(128x64dot) Wi-Fi (CPU ESP-WROOM-02) Susumu Shikata V2: V3: SPIFF SSID / Password / IP " "

Size: px

Start display at page:

Download "(128x64dot) Wi-Fi (CPU ESP-WROOM-02) Susumu Shikata V2: V3: SPIFF SSID / Password / IP " ""

Brandon Bruce
5 years ago
Views:

1 /* (128x64dot) Wi-Fi (CPU ESP-WROOM-02) Susumu Shikata V2: GPIO0 ( ) V3: SPIFF SSID / Password / IP ) 4 "1" " " ESP-WROOM-02 #include <ESP8266WiFi.h> /* This function returns following codes to describe what is going on with Wi-Fi connection: 0 : WL_IDLE_STATUS when Wi-Fi is in process of changing between statuses 1 : WL_NO_SSID_AVAILin case configured SSID cannot be reached 3 : WL_CONNECTED after successful connection is established 4 : WL_CONNECT_FAILED if password is incorrect 6 : WL_DISCONNECTED if module is not configured in station mode #include <WiFiClient.h> #include <DNSServer.h> #include <ESP8266WebServer.h> #include <FS.h> #include <time.h> #define JST 3600*9 time_t t; struct tm *tm; static const char *wd[7] = {"Sun", "Mon", "Tue", "Wed", "Thr", "Fri", "Sat"; #define GPIO0 0 #define GPIO2 2 Wi-Fi const char* settings = "/wifi_settings.txt"; const char* modef = "/dsp_settings.txt";

2 byte dspf = 0; const String pass = "password"; I2C #include "SparkFun_Si7021_Breakout_Library.h" SI7021 #include <SPI.h> #include <Wire.h> #include <Adafruit_GFX.h> OLED #include <Fonts/FreeSerifBold24pt7b.h> #include <Fonts/FreeMonoBoldOblique18pt7b.h> #include <Fonts/FreeSerifBold18pt7b.h> #include <ESP_Adafruit_SSD1306.h> OLED #define OLED_RESET 4 SI7021 float humidity = 0; float tempf = 0; ( ) float tempc = 0; ( ) OLED Adafruit_SSD1306 display(oled_reset); Create Instance of HTU21D or SI7021 temp and humidity sensor and MPL3115A2 barrometric sensor Weather sensor; ESP8266WebServer server(80); IPAddress subnet(255, 255, 255, 0); /* Wi-Fi void handlerootget() { String html = ""; html += "<h1>wifi Settings</h1>"; html += "<form method='post'>"; html += " <input type='text' name='ssid' placeholder='ssid'><br>"; html += " <input type='text' name='pass' placeholder='pass'><br>"; html += " <input type='text' name='adr1' placeholder='ip#1'><br>"; html += " <input type='text' name='adr2' placeholder='ip#2'><br>"; html += " <input type='text' name='adr3' placeholder='ip#3'><br>"; html += " <input type='text' name='adr4' placeholder='ip#4'><br>"; html += " <input type='submit'><br>"; html += "</form>"; server.send(200, "text/html", html);

3 /* Wi-Fi SPIFFS void handlerootpost() { String ssid = server.arg("ssid"); String pass = server.arg("pass"); /*String adr1 = server.arg("adr1"); String adr2 = server.arg("adr2"); String adr3 = server.arg("adr3"); String adr4 = server.arg("adr4"); int adr1 = (server.arg("adr1")).toint(); int adr2 = (server.arg("adr2")).toint(); int adr3 = (server.arg("adr3")).toint(); int adr4 = (server.arg("adr4")).toint(); File f = SPIFFS.open(settings, "w"); f.println(ssid); f.println(pass); f.write(adr1); f.write(adr2); f.write(adr3); f.write(adr4); f.close(); String html = ""; html += "<h1>wifi Settings</h1>"; html += ssid + "<br>"; html += pass + "<br>"; html += adr1 + '.' + adr2 + '.' + adr3 + '.' + adr4 + "<br>"; html += String(adr1) + '.' + String(adr2) + '.' + String(adr3) + '.' + String(adr4) + "<br>"; server.send(200, "text/html", html); void handleroot() { char tmp[400]; t = time(null); tm = localtime(&t); snprintf ( tmp, 400, "<html>\ <head>\ <meta http-equiv='refresh' content='5'/>\ <meta charset='utf-8'>\

4 <title>get HTU21 status</title>\ <style>\ body { background-color: #cccccc; font-family: Arial, Helvetica, Sans-Serif; Color: #000088; \ </style>\ </head>\ <body>\ <h2>weather condition now</h2>\ <h1> %02d.%02d %02d.%02d%</h1>\ <h1> %4d %02d %02d (%s) %02d:%02d</h1>\ </body>\ </html>", int(tempc), int( (tempc - floor( tempc)) * 100 ), int(humidity ), int( (humidity - floor( humidity )) * 100), tm->tm_year , tm->tm_mon + 1, tm->tm_mday, wd[tm->tm_wday], tm->tm_hour, tm->tm_min ); server.send ( 200, "text/html", tmp ); void handlenotfound() { String message = "File Not found\n\n"; message += "URI: "; message += server.uri(); message += "\nmethod: "; message += (server.method() == HTTP_GET)? "GET" : "POST"; message += "\narguments: "; message += server.args(); message += "\n"; for (uint8_t i = 0; i < server.args(); i++) { message += " NAME:" + server.argname(i) + server.arg(i) + "\n"; server.send(404, "text/plain", message); IP int x, y : (x,y ) void dsp_wifi( int x, int y ) { display.setcursor( x, y ); if ( WiFi.status() == WL_CONNECTED ) display.println ( WiFi.localIP() ); DHCP IP else display.println ( "WiFi not found." );

5 int x, y, f : (x,y ), (0: 1:18p) void dsp_time( int x, int y, int f ) { t = time(null); tm = localtime(&t); display.setcursor( 0, 57 ); if ( WiFi.status()!= WL_CONNECTED ) display.println ( "WiFi not found." ); else { display.setcursor( x, y ); if ( f == 0 ) { display.printf("%02d/%02d(%s) %02d:%02d", tm->tm_mon + 1, tm->tm_mday, wd[tm->tm_wday], tm->tm_hour, tm->tm_min); else { display.setfont(&freemonoboldoblique18pt7b); display.printf("%02d:%02d", tm->tm_hour, tm->tm_min); /** ( ) void setup_client() { int i, status; File f = SPIFFS.open(settings, "r"); String ssid = f.readstringuntil('\n'); String pass = f.readstringuntil('\n'); int adr1 = f.read(); int adr2 = f.read(); int adr3 = f.read(); int adr4 = f.read(); f.close(); ssid.trim(); pass.trim();

6 IPAddress ip( adr1, adr2, adr3, adr4 ); IPAddress gateway( adr1, adr2, adr3, 1 ); IP Serial.println(); Serial.println("SSID: " + ssid); Serial.println("PASS: " + pass); Serial.println("IP: " + String(adr1) + '.' + String(adr2) + '.' + String(adr3) + '.' + String(adr4) ); OLED display.cleardisplay(); display.setcursor(0, 20); display.print( "WiFi connecting." ); display.setcursor(0, 30); display.print( " to: " + ssid ); display.display(); attempt to connect to Wifi network: WiFi.disconnect(); WiFi.mode(WIFI_STA); WiFi.begin(ssid.c_str(), pass.c_str()); WiFi.config( ip, gateway, subnet ); IP Wait for connection for ( i = 0; i <= 50; i++ ) { if ( WiFi.status() == WL_CONNECTED ) break; delay ( 500 ); Serial.print('.'); Serial.println(""); Wi-Fi configtime( JST, 0, "ntp.nict.jp", "ntp.jst.mfeed.ad.jp"); if ( i < 50 ) { server.on ( "/", handleroot ); server.on ( "/inline", []() { server.send ( 200, "text/plain", "this works as well" ); ); server.onnotfound ( handlenotfound ); server.begin(); Serial.println("WiFi connected"); OLED

7 display.cleardisplay(); display.setcursor(0, 17); display.print( ssid ); display.setcursor(0, 27); display.print( pass ); display.setcursor(0, 37); display.print( "WiFi connected" ); display.setcursor(0, 47); display.print( "IP address:" ); dsp_wifi( 20, 57 ); display.display(); delay( 1000 ); else { Serial.println("WiFi:Missing connection."); /* ( ) void setup_server() { byte mac_adr[6]; WiFi.macAddress(mac_adr); String ssid = "ESP+"; SSID "ESP+" Mac (6 ) for (int i = 0; i < 6; i++) { ssid += String(mac_adr[i], HEX); String ssid = "ESP_WiFi_Setup"; Serial.println(); Serial.println("SSID: " + ssid); Serial.println("PASS: " + pass); /* OLED display.cleardisplay(); display.setcursor(0, 10); display.print( "ID:ESP_WiFi_Setup" ); display.setcursor(0, 24); display.print( "PAS:password" ); /* You can remove the password parameter if you want the AP to be open. WiFi.softAP(ssid.c_str(), pass.c_str()); server.on("/", HTTP_GET, handlerootget); server.on("/", HTTP_POST, handlerootpost); server.begin(); Serial.println("HTTP server started.");

8 display.setcursor(0, 44); display.print( "HTTP server started." ); [CASE0] void dsp0() { display.setfont(&freeserifbold18pt7b); display.setfont(&freemonoboldoblique18pt7b); display.setcursor(20, 23); display.print( tempc ); display.print(" C"); display.setfont(&freeserifbold18pt7b); display.setcursor(20, 52); display.print( humidity ); display.print(" %"); dsp_time( 20, 57, 0 ); [CASE1] ( ) ( ) void dsp1() { display.setfont(&freeserifbold18pt7b); display.setfont(&freemonoboldoblique18pt7b); display.setcursor(30, 23); display.print( tempc, 0 ); display.print(" C"); display.setfont(&freeserifbold18pt7b);

9 display.setcursor(30, 52); display.print( humidity, 0 ); display.print(" %"); dsp_time( 20, 57, 0 ); [CASE2] void dsp2() { display.setfont(&freeserifbold24pt7b); display.setfont(&freeserifbold18pt7b); display.setcursor(20, 36); display.print( tempc, 0 ); display.print(" C"); dsp_time( 16, 56, 1 ); [CASE3] void dsp3() { display.setfont(&freeserifbold24pt7b); display.setfont(&freeserifbold18pt7b); display.setcursor(20, 36); display.print( humidity, 0 ); display.print(" %"); dsp_time( 16, 56, 1 ); [CASE4]

10 void dsp4() { display.setfont(&freeserifbold24pt7b); display.setfont(&freeserifbold18pt7b); display.setcursor(16, 23); display.print( tempc, 0 ); display.print( " C " ); display.setfont(&freeserifbold18pt7b); display.print( humidity, 0 ); display.print(" %"); dsp_time( 16, 53, 1 ); void getweather() { Measure Relative Humidity from the HTU21D or Si7021 humidity = sensor.getrh(); Measure Temperature from the HTU21D or Si7021 tempf = sensor.gettempf(); tempc = sensor.gettemp(); Temperature is measured every time RH is requested. It is faster, therefore, to read it from previous RH measurement with gettemp() instead with readtemp() void setup() { int i; pinmode( GPIO0, INPUT ); Wire.begin( 5, 4 ); (SDA,SCL):ESP8266(IO_5)-OLED(SDA),(IO_4)-OLED(SCL) display.begin(ssd1306_switchcapvcc, 0x78 >> 1); OLED ADDRESS display.cleardisplay(); Clear the buffer. Serial.begin(74880);

11 Serial.println(); 2 MODE 0 : Server 1 : Client delay(2000); Initialize the I2C sensors and ping them sensor.begin(); SPIFFS.begin(); if (digitalread( GPIO0 ) == 0) { setup_server(); else { setup_client(); File f = SPIFFS.open( modef, "r" ); dspf = f.read(); f.close(); void loop() { int i; getweather(); OLED 5 WEB for ( i = 0; i <= 500; i++ ) { server.handleclient(); delay( 10 ); display.cleardisplay(); if ( digitalread( GPIO0 ) == LOW ) { delay( 20 ); dspf++; if ( dspf > 4 ) dspf = 0; File f = SPIFFS.open( modef, "w" ); f.write( dspf ); f.close(); switch ( dspf ) { case 0: dsp0();

12 break; case 1: dsp1(); break; case 2: dsp2(); break; case 3: dsp3(); break; case 4: dsp4(); break; default: dsp0(); break; display.display(); /*Serial.printf( " %4d %02d %02d (%s) %02d:%02d:%2d\n", tm->tm_year+1900,tm->tm_mon + 1, tm->tm_mday,wd[tm->tm_wday],tm->tm_hour, tm->tm_min,tm->tm_sec );

DIY Korner home security system

DIY Korner home security system What is Korner security system? This product is meant for home security. It comes with a korner tag (korner stick) and several korner tags. The one to the right is the korner