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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)' a! i5 n& F5 C# k
- #include <ESP8266HTTPClient.h>6 Y* D# v/ R Z1 [6 ?/ t- ~
- #include <ESP8266WiFi.h>8 v0 `. W0 f0 j$ S( l/ j+ m n4 R" e
- #include <ESP8266WiFiMulti.h>
6 V% t6 Z5 E2 E8 ?' f - #include <ESP8266WebServer.h>$ m) W6 |! p( v& g2 E* w8 l
- #include <arduino.h>
# k4 k5 ^& A4 I/ J1 [" p& K - ESP8266WiFiMulti WiFiMulti;
& K- E$ l/ y' a$ B @ - ESP8266WebServer server(80);% d. q+ [; ~5 i. y, W
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
/ ]/ O7 f B- Z8 | - ADC_MODE(ADC_VCC);
6 L) Q! q( i2 h; P& U" v# Q - void setup() {. w6 t( ~1 x s1 L. B
- Serial.begin(115200);' e$ {$ l8 E6 P
- Serial.print("\r\n\n");2 Q* }* m5 j2 z, X
- pinMode(2,OUTPUT);: {8 V! Q: u1 V2 P" v; C: _
- // WIFI$ f; a; z* T+ C4 h3 R) b: J+ h
- WiFi.mode(WIFI_STA);; ] @$ Q. K I6 e
- WiFi.hostname("Sparkle");
4 @6 R, ~. A: L) F) t' X8 a - WiFiMulti.addAP("wifi ssid", "wifi password"); `( w( q: L3 o6 q. S2 `+ G n
- int tryNum = 15;
# u! U" k2 K2 `( K, E) t6 u* v - Serial.print("Connect WiFi");
3 `% B. _; K' P3 U: G0 l - while (WiFiMulti.run() != WL_CONNECTED) {3 Y' R- ~/ b" h
- digitalWrite(2,0);
/ w1 k) e5 z% L+ i3 p& e3 Z- {% Y. G- T - delay(200);! _+ d/ X8 `) E% P
- digitalWrite(2,1);
, u+ l( X" j: @# D, l - delay(300);" d+ a- G& @0 K" l5 k
- Serial.print(".");, E8 `2 h" h# c/ p
- tryNum--;
9 b. R6 D0 @* I - if (tryNum == 0) {5 U; ^. t4 l. l6 _* w `! W
- // 1min3 N* x- v0 g" q" |( {$ e0 [
- // ESP.deepSleep(60e6);
' y/ [/ a- `2 b+ Y! K+ A - ESP.deepSleep(0);
* D/ d: ~: q: |$ h+ w3 O - }
) Y" \# s3 a9 O - }
2 B, e% u& m B1 v ^( `4 q F0 m( o - Serial.print("\r\n");6 Z* [, c% n; X+ Y
- digitalWrite(2,1);, G6 C/ W9 A3 I& N1 e
- Serial.print("IP address : ");
2 M! \% d! ?' i6 X! P% J - Serial.println(WiFi.localIP());
( W7 z& S. D- Q9 s8 D4 u - server.on("/", HTTP_GET, [](){
) w( D' L4 @; _5 h- M) J% | - server.sendHeader("Connection", "close");
& ~6 r0 G! ^! r! _ - server.send(200, "text/html", serverIndex);
7 {& W- |" Z. J5 P R1 f" \7 r - });
0 e% @- } t; z5 y; p - server.on("/update", HTTP_POST, [](){! M5 N9 }7 Y/ M& P8 f8 \- Y
- server.sendHeader("Connection", "close");' P, @ q9 P( r/ e
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
9 B5 L Z; g' n5 m8 V+ G - ESP.restart(); i- W- x) B7 k$ T
- },[](){+ l9 r( ?% i* n) R
- HTTPUpload& upload = server.upload(); t: j' v- { L2 I2 m
- if(upload.status == UPLOAD_FILE_START){" n) p- h8 H( w8 U3 e5 y
- Serial.setDebugOutput(true);0 H* b9 X" ?* g w; c. v
- Serial.printf("Update: %s\n", upload.filename.c_str());" C& c7 }+ a- [- w; ?3 ~
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
# Y! Q1 ~* h% F/ p* a5 h2 \ - if(!Update.begin(maxSketchSpace)){
) [. h; ] L, Z& c5 } - Update.printError(Serial);6 G+ G7 ~1 _0 r* a
- }
4 }9 b! f1 E0 F5 i9 {( i* _( V% p+ x - } else if(upload.status == UPLOAD_FILE_WRITE){
9 H: J; W4 L% L - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
6 \8 E6 x7 c; h9 `; f; E! ? - Update.printError(Serial); D) u) U9 k3 E5 M% I
- }4 H" I- F; f: |5 B0 T% n y) w
- } else if(upload.status == UPLOAD_FILE_END){
8 f$ `- k8 L9 b) e5 c - if(Update.end(true)){
2 O0 ~5 \7 i0 P. Q- L - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
. I& l; ]* o. w4 b$ Y - } else {- ]4 W+ Y- C1 _2 V* |
- Update.printError(Serial);* q( }- x" _6 d2 E. s- ^3 G6 D4 r
- }
' z7 x3 [( Q6 e4 \) W$ J6 I8 C - Serial.setDebugOutput(false);9 ]$ V6 z% ]6 ]4 r$ {& e
- }. g" K0 N3 i% Y# Q f) L
- yield();4 S7 C) v* V% s% T
- });
6 ~+ ^" I- u' b) H2 j8 u) x -
- l( B" |% C& [' X$ l# O/ @! h - digitalWrite(2,0);4 a/ D8 t- g) O1 S
- mainAction();% v; ?3 i" X' c/ i' Q
- if (digitalRead(0)){% W% V/ o# E4 _ a& [2 j
- ESP.deepSleep(0);: K4 _8 x, H3 O* D
- } else {
% P( p# x+ {( B7 ~/ Y - server.begin();
# }: Z* y& m6 _/ Q+ a3 n - }: U) D' E/ A8 E
- }
. `+ K6 q& I$ f6 x4 L4 X' H - void loop() {# W/ d! ^' v0 x
- server.handleClient();
, ^0 k; |# f% \: C0 \( p" Y4 M - delay(1);
5 f9 D1 g. c. n - }
( m; U! o w0 v" v# ]4 h! {* P - String doGet(String url){
4 T+ B" k6 K; M- j" T - if ((WiFiMulti.run() == WL_CONNECTED)) {
; x# O+ {1 }$ {& K/ q' P3 o- | c - HTTPClient http;
3 I1 B7 R; G" A: }0 h9 b9 B - Serial.println("[HTTP] begin..."); ?% U R) {" ?$ c F3 ]- O
- if (url.startsWith("https")) {
* q/ m% G2 C4 a - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");* L3 p& V6 o( y% h0 j& u s
- } else {8 N. d& H, }! I& C! S
- http.begin(url);
: _7 P; b+ u. {" _, h - }# I( w' M$ B( U* t. f5 j# ^5 l- k
- Serial.println("[HTTP] GET...");
3 i4 R7 W7 m! o" t! z3 s2 I1 p; s - int httpCode = http.GET();
1 q/ Q- |( W( p - if (httpCode > 0) {2 c" ^/ ? @2 d7 R# h
- Serial.printf("[HTTP] code: %d\n", httpCode);
! R; d2 x, K* {+ @9 m7 e3 u - if (httpCode == HTTP_CODE_OK) {
4 E/ i! c5 r: O8 t, @ - String payload = http.getString();* V0 @' C1 f5 S* H
- Serial.println(payload);
. F$ J* X$ H/ i: T7 V - Serial.print("\r\n");4 s: p; r! Y( K& O0 x
- return payload;0 ~6 T, ~, |4 w* E& G: d
- }" V9 U1 v) p/ l- j- G7 l
- } else {2 \' o, {' C1 O) L& N" W* O6 p
- Serial.printf("[HTTP] GET... failed, error: %s\n",
9 t( P7 H9 K/ x1 S( J - http.errorToString(httpCode).c_str());, }" c& N! G' M& c9 Y1 q+ {- l
- }
9 f' v- w x1 \* } - http.end();
7 \+ h. n8 n @4 `, q, t - return "";4 n N. t3 ^0 j9 W4 ?6 Q! O
- }0 a. M: D7 B g
- }
, R, o- G1 @* x9 m6 m - void mainAction() {) ?5 M% h# D; z$ v0 O ~( n$ v
- // 发送请求
0 H& x, \$ z9 {7 [: D - doGet("http://google.cn");
! }3 a: D& g% p# k - }
" r7 c0 v) H% w, @. a' E8 e
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