the 8266 ?

• Pico / ESP8266 newbie (idiot?) question !

  in General • 9 years, 6 months

  

  I'm not getting out of the starting blocks with this.

  With this simple code

  Serial2.setup(9600, { rx: A3, tx : A2 });
  var wifi = require("ESP8266WiFi").connect(Serial2,
     function(err) {if (err) throw err;wifi.getAPs(print);});
  

  I get ..

  >reset();
  =undefined
   _____                 _
  |   __|___ ___ ___ _ _|_|___ ___
  |   __|_ -| . |  _| | | |   | . |
  |_____|___|  _|_| |___|_|_|_|___|
            |_| http://espruino.com
   1v79 Copyright 2015 G.Williams
  >echo(0);
  =undefined
  >Uncaught No 'ready' after AT+RST
   at line 1 col 17
  {if (err) throw err;wifi.getAPs(print);}
                   ^
  in function "a" called from line 1 col 100
  ...a("No 'ready' after AT+RST");else return c}
                                 ^
  in function "b" called from line 1 col 16
  {c=void 0;b&&b()}
                  ^
  in function called from system
   
  

  So it looks like I am not even talking to the 8266. Cabling is Ok. I have a 47uF cap across the power lines. Cabling possibly a bit hacky, have the 8266 board attached via header cable to breadboard where the Pico is plugged in. Have checked usual shorts and that all the pins are happy. They are. And that

  URXD -> Pico A2
  UTXD _> Pico A3
  VCC -> +3.3
  GND -> GND
  CH_RD -> +3.3 (is this right? permanently tied to +3.3?)

  My iPhone is actually seeing a WiFi Network called ESP8266 appear when I boot, though. So I guess the module is alive. When it boots, I see a steady red led on the board, and a couple of flashes from the blue led.

  Have tried 115,200 as baud rate too. Same problem.

  Any ideas please ?

  Thanks!

  Pat

• CC3000 initialisation and/or timeout issues

  @Pat started

  • 25 comments
  • 10,412 views

  @Gordon replied
• WIZnet WIZ550io

  @Pat started

  • 116 comments
  • 41,947 views

  @Gordon replied
• HM-10 BLE and Espruino and IPhone/IoS

  @Pat started

  • 4 comments
  • 5,119 views

  @lavamantis replied
• Function Expressions in JavaScript

  @Pat started

  • 3 comments
  • 3,001 views

  @Pat replied
• Function Expressions in JavaScript

  in JavaScript • 10 years, 6 months

  

  Hi, this is incredibly kind and very helpful. Fog begins to clear :)

  I think a hacking session or 10 will make this stick eventually!

  A million thanks.

  Pat

• Function Expressions in JavaScript

  in JavaScript • 10 years, 6 months

  

  Is there anyone here who can point me at a really good introduction to function expressions in JavaScript. I have a basic understanding now, but am constantly tripping up and much of the example code here relies on this. As some fundamental level, I am failing to 'get it' !

  TIA

  Pat