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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)
6 o& R3 `% t! R+ Z( r. }- #include <ESP8266HTTPClient.h>
1 C+ `$ R0 t/ g - #include <ESP8266WiFi.h>
- q- I# b7 @" v# O - #include <ESP8266WiFiMulti.h>
* k2 u) W7 [' o) c x0 s - #include <ESP8266WebServer.h>4 G" {- I- Z8 l) U' f
- #include <arduino.h>
, T: [7 C$ Y5 P1 j7 B - ESP8266WiFiMulti WiFiMulti;2 r# V5 K/ O' {# _* C
- ESP8266WebServer server(80);
# T' E% z1 f/ W" c% d1 A - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";! D4 f' o1 @" C8 X# @9 [! z
- ADC_MODE(ADC_VCC);3 k2 j4 B5 M( F$ b; W; l2 D, m2 L; m
- void setup() {/ n: ]- S) J* J+ y9 r
- Serial.begin(115200);, t& @$ \) `! n \; n
- Serial.print("\r\n\n");7 Y( ^+ x' e) j3 {% I. L% s' ~4 M
- pinMode(2,OUTPUT);
, Y" z+ u" V F. R3 X - // WIFI$ x0 [: l& G/ }: e8 k2 ~' g
- WiFi.mode(WIFI_STA);
1 ]0 b9 Y- q5 S/ |) `& Z - WiFi.hostname("Sparkle");: Y$ `* F, J/ b; S
- WiFiMulti.addAP("wifi ssid", "wifi password");
6 o7 h5 f+ W! \" [8 `& K/ Z3 V - int tryNum = 15;( L" a% ~6 N7 l* @* B
- Serial.print("Connect WiFi");0 y/ @8 _( _& h! i( l C) r5 d
- while (WiFiMulti.run() != WL_CONNECTED) {
( b% p0 w, Q% |2 M - digitalWrite(2,0);
2 l* L8 ~( H1 G8 I0 t K; n - delay(200);
( W+ R7 \) U! q0 P' D7 n H5 e - digitalWrite(2,1);! d4 F, m1 ^: q, g1 z. j
- delay(300);* w1 Z1 s: u2 s5 K, a
- Serial.print(".");
O% [* \2 ~" p, u: ^: B7 i* m - tryNum--;/ p4 ?/ ]# A- f0 w3 ~. Q
- if (tryNum == 0) {% ]) X. l# u; A& H, i7 h: a
- // 1min6 m8 t0 s7 |8 F6 S2 _
- // ESP.deepSleep(60e6);
# n) f& {/ X7 L9 Y. [6 k5 Q - ESP.deepSleep(0);" j8 E0 ^$ c1 q8 e: }- i
- }* j/ h3 g. W. ]: [& V0 u, s
- }& q7 q! E$ `1 c4 ^
- Serial.print("\r\n");
5 w4 I! W3 h0 s4 D2 z7 G - digitalWrite(2,1);
5 ?7 E6 f2 X; f - Serial.print("IP address : ");: _; t) Z- H( o1 P
- Serial.println(WiFi.localIP());* s! o" ?0 v; V G$ N4 D2 s
- server.on("/", HTTP_GET, [](){" W* M, P& w, N1 P% G
- server.sendHeader("Connection", "close");: q4 L) G$ w/ H+ |5 B& @: Z
- server.send(200, "text/html", serverIndex);
8 w+ r, ]0 j! u) A# @ - });
/ \' r; m1 v* Y i, M - server.on("/update", HTTP_POST, [](){
& @. h+ b$ [3 F; B. U9 C% j - server.sendHeader("Connection", "close");2 \( ~7 W1 z4 _5 S. x5 c
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
, D. O, a8 Y6 x s1 k# ] - ESP.restart();, D0 `9 f O4 D( H2 F
- },[](){
8 B# k- y, n( A3 c3 s) c - HTTPUpload& upload = server.upload();- F$ {' Y1 x; ^, M( U& O6 D0 L
- if(upload.status == UPLOAD_FILE_START){
& I" E* U) ?4 e$ ]; E. x - Serial.setDebugOutput(true);
0 o! p2 t! [/ L% h3 q - Serial.printf("Update: %s\n", upload.filename.c_str());
; L- S: L& Y p; L: P. Z5 w - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;( Z' B z$ p s5 n* b2 p2 i) ? [0 P& n
- if(!Update.begin(maxSketchSpace)){! q2 ^$ r2 d' [6 |, D0 y
- Update.printError(Serial);$ H+ p6 G8 D; {0 }
- }. o) I7 u; C+ l% m/ i
- } else if(upload.status == UPLOAD_FILE_WRITE){
: p# R/ J* O) g - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
! V: P& I+ [8 e9 S0 g* [* r2 }2 B0 Z - Update.printError(Serial);
( c6 r* L! O7 z X/ V - }
" ~/ D/ _- u. }! ]7 e) K# k. g - } else if(upload.status == UPLOAD_FILE_END){
+ y b- @$ K9 j0 h! y" { - if(Update.end(true)){7 T O- N4 r$ x8 F* I1 {2 f* P! y
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);$ o; U" f1 C6 M4 h8 i
- } else {
T! K1 w: p$ G2 U7 K/ E9 y, F- h; c - Update.printError(Serial);
+ U U& a8 D* ` M2 Y0 h+ g8 h - }6 L, j, e$ Q9 I2 @& ~; R' Y4 _/ ~
- Serial.setDebugOutput(false);
3 H3 g0 Z. f+ ^8 N& w; W. j3 D2 Q - }
/ f- ~8 ~ Y7 y4 v, O/ @5 C - yield();3 E1 i; c8 `3 b# M* v
- });1 }! d2 Q3 q' [# A5 K: P
-
$ m% N( m& S6 Z t N; g - digitalWrite(2,0);
$ E( \. Q$ i$ y - mainAction();
8 s6 |7 c$ e4 U6 P4 w6 A/ A/ z - if (digitalRead(0)){
9 C3 Q | g, l5 m - ESP.deepSleep(0);" F5 d6 o; T! p& B( F; U4 M1 M
- } else {
# v4 W) ?) O# r - server.begin();/ w6 g9 w% A- Y
- }
2 x' p, b i# I, E: X: _" q$ I - }
4 A5 c& R+ z1 Z% D9 q- d9 p - void loop() {
, r% _. O, i1 q) Y - server.handleClient();
( {7 f9 N+ F3 ~: I2 _) k& k7 P w - delay(1);
% T5 M2 u5 {1 K! a8 n4 M% D' ~ - }: V& N- y! O* g# u7 u- D3 S
- String doGet(String url){3 c' \2 I4 ?1 g5 U# v* e
- if ((WiFiMulti.run() == WL_CONNECTED)) {$ ~6 u' K: I, K6 P! I
- HTTPClient http;
. x3 ]3 V9 i# L! `" I - Serial.println("[HTTP] begin...");) h1 B0 L) V- {0 }
- if (url.startsWith("https")) {6 m! W( M+ ^1 F: y% N# i' M
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");- u# b& j6 U4 ^6 O9 F
- } else {% S: K2 |7 K5 R# d3 s" `
- http.begin(url);
8 E2 s9 {* P) P9 d/ \0 X - }, A& R8 v6 A1 K3 u0 b2 n2 H, ?
- Serial.println("[HTTP] GET...");
! h& X" @0 V X+ z# u0 u - int httpCode = http.GET();& M2 A/ t& W9 z$ P- f
- if (httpCode > 0) {1 ^8 n1 o9 e0 d
- Serial.printf("[HTTP] code: %d\n", httpCode);; M( ^% ^+ N+ C! x
- if (httpCode == HTTP_CODE_OK) {, P/ U" T- P+ B2 O3 g
- String payload = http.getString();
# X7 K# R7 V% p# \) f( O1 ? - Serial.println(payload);4 Y4 B% e+ d6 E! Q+ z! q
- Serial.print("\r\n");
( v. d) O* m' `' r$ E2 n. y - return payload;
" e: |' K1 [9 \' H - }
1 f2 @8 R! G8 ^7 D% H$ K - } else {1 Y3 r6 y6 v( v
- Serial.printf("[HTTP] GET... failed, error: %s\n",2 |' S6 K7 ]4 ]( ]
- http.errorToString(httpCode).c_str());
( O0 [! E' r$ {( p, e, x: P7 w - }
; B+ `, d9 D0 _3 m - http.end();
i+ ~! y* s5 T9 b0 \ - return "";- Q( r' \: f" ?/ U' _( W7 {
- }
2 b, z1 z' N, C& f7 ? - }. l6 H3 P7 I x& |% B2 z
- void mainAction() {
6 W) h* q7 G4 z4 F8 f2 } - // 发送请求
7 v$ N9 |1 i7 X - doGet("http://google.cn");# Y' Q$ U9 \2 \" R& |* P7 x
- }% X6 F, \. Z5 N6 p* A
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