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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)
: z5 r l/ |7 f3 A! V- #include <ESP8266HTTPClient.h>
3 ~) o& Y" V5 u; z5 r - #include <ESP8266WiFi.h>4 `4 P7 e! E' O1 c9 N$ u2 h1 z
- #include <ESP8266WiFiMulti.h>0 f$ g% x! N/ I9 C- ]. Y
- #include <ESP8266WebServer.h>* k$ g2 S6 @* p+ R8 V
- #include <arduino.h>
$ K$ l% ~! }/ C( z5 v1 J# e3 k* J* K - ESP8266WiFiMulti WiFiMulti;/ U" ], l+ T a& F/ z- {
- ESP8266WebServer server(80);
3 @8 W( I: u$ a- n v Q( G M5 ? - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
. I l8 \. G( R- c# f# O - ADC_MODE(ADC_VCC);( y( q" H: U9 e5 Q( R) S
- void setup() {! T' p. n" q0 C* _# N2 g% o, C
- Serial.begin(115200);
! Z. {) C5 i, J: w5 \9 k0 j" O - Serial.print("\r\n\n");: C/ ]9 H5 c; h* I- G
- pinMode(2,OUTPUT);! D/ g0 M( h% P' o5 Y
- // WIFI
& K9 w- p0 ?9 L! j, m/ _ - WiFi.mode(WIFI_STA);
$ M) h& A6 L" j2 }& X3 l8 k - WiFi.hostname("Sparkle");
8 J0 v4 T2 ]3 \) U - WiFiMulti.addAP("wifi ssid", "wifi password");3 U0 Q& `" T, W; ~" d2 t( Y
- int tryNum = 15;
* g! i% |8 d1 H/ k; E0 v - Serial.print("Connect WiFi");
+ H" C, q2 O6 _, b. y- w - while (WiFiMulti.run() != WL_CONNECTED) {% `8 A Z/ T* \! I( l
- digitalWrite(2,0);+ N' x' I. e, ~6 e; @# u8 c
- delay(200);& A% s( d/ |# L$ |7 O" w
- digitalWrite(2,1);
* |# \, \. r8 Q' D' F( l - delay(300);
4 i2 @: {7 e2 a8 ~ - Serial.print(".");
1 J$ U# Q' ^( h - tryNum--;
4 e; i; Z" O. M8 c$ r3 r$ ] - if (tryNum == 0) {3 {6 j1 H# R" C$ ~2 h z! I% d
- // 1min& w1 ^, k* h+ O" O
- // ESP.deepSleep(60e6);
# b; G! _4 \) N- M- D0 X - ESP.deepSleep(0);8 {) Z Z/ X5 x) V6 s
- }
/ f6 W. p0 y3 B9 r f P+ v - }7 E9 ?% K9 ~ c/ k
- Serial.print("\r\n");, c; j: \. D$ x, p$ l
- digitalWrite(2,1);
/ g5 ^: K% e% P, @: q( Y - Serial.print("IP address : ");
9 z* y, n7 D: A, V - Serial.println(WiFi.localIP());1 I. S( K$ ?- N, \, U8 J, @+ ]
- server.on("/", HTTP_GET, [](){' F4 w; [& b* F/ t
- server.sendHeader("Connection", "close");
6 H8 @& _5 b$ i3 K - server.send(200, "text/html", serverIndex);' O# a' L5 o% E5 N
- });
& x ?/ u! `5 x# c - server.on("/update", HTTP_POST, [](){& L/ c( z# Q. W2 l( o
- server.sendHeader("Connection", "close");
) s, H! ~( Q. Y - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
" Q1 r$ e% T7 _ - ESP.restart();6 l/ V8 _1 F1 e2 y. i
- },[](){/ f* E5 A( X0 u [) X0 U
- HTTPUpload& upload = server.upload();' G6 t: b% b/ i* h4 m/ v
- if(upload.status == UPLOAD_FILE_START){
- j7 m6 q: I- H {. v5 `& |+ s - Serial.setDebugOutput(true);
5 P* v( k7 M' L; K7 t9 g - Serial.printf("Update: %s\n", upload.filename.c_str());
/ c8 ~5 x$ o+ `" w - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
! m5 a6 @4 v6 y3 b! u - if(!Update.begin(maxSketchSpace)){0 E: Z, z- z& ]% f, p; a/ F
- Update.printError(Serial);
2 B2 w. u/ ~! ^8 I$ X - }7 x5 G% W1 m- z8 Q; a
- } else if(upload.status == UPLOAD_FILE_WRITE){% b' Q, j3 {: n+ j, d. Y
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){) T, R% \8 e! d) M, Q4 q+ A
- Update.printError(Serial);0 }" t- j; X" v+ ~+ e. g9 x; {2 z+ u% i
- }. Q4 Q0 u8 K0 ~6 T; e& k- [6 L5 ?" I
- } else if(upload.status == UPLOAD_FILE_END){! s) H+ ^7 x! `8 b. {
- if(Update.end(true)){! V* G) S+ S6 [, W) Z
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);3 n% _6 g7 g* R" A
- } else {$ m# Z& v) @$ B' R7 G
- Update.printError(Serial); @9 b& ]! T# u2 I! n
- }
+ [3 k0 R; U8 T) E' C - Serial.setDebugOutput(false);: _9 _6 R: z T# d* ?8 R: t, u
- }
l1 L" G$ E4 J1 N$ n+ ^ - yield();
1 [2 E4 N; a/ {6 C1 W5 G; P+ ~$ } - });% K. Z9 a2 D4 E) |6 u
-
6 g1 R9 |( Y" R* l& y - digitalWrite(2,0);
8 U4 D9 Y) F) K( }6 { - mainAction();& w( b( }) a4 C0 A* j. T- \; O+ [3 @
- if (digitalRead(0)){/ l. j E E! _( M% b
- ESP.deepSleep(0);, O3 i! b/ P& u; c- i
- } else {) V) g9 I# Z) U( K
- server.begin();8 K7 n4 X( [; M* _' J9 R/ T
- }
6 S) j7 O0 ]% I# \ - }
# m7 a- U- R+ I9 Q: D6 {0 V. Z - void loop() {
) C4 H$ y$ F1 D2 [6 G - server.handleClient();
) V9 Z2 x9 x0 u/ R* t4 L, q4 ~. n - delay(1);
# g) U2 y/ g( w9 Y6 l8 L: a' s1 x - }
0 y6 X2 ~! q# A+ [4 C - String doGet(String url){, d( g, u3 Y6 J; ~
- if ((WiFiMulti.run() == WL_CONNECTED)) {
! b' y' V4 S+ Z0 k - HTTPClient http; P" s2 P: {, G' s# @
- Serial.println("[HTTP] begin...");4 n( h% x: s6 e# k1 l
- if (url.startsWith("https")) {
7 v* y8 c8 a9 q" E - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");4 ]5 [- P1 D# G. p6 J
- } else {$ Q4 E# h) J% d6 S& O
- http.begin(url);
& w0 _; L6 g. H; U" y) u8 R7 N - }" k( V/ n7 H6 _" G# f) o8 v% l
- Serial.println("[HTTP] GET...");
& q! F, P$ I. W+ k* Z6 g' w( h% G - int httpCode = http.GET();
9 F0 q6 M) j0 ?8 Q - if (httpCode > 0) {
0 a2 e# d/ b. r( f+ s# e - Serial.printf("[HTTP] code: %d\n", httpCode);
1 C# i: d2 c- R, { - if (httpCode == HTTP_CODE_OK) {7 R+ a, ?! V8 I
- String payload = http.getString();
) u# N# D7 c: L - Serial.println(payload);+ [4 [* j- V5 f8 L
- Serial.print("\r\n");$ ]! Z1 T6 ]" j1 v! p
- return payload;
0 X, f v, W, [5 @( E4 q1 C! W- A8 y# ?' i - }
! A6 I% y' k9 K- K - } else {
, x% t7 h- s+ x: Y5 G- P - Serial.printf("[HTTP] GET... failed, error: %s\n",
. l5 ^% S9 H: O* N! ]1 Y3 Q8 i - http.errorToString(httpCode).c_str());4 f% C7 H+ J3 T5 t
- }
E. w$ {# i1 t- K0 A - http.end();
0 N( Y( e2 i m! H - return "";, T5 r" B& d" _4 q- e
- }
& N0 v9 P6 I& u+ v$ f. m - }6 f, x. X4 d/ u6 B- @
- void mainAction() {
% n3 j# W; j" f: u6 V5 m - // 发送请求
- I8 r( X! s% \) l" s: F: ~ - doGet("http://google.cn");2 ?! O$ O( [8 A5 u
- }( |. \0 u+ p) t6 N( T
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