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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): \ @" ~& L; T) x1 J' A
- #include <ESP8266HTTPClient.h>$ n1 _3 s9 m% A- j! J
- #include <ESP8266WiFi.h>
! e& B m6 P0 X }' |2 U% A1 y - #include <ESP8266WiFiMulti.h>/ T" v+ t! x F% U) F
- #include <ESP8266WebServer.h>8 [+ G) s/ n x
- #include <arduino.h>
% h! [+ i2 K' }$ U: V& Q - ESP8266WiFiMulti WiFiMulti;
! P) H2 V3 ?, {! u7 f: q - ESP8266WebServer server(80);* q* Y' F3 [' s# f z
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";8 p( l& v8 [$ |
- ADC_MODE(ADC_VCC); P, }5 X, }4 _0 G
- void setup() {
6 Q+ @. x6 v2 z6 j2 ]# p* @ - Serial.begin(115200);
1 Z5 ?5 v: n' O- ? - Serial.print("\r\n\n");
# L' ^5 ^; x* w - pinMode(2,OUTPUT);% B7 g0 F; q2 [. F7 b
- // WIFI7 q! @; R* M) s* a2 @1 Z# u
- WiFi.mode(WIFI_STA);
! g; h2 _+ d+ H. U K2 Y* X& g$ K - WiFi.hostname("Sparkle");
/ I& G; l' D) J$ r; F - WiFiMulti.addAP("wifi ssid", "wifi password");9 J7 ]3 T2 H8 r) o
- int tryNum = 15;
) v; e* i( O P6 u: P - Serial.print("Connect WiFi");! P4 b6 |" M3 {0 ?
- while (WiFiMulti.run() != WL_CONNECTED) { r! q8 }* V! j: p1 A0 g; r
- digitalWrite(2,0);
- T& i/ o% n& B8 U ]7 I+ \6 [ - delay(200);
( w0 R1 ^ T1 ?; y. x - digitalWrite(2,1);
8 M2 [' Z' ~, W6 H# a - delay(300);. N- y5 v. B p$ `: t* x) O
- Serial.print(".");
5 S' a7 F% m7 j - tryNum--; m. h3 h' p1 g" V) z
- if (tryNum == 0) {0 d- `+ X; ?' |6 o
- // 1min$ y- l, f6 Q4 x5 A4 i4 B
- // ESP.deepSleep(60e6);
& g" p) O, W+ q9 e: M - ESP.deepSleep(0);- t9 S, K# r& O0 J: b8 a( m
- }6 m- k; u0 a0 I
- }) E) r$ \; L3 ~) K0 |6 A: r
- Serial.print("\r\n");3 x- z; V! s8 x; J$ A
- digitalWrite(2,1);
8 o* D* F# e0 |! ~ f2 g - Serial.print("IP address : ");
; A% }$ m0 Y1 J - Serial.println(WiFi.localIP());" q& t# t" |" a0 B9 D# X, {" S
- server.on("/", HTTP_GET, [](){
5 J4 T# t, D- x& U( M) p - server.sendHeader("Connection", "close");
4 y. \2 U: c# P; f - server.send(200, "text/html", serverIndex);8 P) m+ c8 K6 _5 y: O
- });8 J1 r# @+ _. D Y- a5 B
- server.on("/update", HTTP_POST, [](){6 t# ?+ I3 H7 _9 F, u$ z* @) `! f
- server.sendHeader("Connection", "close");0 G% J& p5 g a' _$ f& A/ s/ L
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");8 o h4 I5 ~9 K
- ESP.restart();
' G. B, z( V) X5 F# ?! V* ? - },[](){
9 [. { V0 }6 b+ D - HTTPUpload& upload = server.upload();
$ d9 N8 F$ e, I# E - if(upload.status == UPLOAD_FILE_START){
* j; v: l! q/ y6 P - Serial.setDebugOutput(true);9 Y2 n9 D! \' Z5 U
- Serial.printf("Update: %s\n", upload.filename.c_str());' ~2 U2 F* l4 D7 F2 N
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
, w r) @# G" |2 a1 G$ E - if(!Update.begin(maxSketchSpace)){ q E. s8 V( o" E! f( a+ L
- Update.printError(Serial);
4 r7 L; t" k' [/ e. k- D" r* ? - }
+ I. [" c. {8 g4 x" g: F - } else if(upload.status == UPLOAD_FILE_WRITE){
0 d1 E% }; a. r - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){* q/ p- Q0 t6 ?3 [! k$ C0 S* ]
- Update.printError(Serial);
5 n. J1 D4 A" ` - }
# B- C' z' u" {9 W K) O# V% { - } else if(upload.status == UPLOAD_FILE_END){
( x+ J% s) d0 t9 V; @ - if(Update.end(true)){
- x6 u) N) j \" R - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
! S% I! o. I* d( A* ? - } else {
4 Y e% f/ Z u- u2 K+ ] - Update.printError(Serial);. p3 ?" q; }; W2 U& K1 R
- }
. a& w- J# s: x9 a, N/ y2 x+ k - Serial.setDebugOutput(false);
3 |8 J8 L @9 @5 \/ d - }9 B, P8 K" C+ u$ N$ S
- yield();- F q2 w, f- s o, _; G6 A- x
- });+ x1 Z. k* F7 z# I) J
-
# ] Q4 g0 n g2 h - digitalWrite(2,0); q" \( r5 V+ a% t
- mainAction(); P; [9 P2 }$ w& Y' z6 j# Z
- if (digitalRead(0)){: s* k! b) G1 Z+ Q K, F( |
- ESP.deepSleep(0);
( C5 A6 F: g# d# Y% G* A - } else {! G. `! i$ `# ?7 H) H
- server.begin();
* X2 l) @( N0 P4 K, ]# T - }
( q+ a! R! h( | - }$ ?! B- q# B' H/ U g
- void loop() {
9 J) D6 Y' Q1 b; R, P3 _; _ - server.handleClient();+ }! D# D8 k, r, u) Z
- delay(1);5 w+ @; [( x7 }; k% l' i
- }0 L3 m, p% e/ E9 Q; l1 c; `
- String doGet(String url){) h8 ]( R, |% _2 O
- if ((WiFiMulti.run() == WL_CONNECTED)) {- w* K" A8 U5 i
- HTTPClient http;
% j% K/ s1 @# D2 h: I8 b - Serial.println("[HTTP] begin...");
+ P' m& J( N$ @" `: A8 \ - if (url.startsWith("https")) {/ Z2 W2 [, M" L- q; n$ q: I6 v+ Q
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");8 _( v/ F) R: q+ U
- } else {
, {' l4 L7 F2 s1 {5 `$ C7 y - http.begin(url);# M- S" L" m$ x0 q1 F% F
- }: K6 j' j5 C5 X$ u+ ?4 g( W) _
- Serial.println("[HTTP] GET...");( i# ]; c3 N! Z0 | t
- int httpCode = http.GET();. r) k: _! K4 l2 l' y6 q! i
- if (httpCode > 0) {+ V8 P5 v3 i. {9 ?' m y
- Serial.printf("[HTTP] code: %d\n", httpCode);" S+ F, E. _% v( p% @6 V1 G* V
- if (httpCode == HTTP_CODE_OK) {
) ^% Y- M9 N" n. l - String payload = http.getString();( A( [7 N8 C0 s' X
- Serial.println(payload);. {: _/ {3 p( |5 L. K$ q
- Serial.print("\r\n");
$ w/ k# K: f% n4 G& m4 Y O - return payload;. ?8 x" b# L- G
- }7 a# U* H, y$ J, \+ n4 o; }
- } else {" u c. {* m% H5 n
- Serial.printf("[HTTP] GET... failed, error: %s\n",
7 K$ q! _, ]( F( J# K - http.errorToString(httpCode).c_str());
6 l- I0 c+ F- O! F - }$ c& A( Q- V5 c
- http.end();
- q p: N. s- X' l: l1 w; A - return "";# Y, V+ X! v! E/ [$ F, O8 i+ [) h
- }7 P8 \3 E7 D9 a4 B5 _7 F5 J
- }# B9 `- [0 Y" E$ R
- void mainAction() {
( _, E0 c) q9 h. |5 a - // 发送请求0 G" y# u* m, c6 j+ e( J
- doGet("http://google.cn");3 L+ ~) T& \ w# z4 u' b
- }
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