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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 x6 y0 b, B/ y) B, e' {
- #include <ESP8266HTTPClient.h>
) J, {& x3 q4 r" o4 e - #include <ESP8266WiFi.h>
9 L% b7 u8 G- F( M& w! s4 j1 U: V. x - #include <ESP8266WiFiMulti.h>
( o. u, c, E1 d o k - #include <ESP8266WebServer.h># r! @. d6 b- G5 e' p+ |1 J
- #include <arduino.h>
5 J- n( D5 l- W9 q. M - ESP8266WiFiMulti WiFiMulti;
% x! Z% t1 D8 T' j* z - ESP8266WebServer server(80);
2 c6 L: B7 i- D7 X - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";# h; G. `0 S! ^9 j
- ADC_MODE(ADC_VCC);
, d$ L! H5 s8 k- Y$ Z - void setup() {
2 C( G2 J' k% o: G+ x6 C, c - Serial.begin(115200);
8 _2 @- m) p& _ - Serial.print("\r\n\n");
; @ i- q2 F2 N2 P - pinMode(2,OUTPUT);
3 j. g0 @& m% `( e5 s - // WIFI% t+ D: A# j+ [
- WiFi.mode(WIFI_STA);% z" p% X8 Q' I6 N4 C
- WiFi.hostname("Sparkle");* c, L2 n1 n2 y# ^8 W/ C' A+ @
- WiFiMulti.addAP("wifi ssid", "wifi password");" V; D* _' S* G$ w- m4 G% k' Z
- int tryNum = 15;- W. ~9 o( Y, c& }
- Serial.print("Connect WiFi");- w1 B) \$ W( l+ Q- l5 { r
- while (WiFiMulti.run() != WL_CONNECTED) {; B# e+ A) s( l! T/ S: ?, @
- digitalWrite(2,0);
/ D! A) S* v$ |! E - delay(200);8 v5 b( j, q" V4 ], {6 E( _
- digitalWrite(2,1);8 c o3 ]! E: t4 h; j: Y0 V
- delay(300);
2 E9 w5 [# m/ k1 }1 y* X - Serial.print(".");! x. T/ ?9 S+ S( B' S; E+ G$ W
- tryNum--;, h& [9 \ `6 v4 Y4 v' T8 r
- if (tryNum == 0) {
* t) F. M. K7 q5 m - // 1min
: L, Z7 w1 z, [, u" c2 P% ]! d' `3 I - // ESP.deepSleep(60e6);
' ?! N( R! D4 v" o0 D7 t - ESP.deepSleep(0);! C+ S5 U' Y; \/ Q
- }
0 A- k, {+ A9 B2 i7 _ - }
2 W2 v$ V+ M3 U - Serial.print("\r\n");
. }! D: X7 R4 Z0 m; m# b) b) ~2 t - digitalWrite(2,1);
6 }& e+ _7 @! L* ^ - Serial.print("IP address : ");
- Q! b) j! n. T6 j) J - Serial.println(WiFi.localIP());5 ^$ i3 A; B$ H4 `
- server.on("/", HTTP_GET, [](){: H( F6 d- p: z3 A
- server.sendHeader("Connection", "close");- h& y* I3 J1 P* M" w" _2 W7 j
- server.send(200, "text/html", serverIndex);
: w- b2 g- r+ o' t2 I& u6 j - });
$ P( I: G4 a" I z2 L - server.on("/update", HTTP_POST, [](){
+ z* y( K' M+ w- m- ]0 J! H - server.sendHeader("Connection", "close");/ E4 _) J0 Z5 E, t- u. `
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");' t% J5 I; s2 T' P, K$ G; M2 ?6 q6 K
- ESP.restart();) ~6 U3 N. M; T2 m4 N
- },[](){/ L) m. @+ c9 V- `/ L6 c: V( ^
- HTTPUpload& upload = server.upload();2 P8 }# t+ ^1 B0 ~6 I) V
- if(upload.status == UPLOAD_FILE_START){+ d! |, R K5 j5 O) t$ l" S
- Serial.setDebugOutput(true);
, f5 H# d. C$ x% x% P6 p - Serial.printf("Update: %s\n", upload.filename.c_str());" g' ~' Z& J' J8 S3 Y- ]
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
2 t; J0 Y9 _7 | - if(!Update.begin(maxSketchSpace)){
3 j4 Y- D; m$ `6 u `1 Q - Update.printError(Serial);
9 i! A7 N9 O# H' o# o - }
* F2 S; W2 \, c$ s. t0 U* z - } else if(upload.status == UPLOAD_FILE_WRITE){
4 }7 N6 z& ]1 k8 [- u - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){% S I1 A/ O5 U2 M0 _
- Update.printError(Serial);: H B* r0 |$ c5 K4 q6 E
- }
2 f9 J! g4 _% z& y5 a% k, I% W - } else if(upload.status == UPLOAD_FILE_END){
5 W8 Z! ], c* l0 y. S, R" Q) O4 K - if(Update.end(true)){
1 o: a$ b, A' _( O P - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);$ h' w' K W* z" @( A) b
- } else {
; ]* X8 S/ _# X! W. o. Z - Update.printError(Serial);
* K. p8 [2 j, E9 p# e6 x - }' a6 ?% x& D$ O
- Serial.setDebugOutput(false);
2 G) `- u6 i( w# n2 ? - }
6 c/ c5 r8 Q' w- g6 w - yield();, W% x4 I4 ~2 E$ q) t) ^7 u0 e& V
- });
: ^- w, B% [, N! n - " o+ d/ @" y) b* a* }
- digitalWrite(2,0);: L5 s3 x% e. D9 a& C% B
- mainAction();
0 N6 x4 {/ k3 p" l - if (digitalRead(0)){3 U w+ ^& Q; W' ]/ y, I
- ESP.deepSleep(0);
* i5 \3 S8 G$ S- s3 D- U. ] - } else {
1 m0 Q; }! L! }% l$ ]6 c! v - server.begin();
2 `4 ?2 F* A( T$ g - }' e) W% g% a. t( _
- }
" L0 U4 b9 ~; K9 E7 U, h4 o) E - void loop() {: ?$ k- q5 b8 y, u
- server.handleClient();
) ?" Z4 u' y% n7 b" A, b - delay(1);6 O' U. D* x+ G( z; t
- }2 k. i% c, N" D0 F% Y/ A6 d) F
- String doGet(String url){
5 X; f: y# ?) _# e7 I3 ` - if ((WiFiMulti.run() == WL_CONNECTED)) {6 T4 ^3 ]+ \9 J3 w/ z2 M
- HTTPClient http; y0 n$ w8 s7 T* ?8 [/ @
- Serial.println("[HTTP] begin...");
6 s" d( v) A E0 U! b% F - if (url.startsWith("https")) {
9 ~% A6 u4 G- b - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
J. s7 D) z/ `* j5 `0 A - } else {6 S9 X9 K; _9 a2 o+ i
- http.begin(url);
( t& T* ?! L- }& x2 R$ { - }3 x# [( j% s- e2 W' Z# D
- Serial.println("[HTTP] GET...");
" u- P0 ^' N# C2 J# w' ]$ I - int httpCode = http.GET();
# f3 K5 h: v9 b4 O. h8 I0 J! J/ O! S - if (httpCode > 0) {
; q; b O R' \4 m - Serial.printf("[HTTP] code: %d\n", httpCode);
. g' W% d& V: @7 j2 \ - if (httpCode == HTTP_CODE_OK) {
: ]) }- j7 L5 j- e - String payload = http.getString();
- z& h3 F( L* M+ S/ Q& p$ _ - Serial.println(payload);
, x& S2 {; c/ \2 l6 ^ - Serial.print("\r\n");
4 U: v/ J% D3 E* {$ b - return payload;
9 x: M8 X3 `& J# o" C - }
3 `# s9 B& T5 v3 o/ p - } else {1 {, k. m. A- h6 i& L: [
- Serial.printf("[HTTP] GET... failed, error: %s\n",
E& v& n5 S5 J - http.errorToString(httpCode).c_str());
) G3 m* u5 V' [- X/ w; k7 Z" Q - }
7 @7 [* @. T. e0 O k- V - http.end();6 x6 \9 \% ~/ k( {
- return "";- t# c0 T8 }3 C* V, Q- L$ c
- }3 V5 ]* t$ h; z8 F$ P8 N
- }" H. h- }* ~# J' G4 J% |8 t
- void mainAction() {
7 g( \5 I$ U: D - // 发送请求
3 G$ ^' R7 z( Q2 _# v1 l- { - doGet("http://google.cn");
' K; N$ j+ V! Y! a) }+ D - }
3 O, \2 |" B: p& i# D' c& @
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