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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)8 {7 ?( A& I+ `, \1 O+ ~
- #include <ESP8266HTTPClient.h>
3 _4 b! ~ w" R2 q3 M - #include <ESP8266WiFi.h>! m8 P" f5 q- Q$ d% X
- #include <ESP8266WiFiMulti.h>0 Z+ \# r! R$ S; b. [5 s
- #include <ESP8266WebServer.h>+ X* B# ? |0 m- B: Z& O
- #include <arduino.h>% \6 g% ~" T+ ]2 H
- ESP8266WiFiMulti WiFiMulti;9 K/ M: v/ m' `( ^
- ESP8266WebServer server(80);
( t$ O& s4 R$ F& z# ?( F - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";4 P/ ]% Q" z' L( C
- ADC_MODE(ADC_VCC);
* u% ?& f9 T6 H' n$ g; U - void setup() {
6 x+ J- Z( r' l0 Q - Serial.begin(115200);
' J6 E) ^- s! W$ O - Serial.print("\r\n\n");6 v* J. u$ ~ l5 z& U; p$ r
- pinMode(2,OUTPUT);) E5 C. E$ R' l6 [
- // WIFI4 s$ X+ d5 V5 P9 e9 n
- WiFi.mode(WIFI_STA);) R/ N' H p5 f. i+ ^3 p
- WiFi.hostname("Sparkle");0 J$ i2 J! g$ ]
- WiFiMulti.addAP("wifi ssid", "wifi password");
2 f$ v; y5 I; P( n" J4 E/ T - int tryNum = 15;
7 }% H1 G5 b' N - Serial.print("Connect WiFi");
% v4 x, c3 V- Y - while (WiFiMulti.run() != WL_CONNECTED) {' p# L; n+ m, L( l2 h1 t% d' d- P/ o
- digitalWrite(2,0);
0 K; h( k" E: |- Z6 @ - delay(200); P1 \. l$ ?2 t1 l9 _" B3 M
- digitalWrite(2,1);
/ \- [; e5 j" k - delay(300);
( K. H7 d4 k" k9 e/ Z - Serial.print(".");
$ ^; a- k* a- F; L7 r - tryNum--;9 W- w% @7 A7 K
- if (tryNum == 0) {- U! E. Y; }' E+ t; S
- // 1min% g% G. a2 o/ v+ E! i
- // ESP.deepSleep(60e6);$ Y5 l( w- |: O$ e. ?7 l# o
- ESP.deepSleep(0);1 D) h' `, l* }
- }
. U# M* D9 q6 p* I d3 r4 `3 C - }
3 V: M Y' a+ T' R; Z Z - Serial.print("\r\n");
+ K4 `& G0 X+ O4 G5 \& ^9 C - digitalWrite(2,1);
% J8 f; ^% v; h1 W2 n - Serial.print("IP address : ");5 z; @( b6 d7 z4 ^4 l$ o
- Serial.println(WiFi.localIP());
) x; u1 C$ r2 U, ` - server.on("/", HTTP_GET, [](){1 F, @6 u! [8 J6 X% I0 i
- server.sendHeader("Connection", "close");
. \. K+ T2 \- Z8 n4 X5 [7 W7 p3 `1 ^ - server.send(200, "text/html", serverIndex);" N5 p; r i- `3 l# D+ z
- });3 [- z3 Z$ f3 _9 Z
- server.on("/update", HTTP_POST, [](){# @7 V$ g! t3 c1 J
- server.sendHeader("Connection", "close");
\4 C$ X: W; f - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK"); }, m' ~. d9 b0 L6 ^' f$ n2 W1 G
- ESP.restart();
0 v( e7 b3 D" Z K - },[](){# g* A) }$ I% ]; G0 k
- HTTPUpload& upload = server.upload();
) F! t- o4 z. | - if(upload.status == UPLOAD_FILE_START){; R# c9 g; G% f. E3 b9 ^% Z0 L
- Serial.setDebugOutput(true);
+ l% m0 O" Y2 Z! c - Serial.printf("Update: %s\n", upload.filename.c_str());% \. `! O5 z- D$ U
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
* c0 X- {- q4 [. _# b7 n3 M! ] - if(!Update.begin(maxSketchSpace)){; L0 H! J9 G& b3 G* V2 k8 {
- Update.printError(Serial);
+ J% q# X/ q; T2 o5 q7 F! Q - }( _/ F& k+ g; E Y' G' g
- } else if(upload.status == UPLOAD_FILE_WRITE){. [9 s4 j! k) b) G1 J! e* P
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){! z& o6 H, o% \1 O- }3 \0 c) \' N& l) T
- Update.printError(Serial);
" d$ h/ G: Y1 i; @6 m4 t - }
. A/ [4 y6 f: [' X - } else if(upload.status == UPLOAD_FILE_END){ G9 y9 ?4 V8 j' p
- if(Update.end(true)){
# i# T. P8 I% }! R2 N$ P6 v - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
5 ~* v0 S, y3 ^9 v6 s& e/ I5 u1 H - } else {
. v% j9 [- Y( a; z - Update.printError(Serial);! N' N a( H# i2 d
- }8 `3 Y: N/ t) X# |5 r9 u; @
- Serial.setDebugOutput(false);
1 ]9 _0 Z( I& J* g - }0 W6 |1 i% E; t* X2 _) z8 B# W8 x
- yield();
) h. `9 o' p; ]4 t I - });* O8 n: R# W2 f0 x# R; G
-
; z& T* U, W- q - digitalWrite(2,0);
9 ~, G0 V( V( U3 N - mainAction();4 }) w0 T, _" g [" X2 `1 E
- if (digitalRead(0)){5 n' A$ q& ^- j. j, j; P5 J
- ESP.deepSleep(0);
3 c8 b% G2 @/ C5 ^ - } else {
6 y: h0 n3 W9 Z. p( ?" }+ Q1 B% V! ? - server.begin();
' y4 V% J0 Q) o$ u+ T( h6 U; u+ d! u - }8 t* W; M$ }' G. v$ y
- }3 T- ~' c4 K. O. u
- void loop() {& d5 N( G0 t" [9 a$ {& L/ C0 B
- server.handleClient();
9 V0 N) w5 X$ }& N1 k+ s - delay(1);
; Q3 h9 U: T( Z% F2 o - }
4 f! s% Q+ a2 a" K; c' j2 L - String doGet(String url){: m4 a3 x* N" ^( A' i) E6 z2 A
- if ((WiFiMulti.run() == WL_CONNECTED)) {2 q, Y9 |/ x2 Z6 K
- HTTPClient http;
$ R1 A* U# R+ U/ P! F - Serial.println("[HTTP] begin...");& \. x# w. ]5 p( a
- if (url.startsWith("https")) {/ `" ]) E# e8 Q3 o0 p F
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
! K; d5 C8 g$ i. v( i" }. O - } else {: {9 n, S/ L6 Y; |4 F
- http.begin(url);
% }( N# J* q: H% s( F$ }" D - }
7 l5 I( J7 [! a3 B - Serial.println("[HTTP] GET...");2 {2 d1 \8 I3 @+ c' Q2 g/ k
- int httpCode = http.GET();' r: e9 K/ U# @2 i
- if (httpCode > 0) {( X9 J' H5 V" S1 E) z: Y! E
- Serial.printf("[HTTP] code: %d\n", httpCode); D9 l* e! D, F0 a3 ^
- if (httpCode == HTTP_CODE_OK) {* x' w- u1 m9 Q L+ {/ v1 K
- String payload = http.getString();9 z/ x3 Z+ o$ A1 a" Z$ w1 f# ^
- Serial.println(payload);
3 Z) A3 L. e0 p$ R( [5 U2 U - Serial.print("\r\n");
$ N1 p# _8 [: ~5 | - return payload;% V4 ?4 x& x+ S9 C- [% [
- }
8 `$ f& r. f5 ]. v" W - } else {
2 x1 |" r& {4 a. V% @' I: g5 T - Serial.printf("[HTTP] GET... failed, error: %s\n",
. v: C$ r9 ^8 k( A2 d9 J - http.errorToString(httpCode).c_str());- M- Y9 _/ E; G0 T1 e
- }
, o: Z7 n x& _, P h - http.end();. ?' r, Q" f- j c3 u/ D
- return "";8 ^0 s, S2 o" Z4 B! {0 ^4 ]
- }
+ c1 q0 b" N* N' u6 F) R' ? - }
2 K. w2 B$ b$ q3 s) t d - void mainAction() {6 u/ X& f" U9 l5 i; D& Y. h% C6 I5 f
- // 发送请求9 H$ K6 N4 ?# E, U3 _4 P1 n
- doGet("http://google.cn");5 H. D6 k+ I5 ] |
- }" j2 n( l7 M( T3 E
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