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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)
7 K: ^( |9 E- `- ?/ k) e6 T- #include <ESP8266HTTPClient.h> }- o$ O' m# i& a/ K( U
- #include <ESP8266WiFi.h>
% z" L; `" L8 V* p - #include <ESP8266WiFiMulti.h>
: d% m- ?: `8 g# R, g. t5 Q - #include <ESP8266WebServer.h>2 B) c4 A' S! q* n4 S5 N1 i
- #include <arduino.h>
' P0 ^- ?$ T% y! N# E1 f - ESP8266WiFiMulti WiFiMulti;
; l5 A' w9 A1 @( N: f+ i# g+ M - ESP8266WebServer server(80);
+ Q& [: H+ b; K7 p6 b- Q% j. u - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";3 C" _* }7 I2 o( G! P
- ADC_MODE(ADC_VCC);& U1 s1 X# \' T* P3 X" i0 N
- void setup() {
/ f% t2 h/ t% u - Serial.begin(115200);' y, S' w) n. j
- Serial.print("\r\n\n");. K: }" H5 N3 H f4 b' B- j$ n
- pinMode(2,OUTPUT);& N4 T* t3 x$ l' f' x4 i9 r' _
- // WIFI
' V: B' J% f2 K" @6 W - WiFi.mode(WIFI_STA);
0 H. C, ?8 g. G# }% a; S! H. } - WiFi.hostname("Sparkle");
3 X( i6 u8 T1 N, ? l - WiFiMulti.addAP("wifi ssid", "wifi password");
0 J6 d/ ~: K& i: N1 D - int tryNum = 15;
. \% Q# O) o% E9 l - Serial.print("Connect WiFi");
4 z+ F" O! z. m' M! K% M% P7 v3 K - while (WiFiMulti.run() != WL_CONNECTED) {
1 H) r7 i0 v: E, y - digitalWrite(2,0);
' {$ I: e5 t$ O0 F% i9 c0 x! e - delay(200);
# _+ R1 N1 ^! S0 z1 g$ h - digitalWrite(2,1);* ]9 O0 l. P0 I- K+ j
- delay(300);3 U- ^7 T) p% X4 ?% C
- Serial.print(".");
) ?# h5 X& X6 @9 r, q+ H - tryNum--;. @& e# k' W6 S7 H1 K+ Y6 U
- if (tryNum == 0) {5 x0 J$ O) R$ B" {. m+ k& V |
- // 1min
. \3 z- l: M% B4 F - // ESP.deepSleep(60e6);
" J5 e& U, l r. w( Z. z' E8 m - ESP.deepSleep(0);
! r: ^) F2 A9 r% a% |6 N- _ - }
8 F, I& o* I5 U+ u+ ~& n$ w8 |7 _ - }
+ k }, e/ I/ G. j3 a# m7 I, Q% H8 m) o - Serial.print("\r\n");
6 U" J7 H+ |, E" m - digitalWrite(2,1);
: K; m8 e8 [5 Z9 V# S1 C - Serial.print("IP address : ");( F3 i. B( x7 r0 w$ `
- Serial.println(WiFi.localIP());
; { _0 m5 D1 |" N: z3 C, { - server.on("/", HTTP_GET, [](){
+ y( b% j) g6 k, v, Q8 Q% l - server.sendHeader("Connection", "close");$ H- ?+ P, u$ z6 r/ S( j
- server.send(200, "text/html", serverIndex);; a7 g U! J* K- `. D, ]
- });' ?2 M+ ]6 ^4 m, m# x9 m
- server.on("/update", HTTP_POST, [](){
R- U6 O& q; ^: b T0 c, e - server.sendHeader("Connection", "close");# a9 h1 i3 ]+ H4 v" V
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
{0 J2 q7 d q( n7 { - ESP.restart();
/ \, q: {* I$ ~& [5 x) o' E - },[](){/ k& D8 g8 E/ Z% }3 O
- HTTPUpload& upload = server.upload();; M& p+ o3 A3 e, a) b
- if(upload.status == UPLOAD_FILE_START){
% H" O# l, S( F; Z! k - Serial.setDebugOutput(true);
: n2 `. |( A) V - Serial.printf("Update: %s\n", upload.filename.c_str());
5 M' C1 B, K+ ^* W* N0 { - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;$ X+ L! z' w6 W+ x9 a( |
- if(!Update.begin(maxSketchSpace)){
; y/ R5 }8 a- [, S6 ^. M, i7 W - Update.printError(Serial);
% @# P( F" F& C/ Z# W5 y - }
+ F$ h. @& d0 W8 w8 o* q a - } else if(upload.status == UPLOAD_FILE_WRITE){% M% F6 N) L4 m3 C8 }- C
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
: O* J1 V% M2 O: j - Update.printError(Serial);
& j- J' s; u7 h* O! R% r - }
; ^4 i! i3 r% k; O. { - } else if(upload.status == UPLOAD_FILE_END){
0 k9 F s, z0 q3 X0 ^ - if(Update.end(true)){
3 P9 [% w; Y0 o) v - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
; s2 W: ~* c" l( q1 D. C - } else {* G: R' ^- E6 ~6 y1 F$ h2 O4 U& ?( ]( n
- Update.printError(Serial);% I% M- x+ ?, F& F8 d
- }
4 h* W& T0 K, l3 R3 t' H - Serial.setDebugOutput(false);( T' U* T x0 \
- }+ g% I. k$ g9 ]0 U+ H# e; {
- yield();9 d% z [% Y- U) s V
- });2 }4 B* ~5 S+ [! ?3 x
- : G) C1 D( I; k* I! `2 |# d& b
- digitalWrite(2,0);5 t( |" D& S" _+ s* L8 X. z
- mainAction();
4 ]/ ]' Z- O" S* { - if (digitalRead(0)){( P* p. H1 J' D9 }/ D- o# k
- ESP.deepSleep(0);
4 A S7 I! d, |6 l - } else {% ? N' O- t7 c8 i9 N9 W
- server.begin();& r/ l0 K& Z5 S9 Y6 {9 M+ G
- }! `: j' Z1 ~; G1 U8 U( A+ w) i
- }
, A/ a8 |$ @. [; n& L) @& Q - void loop() {
% O& x" b0 j$ N* Y( Q - server.handleClient();
. e# V! O1 |, y6 D; z - delay(1);) }# Y F; V9 v
- }! \2 u. ?( e$ H" F, c7 M; h2 d6 E3 N
- String doGet(String url){
B' i, ]$ }. {8 {4 t* \% r' ] - if ((WiFiMulti.run() == WL_CONNECTED)) {& V6 M/ y b/ L4 k9 C) }
- HTTPClient http;
! H( q5 [( `! v- x1 r) b- d - Serial.println("[HTTP] begin...");
! d t6 ~. U4 I2 L - if (url.startsWith("https")) {; W1 y& y2 I% b m* I+ ?: x
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");4 B+ V9 k ?8 O- G1 _! X! a
- } else {* ~8 T/ t& \6 Q" Z+ V. I
- http.begin(url);/ ~2 [* t* \9 x' L0 ]' s
- }8 a0 i+ F( E* p
- Serial.println("[HTTP] GET...");
: I3 T- E, W9 u/ l) [# a9 p - int httpCode = http.GET();- U# D% ?3 `8 A* x
- if (httpCode > 0) {# @8 x5 k: W; ]
- Serial.printf("[HTTP] code: %d\n", httpCode);
# W" w3 \% R0 v, O# i) c. j- E - if (httpCode == HTTP_CODE_OK) {
- m9 h( }" m! ^. w2 E - String payload = http.getString();, \- d `6 @/ x) i$ ` q J
- Serial.println(payload);& v6 k1 }( j' Y9 R- R' a' A
- Serial.print("\r\n");$ `6 U& q- L# H' x* X
- return payload;) i/ L. \* Z, `. i; h9 Z0 A2 c) M
- }
% J' D8 G5 o+ d2 q) E - } else {" x/ _7 y- q9 u- A" D# a4 c8 l6 N% N
- Serial.printf("[HTTP] GET... failed, error: %s\n",
; r* H) B& k1 p - http.errorToString(httpCode).c_str());
; v w% S: h4 F1 Z# _( J T - }; n9 m# ~+ b8 o7 `
- http.end();
4 v! d- C8 @' m, b, L - return "";
/ L1 k9 j5 r5 c4 F1 L; n7 t - }
5 N* l7 W. v7 H% g& z - }. `& O) e8 J9 {# F( T
- void mainAction() {
; Y8 ~# F1 ^' L: c - // 发送请求
0 n, ?) G% J' ~ X: S6 o4 R5 _ - doGet("http://google.cn");
( o' W: u$ z! z - }
$ w# P) y- s2 H# j
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