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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$ ?; f X% [3 f
- #include <ESP8266HTTPClient.h>' f* q- s: }0 @% W$ y
- #include <ESP8266WiFi.h>: x: j1 o7 ^% K9 f) {8 F
- #include <ESP8266WiFiMulti.h>
8 j9 s: y9 A* ^# I. u0 P, n9 S$ C# b- v - #include <ESP8266WebServer.h>
! _& Y. S& u6 z4 D3 S - #include <arduino.h>
. d- P9 O) E& f0 o! n - ESP8266WiFiMulti WiFiMulti;" g0 I& _& e8 ~+ q* A4 ]0 \
- ESP8266WebServer server(80);
& [% a- o7 t) B! G8 G - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
, T3 K* }' e: r( h - ADC_MODE(ADC_VCC);0 {0 x) y0 L# k/ N" s/ a
- void setup() {+ [9 y$ O, R9 O
- Serial.begin(115200);
7 b. O" C/ u( f0 k! y - Serial.print("\r\n\n");' ?. O4 r) [" @4 U" R$ X* Y
- pinMode(2,OUTPUT);
# r! w- N5 G* q! u2 E - // WIFI
4 T9 B/ b9 K4 D' w# O9 ]9 f" e - WiFi.mode(WIFI_STA);
" z9 [5 ]- `# p& M* V - WiFi.hostname("Sparkle");
6 ?3 w$ f( {' w; l; ^. `# a: \ - WiFiMulti.addAP("wifi ssid", "wifi password");
7 d+ q# `; U. Y+ N, i( \* y$ O1 N! } } - int tryNum = 15;
* M S/ [" g1 A. ?. b& _ - Serial.print("Connect WiFi");
' J8 y; R* x/ c0 A* ~% @9 C% v( ~4 m - while (WiFiMulti.run() != WL_CONNECTED) {
' K. u I# S$ W: [0 n& u! ~$ l1 i" l - digitalWrite(2,0);3 |, I7 t* ]# g2 `
- delay(200);
* S; f6 U2 E4 f0 K6 X& L8 S - digitalWrite(2,1);
, O( V1 {% i) w. \0 ]: f& A - delay(300);
& F& \0 e+ h! P5 }; W - Serial.print(".");- c% i& f0 E' h; o
- tryNum--;8 C) T; T& L( O$ j8 S5 M: M
- if (tryNum == 0) {
H7 }# }& y& a; E* v! W7 w - // 1min" t9 M9 B! K. R- x
- // ESP.deepSleep(60e6);
$ j" [% p; T9 S6 I* {1 C4 s+ ? - ESP.deepSleep(0);
( e0 O3 G1 ^+ [8 s4 F" I - }. B7 V( p6 o, K8 Q9 ~
- } p" w4 S1 T, e% Y+ H p) ?
- Serial.print("\r\n");
/ S' G* {: |! f2 ]- X3 r+ b - digitalWrite(2,1);
6 T7 U7 l/ D( N" Y - Serial.print("IP address : ");
3 K& a/ x; Y0 L _% Y8 ~: O8 B - Serial.println(WiFi.localIP());( s* s1 V: ^2 ^) w6 s0 s
- server.on("/", HTTP_GET, [](){, c" d0 n1 d! R) p; L: a5 e+ `2 H
- server.sendHeader("Connection", "close");
$ x8 C# u: P F1 r( N8 ^: m. o. u - server.send(200, "text/html", serverIndex);# l+ R: J5 {% O! y& E/ |% E
- });: c9 O: E# j. O) \0 ^
- server.on("/update", HTTP_POST, [](){
9 c' c% X3 Y2 o# ? - server.sendHeader("Connection", "close");& W5 w, P$ C2 r I; \
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
* Q/ g" g, B/ i _8 M' G - ESP.restart();
; ~- ~) C$ G# _5 a' c$ u - },[](){
, f. _) j, T- ^4 }5 a' p/ e - HTTPUpload& upload = server.upload(); T7 W* `, }' e
- if(upload.status == UPLOAD_FILE_START){* `9 X! |' v/ W" E% b: w
- Serial.setDebugOutput(true);
# i/ r+ d- `, b( U* {( L$ V" S" O - Serial.printf("Update: %s\n", upload.filename.c_str());
2 f& n/ {# r r: G% x* W( u - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;4 R1 n, d k/ S- Q) M0 p
- if(!Update.begin(maxSketchSpace)){# ^% t! M3 M2 h5 w% d/ e
- Update.printError(Serial);# b' F9 G' Q) g4 N* a' F9 N$ q
- } a% \* O* [9 Q
- } else if(upload.status == UPLOAD_FILE_WRITE){4 V) E- q4 O5 ^6 ?; U' _$ \. U
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
3 I9 i2 y0 Q P0 a+ v& K ^ - Update.printError(Serial);7 |) _- e4 @0 s2 `
- }6 y7 y) W8 w0 i6 ]
- } else if(upload.status == UPLOAD_FILE_END){
1 X, \# y5 ^! ~. ~ - if(Update.end(true)){
$ S# }1 T! k" C+ E+ N5 _7 i - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);9 s# @( t+ x$ b2 G9 I5 Q$ |
- } else {3 T Q4 [" h: y) l
- Update.printError(Serial);
* m5 C7 m8 ~7 C) x# t' I4 A - }
/ x, f+ D( W1 ~6 ]3 y' T - Serial.setDebugOutput(false);
5 X8 u# X" E, W4 {( O - }! _% I& f( H1 L( _% s( w9 x
- yield();+ G1 T3 x# \; Q) u6 E: i9 J
- });
$ E4 `3 f* k: `1 @) n( m -
/ k( ^+ O7 [6 _% Z4 [" Q: o - digitalWrite(2,0);% x2 X- r7 k# M
- mainAction();% g: @' Y+ m# Z3 y: T1 m
- if (digitalRead(0)){3 a! }7 D7 B; k$ g
- ESP.deepSleep(0);; T8 c, Q( D2 X% O% e# W
- } else {
/ k& [3 ?, R) {) z$ }6 M$ G - server.begin();7 s/ k% l; Z" \. e2 s8 J% M! b
- }$ C1 F0 i" |" Y; |6 V
- }
( z& L5 f& X- \0 | - void loop() {
9 X- F, d$ c( g, t e - server.handleClient();& ^& A; h$ |& M5 j
- delay(1);
: `! k$ |" W* P) n% O7 A - }" T- K7 J/ W2 O- z
- String doGet(String url){; e; i( |; y& O R" l% p. y$ O
- if ((WiFiMulti.run() == WL_CONNECTED)) {) U6 a: I# n {1 ^. `
- HTTPClient http;
5 Q8 m6 K- U" V7 q - Serial.println("[HTTP] begin...");
' _& d; T f5 R - if (url.startsWith("https")) { C# G; V* A. t- F5 J% x, q" A8 @
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
! l% r$ D8 N: F( l, s - } else {" o, ]+ Q: |" o: r
- http.begin(url);- `3 c# U4 g6 f- g% E4 I
- }
1 L8 q6 y# I1 w! m5 f! s+ a - Serial.println("[HTTP] GET...");
" R) Y& s4 x0 y( \ - int httpCode = http.GET();
$ g# C( c$ f+ k6 D# n o - if (httpCode > 0) {
8 O. _( v1 B1 Z5 O% v - Serial.printf("[HTTP] code: %d\n", httpCode);: L! }. b- Z+ d
- if (httpCode == HTTP_CODE_OK) {: X( P ?% C( h2 O8 S
- String payload = http.getString();: p& T! n: ~# p g: R9 U
- Serial.println(payload);
* S) ], A/ F- r- f- e# c3 w - Serial.print("\r\n");2 @6 U' D/ [1 e3 n8 {
- return payload;
% W# K; r$ x* h. `6 v T$ p( e - }
$ S2 v, m9 x, p* T - } else {
; p- y* l" ~" x: C. n9 U" H2 B - Serial.printf("[HTTP] GET... failed, error: %s\n",; k6 O6 E" B6 A+ V! d
- http.errorToString(httpCode).c_str());
! Z( @* G/ h, g' D1 _& P - }
: |$ S) W6 P7 l2 k& [( D- x - http.end();$ G1 b2 ]# I, u9 r/ e3 Q
- return "";
" x* @/ I e' N6 K& k: Q - }% N2 w% i7 ~) I, U
- }3 s) g. |* a @4 X
- void mainAction() {) |% i4 G3 T3 T8 x! [& x4 n+ u
- // 发送请求9 a/ p6 ]5 Z7 q7 s9 v4 _" e" ?2 p( w' g
- doGet("http://google.cn");5 v8 g, O; b8 w7 m1 f m' p
- }# I9 G& r4 m& A' T3 R6 {5 q3 N
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