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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)
: S/ i6 x+ Q9 S/ T, ~5 O- #include <ESP8266HTTPClient.h>
. Z2 _# U/ B$ m6 B2 V - #include <ESP8266WiFi.h>( g7 m b% @+ e+ M9 m1 @
- #include <ESP8266WiFiMulti.h>
" D. ^0 L1 t# j0 [ - #include <ESP8266WebServer.h>* @" m7 h8 c# N
- #include <arduino.h>* h4 U* r6 g, j% A7 X3 E
- ESP8266WiFiMulti WiFiMulti;
, K5 Q' g8 B# G0 Q, x% |. M. D% { - ESP8266WebServer server(80);+ d' o6 Z" @# [9 I
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
* D: R% q4 q3 [, k - ADC_MODE(ADC_VCC);# K/ Z4 C, Y& W( e0 {) O7 \- G
- void setup() {
- ~0 V# `# B, D, Y z. g8 W: n - Serial.begin(115200);
. M3 U( J7 x- ~1 T" a - Serial.print("\r\n\n");
) }1 l- d# s* u W1 k - pinMode(2,OUTPUT);7 q3 s5 R' a. K: ]) U7 f4 L
- // WIFI7 y& g0 L: g* v% T- f3 V/ N/ r
- WiFi.mode(WIFI_STA);
, |+ `$ ~3 @3 V" H J - WiFi.hostname("Sparkle");
% \ K! }; G6 V - WiFiMulti.addAP("wifi ssid", "wifi password");) |, M. P: a2 M, B1 L
- int tryNum = 15;
3 P4 g) d7 b+ ^1 u - Serial.print("Connect WiFi");
8 n7 u$ d. n: S1 c: B - while (WiFiMulti.run() != WL_CONNECTED) {2 i. a: q+ K! s' I& y# v" ]
- digitalWrite(2,0);
5 X( ]& c* S& J - delay(200);
$ f7 D: b# E- p - digitalWrite(2,1);
" e1 G n# `: ~) \ - delay(300);
) U2 n8 G1 D2 C3 d0 {2 | - Serial.print(".");( A8 T- B: c" x" C+ b F+ p
- tryNum--;+ p) @# G! x% y% c, n# J3 T
- if (tryNum == 0) {
$ b7 B) a7 g9 j: l3 p* o - // 1min( O0 r1 ? Z; v/ y! j% \/ f
- // ESP.deepSleep(60e6);* S$ A+ X5 R% m+ L0 h. _
- ESP.deepSleep(0);
2 r: ^3 T( S8 C) n0 J5 ^+ T - }: [; }6 I" O# s4 [5 o) ^9 p
- }
9 u' u6 Y, G( L8 d! x/ z- v0 O - Serial.print("\r\n");
3 F: p) }1 V0 x3 n: z2 ^6 g2 Y - digitalWrite(2,1);" N F2 u/ i( u# v! X0 Z; l
- Serial.print("IP address : ");% m/ v# x2 l. p+ ?, U* ]2 h
- Serial.println(WiFi.localIP());: [) r ^) x9 B7 B4 c
- server.on("/", HTTP_GET, [](){% O+ x- Q+ ~, o, B" y
- server.sendHeader("Connection", "close");/ T0 v' x$ \2 t* T
- server.send(200, "text/html", serverIndex);7 T" e. X( ^2 r8 J
- });
4 C0 Y; \& X: V9 X( R+ d0 R - server.on("/update", HTTP_POST, [](){$ {6 N9 Y3 }' \- R
- server.sendHeader("Connection", "close");
" C4 @. }* E D9 B - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK"); q. l8 f6 s4 F9 b$ r7 N
- ESP.restart();
7 E4 p* h: a( Y - },[](){3 q$ F+ [6 ]$ Y H. F' v9 ~
- HTTPUpload& upload = server.upload();' G4 U. p9 v% Z. P' W1 ?
- if(upload.status == UPLOAD_FILE_START){
# u" u: }% ^$ {2 @. N# X - Serial.setDebugOutput(true);1 J/ q( i6 `1 G# E6 ^& C$ j7 R
- Serial.printf("Update: %s\n", upload.filename.c_str());
" T. \# S9 H W! ?' c - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;) | f; Z9 A; i4 G- k. k$ _1 d
- if(!Update.begin(maxSketchSpace)){3 y7 J: V9 A$ U0 Z; m, I
- Update.printError(Serial);
1 U8 n# G8 P. o' k - }
7 H8 i1 n1 c/ o- a) X/ K/ ? - } else if(upload.status == UPLOAD_FILE_WRITE){: y, ^! D" \9 H& L
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){8 Z4 R. ]3 b7 L% @
- Update.printError(Serial);
/ U W/ [2 |, w, O v2 p - }
8 v$ U7 S8 h% C# v" s8 Y# M - } else if(upload.status == UPLOAD_FILE_END){( Y8 `9 F0 a$ q y! L/ D$ l- ]
- if(Update.end(true)){
9 P6 w0 L+ a' w9 l2 u8 y6 [ - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
) U% N+ I K2 P+ j5 R - } else {
! C3 ^5 t* e; G' L0 w3 s6 B6 t - Update.printError(Serial);
% {" H- d7 s+ r6 V5 M5 N* ] - }9 L( b2 O+ q( Z6 X" Y* }
- Serial.setDebugOutput(false);2 F* D6 c; L( L5 U
- }: G# H2 A- f, N* K# p
- yield();
/ v# i5 m Y5 P) l$ H1 U - });# J5 g- Q- y9 k' s& h& p v: i0 O9 n
- - u' X7 b& [' r' |3 g: b
- digitalWrite(2,0);; ?/ s" O# i9 m. j" M) L# C
- mainAction();; F: f- [" g: J6 V. r% E) j2 V% H
- if (digitalRead(0)){% z3 i6 f8 ]) J
- ESP.deepSleep(0);
4 g, F* ]# C% c S1 |, @ - } else {: D* i. A' Z, E* u* K4 O
- server.begin();$ S, d. A3 Y! e# t
- }
- N7 X; [: h4 K4 ~9 R - }4 G/ v7 r3 }" W' o: g/ ]
- void loop() {# R! G! n$ f# |9 S2 r& z
- server.handleClient();0 s; `5 ^, Z; u1 ^- I
- delay(1);8 J7 o+ F8 x' ?- x5 b# y
- }
! y. K1 O; Q' M& c& v" Q! N/ J - String doGet(String url){8 ?; Q: z3 H1 C8 Q" Z9 e
- if ((WiFiMulti.run() == WL_CONNECTED)) {
8 U( _+ u, ?" Y' ~ - HTTPClient http;* |, Q: [8 T1 ], O0 K5 y: V f* k% [' y
- Serial.println("[HTTP] begin...");$ [$ ~8 y9 u1 k0 Z- e" h& d6 b0 F7 n/ _
- if (url.startsWith("https")) {) Z( C' O) H& B& M I* ^4 |5 s5 L2 |
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
3 z! j! l e) n% `" B2 d - } else {. g: D5 T9 ~, B& i
- http.begin(url);1 }& z/ N7 M( F. b; P
- }
% [: q* }) P1 z7 V: p - Serial.println("[HTTP] GET...");
/ h q% M5 B- r/ R& r. ^1 n - int httpCode = http.GET();
( v" [" b [- L$ E# H - if (httpCode > 0) {& T4 p& S; s1 c) f6 _! o; x& T# l
- Serial.printf("[HTTP] code: %d\n", httpCode);" U9 J0 @; t8 [* Z: D
- if (httpCode == HTTP_CODE_OK) {
9 ?# @8 W( u5 _1 u - String payload = http.getString();
; A6 r5 [0 K0 S+ M! N7 p& V - Serial.println(payload);
B* o0 x7 Z& ^+ V) E: |) i5 n6 v - Serial.print("\r\n");
0 c# A6 t$ n- _ - return payload;
. h. `5 a+ y; H - }) v5 O6 U% ^1 k. G0 g: T* L% U
- } else {
5 N, ]0 M/ w* n' Y3 H/ `" O - Serial.printf("[HTTP] GET... failed, error: %s\n",( C1 `/ Y* ~" }* v! Y" u
- http.errorToString(httpCode).c_str());! Y3 e7 P5 }1 a# j5 f) N3 D
- }# S" o8 c, E8 p4 g, @8 Q
- http.end();9 U" d/ L J1 {9 o' y$ _5 E
- return "";+ w9 _; O' C) e2 c# y; Y, k+ ]
- } j6 |3 ^* Z& N! f. U
- }
( i1 O/ E( D u% w0 a) u7 o - void mainAction() {. f( [( E& }) j& F1 k5 N( g" F
- // 发送请求
+ }& ?& m1 j0 G - doGet("http://google.cn");
3 i4 u6 t: B! P - }
* j4 r r$ d% O# c$ r$ T& C
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