Hi All,
I'm new to the Wemos platform.... I'm working on a simple project that functions as expected with the exception of receiving a DHCP address instead of static IP.
Here's my full code:
#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#include <ESP8266WebServer.h>
#include <ESP8266mDNS.h>
#include <Adafruit_NeoPixel.h>
#include <user_interface.h>
#define NUM_PIXELS 20
Adafruit_NeoPixel pixels(NUM_PIXELS, D2, NEO_GRB | NEO_KHZ800);
MDNSResponder mdns;
os_timer_t osTimer;
// network credentials
const char* ssid = "my_ssid_name";
const char* password = "my_wifi_pass";
////////////////
IPAddress ip(192, 168, 1, 140);
IPAddress gateway(192, 168, 1, 1);
IPAddress subnet(255, 255, 255, 0);
//WiFi.config(ip, gateway, subnet);
/////////////////
int R[13] = {255,255,227,255,255,128,075,000,127,000,127,255,000};
int G[13] = {194,165,066,000,000,000,000,000,255,255,255,255,000};
int B[13] = {000,000,052,000,255,128,130,255,212,000,000,000,000};
int countColors = 0;
int numColors = 12;
// Buttons text colors and initial values
String buttonColor [2] = {"white", "black"};
boolean ColorState [13] = {1,1,1,1,1,1,1,1,1,1,1,1,1}; // initial colors
boolean buttonSparkle = 1;
boolean buttonBrighter = 1;
boolean buttonFaster = 1;
boolean buttonDarker = 1;
boolean buttonSlower = 1;
boolean buttonReset = 1;
int brightValue = 4;
int brightMax = 16; // brightness (1..16)
int waitTimes [16]= {50, 100, 150, 200, 250, 500, 750, 1000, 1500, 2000, 2500, 3000, 5000, 10000, 30000, 60000}; // millis()
int waitTime = 5; // default values
int lastColor = 0;
int foundColor = 0;
int currentColor = 0;
int beginSparkle = 0;
int currentLed = 0;
ESP8266WebServer server(80);
String webPage = "";
void setColor(int Rs, int Gs, int Bs)
{
for (int i = 0; i < NUM_PIXELS; i++)
{
pixels.setPixelColor (i, (Rs * brightValue)/brightMax, (Gs * brightValue)/brightMax, (Bs * brightValue)/brightMax);
}
pixels.show();
}
int nextColor (int lastColor)
{
foundColor = numColors; // nothing found return value
countColors = 0; // count number of searches inside the loop
do
{
currentColor += 1;
countColors += 1;
if (currentColor>numColors) {currentColor=0;}
if (ColorState[currentColor]) {foundColor=currentColor;}
}
while (currentColor != lastColor && foundColor == numColors && countColors < numColors+1);
return (foundColor);
}
// interrupt os-timer
void timerCallback(void *pArg)
{
if (!buttonSparkle)
{
// Sparkle Off
currentColor = nextColor (lastColor);
if (lastColor != currentColor)
{
setColor (R[currentColor], G[currentColor], B[currentColor]);
lastColor = currentColor;
}
}
else
{
// Sparkle
beginSparkle += 1; // Startposition for first color
if (beginSparkle>numColors-1) {beginSparkle=0;}
currentColor = 0; // Begin with first color in array
for (int x = 0; x < NUM_PIXELS; x++)
{
currentColor = nextColor (lastColor);
lastColor = currentColor;
currentLed = beginSparkle + x;
if (currentLed >= NUM_PIXELS)
{
currentLed = currentLed - NUM_PIXELS;
}
pixels.setPixelColor (currentLed, (R[currentColor] * brightValue)/brightMax, (G[currentColor] * brightValue)/brightMax, (B[currentColor] * brightValue)/brightMax);
}
pixels.show();
}
}
void showPage()
{
webPage = "<h2>**Merry Chistmas**</h2>";
webPage += "<p><a href=\"socketAmb\"><button style=\"background:#FFC200;font-size:200%;width:33%;padding:3%;color:" + buttonColor [ColorState[0]] + "\">amber </button></a>";
webPage += " <a href=\"socketRes\"><button style=\"background:#7F7F7F;font-size:200%;width:33%;padding:3%;color:" + buttonColor [buttonReset] + "\">reset </button></a></p>";
server.send(200, "text/html", webPage);
yield ();
}
void setup(void){
// neopixel
pixels.begin();
pixels.show();
setColor(4,4,4); // wait for IP
// preparing GPIOs
delay(1000);
Serial.begin(115200);
WiFi.config(ip, gateway, subnet);
WiFi.begin(ssid, password);
Serial.println("");
// Wait for connection
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.print("Connected to ");
Serial.println(ssid);
Serial.print("IP address: ");
Serial.println(WiFi.localIP());
// timer
os_timer_setfn (&osTimer, timerCallback, NULL);
os_timer_arm (&osTimer, waitTimes[waitTime], true);
server.on ("/", [](){showPage(); });
server.on ("/socketAmb", [](){ColorState [0] = !ColorState [0]; showPage(); });
server.on ("/socketYel", [](){ColorState [11] = !ColorState [11]; showPage(); });
server.on ("/socketBri", [](){brightValue += 1;
buttonDarker = 1;
if (brightValue>=16){brightValue=16;
buttonBrighter=0;}
showPage(); });
server.on ("/socketFas", [](){waitTime -= 1;
buttonSlower = 1;
if (waitTime<=0){waitTime=0;
buttonFaster=0;}
os_timer_arm (&osTimer, waitTimes[waitTime], true);
showPage(); });
server.on ("/socketSpa", [](){buttonSparkle = !buttonSparkle;
showPage(); });
server.on ("/socketDar", [](){brightValue -= 1;
buttonBrighter = 1;
if (brightValue<=1){brightValue=1;
buttonDarker = 0;}
showPage(); });
server.on ("/socketSlo", [](){waitTime += 1;
buttonFaster=1;
if (waitTime>=15){waitTime=15;
buttonSlower=0;}
os_timer_arm (&osTimer, waitTimes[waitTime], true);
showPage(); });
server.on ("/socketRes", [](){brightValue = 4;
waitTime = 5;
os_timer_arm(&osTimer, waitTimes[waitTime], true);
buttonSparkle = 1;
buttonBrighter = 1;
buttonFaster = 1;
buttonDarker = 1;
buttonSlower = 1;
showPage (); });
server.begin();
Serial.println("HTTP server started");
}
void loop(void)
{
server.handleClient();
}
I have tried referencing a few different forum posts both in arduino.cc and github, all recommending similar approaches but the serial monitor still shows DHCP obtained IP.
I added this section into the code for setting the IP and tried placing the Wifi.config in this block:
IPAddress ip(192, 168, 1, 140);
IPAddress gateway(192, 168, 1, 1);
IPAddress subnet(255, 255, 255, 0);
WiFi.config(ip, gateway, subnet);
and got the error:
xmas_ornament_wifi:23: error: 'WiFi' does not name a type
WiFi.config(ip, gateway, subnet);
^
exit status 1
'WiFi' does not name a type
Placting the code WiFi.config(ip, gateway, subnet); just before the WiFi.begin part doesn't error out, but also doesn't set it statically. I'm up to any and all recommendations
Other possibly useful info: I'm running arduino 1.8.2. My board manager for ESP8266 is version 2.3.0
Thank you for any and all assistance you can offer 
Nubstar
