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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)" t0 w. e, L2 S7 }4 t+ N
- #include <ESP8266HTTPClient.h>: [- Z+ \0 a* D1 o D6 d
- #include <ESP8266WiFi.h>
2 P; ~9 x# C! h4 m9 D0 }0 D) q2 i6 N8 _/ d - #include <ESP8266WiFiMulti.h>
+ k9 V4 j0 u0 q% z - #include <ESP8266WebServer.h>
- o/ r% t8 J% |' n H7 h - #include <arduino.h>/ O7 J2 `# x$ T1 i$ n% w' G
- ESP8266WiFiMulti WiFiMulti;
, d) k4 Y( ]% f2 Z% S, H0 d. ~ - ESP8266WebServer server(80);1 S: _# W+ O# n5 b8 Y7 D
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
% h5 |4 h$ o4 f' u3 w4 @5 Y; M - ADC_MODE(ADC_VCC);
3 c# O; }. W2 W& L& q, ^ - void setup() {
$ |0 S S0 A. u# T$ U: X6 z - Serial.begin(115200);
4 G6 }- h% c0 g4 m. _ - Serial.print("\r\n\n");
5 O+ T; N( j M$ o" r, E- ^ - pinMode(2,OUTPUT);4 f0 v6 O, a' V
- // WIFI$ ]1 B% P4 O9 V3 ~! u5 _" d" f: H# V
- WiFi.mode(WIFI_STA);% e, M' L- m: X" ^) }
- WiFi.hostname("Sparkle");% p: I1 H$ C/ e( d1 d# n
- WiFiMulti.addAP("wifi ssid", "wifi password");
' o; S6 L J- ~- x9 c - int tryNum = 15;/ c( P. u& v9 v5 T8 p) O
- Serial.print("Connect WiFi");
3 e, J2 T2 H+ [1 n V$ Y# _3 z2 W - while (WiFiMulti.run() != WL_CONNECTED) {0 f) g( {3 D9 S8 }- a' Q# e
- digitalWrite(2,0);
7 v8 t/ A! u* s - delay(200);
9 |- S7 l+ w( p8 p - digitalWrite(2,1);
# m% ^, h# C$ W$ A" f1 J: ] F9 t7 N - delay(300);
+ f- ^. y; Z: |+ n6 O. h - Serial.print(".");
$ g0 E' `6 S) e9 j1 R - tryNum--;
+ f* Q1 m* s" [ - if (tryNum == 0) {, N! o$ V* n7 q& P
- // 1min
8 Q/ n" ^4 s7 |! b - // ESP.deepSleep(60e6);
* z1 p. e. t! }3 O - ESP.deepSleep(0);
3 y4 m9 q5 F' Y* Q - }& ^# V% [! L- P
- }
$ z/ N: `6 W- w6 N - Serial.print("\r\n");) e1 l* h; w9 N! r: u2 i4 P$ p+ F( I
- digitalWrite(2,1);1 K2 S& u" k- a9 ~3 L5 f
- Serial.print("IP address : ");
, P8 O: B, b8 E4 L - Serial.println(WiFi.localIP());$ z6 u* E) O' f4 j1 O- X
- server.on("/", HTTP_GET, [](){2 l3 \* \2 H! i
- server.sendHeader("Connection", "close");! u+ H6 W9 d. P- B
- server.send(200, "text/html", serverIndex);
4 o4 A1 E7 e e) N: a0 `! ]+ f - });
* b4 a5 x! A, Y% b& J6 s - server.on("/update", HTTP_POST, [](){
% [* t" E& K5 _9 Q8 Z - server.sendHeader("Connection", "close");" q w c/ ^/ @5 i
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");4 a5 w! p2 W. y e [! x$ ]
- ESP.restart();' N: P% w9 y$ g6 @
- },[](){
; `1 ]8 ~/ a( `; T - HTTPUpload& upload = server.upload();
0 |6 Q3 P2 g! c7 H - if(upload.status == UPLOAD_FILE_START){
; o1 G+ K$ ~9 _ - Serial.setDebugOutput(true);
+ E h% s0 z: x& A& z& f) Y" b - Serial.printf("Update: %s\n", upload.filename.c_str());
+ P, ]; ?8 X) f - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
2 y2 Z0 O, Q; R7 l G. r - if(!Update.begin(maxSketchSpace)){: @5 Q0 ]- T+ C9 r1 q) N
- Update.printError(Serial);
* d. \ V2 g- C - }
' o7 i7 j* @( ^" t) O% d - } else if(upload.status == UPLOAD_FILE_WRITE){# ]) V6 m( z3 H w
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){4 Q3 K1 o& r) k
- Update.printError(Serial);! h- v/ s0 Y7 O2 t
- }+ F9 `8 r- G J: v! ]
- } else if(upload.status == UPLOAD_FILE_END){" N' ^+ [# Z9 H4 V
- if(Update.end(true)){
, ?' h5 E: P \% r& O2 Z - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
6 l/ D0 X4 {% J - } else {# [9 z" D$ T9 C9 s2 U! P. E# {
- Update.printError(Serial);% |: r/ m" }' E0 r- L% g
- }
7 o Q) l& p r - Serial.setDebugOutput(false); ]! d ?* n' @2 \
- }
8 o% b3 ` H" D& V - yield();
# u* v: o, y/ K" t/ Z* Q: t& Q - });" |1 N# X1 S: V- J! J
- ( Z5 x3 k) }6 |5 j( K# L3 J7 `
- digitalWrite(2,0);
# c1 N8 v }6 V1 C" e. H7 S& u, N - mainAction();
8 Y7 i. X8 o# L2 c7 ~ - if (digitalRead(0)){
5 @2 U2 w4 W0 Q6 G5 ~ - ESP.deepSleep(0);+ y1 ~& F: q s) B) ^, w
- } else {
# m" |1 w+ R! G4 ?) E - server.begin();
$ @# u9 o3 v6 E/ u9 |) d! p+ ~ - }! S: {% p4 c+ Z, s0 X R- j
- }
9 d# c7 e) r# I7 `" U$ | - void loop() {
& x1 r) y6 X3 a( l - server.handleClient();
8 B) U" @, S3 _ - delay(1);* f D" a' e. }& ?0 v( T* v( `
- }, {% ?! M) E1 _$ H+ Q
- String doGet(String url){
% K0 A" e) f2 ~% n9 P% i* F; x - if ((WiFiMulti.run() == WL_CONNECTED)) {8 d2 B. `9 j3 U; Y$ B
- HTTPClient http;
- L" ?. u3 a( c2 F% K - Serial.println("[HTTP] begin...");" X# i# j$ n; n
- if (url.startsWith("https")) {+ f; ~& j7 k# O: Q
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
7 Q' \& V# D4 h( n# L, u3 L5 c - } else {
, N% z4 t) G' ?+ X q - http.begin(url);
4 v: [, k& k5 f( \/ ^4 v( t - }
& r* a! L5 [( g) e& {2 P - Serial.println("[HTTP] GET..."); Z- o1 i7 k# |" ]7 w
- int httpCode = http.GET();/ _ P* q2 ]% L4 _/ s( F1 F# X! D" e
- if (httpCode > 0) {
4 U' s6 z; h/ @ i2 O% k - Serial.printf("[HTTP] code: %d\n", httpCode);
4 q2 F/ ^% G+ I( o, T - if (httpCode == HTTP_CODE_OK) {
! B# u% e0 q, c+ w F. g9 V1 v - String payload = http.getString();
; i1 p1 d3 L0 k+ i+ x - Serial.println(payload);
2 S. r" a& I8 B" g1 P V+ B5 S3 j - Serial.print("\r\n");, W' b, T; G0 n: @/ f
- return payload;
3 ?0 p! X$ y4 J+ H1 J) o$ E - }
. X' t2 C5 U) z' z2 b; P& E - } else {
" B. ^2 l, g5 f; N' t7 V4 c - Serial.printf("[HTTP] GET... failed, error: %s\n",
8 t" c* }/ [, M3 k7 \' W - http.errorToString(httpCode).c_str());
4 P/ J% y( o2 j+ s2 o - }% |( l9 _5 Q' U$ ] D4 X( [( ?
- http.end();& I" f; \/ X# [( _
- return "";6 L3 V3 N/ M, d; L
- }. x* H1 q t F" h$ G. B* j/ N
- }8 y3 V7 _) R2 n( t; _1 g
- void mainAction() {2 }6 Z6 e0 n$ F' w |8 h
- // 发送请求8 i5 I5 e# l' A! u% ^
- doGet("http://google.cn");/ `0 \. D L+ V+ h0 F
- }
4 e2 u! A# @( m, h
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