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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)
% D& K5 t+ z; v' s/ w$ H9 H- #include <ESP8266HTTPClient.h>
0 \ P& \$ F$ d5 z" ]$ Q( C - #include <ESP8266WiFi.h>$ [- v+ V f9 P) t; R) D0 L6 h
- #include <ESP8266WiFiMulti.h>
* ?: }1 k0 u# Q' A9 P - #include <ESP8266WebServer.h>
. M* N# `! P4 y6 W' s4 @ - #include <arduino.h>2 `# E* Q* z" @3 W
- ESP8266WiFiMulti WiFiMulti;1 z$ Y3 M5 }4 E x
- ESP8266WebServer server(80);3 O1 O& ]. M' M1 F
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";+ H* b0 J* P: L& ?
- ADC_MODE(ADC_VCC);
" C- m, @2 t: E- A2 w& ]& n& |5 Q - void setup() {+ ~% {, w( M4 v* Q+ a, C7 A: F) `
- Serial.begin(115200);
7 Q" f0 C) Q4 h0 e( G - Serial.print("\r\n\n");
2 z1 J8 G# i+ A ?( j; j - pinMode(2,OUTPUT);
6 x1 R) d+ l0 G- A5 k5 T0 H8 m$ F. [ - // WIFI
D/ q2 q" n) ]* i" v - WiFi.mode(WIFI_STA);
$ |$ C0 S, r8 L$ T1 T6 I - WiFi.hostname("Sparkle");
! o2 r* O8 h: `4 d. p& [4 j - WiFiMulti.addAP("wifi ssid", "wifi password");4 L( T+ e" ]: ~; T% h$ z( x
- int tryNum = 15;5 m/ ?, v8 M6 ^& i+ A$ @# a" w) K
- Serial.print("Connect WiFi");
) A( I) `# j! H+ q. h, V - while (WiFiMulti.run() != WL_CONNECTED) {
: N5 g1 `/ K" h) I2 P' X* a v - digitalWrite(2,0);
- ~- }9 @4 [9 W% m, L* Z - delay(200);) o9 Z; s) Z% o' V
- digitalWrite(2,1);) A8 } f; E1 r2 q( L) W2 {- J
- delay(300);- |$ x/ W0 R, M& w. f
- Serial.print(".");
1 [ F6 c: i6 x7 A' ?% q) R- a - tryNum--;) d5 ^$ w3 H) |0 B; J' T
- if (tryNum == 0) {+ [$ A! z7 ]( a9 F! R
- // 1min6 _# p' p+ [( N, @1 j' s
- // ESP.deepSleep(60e6);# W$ ]! Q1 N; p9 B
- ESP.deepSleep(0);
. ]7 i( R2 y+ R6 J) D$ g C9 ?& R; u3 o - }
0 r" p! r1 b4 \; {1 T - }! B+ N# H+ R* h. ]. B& [( K' w/ q
- Serial.print("\r\n");% P9 N* I9 m9 H( o* r2 u5 ?
- digitalWrite(2,1);
h( g$ W" n7 y% K - Serial.print("IP address : ");
2 p1 V3 D* J) h' K* i4 D1 ~# @1 i- p - Serial.println(WiFi.localIP());, C' c# s4 u4 c& }8 k
- server.on("/", HTTP_GET, [](){
. t- ~5 Z/ M% }- O, y" Z/ s - server.sendHeader("Connection", "close");
) y( H9 ~4 W) M- m l! N - server.send(200, "text/html", serverIndex);
: u- R a0 k# A3 F. k- @* h - });* _; {7 R5 A! M I& u
- server.on("/update", HTTP_POST, [](){8 _9 ~( H/ A& ]0 R2 n+ B2 ]
- server.sendHeader("Connection", "close");
+ p3 U$ `: J1 B t - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");4 r" L. f" t: x6 s
- ESP.restart();$ s- V+ A/ o% G1 X9 Z
- },[](){# ^) n2 s5 W9 r; l# K, E
- HTTPUpload& upload = server.upload();$ {. @) Y9 ~# K7 {7 P
- if(upload.status == UPLOAD_FILE_START){
2 q+ I$ M1 G$ v+ r% |$ j5 y - Serial.setDebugOutput(true);& Y4 y' t2 L+ {9 O ]$ n7 f3 I
- Serial.printf("Update: %s\n", upload.filename.c_str());' @( q4 u. g/ ^+ C& ~
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;& z# p {! ?! c; g1 b9 c5 H, B2 N/ j
- if(!Update.begin(maxSketchSpace)){
0 {- t$ z+ t5 `% d' Z, u - Update.printError(Serial);
3 S# f% T' e3 M( l0 a5 e$ v1 p0 o - }$ q$ f; W% r+ i, e! k
- } else if(upload.status == UPLOAD_FILE_WRITE){# ]; N1 N, Y/ g+ B
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){2 r+ Z) P9 p; j9 g
- Update.printError(Serial);
, \9 a' ?& P" A% \3 L - }! M! A% M' e2 ~+ O6 L6 h
- } else if(upload.status == UPLOAD_FILE_END){
# e+ S* ~" H5 t: E" v" g - if(Update.end(true)){
& R) s" C" F' ]9 @: ~. p; e - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
: X) Y& R8 ]. U, P! x- Y: Y6 @6 Z: P* l - } else {
+ z' | L# m5 \7 ^: T9 S - Update.printError(Serial);
/ l' }1 ^0 s' G7 f/ N" Z4 ] - }
7 Z% T6 _$ ^' C* X1 ~ - Serial.setDebugOutput(false);
" r1 [% T) k* g; w; ? - }
' n: ~0 X% l2 F4 ^7 @ - yield();7 x1 x, m7 w; z
- });
! p0 B- A0 m0 k7 K# U -
3 r% S' t* a& Q; U - digitalWrite(2,0);
8 A$ Z9 L0 [. v& F7 I - mainAction();
7 f* a7 t9 o/ I2 r( p) U# R - if (digitalRead(0)){0 V3 }' w9 e6 u/ q$ c. i
- ESP.deepSleep(0);
3 ~) ]% ?! L5 ^3 S+ @2 c3 T& x$ r$ l - } else {5 T3 @( |, a4 R9 r0 d
- server.begin();5 q( {; H4 a, T' D8 f, N" k5 }
- }4 r# t% L& X: Q
- }8 |4 g% K, i7 Z0 }$ @. Z
- void loop() {
- |+ z7 V% z( K$ C" B9 V - server.handleClient();9 N% S! W* j+ G# v
- delay(1);
! y! B0 d5 o/ H9 k; K- ` - }
4 d$ Q1 P. d- [! @6 F! ]8 M, k - String doGet(String url){
9 J3 S+ M/ G9 `4 p5 w7 \ - if ((WiFiMulti.run() == WL_CONNECTED)) {9 C* ?5 Y) x* P* R" F
- HTTPClient http;
, M0 q) W6 }* g! |, D( a7 a9 L - Serial.println("[HTTP] begin...");7 z' F, Q4 @" S
- if (url.startsWith("https")) {
2 e5 k( w8 K( W- m - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
: h( ]3 b. e" e( f - } else {" g" B$ R3 o; Q7 ^4 {+ `1 l ~
- http.begin(url);- b1 C6 Q3 C n4 v2 J
- }
8 N t: q2 ?. \1 F+ [' H - Serial.println("[HTTP] GET...");
3 _2 z6 R# }' }$ ~ ?" H" x - int httpCode = http.GET();
5 {% { P, A+ m8 U3 K - if (httpCode > 0) {5 P. Y' Y N4 ?5 l# e) Z' y$ j
- Serial.printf("[HTTP] code: %d\n", httpCode);
5 \! c5 V; v3 I$ p - if (httpCode == HTTP_CODE_OK) {& Y4 S8 p$ j! w t) h8 X$ h1 i- G
- String payload = http.getString();
5 h2 e! B8 H8 u! D8 g; e - Serial.println(payload);1 y0 I+ Y0 a& k
- Serial.print("\r\n");
! A. |3 G$ L# Y% b - return payload;
- K; I* k. w9 a7 u* z8 Z: y - }/ H4 g8 w) X7 L+ Z9 a" ?
- } else {8 m I' Z4 d7 K: D# R
- Serial.printf("[HTTP] GET... failed, error: %s\n",' U( O& n3 I7 Z7 R
- http.errorToString(httpCode).c_str());
& u2 g3 E5 I' p q! ~+ I$ l1 f - }2 D7 \1 R1 y7 m
- http.end();* Q3 A9 n0 x2 n/ g: n5 J. c
- return "";
1 J/ D, M; ?" E2 T _ - }, F. K! d. ?$ ]8 e& _5 C8 j' {
- }
Y3 e+ _: P8 m5 v- Z - void mainAction() {; T4 V7 ^" z! C" |0 H. s0 j
- // 发送请求
l3 t7 O7 c4 g; k - doGet("http://google.cn");; z( _2 S& o( Y. X
- }
8 a9 W3 U% Z( C. w( K, B$ {
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