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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)# P6 P! P$ d. ]. i; N
- #include <ESP8266HTTPClient.h>0 B- N, n% R/ i% ^9 |8 X' p
- #include <ESP8266WiFi.h>
- j6 I6 ^# b6 S% r+ u4 u - #include <ESP8266WiFiMulti.h>% J! A4 s8 R( r+ a% n5 Y1 I
- #include <ESP8266WebServer.h>
' M% {7 F* ^" j" r1 c w - #include <arduino.h>
9 F. V# r3 V3 |( @2 F8 x6 s9 `& S% C - ESP8266WiFiMulti WiFiMulti;
6 h/ @3 h* C1 ~& Z1 | P - ESP8266WebServer server(80); N! u: e) H- W7 H
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
. D9 y' d* o7 d - ADC_MODE(ADC_VCC);
0 S9 G$ W2 ?. L& b7 S - void setup() {6 `) X' ~ h0 P& w+ E
- Serial.begin(115200);
. T/ H* B. d9 z( c* T% E8 d( `' ~- \0 T - Serial.print("\r\n\n");
; w' M; ^ G' d5 v - pinMode(2,OUTPUT);1 j7 J9 V( K2 Q! I! |; c
- // WIFI t8 h& |: M* _. c( e7 I& D
- WiFi.mode(WIFI_STA);
$ p: _; l, _ w! l& d - WiFi.hostname("Sparkle");& k8 L% g2 [3 U( s p
- WiFiMulti.addAP("wifi ssid", "wifi password");) S9 U4 t8 I; d1 \$ p
- int tryNum = 15;
- l6 l/ M3 b9 J/ z/ B% P+ q3 B; ]2 Y - Serial.print("Connect WiFi");
0 g5 n. n" x2 {2 | I7 w- L7 P0 } - while (WiFiMulti.run() != WL_CONNECTED) {2 ?) U' Q1 {5 [0 I( S
- digitalWrite(2,0);
3 F4 ]( y$ o# w, z8 G - delay(200);
( B7 P+ D8 x* h" b2 N0 w2 ]: K; f4 ? - digitalWrite(2,1);
9 d* i3 r3 N4 F7 v/ I1 o - delay(300);& A0 C" U; P: T4 a+ h
- Serial.print(".");
! Y! W, j( o$ E b/ g+ u; b - tryNum--;
% S: ?2 l4 I" u6 U( ]! e - if (tryNum == 0) {
. Q3 `" o1 a( [! K( U* o9 ] - // 1min+ G, l! m/ U& v0 y7 i6 }, @0 i8 P- E
- // ESP.deepSleep(60e6);
& y- c8 n& i# }7 l {$ f - ESP.deepSleep(0);
6 m- `' j9 s* o8 o& \ - }
# d7 s: R o- T* _6 @6 n - }
) }+ H- P/ }+ J2 L& L - Serial.print("\r\n");6 u0 P6 C# ~9 j" n- n
- digitalWrite(2,1);
l: m6 ?0 k+ g$ ], ] - Serial.print("IP address : ");4 P# Y& U; @9 m& R4 Z3 j* b
- Serial.println(WiFi.localIP());
0 j/ R3 _% ?" c& ~0 f6 r1 I! ~ - server.on("/", HTTP_GET, [](){
) m U0 z- Z* F( n( i/ p A5 |7 C - server.sendHeader("Connection", "close");! z; f- l3 \. U% P1 k4 e2 `
- server.send(200, "text/html", serverIndex);1 G9 F% @+ g4 H) p" ~
- });
2 Q5 K' e3 z: ?" G+ Y& {2 J - server.on("/update", HTTP_POST, [](){& _+ K* H( i" S. V" t
- server.sendHeader("Connection", "close");9 O$ a( J! T& D( R- v E
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
9 Z( O/ F6 J9 X8 K2 [ - ESP.restart();
! k) c. [1 l1 k# g1 h - },[](){
4 J3 U( y3 j3 o9 t; k7 V - HTTPUpload& upload = server.upload();
7 I, H/ M0 t0 ?. g# p) c - if(upload.status == UPLOAD_FILE_START){
9 l7 n1 M8 E$ o6 }9 Y8 |. ~ - Serial.setDebugOutput(true);; z+ a7 b' j! z% w
- Serial.printf("Update: %s\n", upload.filename.c_str());+ R1 y6 M# I8 f$ _5 z, r# }) j
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
7 g2 M/ \8 o- m; U/ Y2 z. _ - if(!Update.begin(maxSketchSpace)){8 j) e/ H3 k8 }2 B
- Update.printError(Serial);
( G: D& v6 ?; g* l5 z - }+ i/ R5 B6 ?, o+ u2 `
- } else if(upload.status == UPLOAD_FILE_WRITE){
! {5 y% W/ Q" |* m2 b/ \ - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
1 Q/ W% C% y5 O4 I - Update.printError(Serial);* |% e6 u% R0 y+ } _
- }
5 a H' O& W0 Y0 b - } else if(upload.status == UPLOAD_FILE_END){
& P( N" w) O% g) V - if(Update.end(true)){
* f+ I, E. N% \5 n* n - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);" L/ D9 n [- ^* Y6 g( _: I
- } else {
2 T) X; D* K9 u0 k) B$ q6 v - Update.printError(Serial);
$ }) l0 l$ b4 x5 Z - }
5 E5 M4 X+ e& S, S# ~" m - Serial.setDebugOutput(false);
5 `/ A% j$ B) ? w - }
2 X2 ^$ t5 [" V - yield();/ j1 i: S4 Q3 w" } T. M7 ^, w
- });
* [3 n- |& r$ I - 6 _1 a5 F* S, X: Y: K
- digitalWrite(2,0);# z$ I4 v6 l. o( `! v4 a
- mainAction();; J. H+ { w# {
- if (digitalRead(0)){
5 M N( p8 ]: u/ i a. B+ a - ESP.deepSleep(0);
3 F% o! x- T" T+ @$ b" ?' n1 e4 G$ G - } else {- t9 N' Z1 f" B- |; |+ v4 F
- server.begin();6 r! o; b9 R2 W% Y* O& i
- }' c+ }5 k( t1 l, l8 b ^$ k5 t% d1 R; v
- }/ N* D9 U! y3 {9 G! o8 r
- void loop() {9 p' p; p9 ^: H& s, c0 Q
- server.handleClient();! x$ [! |9 ?( B1 g; }* \/ k
- delay(1);& k }( j! [ j; S( x6 ]9 U
- }
! f" T8 ]# T# O- A - String doGet(String url){2 D0 h6 R' u$ B& V# |% y
- if ((WiFiMulti.run() == WL_CONNECTED)) {) v, x0 W# A+ i) E3 b$ Z' ]
- HTTPClient http;
8 {3 W" v7 @/ k) F ] - Serial.println("[HTTP] begin...");
1 m8 X$ Y: h" N# M8 [7 p" j. G; J' y - if (url.startsWith("https")) {
9 D8 ]7 l7 Q- _* a; E8 v( } - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
4 q, m4 Z2 H- @4 H" `/ n5 G - } else {
2 B/ T# L8 P3 f2 M6 c7 t - http.begin(url);
+ J z# c$ j' q - }4 }; D& k; R! X/ T
- Serial.println("[HTTP] GET...");% A2 L# C7 r, T0 f
- int httpCode = http.GET();
* @3 w5 Y) p" Q3 A* u - if (httpCode > 0) {
?/ T% S, _8 h# f. I+ G; ?) W - Serial.printf("[HTTP] code: %d\n", httpCode);
2 h- ?: t+ ?/ m( b* |; U0 F& O9 U4 C - if (httpCode == HTTP_CODE_OK) {
/ y" Q" }# o2 q ]3 V0 l - String payload = http.getString();* [6 t' h) [# o6 l$ Q8 a
- Serial.println(payload);
! L! w V# }3 P* U - Serial.print("\r\n");& U/ V0 s/ L4 R6 m; {
- return payload;
/ i$ H0 a7 q7 d) Q; B9 u3 J - }3 J" G" X3 f$ l( R* n$ n
- } else {
1 h; w( b% _0 |7 B7 D U+ f - Serial.printf("[HTTP] GET... failed, error: %s\n",
C+ M1 G, j- p& w - http.errorToString(httpCode).c_str());$ c/ K& \4 [; S, ]2 Q6 a$ ~
- }. a8 e7 V* ^! l! R. N/ X; D- ^7 A
- http.end();+ J3 v% W5 l4 M
- return "";, `0 Q& T; F7 [5 h
- }
8 _& n5 v# P: N4 y - }1 C2 o" M, A3 b! E
- void mainAction() {" T) Z$ V; V( o) s+ L: R9 @$ ^
- // 发送请求
- `" B0 h, M; i3 p$ D& c! p0 d9 c - doGet("http://google.cn");
d; X; P! h5 M; f0 Q+ k - }
% s9 d' T6 J! I; I, j
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