Problems with ESP8266 driver

[espruino-discuss3]

Posted at 2015-05-26 by cool_acid

I got my ESP8266 working correctly. I'm able to send requests and create servers, but when I try to get the ESP's IP (using the getIP method) this is what I get. Any ideas?

Uncaught Error: Function "a" not found!
 at line 1 col 38
{return"OK"!=b?a("CIFSR failed: "+b):a(null,c)}
                                      ^
in function "d" called from line 1 col 26
{e=void 0;var b;d&&(b=d(a))?(e=g,d=b):clearTimeout(c);void 0...
                          ^
in function "e" called from line 1 col 291
...f&&(g[f](d),n=!0);n||e&&e(d)}b=b.substr(a+1);"\n"==b[0]&&(b=...
                               ^
in function called from system
Uncaught Error: Function "a" not found!
 at line 1 col 16
{return"OK"!=b?a("CIFSR failed: "+b):a(null,c)}
                ^
in function "d" called from line 1 col 16
{e=void 0;d&&d()}

[espruino-discuss3]

Posted at 2015-05-26 by @gfwilliams

I don't think you're using the function correctly. As the ESP8266 driver is asynchronous it calls the function you give it (and I guess you're not giving it a function as an argument).

You should be doing something like:

wifi.getIP(print); // will print "null, 1.2.3.4"
// or
wifi.getIP(function (err,ip) {
  if (err) { console.log(err); return } // an error...
  console.log("Your IP is "+ip);
});

But something like:

print(wifi.getIP());

will fail - getIP does not itself return the IP address, and there was no callback function supplied so you'll get the Function "a" not found! error.

---

Posted at 2015-05-26 by cool_acid

Duh, that make sense. Thank you, Gordon.