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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)+ R/ A" _/ u! a
- #include <ESP8266HTTPClient.h>+ n1 `( k, A0 g* T3 A; W" R; [& v9 I
- #include <ESP8266WiFi.h>& N& _9 u/ B5 B7 n1 d4 e
- #include <ESP8266WiFiMulti.h># u* T5 r0 D# P) m/ J
- #include <ESP8266WebServer.h>" A6 v4 x( O8 k, l2 V1 Q7 l6 v( j
- #include <arduino.h>
! S, t6 w. a: [$ d - ESP8266WiFiMulti WiFiMulti;
" ^& J. b K5 Q. ?3 C" j - ESP8266WebServer server(80);/ y# ~6 r$ d7 ~2 ?' V4 G4 z
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
% M* n2 e8 a: z, `& E9 B) z - ADC_MODE(ADC_VCC);. m Q" h( ?0 ~- m" ?& _
- void setup() {9 W$ c' o2 ~1 S
- Serial.begin(115200);; } I" D5 C' |7 Q
- Serial.print("\r\n\n"); Q {$ b2 D g) L3 J2 N' y
- pinMode(2,OUTPUT);# X0 |& P0 n; K7 b r0 v) S' p' a3 y7 f
- // WIFI5 V$ Z- P. \, ?% Q& o2 v5 z/ Q) M
- WiFi.mode(WIFI_STA);# b0 l7 j5 a. ?, J
- WiFi.hostname("Sparkle");* I: R7 n, i- h) s O7 v
- WiFiMulti.addAP("wifi ssid", "wifi password");* Z, z8 I4 N% P' Z! C1 Z# a; @
- int tryNum = 15;; b' b v/ k4 g* Z+ I- I
- Serial.print("Connect WiFi");( \ v# x/ F: a% E# p
- while (WiFiMulti.run() != WL_CONNECTED) {1 V8 t3 V5 |! f
- digitalWrite(2,0);
; c& Y" b7 {& t. R - delay(200);
/ Y% G) v# ^, y! w }9 D3 | - digitalWrite(2,1);
, R0 S b" H& I9 b* s+ j - delay(300);: |( a. G" J6 i$ |5 Q
- Serial.print(".");
* b- T* c0 H: c& E0 D4 k - tryNum--;9 n6 T9 }& Z% Y& M% i, c
- if (tryNum == 0) {
+ o1 |7 ~8 |. z! H% U }" d1 e - // 1min7 Z, M. c( l! @+ k6 x1 [
- // ESP.deepSleep(60e6);* p0 M0 r2 P) G) M" u. ]
- ESP.deepSleep(0);
4 E0 [! O! N: `$ P0 F/ | - }
, {' R( ]/ }3 m7 a9 k$ V - }' y4 ^3 w+ ^3 H7 P3 ]# P- V
- Serial.print("\r\n");
% T! G4 v9 @7 t2 r/ d D - digitalWrite(2,1);
|; s$ U2 _4 d5 e" f2 t( l - Serial.print("IP address : ");
6 \1 M+ p8 |' X) N' u4 S5 I/ l: K) [ - Serial.println(WiFi.localIP());. Y) U. [' h; a( s- \
- server.on("/", HTTP_GET, [](){
6 [. K$ `& u% { - server.sendHeader("Connection", "close");- L0 |( d& G7 D, T* f
- server.send(200, "text/html", serverIndex);. k8 m% P; B* E6 K+ S# R' i
- });6 {8 @" p& H {8 M4 b, s# w) R% ?
- server.on("/update", HTTP_POST, [](){
, `1 y& Q( B6 A! t - server.sendHeader("Connection", "close");
" f( R0 Y5 s. K - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
7 @: [# s0 ]$ t+ k4 g7 x& d - ESP.restart();2 r4 n) I- U" n) t
- },[](){2 M5 b0 O0 M, a; {( s8 {
- HTTPUpload& upload = server.upload();* W, I2 G! K; j5 n0 K
- if(upload.status == UPLOAD_FILE_START){* l4 q' `+ W1 T* q. s
- Serial.setDebugOutput(true);
6 z8 ]4 T8 r! s6 N9 E1 V1 U0 a+ f - Serial.printf("Update: %s\n", upload.filename.c_str());$ h; Q, D4 I: y( B5 `
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;4 ?, k. j/ s0 G: |
- if(!Update.begin(maxSketchSpace)){
# [# I" ^- p( V - Update.printError(Serial);
. N+ i# v2 |4 t& |5 M" | - }2 Z# Q. v e8 v! I2 [# t, r
- } else if(upload.status == UPLOAD_FILE_WRITE){
' A& c1 c: i. ]& d) `+ }9 b/ t - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){! z6 ^; c, r- q( h3 f* ?+ t
- Update.printError(Serial);
+ W; T& d# A6 u3 V - }; J6 X: R$ \6 Y" \% v
- } else if(upload.status == UPLOAD_FILE_END){
) J& ~' w4 s l) y. V: U - if(Update.end(true)){
6 I# k4 j; ^1 R- m9 K6 r+ J9 p - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize); i. @# @* L) I6 T
- } else {+ K7 l4 c k6 R. F( B
- Update.printError(Serial);
+ J7 |0 C# s6 v8 c9 q - }
( w% e/ B* m0 B - Serial.setDebugOutput(false);& }# d: @) l$ Z: y
- }2 F, h- F4 A$ \4 m5 r7 r- K
- yield();
' }, d+ C8 J4 Y+ y - });
2 ?3 c3 @$ z% j' j2 u0 D -
* ~/ b3 p+ T. O$ l4 Y- F0 a - digitalWrite(2,0);5 {. s; Y0 m/ y' O& z8 A2 k
- mainAction();
$ m v/ N6 b1 w) I% P- A: o - if (digitalRead(0)){
; P( D; r! r% k, g! v5 V - ESP.deepSleep(0);5 b4 |4 U* ~' f$ t+ J
- } else {
. q; k6 G. i# X+ O3 ^ - server.begin();
! I5 J4 G" e" H8 X+ U0 E - }( u) T( @" Y' _
- }7 H# F5 f9 k% {/ ^1 X$ Q) s1 Y
- void loop() {
% Y) w, G# k) g: B+ M4 i3 r% Y9 q$ z - server.handleClient();0 y9 X2 l& V7 D
- delay(1);" {6 o- ~; [+ j
- }+ }, _7 }/ d8 P* Y# D5 d( e
- String doGet(String url){
. V- O7 {, y7 l! S: b - if ((WiFiMulti.run() == WL_CONNECTED)) {
+ S( \% X; Y4 |% w' D7 M - HTTPClient http;! Y7 Q3 p2 F( g7 x
- Serial.println("[HTTP] begin...");
3 @' ^+ ?( n" F+ F - if (url.startsWith("https")) {+ q* Q0 y/ O& M! @' n
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38"); f/ F; Y7 e: |: `" o$ v) [; A
- } else {
+ ~: y$ B1 ]# r - http.begin(url);4 Q8 Q: z8 U7 w1 e
- }
$ I" J: T$ j6 Z3 d/ k1 j - Serial.println("[HTTP] GET...");
& z! _+ m! R' G/ n$ W - int httpCode = http.GET();
, D8 |5 X* v3 x1 p% S% q, } - if (httpCode > 0) {
; C# F# X$ o/ X# M, [8 I - Serial.printf("[HTTP] code: %d\n", httpCode);* B. D$ M/ B7 t" @* Z* P
- if (httpCode == HTTP_CODE_OK) {
% e c2 U' h; l$ h. G7 F8 K" ~8 X - String payload = http.getString();
" U7 O: l) ?- y. M1 c4 X9 U h - Serial.println(payload);4 o: u1 @5 P8 P" z3 _
- Serial.print("\r\n");. f b& G8 T) l3 }5 d
- return payload;% J' j* G* P( {: h% K* J
- }1 g% G+ x* _9 O; |. ]
- } else {5 I3 K0 m' b7 n
- Serial.printf("[HTTP] GET... failed, error: %s\n",. R# T5 G/ q2 b' z
- http.errorToString(httpCode).c_str());
: {8 d4 o1 e6 {, a( k, L% q% W ` - }. p- I9 r5 o' ^; n
- http.end();$ y# \/ v/ ?5 u9 S8 Y
- return "";- U7 ~& `/ G8 K- X$ }" c5 n
- }
4 d1 ~9 S% d; q7 i! ~( \% u7 h) ] - }& c9 k+ Q9 m6 {
- void mainAction() {
; G. {2 x4 d% ^: H+ M# W6 y; g _0 n9 ~/ I - // 发送请求
5 p$ f' e; _# [3 i0 |) U - doGet("http://google.cn");" O- D8 D- M/ E& E) Y) }2 N6 _
- }0 [9 f! C% x4 c) [
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