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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% }* S* a8 f. Y1 g' L! i- u- #include <ESP8266HTTPClient.h>7 [7 S; q( z d) g, z
- #include <ESP8266WiFi.h>
8 {% r; R7 e5 m( i7 J, ? - #include <ESP8266WiFiMulti.h>' w3 `; |9 B- t2 ]6 l+ N
- #include <ESP8266WebServer.h>) ?, v$ t) D/ F" Y
- #include <arduino.h>
) E: z8 ~3 X& `# F4 Z4 R - ESP8266WiFiMulti WiFiMulti;' F% d% {; F" ^
- ESP8266WebServer server(80);% r+ V' {7 K: {. H- T
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
! ^* w1 S9 k2 ] - ADC_MODE(ADC_VCC);
7 J8 X% G; m% |9 x0 h5 B - void setup() {3 U' D& O9 f/ t0 Q. J" S
- Serial.begin(115200);
' D% j/ n& E. o% ]8 T: F; g6 n - Serial.print("\r\n\n");
# ^3 V2 F% y# ^+ b9 P! R! s - pinMode(2,OUTPUT);
9 ]- T( ^ F) T2 p. Z9 o - // WIFI8 O' ~) v+ |' g1 y5 Y% P0 Y" E& G( z
- WiFi.mode(WIFI_STA);
% k' Y1 y$ l: U8 ` - WiFi.hostname("Sparkle");
( R) q, x9 b7 f0 j* B: u - WiFiMulti.addAP("wifi ssid", "wifi password");$ h4 c; `# [/ T+ e
- int tryNum = 15;
: ^" I( r& a) L& O. S; T6 m5 u - Serial.print("Connect WiFi");. I" K% X0 l+ H/ V8 n$ o; ^
- while (WiFiMulti.run() != WL_CONNECTED) {
$ q, | R4 s# Z5 v$ C& d7 R+ ^ - digitalWrite(2,0);) ^- z" R. v. q9 }# _, }, y
- delay(200); \* o% V( v# u/ D6 ]! e% n* t
- digitalWrite(2,1);6 H/ ^; u5 z3 t) W$ i& v
- delay(300);
2 t7 K( |0 o6 Y" O% X; j( u. w$ O& W - Serial.print(".");
( @, D& m& y, d8 ^) v0 `& p; M' u - tryNum--;
. }0 J6 i5 s9 D - if (tryNum == 0) {: F" W8 ~+ g, O! C: y! o
- // 1min
7 t/ M/ O0 `! k) \ - // ESP.deepSleep(60e6);6 T6 H( g/ t. B1 b5 H3 X7 \ E4 U
- ESP.deepSleep(0); C H! g: }5 M
- }
! C; j- L( C9 J" [3 V: S - }' P5 {- t6 B/ x1 F: B) _1 _
- Serial.print("\r\n");
Q6 \( l& ^4 @) J. S$ f l" u, r6 C - digitalWrite(2,1);
0 r- T# t9 B; e; Z - Serial.print("IP address : ");2 z/ D* [; o5 q# n- E2 ?
- Serial.println(WiFi.localIP()); q4 j3 r4 I! S& ?' w4 \0 \1 Y) V' L
- server.on("/", HTTP_GET, [](){
! Z9 x: Z: e8 |, A" w - server.sendHeader("Connection", "close");4 E* k! v: z- h2 K. L
- server.send(200, "text/html", serverIndex);2 F f, j8 S2 A* S1 B. T$ i& E# e
- }); w# E- s/ Q$ n
- server.on("/update", HTTP_POST, [](){- {$ U ]. G0 ~+ h
- server.sendHeader("Connection", "close");+ ^1 b3 u3 k- O! H- k( J. L
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");9 @" L% _* H& G$ _1 c9 i% p! `
- ESP.restart();
% L" Y# Q4 @+ [: H* e - },[](){
* A/ P0 @ n7 `$ ~: _; Q# x6 B4 l - HTTPUpload& upload = server.upload();# k* r; h3 L& ^( Z( r' ^
- if(upload.status == UPLOAD_FILE_START){
) o. ^% h8 ]$ a - Serial.setDebugOutput(true);
% h! p% m4 `; y5 ^. T - Serial.printf("Update: %s\n", upload.filename.c_str());7 \/ x. s) ?* N& {! u5 P2 q0 o) s; z
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;0 g8 m% l$ C& {. L
- if(!Update.begin(maxSketchSpace)){( l8 W6 B3 E$ \4 G( D! c
- Update.printError(Serial);
% A; r. \9 O5 k/ D& _ ` - }
" q+ S( S P7 C$ Z C2 f5 X - } else if(upload.status == UPLOAD_FILE_WRITE){
6 ^1 `/ f9 v, b - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){: _+ g2 C5 v3 R$ x, d
- Update.printError(Serial);
" D/ P- b- |- i. ~ - }
$ |) Z( h5 h9 i$ U" X( z5 g3 T& M& V - } else if(upload.status == UPLOAD_FILE_END){
9 F0 ]. Q5 m) W9 P - if(Update.end(true)){) |5 [, G2 i6 X4 z4 N9 w" ^
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
@: I* S% D& M1 }# x - } else {
! `6 ]% e& p1 c - Update.printError(Serial);* `6 E# r8 g7 S3 ^( z
- }
2 t. @6 A/ V% K: p+ Z" u7 Y3 | - Serial.setDebugOutput(false);
+ l! s9 H; x% f7 d' ]3 g7 _ - }
$ \/ }& ~& S9 |8 \ - yield();
; v* A' Y- N2 H6 z5 P - });
* h* c3 B6 { t* E" B! l$ ?: z -
* N# W- r+ T! a& } - digitalWrite(2,0);
! b$ \2 I& }1 O: d - mainAction();
' c. s# h0 m- L+ k5 i, p - if (digitalRead(0)){# d& B" h$ W Z& L) T$ m" H( B, D0 F2 f
- ESP.deepSleep(0);$ ~% B9 [8 g8 j- ?. ]8 `
- } else {; G! h* e0 w x, E% V
- server.begin();
0 X+ j8 G$ r! c - }. x5 D" r. L. H4 h1 z- y
- }
, @% A7 i8 K+ W8 n! {2 { - void loop() {3 \& d/ N/ Z# r9 Z' A5 R( q
- server.handleClient();
+ V# ]" @, c5 _; ? - delay(1);7 P5 j e. I7 ~, E4 T( d
- }' F) g$ ?; H. W* @2 G
- String doGet(String url){
) |( {! \( @. G e& ^" X - if ((WiFiMulti.run() == WL_CONNECTED)) {
$ `8 q- J: ^( P/ k5 \. t* h- _ - HTTPClient http;
, P) p5 j& C, T* w, t - Serial.println("[HTTP] begin...");
, ~) v# _$ X, ?0 N- { - if (url.startsWith("https")) {' f& S- t4 n, L( [5 ^
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
" E6 E$ E6 [4 h o+ d- `( c - } else {
4 `) U% u& j' f - http.begin(url);
7 j1 i4 k" r! e$ G - }
( S) l: \* c- e - Serial.println("[HTTP] GET...");
+ P: t; I1 e8 q: i1 t I - int httpCode = http.GET();1 S3 A) c% O0 A* {
- if (httpCode > 0) {. [& s# ~5 t; z& C( b$ b3 {
- Serial.printf("[HTTP] code: %d\n", httpCode);
4 B) O! x6 l% C5 J' J - if (httpCode == HTTP_CODE_OK) {# b6 b1 f2 N) \# S6 z
- String payload = http.getString(); T3 e' K2 X8 r/ M* t7 N! W% e) J
- Serial.println(payload);
7 C2 K! f. l' i5 E - Serial.print("\r\n");
; z3 z) m K0 }; F$ t+ {$ T - return payload;5 w& R) h; Y; Q" X
- }
$ ^4 \! f# j* L7 r& d - } else {; G. ]$ t' I% c
- Serial.printf("[HTTP] GET... failed, error: %s\n",2 I0 j/ A" ~+ o& D1 i
- http.errorToString(httpCode).c_str());
5 N, k& m- A) K. X% M6 H - }; y6 d l; E/ }: M* t, ]
- http.end();
& D% ]0 ?" N2 X; d - return "";
+ C0 {, f) Y2 ]) X2 p - }. q1 u/ a- D) p |' }
- }
: V, C* `: \- t/ O1 O: l - void mainAction() {
2 c7 t( B& v6 X: j* z4 ~& \7 x - // 发送请求) F/ i. o3 \& U. J- `
- doGet("http://google.cn");
4 B* W/ d* |( h3 M1 W - }% q. V/ n; Z, p
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