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接上电池,用一个按钮把rst和gnd接上,按一下按钮就会自动开机发送请求,然后进入深度睡眠,可用于低功耗的物联网开关触发器(如需使用自动唤醒,还要将gpio16接到rst)
0 X' @# ]2 l# a+ _- #include <ESP8266HTTPClient.h>
1 l7 u4 s# D- K7 R' ?; o B - #include <ESP8266WiFi.h>- a2 w! {. h# T% E* r* Y+ i% V
- #include <ESP8266WiFiMulti.h>2 Z9 L# K( s& y [9 B
- #include <ESP8266WebServer.h>( \& n2 ~% I4 t9 ]7 E* d, p& p
- #include <arduino.h>
; b! _: O: c- X' q( C/ P& w - ESP8266WiFiMulti WiFiMulti;% @+ z/ M- ~! P& [
- ESP8266WebServer server(80);% M! i1 f' `" ~; r' }6 D( e1 f
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
& V. g: P( Q ^9 ?! X - ADC_MODE(ADC_VCC);
& b& y8 Z4 U+ E% P! ] - void setup() {; j% C: [& F2 ]2 _+ G
- Serial.begin(115200);
/ v6 x' E. v2 v' @+ N/ O& u ~. R - Serial.print("\r\n\n");
0 r, k) B$ ^5 a5 F, Z. E5 ` - pinMode(2,OUTPUT);
, g, C) U9 W" t - // WIFI
+ y( W/ ?% p7 {* A - WiFi.mode(WIFI_STA);
1 [2 H8 Z0 l: y7 U - WiFi.hostname("Sparkle");/ L- Q( z9 Y$ a+ c4 J6 t. b% C. Q
- WiFiMulti.addAP("wifi ssid", "wifi password");/ X$ v: y- A8 h
- int tryNum = 15;( C' }0 T- D9 V7 l! o8 f
- Serial.print("Connect WiFi");8 @% Y' d) Y- y" Q J! H/ v- ~/ J9 j
- while (WiFiMulti.run() != WL_CONNECTED) {
3 ]- h! k z" Q0 o3 J - digitalWrite(2,0);$ o. M7 o$ Z: w0 Y3 a
- delay(200);
Q2 V5 [( Z' M - digitalWrite(2,1);) @1 [4 O& r; N$ I
- delay(300);
( T' J ^3 u5 l - Serial.print(".");0 E6 n6 G% ~$ I4 S: G
- tryNum--;! D/ Y/ l0 X2 c8 I
- if (tryNum == 0) {
; X) e0 g- W, }6 ~ - // 1min
& ^9 `( d9 I/ n) P( t9 ~) ? C3 h - // ESP.deepSleep(60e6);
9 l2 Q/ m/ O, C# V7 ` - ESP.deepSleep(0);
$ I5 Q' Z( a# ~. H7 e/ [2 C - }' g! w" B) V: Z
- }4 t; s W$ m, f v/ Z3 G9 @4 X* @
- Serial.print("\r\n");
V, j# r' X8 O4 S - digitalWrite(2,1);
- j0 x& f7 ?3 Q" H' Q, q. P - Serial.print("IP address : ");
1 a" \' C/ B5 _ - Serial.println(WiFi.localIP());" q" [9 l% b8 j0 C* x3 l
- server.on("/", HTTP_GET, [](){
3 u2 u" Q x6 s - server.sendHeader("Connection", "close");
+ K7 S* w, e3 d - server.send(200, "text/html", serverIndex);9 X) E9 h: L8 {
- });* F6 Z$ [- V. K5 W
- server.on("/update", HTTP_POST, [](){8 N& ^. w7 A2 C/ E ~
- server.sendHeader("Connection", "close");
7 `6 ]2 ]2 y4 \) r& w- n7 e - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");) q* t# a1 k. {6 H3 H) e3 D; e
- ESP.restart();" ]$ d+ k; z' F9 E0 ~" Z" J/ P! S9 i
- },[](){
9 A; m' n% z" S, @/ j; u0 y - HTTPUpload& upload = server.upload();) W" U& X# X* l! s9 o3 w7 r; T" }
- if(upload.status == UPLOAD_FILE_START){
* v6 j) O7 }( B* C - Serial.setDebugOutput(true);
2 Z( L, Z! l! \2 J/ @ - Serial.printf("Update: %s\n", upload.filename.c_str());. \" o a; G) D$ H9 g
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
! e# p5 s" ?7 E - if(!Update.begin(maxSketchSpace)){. z0 e6 x" f6 E3 i0 m
- Update.printError(Serial);, X+ M4 }8 x, P
- }! g e+ y4 }3 H! }
- } else if(upload.status == UPLOAD_FILE_WRITE){* H x/ T- c& W" o1 W9 ^' i
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){6 v2 h" T* F! |0 j$ T8 O P
- Update.printError(Serial);
: g% W) ^4 G! H - }
. R" H; F- e6 z( C, z7 q - } else if(upload.status == UPLOAD_FILE_END){
" G+ Q9 v6 f( Z! t& ^: W8 k& { - if(Update.end(true)){7 E/ \0 ~0 ~8 k8 ^% t \
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);, C% |' s5 V( d' u
- } else {
. Y E4 I; s8 r2 @ - Update.printError(Serial);
( {" U0 ?. B, \+ @( _, D0 Q - }
; ~# Q+ P* l m+ c. D4 | - Serial.setDebugOutput(false);( m4 a2 W5 |1 B, U5 |9 {0 a X4 Q
- }
; g/ X% T" P2 K+ ~, p1 R/ Z7 n - yield();$ C8 n( H# ]4 ]9 A9 }
- });
- k4 Y% w$ W9 G/ {; k" M" @" i -
3 h+ J( @7 I8 z) |1 I - digitalWrite(2,0);
* l( | @+ h7 { - mainAction();
$ j2 W( u8 o3 {/ s) t; t - if (digitalRead(0)){2 }; Q8 X6 S c4 s4 {
- ESP.deepSleep(0);8 x% F7 D% J( k7 u
- } else {. Q: M! I+ W& Y0 T1 s3 R3 U
- server.begin();2 \0 v$ P B' P( X* J. ^
- }
# U8 a& o* m" o/ U% w* {! q& u; ^! j - }6 K$ d) R$ Z+ H0 `! Z
- void loop() {/ q) C `) P; O3 U
- server.handleClient();
5 k! ?# h/ W9 p% L; O% c! t/ j - delay(1);
8 E! a' ^" g- |4 T - }
7 T# x- i) ^) ?/ F2 S/ t* Q - String doGet(String url){( f0 t$ ^. V2 s, q3 A. c
- if ((WiFiMulti.run() == WL_CONNECTED)) {
3 X" `9 I- L( V7 Z# V - HTTPClient http;
7 p/ F9 O. \# e - Serial.println("[HTTP] begin...");
3 S" e" e' W& f0 J$ t - if (url.startsWith("https")) {1 g$ n( M! u( S( F! i! k I
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");8 U1 I7 _) y7 E' v- |
- } else {+ t0 W; K: A# z0 J9 [" E
- http.begin(url);# U0 `% k, v, v
- }8 F3 X: ?7 _) \( w! z9 T' b
- Serial.println("[HTTP] GET...");
4 {4 N" M. p4 W0 W& o: g; Y r6 r+ E - int httpCode = http.GET();9 }4 Q+ d5 N0 h
- if (httpCode > 0) {
% C- n4 F9 ^) \( H: w - Serial.printf("[HTTP] code: %d\n", httpCode);2 g( }3 N& S: c. M7 f
- if (httpCode == HTTP_CODE_OK) {
6 r' K* n# D' R+ j - String payload = http.getString();" @8 y5 z& R+ n/ b7 @* I# s
- Serial.println(payload);
) E3 G+ q& c( r) e8 e6 }' r - Serial.print("\r\n");
& T0 L, F* z- k. D% C8 T" D - return payload;
. m5 I5 u* B+ K. q# D! a5 y6 @! E - }
! c- [# k$ U* a - } else {
) e6 ]$ J+ y1 U - Serial.printf("[HTTP] GET... failed, error: %s\n",* w/ \7 n8 Q& m% Z2 }2 x' L
- http.errorToString(httpCode).c_str());
& f- A6 v3 W6 s2 c8 \ - }
# \& |& [" h4 \ - http.end();. ~% Y/ `$ ?3 }$ ?
- return "";; l9 Z/ K M% C v
- }
: @+ O6 I K* U: [" Q. i M4 { - }5 D7 Y6 I5 u. p9 J+ K. @
- void mainAction() {* K1 q4 X1 f( s* z7 t h
- // 发送请求1 S( X5 V! a# o
- doGet("http://google.cn");' M* M. D8 n. s6 E' k. N
- }
9 O$ w f; k y9 d6 ?
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