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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), M% @5 t0 \/ [8 q* i; I. D0 L8 {
- #include <ESP8266HTTPClient.h>) c0 A( ~; z& s& {6 V( ^
- #include <ESP8266WiFi.h>
. y, z" }$ E M: o c3 i# ^- Q* d - #include <ESP8266WiFiMulti.h>& _. `. v" j q) U7 O
- #include <ESP8266WebServer.h>
$ L. C, u {' e( }9 D/ @ - #include <arduino.h>' A. D: y* `+ h- _0 `
- ESP8266WiFiMulti WiFiMulti;
8 C$ `1 b; T# `) J6 g - ESP8266WebServer server(80);, O' X3 d! U/ F5 t; a' A8 D8 m
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
, q) w1 J# A" e# w& U0 d - ADC_MODE(ADC_VCC);) ^5 x9 f& y# T7 `
- void setup() {
6 r& m7 s: _* \3 f5 a# T - Serial.begin(115200);
; U4 M l. D7 W W - Serial.print("\r\n\n");- V. X. W: L) u. U& ?$ Q8 C0 v
- pinMode(2,OUTPUT);( s- R k. ?$ f* J2 M3 Y
- // WIFI) Y% S4 ~* K8 E; d( S
- WiFi.mode(WIFI_STA);. c2 a5 U' x5 u ]9 C
- WiFi.hostname("Sparkle");
( ~. c+ j) {7 l: I5 v9 G: Q1 ] - WiFiMulti.addAP("wifi ssid", "wifi password");
0 ~) W ? T' a3 M - int tryNum = 15;
8 ]0 t! A9 u7 L - Serial.print("Connect WiFi");
' d' |: [, \) \0 f ^* S$ @, W0 D - while (WiFiMulti.run() != WL_CONNECTED) {7 u0 L) J! G- k! j4 x' r9 N
- digitalWrite(2,0);8 {& B. U* R. L' N5 L
- delay(200);$ k8 x/ U3 O$ _
- digitalWrite(2,1);
1 v* d9 [: ]4 r p5 C2 l, _, B. R - delay(300);
" }6 ?4 d1 |( \" L/ {' m F! r - Serial.print(".");
( j$ F J$ f- u& |7 t - tryNum--;( K0 A; k& i+ X* h4 ^/ y* x
- if (tryNum == 0) {
7 w3 ^/ s2 [9 ]0 J - // 1min+ o4 L8 G' o* }
- // ESP.deepSleep(60e6);, q) U0 Q6 C. @! v3 N. S
- ESP.deepSleep(0);4 E6 b' U+ W P) J9 z
- }
, V# ~6 v7 j% N+ W0 _. Y9 P - }) ]0 S8 G+ ^( L! [" P
- Serial.print("\r\n");
* T9 I8 a/ M( {" s - digitalWrite(2,1);
) [3 B! s9 t+ y$ c* W0 c - Serial.print("IP address : ");
& `: O# V6 U$ [8 c# Y - Serial.println(WiFi.localIP());
' ^4 g; }* V( b - server.on("/", HTTP_GET, [](){9 o4 {# M" t) k: C1 l& P
- server.sendHeader("Connection", "close");, u9 }/ W* `! Z! Y G1 @: j
- server.send(200, "text/html", serverIndex);
0 b# ]4 s% e/ P - });
% O! G! n5 F* u& O# }2 f* m - server.on("/update", HTTP_POST, [](){6 g% {. j( A2 H q+ e V/ {, B. s
- server.sendHeader("Connection", "close");
" `$ o4 Z, { `. K - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
9 Q# W9 i( C/ o# @ - ESP.restart();
# k2 k9 d/ |5 \7 V8 X8 H - },[](){
' |( a9 k5 c; s0 T) j* } - HTTPUpload& upload = server.upload();
5 L/ K) x7 V; j9 k - if(upload.status == UPLOAD_FILE_START){. V: k5 A5 |3 ]+ g8 _. c
- Serial.setDebugOutput(true);
$ g! F) \' C) z4 X/ ]3 K, c - Serial.printf("Update: %s\n", upload.filename.c_str());- |- z! [3 y _3 a
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
2 J/ N' g3 @1 X c/ f% J - if(!Update.begin(maxSketchSpace)){. N, |( X) J# D# E
- Update.printError(Serial);& d2 u& T1 A6 G# w* u9 L( S3 R. A
- }6 B1 W3 t$ }( S _' I* F
- } else if(upload.status == UPLOAD_FILE_WRITE){
- R7 {, Y/ k( a* P, n! m - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
6 W: \, B1 _1 i% a* a - Update.printError(Serial);
0 z3 d8 [+ Y" t4 b, z0 Y- r8 @ - }
2 |- G% B; h1 `# ]' g: ` - } else if(upload.status == UPLOAD_FILE_END){; s* K; \2 B0 B- x; }5 I
- if(Update.end(true)){7 O# M' _% L4 |& s. U9 n
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
1 M1 B" J/ ]- J - } else {+ ]; T! P' I) ]* h
- Update.printError(Serial);4 `& ?8 P& [" n* z4 c$ O9 o4 i
- }
4 x+ j, z, w4 I( S8 k% u- G - Serial.setDebugOutput(false);* @' V# X9 T/ A8 p$ z r
- }) N& I3 d2 d, a6 A
- yield();' { @2 D9 X0 l2 }6 d1 m" R9 Q! |* h3 s
- });
- c9 f+ C9 O _ -
! }; d* `% }6 U% h4 } @ - digitalWrite(2,0);
2 J' P5 B! ?6 Q6 J" j2 Q" a - mainAction();
/ K& Q7 O2 N: m% [ - if (digitalRead(0)){ X9 P$ ^: Y4 _ b/ y
- ESP.deepSleep(0);
! u* T ^. U7 A. Y - } else {2 Y3 _2 K9 {/ ~% @$ }( ]
- server.begin();
& W$ h+ h: Q V% Y0 q) d8 S- s' q - }
( G5 q, F1 h* ]& z6 @% a5 a - }
7 b& x' J: _4 A9 r8 d2 k - void loop() {
2 U% d) ]8 o% m9 z - server.handleClient();
# S7 m6 Y, F \. _3 q D* v - delay(1);& U6 F: `. Q. I- l# [
- }
, p. T% X; Q$ J3 l( U - String doGet(String url){$ e% a( d) U( s& Y$ y
- if ((WiFiMulti.run() == WL_CONNECTED)) {
0 _/ ^ @- |* Q0 A/ T3 U- h! a - HTTPClient http;- s/ F( N5 e$ h0 G, W
- Serial.println("[HTTP] begin...");2 u- v5 R7 Q; B8 s F( q1 N
- if (url.startsWith("https")) {
2 C$ h4 o) x" B" e! W8 b9 s - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");0 r! ?% B- j5 e2 F8 ?" i( b
- } else {
) }* h) \) a H/ G( `6 W - http.begin(url);! |: \" v+ s2 T; P) c% Y
- }: p" c; I: Z3 C1 D' y6 \9 |
- Serial.println("[HTTP] GET...");" s' G7 r$ P O* P7 k4 `' I
- int httpCode = http.GET();1 v. x; Y2 _0 ^0 o, A! D/ x
- if (httpCode > 0) {
$ O9 T: J' `# b+ [' ~ - Serial.printf("[HTTP] code: %d\n", httpCode);* b) V2 F# r* H: P( t- p
- if (httpCode == HTTP_CODE_OK) {- `! `% j- O/ X0 ~
- String payload = http.getString();0 A' ]- R7 X3 Z
- Serial.println(payload);" @1 J1 L/ y6 f/ P6 b! w
- Serial.print("\r\n");4 T0 z- L/ D9 i4 i8 {
- return payload;# W6 ?5 a" g* ~# ]% s5 W
- } ?0 S) `7 n* u' C( ?5 W% C
- } else {
1 ?. O& `& O. Y2 Y9 I# y! c) @+ ^ - Serial.printf("[HTTP] GET... failed, error: %s\n",, u9 S9 K) p2 u( `! {2 M8 d, R
- http.errorToString(httpCode).c_str());) T$ K% p8 s6 N& k3 v- T/ f2 X
- }0 |1 b1 e- Q5 ]6 D2 w
- http.end();) |4 h3 p, R1 E" B: k
- return "";
, K; W7 y* F7 @: j3 g1 \* s - }. u' A3 R# P. b" N. ^4 \9 m; S& Z
- }
5 D# K+ ] T* m: e8 |1 i; p; f - void mainAction() { y$ E2 f+ F C9 Y
- // 发送请求
$ x0 h& V& i+ d! `& T - doGet("http://google.cn");6 u' ~1 y7 r+ V# n/ D+ ~
- }
- j* {0 d, U* p4 g z9 B) o' ^$ \+ G
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