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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)% P6 h# E; k/ p- c3 t
- #include <ESP8266HTTPClient.h>
9 K# U6 j& d' G. g - #include <ESP8266WiFi.h>
6 t& m5 `. z* i: {( L - #include <ESP8266WiFiMulti.h>6 n% _* t5 v5 ^" m+ Z6 ~
- #include <ESP8266WebServer.h>7 J7 v) \* j. P
- #include <arduino.h>
, _3 y f# ~% T - ESP8266WiFiMulti WiFiMulti;
5 ^- d: j3 r, U9 b W( x( `5 K - ESP8266WebServer server(80);( s, f) C, A1 t4 X: f
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
, b) l! X3 h) I2 a, @# T( g- @ - ADC_MODE(ADC_VCC);
" M+ w' ^! f. \; }8 y' F, L - void setup() {$ r- t6 ?+ ^/ w/ ^- r! J9 x
- Serial.begin(115200);7 [' m* ^7 w) G7 h6 ]
- Serial.print("\r\n\n");
9 W x, p: W& j. C: V* @ - pinMode(2,OUTPUT);
/ P' C3 f; `2 U7 {7 i - // WIFI8 u" i' r+ y i+ q E
- WiFi.mode(WIFI_STA); ?, Y4 h0 F4 d, F
- WiFi.hostname("Sparkle");
8 ^" E% d; D8 K+ t) _6 k - WiFiMulti.addAP("wifi ssid", "wifi password");
/ ~+ {, b7 {# v& E" f, x, C- u8 b, ] - int tryNum = 15;6 L- C" f; V. C
- Serial.print("Connect WiFi");
; i& x" Q5 B: Z* Z( { - while (WiFiMulti.run() != WL_CONNECTED) {
& o. s9 R- |( S I/ T9 D - digitalWrite(2,0);
+ J2 \# |* [1 ?5 a" h& J! m - delay(200);' E' c; D8 E& Y% G1 E* J
- digitalWrite(2,1);
/ @" t5 L t. [$ q - delay(300);. ]) \( n* \+ h
- Serial.print(".");
" B4 z: v. M; a1 L - tryNum--;
$ T& t& A, R' F8 ^# \ - if (tryNum == 0) {) o- C- G: k( h, E, g+ b5 m
- // 1min( ^" U: T4 @% Z7 [3 ]& W
- // ESP.deepSleep(60e6);
6 b) h+ E6 S# B7 L. e - ESP.deepSleep(0);# W: F% c; B$ g4 s1 T1 {
- } y* L( H7 L0 m1 k
- }
1 a2 W8 H: q3 e7 E - Serial.print("\r\n");
6 q* x- g/ w5 k. v$ W - digitalWrite(2,1);
" w2 o& C) p; n8 A) J - Serial.print("IP address : "); B* Q' |0 Q& Y9 B
- Serial.println(WiFi.localIP());
- L. p1 z: y7 A0 k/ D - server.on("/", HTTP_GET, [](){
5 D8 x! a/ L3 y - server.sendHeader("Connection", "close");! ^% w5 q0 n7 W4 Q
- server.send(200, "text/html", serverIndex);% y2 `2 ?0 u( }6 n8 d- w3 Y. \+ A
- });/ S( \2 }* F( G
- server.on("/update", HTTP_POST, [](){) `3 R( i0 B9 d' Y
- server.sendHeader("Connection", "close");
. b6 j: j; ], x* Q - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
) X2 g" p& c5 a$ b1 w. @ - ESP.restart();
* X9 l* t7 `3 k( g) Q' K - },[](){
" l4 P+ N* k: \ - HTTPUpload& upload = server.upload();
5 g. V. ]9 V8 r) i( c7 t - if(upload.status == UPLOAD_FILE_START){+ X" v0 }1 N+ F" ?2 G* v* b
- Serial.setDebugOutput(true);
2 o9 J- V! H) k! ^2 p+ y - Serial.printf("Update: %s\n", upload.filename.c_str());. V# Q. R7 Z. n: ^4 V8 U
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;1 s4 B- A5 k; }( X" j7 [2 i7 S! Z
- if(!Update.begin(maxSketchSpace)){
! s# N. o& p: q! h - Update.printError(Serial);
$ z* A9 l1 ^, Q C5 R- ^ - }8 V$ S4 W. S7 k: k6 n) c8 O" T- @2 \
- } else if(upload.status == UPLOAD_FILE_WRITE){( }9 t* v% h6 J2 S/ [, ?
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){5 p* H# o. S; p9 y! e1 G, q
- Update.printError(Serial);* A& T9 q" u% V4 J& @, e6 {
- }
8 W: _* X: S0 g5 B - } else if(upload.status == UPLOAD_FILE_END){ H4 U3 |! Q/ \, u( M+ ]
- if(Update.end(true)){
- w& L) o: H& l5 ^' F D - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);8 h! J/ x* [# {; S: F9 N# y
- } else {
+ F! \3 \$ g, V/ `+ P4 U - Update.printError(Serial);
' M5 {' E5 n# H9 u& F - }
- V6 N5 K5 H& S8 J; c1 J/ X2 V% x9 d - Serial.setDebugOutput(false);
. X2 ^+ y' |. U6 H8 Q3 t - }
9 B7 i( ~4 @; B - yield();8 c4 C1 M$ B: F! M# y4 r: z) t3 p
- });0 X: b% W7 P3 H( z/ {
-
( e: E0 }$ F' F2 o3 d - digitalWrite(2,0);
; u7 g L1 m9 p' Q) ]7 W - mainAction();* k8 D% q( r. m& M" t+ t; I' V/ M
- if (digitalRead(0)){
: _& U! B3 x0 I3 |; l- l - ESP.deepSleep(0);! a; g: o$ w9 }; p
- } else {
* k8 r% l' c: W6 p' k( P - server.begin();
$ E3 R6 b. L, A+ D' x - }" `! X4 I+ q' I! \2 W2 A0 i( k
- }6 t8 V9 V# m$ t, v9 w7 [
- void loop() {, Y+ `$ J/ _* a
- server.handleClient();$ `. A4 v0 A& d- G* B
- delay(1);! Y {! [. P& |/ {
- }
B0 q! M# G# B9 `* u; ~( @ - String doGet(String url){7 A4 K: }# Q' V1 _
- if ((WiFiMulti.run() == WL_CONNECTED)) {: M) T7 l# }+ }4 l
- HTTPClient http;
( e$ c" q% e3 k8 G# r" R; o - Serial.println("[HTTP] begin...");4 J# r9 X8 y% u* J/ y7 `' n
- if (url.startsWith("https")) {% C7 C1 q* r" e. t. _5 e
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");% x( g0 E/ C7 W
- } else {
: W. T" E5 `, D' {& P - http.begin(url);
5 P5 a. M: m2 w$ H, z+ k6 {6 w - } Z6 \+ g3 L) S% _
- Serial.println("[HTTP] GET...");
7 D+ k! F; D% Z' v - int httpCode = http.GET();6 t$ i8 g" b5 w7 T* q
- if (httpCode > 0) {* X3 A( [, g+ L9 `! z" r3 B
- Serial.printf("[HTTP] code: %d\n", httpCode);
0 u2 a) h2 h2 ^$ J - if (httpCode == HTTP_CODE_OK) {
, K1 G: p8 h2 ]0 l- B0 H - String payload = http.getString();
% v4 T. W a% f- J5 Y7 D; f. X& z - Serial.println(payload);7 q+ }- q ?3 p/ b$ ^
- Serial.print("\r\n");
+ p6 N& s+ R* |5 O. w. o- ^2 U4 A/ g( B - return payload;
' C" C" v, p9 ]( F0 E - }* y+ q- Q& s! P% ^ V
- } else {
' x, t2 y8 V8 w( q - Serial.printf("[HTTP] GET... failed, error: %s\n",
* J) O b, J$ R2 B: e - http.errorToString(httpCode).c_str()); a4 w- N5 u" N2 t: T2 M
- }0 R9 Q0 {0 n3 O& Y5 z/ B0 q
- http.end();+ I* j" `2 c# W5 ^& d: `' N H
- return "";
% V$ H1 i6 l+ {& \3 _ - }
' N" Z! _# T5 N7 L) R2 T - }
. y5 j$ M$ u+ a3 H9 t$ C9 w) ^0 S* { - void mainAction() {8 [2 T2 t' J3 g: T1 {( C0 ]- x
- // 发送请求/ h4 s+ F; N3 s( X1 c
- doGet("http://google.cn");
+ b6 V; S9 y1 o7 j0 @7 \ - }
7 o/ E7 t9 y% I
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