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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)
* f# s* ^1 m6 {6 [( Q- #include <ESP8266HTTPClient.h>
' Z2 ]! n, J) a - #include <ESP8266WiFi.h>+ z/ o! p/ z) J. R/ b/ X
- #include <ESP8266WiFiMulti.h>3 ^3 m$ X1 I, d; B! g0 }
- #include <ESP8266WebServer.h>
% W5 `; b1 B9 |) E/ j. S- X - #include <arduino.h>
4 q8 P% p+ T0 ^0 u - ESP8266WiFiMulti WiFiMulti;7 U& _9 _) ?+ a6 b6 s( O
- ESP8266WebServer server(80);! g. z2 h3 b& X$ k
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";( j7 f+ d2 b7 V( B+ G; ^
- ADC_MODE(ADC_VCC);
4 j/ Z d& A+ b% D. m) A: P - void setup() {
4 }! _$ ] i/ b" R - Serial.begin(115200);9 D: x% j4 |: s" f% h
- Serial.print("\r\n\n");
7 m4 B3 O2 N1 V5 O- K4 Y4 h - pinMode(2,OUTPUT);
6 B; n% H& W% b6 }% R - // WIFI( x# o: Z% |! H% e
- WiFi.mode(WIFI_STA);; K' R6 T2 m! p) c" }
- WiFi.hostname("Sparkle");
4 M0 d7 H: o, z - WiFiMulti.addAP("wifi ssid", "wifi password");4 e t: ~+ C3 Y9 f4 k+ `
- int tryNum = 15;) i. b( r( Y; L) M
- Serial.print("Connect WiFi");
9 D) R& D/ w2 i0 D. j7 D - while (WiFiMulti.run() != WL_CONNECTED) {
$ Q! L& ^8 f. a - digitalWrite(2,0);
2 f6 K1 C5 i ~/ d - delay(200);; |. T. }+ B/ \+ `/ B7 n
- digitalWrite(2,1);* V" ?2 @5 `! R A7 `$ L
- delay(300);$ v. b' g. H) w. c' X+ y
- Serial.print(".");- m$ _. K5 E8 ]3 S& b+ B' n: T
- tryNum--;. ^1 \3 n& [( i* |- f
- if (tryNum == 0) {/ j, ^ |1 y, p) Y9 V: u/ P
- // 1min* y ^% K! }) h
- // ESP.deepSleep(60e6);
0 c8 a( Y; i4 ?: J- B2 m% w - ESP.deepSleep(0);! m" Z2 U S8 t$ A, C; A
- }
/ A2 {9 m: Q; i: \$ O9 N) n! l - }
( ?$ N1 _* }( ^) c - Serial.print("\r\n");
: ?7 i/ A1 |8 a6 @2 ~) e ?+ J - digitalWrite(2,1);$ T( }$ s! C& T
- Serial.print("IP address : ");4 d3 s4 \8 C, @ O$ k
- Serial.println(WiFi.localIP());
) m0 h/ w$ M( M) _! U7 K* d - server.on("/", HTTP_GET, [](){- a& ]2 }3 F6 c) I2 J
- server.sendHeader("Connection", "close");
9 H) R4 q6 `7 E P! M& b' M - server.send(200, "text/html", serverIndex);
& ?( p/ k; W" z - });
7 x! ?6 e* Q" G% ]. T" [( m6 i, Q' b1 A - server.on("/update", HTTP_POST, [](){* `( F! z5 N. R. O$ ^
- server.sendHeader("Connection", "close");7 m0 m/ Q5 ?" G
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");! |) \) _) P- u6 k
- ESP.restart();
3 k5 y/ E+ p& T! E - },[](){2 l# g, L }; Q# R0 v" O2 t
- HTTPUpload& upload = server.upload();
+ V2 s+ ?- s+ V3 F% D+ L/ q3 h - if(upload.status == UPLOAD_FILE_START){
0 P# Q: j' G$ e& S! M - Serial.setDebugOutput(true);
6 J. n( i" I. n+ l1 s I+ Q- Q, h - Serial.printf("Update: %s\n", upload.filename.c_str());! ?) l! k8 M3 x7 Y6 L: R7 T
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;: r$ v3 L' P! f3 m
- if(!Update.begin(maxSketchSpace)){' w1 S5 g% r/ Y4 W( n
- Update.printError(Serial); P. S# N5 }3 E: [7 C7 P
- }
8 E& ~6 J$ t4 B# m; h: P% J: c9 C - } else if(upload.status == UPLOAD_FILE_WRITE){
$ `8 w V0 {$ A5 n4 r& Y" c - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){$ H8 L; E! K) |3 U" Q2 [/ d8 V
- Update.printError(Serial);
; d9 h1 q. \, h% p, E+ t+ B3 b - }
# |1 s' i ?4 v! _: ^ - } else if(upload.status == UPLOAD_FILE_END){
3 f1 T* B1 b, u A2 r) y - if(Update.end(true)){2 \' _8 q" q! Y8 Q4 X6 L
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);1 k4 h3 n$ k7 ^$ a- x
- } else {; c+ }& `$ z n7 S
- Update.printError(Serial);
) y K: W, n, q% D/ t5 K - } J+ s+ j; u4 F6 J
- Serial.setDebugOutput(false);
7 }. T+ A5 F) `, A - }! o+ R4 C. ]0 h" x
- yield();$ g% Y2 k, S& @" {% D `( n
- });
$ c$ D; |% E' e2 z -
; H. A2 Q0 T' g/ o' W9 L# d; q - digitalWrite(2,0);
# K4 ]% C* u+ ?/ ^' R1 f; Z8 s - mainAction();
N/ k ~1 y; n3 u1 K - if (digitalRead(0)){7 b* N; Z* ^! N+ n$ ?* P
- ESP.deepSleep(0);
( S+ `" T8 J' v* C- H. G& E - } else {. \, O% t/ E0 w1 [% Q
- server.begin();
$ O; n# B# Q" { - }( t2 |. R! F: r! C Q
- }
6 B }7 E2 @) l5 I3 n - void loop() {$ S$ j+ Y' R8 I! p& ~/ w' d
- server.handleClient();. R1 T5 z' n, M& d2 q
- delay(1);; T4 \; X6 V0 ^0 t! q1 s* y" V
- }
# ~9 ^5 f$ k& E( G n6 T% l+ s - String doGet(String url){
. q, y7 ^% H0 Z0 f {' B5 G; d - if ((WiFiMulti.run() == WL_CONNECTED)) {
: w. ?7 x7 S' o" W9 [ - HTTPClient http;% O4 y5 H8 T, w% B$ K4 [, {
- Serial.println("[HTTP] begin...");$ e( j' Y* O3 @; y- i' i: A
- if (url.startsWith("https")) {
; d- Q( H* w2 L6 y0 |+ i+ v! |6 X B - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
6 r! @' s r" |) o" _5 @. \' B - } else {
( x1 _ s' X9 b2 v - http.begin(url);
! g9 r, k' ~$ L: E4 q - }
; n7 R2 }8 c) F5 Y2 H - Serial.println("[HTTP] GET...");( C2 A; u4 V2 R# n
- int httpCode = http.GET();3 t/ x4 `# l u9 l7 f* a& ~
- if (httpCode > 0) {
" p# e/ @+ G: _2 I) u T: w - Serial.printf("[HTTP] code: %d\n", httpCode);, n* S0 O1 ?( _1 L, [
- if (httpCode == HTTP_CODE_OK) {
3 z- S5 D5 ^$ {$ s+ e! E - String payload = http.getString();1 S1 S+ S! ]) N$ s
- Serial.println(payload);
. C1 b& E& `3 }- M1 u5 A - Serial.print("\r\n");
7 F2 L) {% A) T) E# \ - return payload;
' ]: F, G# [; T& V3 N$ e - }. w+ U& Y# ^8 x) P4 d8 R3 C, }7 \
- } else {4 ^2 s! m2 f3 Z
- Serial.printf("[HTTP] GET... failed, error: %s\n",
# c7 f6 [# q# g" R0 w - http.errorToString(httpCode).c_str());: r3 ]* A4 w* k2 l
- }
! z K# Q, U! E1 [6 e - http.end();
7 |# ]4 S& u4 Z% C* A6 x - return "";
' P; K4 p" C* j' e - }
. z2 G6 z9 d5 {0 G; | - }, W7 }( R& Z4 \, H0 J# [0 K
- void mainAction() {" r( q2 b1 E$ @4 E4 V, r) @
- // 发送请求4 M+ O# y# N1 ^( [5 E6 H
- doGet("http://google.cn");8 Z: V/ F3 c5 d2 Q$ a. y2 N) {
- }
* b1 Z; c+ ?. E* w# g) L
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