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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)# n! E9 n3 j! P( J3 p, f5 p( L
- #include <ESP8266HTTPClient.h>
! H5 W3 N. {, ~& Q7 a0 A* m1 x - #include <ESP8266WiFi.h>
/ ?3 y( e* G2 f7 c3 X - #include <ESP8266WiFiMulti.h>) P6 _+ J/ M: | {# e
- #include <ESP8266WebServer.h>
6 U1 m: ?( @& A4 k- R - #include <arduino.h>
9 ~: N8 j8 {( Y: Q3 ? - ESP8266WiFiMulti WiFiMulti;1 M2 e8 P4 G8 H( F, K
- ESP8266WebServer server(80);% l- ^ P8 Q/ {* G: |. u+ Y7 L
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";# a/ A8 l; T$ a* p
- ADC_MODE(ADC_VCC);
4 K. r( T5 s& F! [/ s, J - void setup() {9 X Y5 z9 ?) y( r3 ^
- Serial.begin(115200);% }4 K4 ~4 @( C0 e: H9 g
- Serial.print("\r\n\n");
* s, n0 @! O) y - pinMode(2,OUTPUT);
% u8 ]( B, x1 r5 t - // WIFI$ ~) C$ H/ Q) r% ?
- WiFi.mode(WIFI_STA);* _9 {3 d+ e8 a0 {
- WiFi.hostname("Sparkle");6 H7 U" x- o% @0 Y2 ^4 P
- WiFiMulti.addAP("wifi ssid", "wifi password");8 ^' ^. g' y% b
- int tryNum = 15;
2 u/ |0 Y# }9 Y$ D# } - Serial.print("Connect WiFi");0 ]; N4 e: {2 W
- while (WiFiMulti.run() != WL_CONNECTED) {2 e# s* [' A$ z1 \# Y; v# m
- digitalWrite(2,0);
0 _8 z7 }& E& E& p - delay(200);! S5 A9 D9 p: O" D
- digitalWrite(2,1);6 u" o2 |( p( f9 I
- delay(300);
6 l d$ q3 ]) X8 G: S1 E8 b - Serial.print(".");/ c( \# k/ R$ s4 x; `
- tryNum--;. J+ a* v" q- v- W7 k, M$ ~/ J0 v
- if (tryNum == 0) {
! m" y8 ]/ O# {1 w8 s( c: _ - // 1min
; v: R1 s0 l. V! l, v4 O9 D - // ESP.deepSleep(60e6);- N; d* n$ z3 ?
- ESP.deepSleep(0);
5 X D7 X) ]) r; ` - }
! b) p7 A2 k( D - }- Z8 X4 z& S8 ]- }
- Serial.print("\r\n");
7 ^% K9 e/ X8 i( M; Q2 o0 a" ~ - digitalWrite(2,1);
- o4 s t P n: W( c; B - Serial.print("IP address : ");& p9 w, y' t6 i( a2 U* F8 K; _3 F* P8 E
- Serial.println(WiFi.localIP());
- U7 e; S( V9 j3 O3 f" h* ? - server.on("/", HTTP_GET, [](){
1 E$ W6 j; |6 b( D1 n, G5 ? - server.sendHeader("Connection", "close"); l( P' O# A' a* a& D
- server.send(200, "text/html", serverIndex);
6 x! o1 R0 ^: k5 _5 J - });
! B: k- ~2 Z# O7 E) ~ - server.on("/update", HTTP_POST, [](){' g6 \8 Y/ p, _; l- n. F: _8 m* o' |
- server.sendHeader("Connection", "close");# P' V K# f. I y( {; n0 W
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
9 ~! f. B- B8 ~ - ESP.restart();6 O. K- t6 v9 ~4 }8 y
- },[](){, s) I: F1 Y0 g a" k# H# D
- HTTPUpload& upload = server.upload();
4 E6 v1 }( X* k8 I/ O - if(upload.status == UPLOAD_FILE_START){2 q2 d7 ^& [: \
- Serial.setDebugOutput(true);
+ V( W9 G! c' _ - Serial.printf("Update: %s\n", upload.filename.c_str());% B1 _- ]5 @6 u
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;4 p) c5 c6 V# d- K( p/ b; l) j0 [
- if(!Update.begin(maxSketchSpace)){
+ g) o- H7 a7 `" z& O - Update.printError(Serial);
( o( \! k2 g% K i U; t3 n - }
( ?4 V) f) }$ y6 t/ y: P - } else if(upload.status == UPLOAD_FILE_WRITE){4 B0 z2 y8 l8 ~0 T4 t
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){1 x+ O6 H+ f+ K. h9 a
- Update.printError(Serial);# y/ U1 {: I) O% c& i& L$ n; e
- }
4 i/ W+ r3 |+ F1 D - } else if(upload.status == UPLOAD_FILE_END){
6 F) ` m! k+ a* L$ p; s% A - if(Update.end(true)){9 _. ?' G/ b2 Q0 @1 S1 M3 l
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
! F( x; U+ D; O" T( ? - } else {
+ W0 B$ J& ~& c. W" X - Update.printError(Serial);+ `$ ?+ k' [2 p/ }
- }
6 T5 b! ?6 h$ {! v - Serial.setDebugOutput(false);- a3 x8 u, s4 ^5 c
- }& N, S% w( C+ Y) k$ |
- yield();5 @) c6 f1 X/ b, P3 j; u# ]% a
- });! T1 Y7 O3 j' s7 w& v+ ^& t
- 5 k4 h* E) [' Y
- digitalWrite(2,0);
3 z$ }, W, B, ]7 j3 Y - mainAction();) t: b" d+ t. X& F, U# v
- if (digitalRead(0)){
0 w- X; X9 R2 m2 N9 g8 P3 I4 }7 h1 \ - ESP.deepSleep(0);
N! s* a8 `' k5 U - } else {8 y1 C, Y# [& { f' | t) v3 K% f
- server.begin();
& D+ f* S9 z: f9 o% B - }
9 }( L( W& K, C9 ?, \& h+ _5 k9 | - }: i" s& {$ ?; T+ ]
- void loop() {( O% z$ c6 P+ e; L# x. H
- server.handleClient();
y& G: K& ]! Y; S3 p$ k/ ]9 A - delay(1);: B# I! u7 S0 a7 u) t ~
- }
4 s: k3 b7 M# n# U6 h$ u - String doGet(String url){8 P4 |3 I( p. e; a" k
- if ((WiFiMulti.run() == WL_CONNECTED)) {, H {* A4 V7 F9 r6 \
- HTTPClient http;
* S6 V4 k: l) Y; C8 j" v v) w5 W - Serial.println("[HTTP] begin...");
) _3 S; e2 w3 p; [ l, P - if (url.startsWith("https")) {
) p$ Q" I8 z3 g - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
3 d% {/ ]1 K, P! ^9 s/ s - } else {; u( {; T8 u4 f- s M
- http.begin(url);
, ]; Z8 t0 f/ _' M V8 k( J - }
6 w |4 q- @7 X - Serial.println("[HTTP] GET...");
" R. E( z: n* k, @! \% d/ R$ | - int httpCode = http.GET();
+ Q' b7 |! V$ k) v - if (httpCode > 0) {
) n3 u8 w. v% L. L$ c - Serial.printf("[HTTP] code: %d\n", httpCode);# E' {) S/ d0 k
- if (httpCode == HTTP_CODE_OK) {
" D5 M. T! R9 }# j* d9 r7 e - String payload = http.getString();
) F) H+ ?7 k' G9 C( e- b* z - Serial.println(payload);
3 h9 @! D' Y& f - Serial.print("\r\n");% d# t0 L: D: ?& {1 n' }1 m% x% |
- return payload;
! ^9 F) t: f* u7 t+ d& |' A# E/ L - }
, @# K) O/ @* E+ m: [ - } else {
- X d. Q1 H: ]6 Q9 p! Y- p* J3 d - Serial.printf("[HTTP] GET... failed, error: %s\n",
3 d6 h% F! J; ]' x7 _1 k; n - http.errorToString(httpCode).c_str());; a. U/ d. c6 t9 _4 ~4 z. o) g, R- @
- }
% V; d- J" X, h) k% K1 C& X - http.end();
7 ~; F" O& D7 m' m1 t+ @1 G A - return "";
5 `3 i7 }) p; C* y+ k% R - }1 h/ q0 }( b# L' a4 d
- }% s) w& g, W% V d1 _0 E: s; K6 J
- void mainAction() {' r* w9 [, S, `% d( u. X" \
- // 发送请求
1 e- r5 X4 K, \2 Z9 M* h - doGet("http://google.cn");
% |4 B# w, K6 n - }$ T. l3 s: d: q7 W- |4 H
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