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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). y. y7 A0 T: |* O( @ n; I3 q
- #include <ESP8266HTTPClient.h>
5 P6 J5 M: [' ~ - #include <ESP8266WiFi.h>
/ u5 k$ O. y1 A - #include <ESP8266WiFiMulti.h>
* j+ c7 B0 m4 {( d& u - #include <ESP8266WebServer.h>9 u) J- o% S- _0 ^8 h
- #include <arduino.h>1 i* ^8 F: }. M5 E3 A u; ]/ ?. ~
- ESP8266WiFiMulti WiFiMulti;0 W6 D& T1 ]) _% u
- ESP8266WebServer server(80);
3 x$ _2 {; a" n2 | - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";" @1 {& @3 j, ^2 h+ e3 k: V
- ADC_MODE(ADC_VCC);+ K$ S" V6 P2 a
- void setup() {$ u' u$ ^9 C- A* h
- Serial.begin(115200);8 h6 `2 B% M: }- }9 Z
- Serial.print("\r\n\n");
3 O y! p, r2 V3 { - pinMode(2,OUTPUT);4 h% B1 X9 V: b+ A
- // WIFI
' S# E2 q! @4 a: p2 q5 z - WiFi.mode(WIFI_STA);
5 a0 F+ c6 s5 } |5 q3 s - WiFi.hostname("Sparkle");
: h8 |6 ]" c+ C" c - WiFiMulti.addAP("wifi ssid", "wifi password");
7 _- v& b% @: x6 f8 m2 w - int tryNum = 15;
" V* m; T: Z. T: G% O - Serial.print("Connect WiFi");& S) d4 |( F2 |; L! s) I z
- while (WiFiMulti.run() != WL_CONNECTED) {4 [) u( b1 c2 y
- digitalWrite(2,0);! }* { a4 H7 h; X/ z
- delay(200);2 h+ q; e9 y4 b' f8 S7 z
- digitalWrite(2,1);
' Y$ Q6 v c, C( X8 ?6 _$ ~8 t - delay(300);6 Z0 M! f! W7 X
- Serial.print(".");
/ j6 c- K O! _ - tryNum--;
. B/ p2 C) V, c8 B; y5 ^) r8 j; S - if (tryNum == 0) {5 H0 p# U* M; r Y* C) c
- // 1min
9 x3 u& Z( l5 Y: ^( U! G# Q - // ESP.deepSleep(60e6);6 i8 M2 c% ?4 j- K1 V) f6 C4 }
- ESP.deepSleep(0);4 L. v# w9 D7 G* h
- } i3 u+ D) @) V5 R3 F# Q
- }
- P; N- z j# S" K. g - Serial.print("\r\n");
3 q& S$ P6 N3 T( |/ E) a6 R - digitalWrite(2,1);
, b: {6 R+ M: L - Serial.print("IP address : ");
4 t/ T, h; \3 v8 g0 b - Serial.println(WiFi.localIP());
" @, J% Q+ k o5 }; \5 A L - server.on("/", HTTP_GET, [](){. H$ b" B" g% d& }5 q
- server.sendHeader("Connection", "close");
% Q6 H8 l3 K+ `7 |" ], `1 W1 H' P( o - server.send(200, "text/html", serverIndex);
W5 s3 C ] g3 X - });
R. O/ x- y. e9 v; I. a0 M c5 ^# @ - server.on("/update", HTTP_POST, [](){
3 H9 H- k* m: J6 D; [* X" |( n) j - server.sendHeader("Connection", "close");
( g! E9 J/ } h; _5 n1 @ K - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
- H% n' S$ q. e7 h2 S0 Y& c1 q - ESP.restart();
! z: y$ x+ ^4 V& ~ - },[](){
, T0 h, E, R [2 e0 S" A - HTTPUpload& upload = server.upload();
4 R' r& V0 k2 G7 v9 ] - if(upload.status == UPLOAD_FILE_START){9 X8 K% t3 l% S
- Serial.setDebugOutput(true);
" c( r/ I. r5 Q1 x/ ?( v - Serial.printf("Update: %s\n", upload.filename.c_str());
+ J2 E. Y" O0 u/ ]3 l! W% i# I( E - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
- K3 G1 E0 p% z( [ - if(!Update.begin(maxSketchSpace)){1 z9 \+ ?8 E! C* U
- Update.printError(Serial);
2 n7 A" e+ ?, T: [" B3 P - }
' b' N D. [7 ~, h6 j# k - } else if(upload.status == UPLOAD_FILE_WRITE){' E3 S7 R! C( z
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
: p0 ^" z+ W5 g3 v6 { - Update.printError(Serial);
; A4 f' S/ y- j$ o+ D* r - }% [. N8 d4 y) ~0 j$ y& R, Z4 {' S
- } else if(upload.status == UPLOAD_FILE_END){
8 i+ G$ T; y. S" x0 w( y9 A6 \ - if(Update.end(true)){6 M4 [, y/ q8 n
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
' y* ~ V" a( N) `3 q - } else {! G* `/ p+ ^6 s
- Update.printError(Serial);6 }8 a. M" g; |% [1 D
- }8 ~+ _8 n+ A S- [: E9 K
- Serial.setDebugOutput(false);
* T, D7 J* l+ g+ B9 t2 k! C* z, h - }2 a- T( D9 P$ s+ V% z# ]
- yield();
7 e) z! x" |/ w% \ - });" O5 a, Y2 }9 ?3 J. C6 h- Z
- 7 h8 ` A: J, t
- digitalWrite(2,0);
' A# k# R7 M0 w" \0 O) _9 f7 \ - mainAction();
9 O" `7 h' s' v - if (digitalRead(0)){
: q6 a7 A* k. @0 u* ]/ d- s2 H4 n - ESP.deepSleep(0);
) H) e }( M) E/ _/ b+ R, Z - } else {
6 b. [6 ~# U9 V1 Z7 ?, T' ^ - server.begin();
2 w; t# C9 X+ y2 G# ]3 J - }
+ Y5 q! S" d- Y1 L3 N2 `2 G% M - }
& \2 n4 ^2 M" k" j - void loop() {
9 V- F# p% Y m6 X# [ - server.handleClient();
3 N; X9 d8 o+ Z! y) n - delay(1);) D+ F' O& b6 ]$ t0 R
- }; d- M3 D6 l; t
- String doGet(String url){$ l4 ^7 }! u \; @" E
- if ((WiFiMulti.run() == WL_CONNECTED)) {
0 C! ]" Z& P! n8 g4 x, ~( W - HTTPClient http;7 E' j! B9 U9 ?6 V
- Serial.println("[HTTP] begin...");2 K$ Q5 n( l' k% ~
- if (url.startsWith("https")) {, {" _. ], M. D: e
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");6 `* h0 a5 G, d! N! A; T
- } else {5 o. X! `- U' d" R( P
- http.begin(url);+ {( E8 o, F l* j! ~; v
- }3 K1 ^2 g( A) q6 Y
- Serial.println("[HTTP] GET...");! B. O8 m" N+ ?9 q
- int httpCode = http.GET();
* c* \, y+ Q7 _) ^0 w: t2 I% `9 y - if (httpCode > 0) {
/ `+ k' I4 W2 D7 o - Serial.printf("[HTTP] code: %d\n", httpCode);3 L m0 X( @4 C- z
- if (httpCode == HTTP_CODE_OK) {
' s; t( r1 s+ l$ a5 i- A - String payload = http.getString();
/ w+ w. p, e6 h# T+ Y) z - Serial.println(payload);
+ A0 |% \3 h( ^$ D/ k: s( W8 o; W - Serial.print("\r\n");
1 Z- ]' X* {3 t, e1 W! }1 I# h - return payload;
, Y$ O! r7 w7 L - }; t. }4 l8 f- k; i2 F: l1 J; o
- } else {* C G# E; Z" w7 o% e$ j( @
- Serial.printf("[HTTP] GET... failed, error: %s\n",5 Z; K; r( f7 f! T! n+ x. S! [' E
- http.errorToString(httpCode).c_str());
0 ?9 d4 U, C3 W9 X' H) g1 ^ - }& K; X" B. G$ {4 T" Y
- http.end();
' X) M0 p5 L9 ? - return "";1 Z2 L X8 R- _! ^% a
- }
7 T0 }+ m9 ?0 b9 K" k - }
+ H4 r( S/ M+ a; U/ H - void mainAction() {
* v( m6 y1 [# ^; F - // 发送请求
* ?9 @1 v }/ D/ z$ |- d - doGet("http://google.cn");5 d0 M" {, }3 U6 ?) ^, K. U& c. f
- }9 `+ d1 O1 A4 ]5 d+ i
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