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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)% r( E: R, I9 N
- #include <ESP8266HTTPClient.h>$ A6 r8 |/ s; m6 t/ j+ e
- #include <ESP8266WiFi.h>2 F& X, {' o8 i( ]5 F' K
- #include <ESP8266WiFiMulti.h>7 k! s4 x8 B$ Z' q( i# S! }
- #include <ESP8266WebServer.h>
. k3 q; T; d6 ]" r' B; J - #include <arduino.h>
% Q, g6 X+ \+ f) i - ESP8266WiFiMulti WiFiMulti;: Z9 E" L1 E3 A: I7 ^
- ESP8266WebServer server(80);
& Q" {. i2 ]" K- G - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
W# a( P4 [0 R - ADC_MODE(ADC_VCC);
& M# i2 n3 B; U/ z4 u4 s. Y, N - void setup() {" l( S+ Q% L: X, A G; B% u
- Serial.begin(115200);2 Z7 Y" Y7 D3 T: K) z. F
- Serial.print("\r\n\n");
, u/ T8 L9 _+ Q" O$ f4 w( ] - pinMode(2,OUTPUT);
8 O$ o6 \2 ^2 K) P0 }+ @2 q - // WIFI7 m) ]6 V' ]: A
- WiFi.mode(WIFI_STA); g: {! ?& ~* s* x4 m$ r
- WiFi.hostname("Sparkle");
" ?# r4 Y" ^" Y- P8 C3 T4 S" t - WiFiMulti.addAP("wifi ssid", "wifi password");& i. x; x1 ~3 o$ _; v
- int tryNum = 15;
. \1 V5 d& s: k- M. M - Serial.print("Connect WiFi");8 I9 ]9 ?8 d3 _4 K) I* H; B: Y; R0 s
- while (WiFiMulti.run() != WL_CONNECTED) {
2 J, `9 _7 ]2 I! O% v# f1 f2 b - digitalWrite(2,0);
% @/ G9 X1 P5 p. \9 a* `* s* T( w - delay(200);% m0 ~% T3 a2 {: p
- digitalWrite(2,1);
) S. ~5 x' T: h5 |) _, C - delay(300);
" _# g% a- t6 ?: T) X$ j$ N - Serial.print(".");
- F* m4 g5 {( { - tryNum--;
; O/ L- ]) n+ E - if (tryNum == 0) {
" `; W$ K1 R1 Q; l2 i - // 1min: b- C1 T0 w8 t
- // ESP.deepSleep(60e6);2 O9 V+ j0 b) B/ g) J! p/ y
- ESP.deepSleep(0);1 T$ I) p$ H6 r! {
- }
4 Z4 }* B4 ]) d& g0 Q2 C* O - }' y5 i% y2 n$ n: M* W
- Serial.print("\r\n");4 Q# {6 N' F9 T6 j
- digitalWrite(2,1);
; @: e$ b5 q" v9 ?- M - Serial.print("IP address : ");% O6 P- X, x( Y- O A A; @) P) u
- Serial.println(WiFi.localIP());
9 q( \3 b; c' [' R1 _8 c - server.on("/", HTTP_GET, [](){( }! g- V7 k D: n' O2 Y
- server.sendHeader("Connection", "close");. H. V S d6 @. k; ]. r
- server.send(200, "text/html", serverIndex);
$ E" N8 K+ y$ B4 \4 L - });- \; i8 ?" w p, s8 ^- v* f1 @/ ]* ?
- server.on("/update", HTTP_POST, [](){ u" n7 N5 D! D7 @+ l9 Q
- server.sendHeader("Connection", "close");
) U4 A* C' Y+ b# l - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");& k& Z9 _4 p2 H; U3 T f9 p) @ j
- ESP.restart();
/ M2 Z% z2 d$ A - },[](){
6 o, Q9 }7 { x5 j - HTTPUpload& upload = server.upload();
1 O- j' D" B! T - if(upload.status == UPLOAD_FILE_START){' }6 S, u9 `/ z8 ?1 l
- Serial.setDebugOutput(true);$ Z+ Q9 l. G$ l
- Serial.printf("Update: %s\n", upload.filename.c_str());
! P2 D/ ^: T8 O/ W" t - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
# s1 @3 C& N9 C, l& b - if(!Update.begin(maxSketchSpace)){0 `6 [$ m; F3 V& s* q# t
- Update.printError(Serial);
) v! i- B& T! h6 d H* | - }8 q, s3 q9 l5 [* x4 k# B
- } else if(upload.status == UPLOAD_FILE_WRITE){
- o4 ~0 ?& L2 {! E( \* w$ q - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
6 {8 E4 X/ N3 B/ l - Update.printError(Serial);
) ]4 l1 U$ a _" z4 j, S) L - }
: E1 M) n* _9 }0 } M" Q - } else if(upload.status == UPLOAD_FILE_END){
( j: _5 L) X6 `0 ?9 b - if(Update.end(true)){
% Q3 G' C' X: L; N/ i - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);' I c, t% i4 Q6 Q
- } else {7 K3 k# v6 j+ o; t0 H8 s
- Update.printError(Serial);/ d; g( H' i9 D( s# D4 J$ `
- }
# t, y. {% W8 Y8 }- c3 _( _ - Serial.setDebugOutput(false);# u1 @. u) F3 x0 `3 y9 m
- }
- ~9 i# s1 A8 W' }) Q - yield();1 \+ a" w: P) ]8 S1 o
- });
1 ]3 T# N: k" ? A$ I" I" U3 E - 7 f6 o1 D6 r9 j4 d. E! I: O
- digitalWrite(2,0);0 e/ P; V0 o# L5 U" o3 g
- mainAction();
6 Y! k* }( K: \- j - if (digitalRead(0)){
% a& j- J# J7 z$ m9 w K - ESP.deepSleep(0);
: H4 o& v, [* h0 t& w5 F+ k - } else {
/ j W. g' W4 v8 ?( C - server.begin();
6 j& K/ J) T1 a7 x. v. c+ L. Z; a - }
' w$ O/ S1 V3 O A$ K6 g - }- `# w2 h' o: w7 x: u- M5 D* c
- void loop() {2 Y6 I" m. p1 f1 Q
- server.handleClient();
2 Y- g/ I" H# l* ?! W+ K - delay(1);$ r3 T3 Q7 b" ^; S) }
- }$ X# k" U6 x& |% a2 L
- String doGet(String url){3 V# ?- G7 r& z* h/ r
- if ((WiFiMulti.run() == WL_CONNECTED)) {, I) \( p5 u, u6 `# G" m) E3 X
- HTTPClient http;
! F$ t+ s2 r2 q6 E3 l - Serial.println("[HTTP] begin...");
- D) Q3 R q# b, j4 H( u0 B' U - if (url.startsWith("https")) {# K$ q$ n ?5 S+ O' Z, z# @
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");5 B: R: _) q4 T+ _9 n* T
- } else {% u# a' k" U$ d5 D: b6 |
- http.begin(url);
( W7 c8 }+ g% Z' R - }
/ S9 N% b9 B U. x* `' S# e - Serial.println("[HTTP] GET...");
6 O8 p; |' [/ e3 q- x- z { - int httpCode = http.GET();
D; L/ P- l$ u" M5 j - if (httpCode > 0) {
/ [- I) |7 M5 o5 C" L& h - Serial.printf("[HTTP] code: %d\n", httpCode);
( Q! I& x, k1 O# W. O' a - if (httpCode == HTTP_CODE_OK) {
$ g4 Q: b/ u" ^$ S7 O1 A - String payload = http.getString();
( T( k3 E B0 ~# o" |6 T - Serial.println(payload);, ~: m7 h' r3 ^" h/ t9 S1 ^
- Serial.print("\r\n");
# d! a# k( _4 ?6 ?7 q0 L - return payload;( Q/ o- v# S& e3 T: V6 P9 e7 |
- }
' {' p$ n0 m! q1 @, V) O - } else {
8 P: N4 m& n8 P5 v2 @; z, r8 `( d - Serial.printf("[HTTP] GET... failed, error: %s\n",
% P) x/ q1 ]2 \ - http.errorToString(httpCode).c_str());
8 k- {6 h: d* z( p6 Z2 N9 c* E - }! _$ F* W7 u: n. `, w
- http.end();: L } D' x: N- K# v& ]
- return "";
5 N7 k+ _- O2 B' D - }
+ w U3 ]( M; ], ^/ U H8 f' z - }; w9 U2 i, F M$ o# v
- void mainAction() {) G' O8 S- \0 p* C) d, ?# k
- // 发送请求
+ i# H: A/ j8 o& {, N - doGet("http://google.cn");* ]$ l0 o4 w3 S( s! B. K. F6 \& A
- }
$ Y" _8 ~& `4 o% F
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