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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)7 i7 Y3 c7 o: u& I. l. @
- #include <ESP8266HTTPClient.h>* f( x- Q, ^" n0 n" e1 n
- #include <ESP8266WiFi.h>$ m, g7 f1 U" E9 a
- #include <ESP8266WiFiMulti.h>, }* W# I! l: W' @
- #include <ESP8266WebServer.h>
7 A) ]4 @) y7 `& ]6 G) N3 } - #include <arduino.h> T% s1 C1 Z0 ?1 ^0 |/ X
- ESP8266WiFiMulti WiFiMulti;
% Q9 ?9 f8 ^6 |6 p# Y: ?: G - ESP8266WebServer server(80);
4 ]$ u0 y' N: W2 a- e3 ^ T; G - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";1 K- T* B9 {' u7 M; B8 Y
- ADC_MODE(ADC_VCC);
^/ d/ B2 O7 ~/ G( c - void setup() {2 a( R; J4 y" O! b9 D5 i& |
- Serial.begin(115200);
( Q: R" h' m% X) r5 z - Serial.print("\r\n\n");
0 R. A5 I- q$ g( H4 g: @# G$ ~$ S- K3 ` - pinMode(2,OUTPUT);
9 @ ^6 ?9 f# G# t' }: w3 Z: W - // WIFI
7 V+ l" J p! e y" l, |3 [, b - WiFi.mode(WIFI_STA);
! K3 t$ K7 E; a: z4 }; { - WiFi.hostname("Sparkle");3 y$ p5 A$ }/ v. C! H
- WiFiMulti.addAP("wifi ssid", "wifi password");5 F4 G4 _2 L& f9 T- E1 w9 `
- int tryNum = 15;
; ^* _& n: S. V! e( {( z - Serial.print("Connect WiFi");
) b8 q: j/ F$ D% i: i" r - while (WiFiMulti.run() != WL_CONNECTED) {9 e3 x2 x: b9 i4 H7 [$ g( I
- digitalWrite(2,0);
; B- \( h& `/ e' f6 E* a" L - delay(200);
2 [8 |( }+ p7 H4 d+ \# A/ C, b* a - digitalWrite(2,1);
2 S1 k$ Q: y/ K# V' Z - delay(300);$ \* j2 r' H! t E
- Serial.print(".");! J- z$ l' o3 G3 K( W0 `% i+ l
- tryNum--;, T, |7 d; j2 s8 ?4 j: {
- if (tryNum == 0) {
( h$ {5 M3 u2 u6 Z# Y - // 1min
1 S6 a; a0 ?) \- H. ~$ Z - // ESP.deepSleep(60e6);- g7 S6 y+ T$ o2 ~3 D8 O
- ESP.deepSleep(0);
5 S6 R/ c8 J2 ` I/ I - }5 Q; u" P1 P/ V& m0 ^
- }
; i7 K' d7 v, _/ R - Serial.print("\r\n");
* h5 c* D( _5 @# W2 I - digitalWrite(2,1);- H, W3 m2 t/ e5 i' \
- Serial.print("IP address : ");0 }0 |9 M8 \; c" ^) z
- Serial.println(WiFi.localIP());7 l, t- X- W+ C& ^- P# E+ w
- server.on("/", HTTP_GET, [](){# ]3 ?1 S, C) R5 t
- server.sendHeader("Connection", "close");. Y. [3 o( ^: A" w6 q
- server.send(200, "text/html", serverIndex);$ v5 U# q) ~2 c, ?/ F l
- });
! G. S% `4 L: o5 Y) v0 D3 K - server.on("/update", HTTP_POST, [](){2 A; D% X$ a6 O1 @
- server.sendHeader("Connection", "close");$ {8 u' J5 k- |+ V
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
. z: f1 L& T+ j3 i, e - ESP.restart();* S7 N! m& b X4 J V
- },[](){* T# z- ?8 D: B% }9 h
- HTTPUpload& upload = server.upload();
' C! I# i) N0 B" j: q - if(upload.status == UPLOAD_FILE_START){1 F3 F! C1 h' K: J
- Serial.setDebugOutput(true);
- z4 F. E7 E+ ?1 I - Serial.printf("Update: %s\n", upload.filename.c_str());4 q* y p0 o- K* |! z# q6 a# R
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;; a4 [) t @, |, x0 W6 F8 j
- if(!Update.begin(maxSketchSpace)){
. G3 n S: e6 [! { Y6 U - Update.printError(Serial);, x& k) b2 {) h) {1 \
- }# L, \- j' {! u& G1 D! ~
- } else if(upload.status == UPLOAD_FILE_WRITE){
. `# I! E' T5 \4 I' } - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){6 J. M) W! q+ m
- Update.printError(Serial);
* ^& i1 f4 x9 h' g1 p( u: Q5 | k - }
) V( S% j4 ]" f6 ~, Q - } else if(upload.status == UPLOAD_FILE_END){
: Y- \. P# X) [1 `4 t- M - if(Update.end(true)){+ M7 ^8 {8 I( w
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
# t, R' Z0 X3 g/ P - } else {2 n u3 i& e% Q" m& @$ h
- Update.printError(Serial);
/ _& D; a) I. a& H9 ]7 ~ - }
) N1 n6 F- ?# G( {# ^: c - Serial.setDebugOutput(false);( V5 Z1 ]2 O! H( }2 }- R) T) i) I4 I
- }9 e6 f1 w0 x8 }. d0 R6 [( M/ |
- yield();
* \" V; k( D2 P4 M( } - });
7 ~& d" @, c$ u- K -
# n% @, p$ Y% o - digitalWrite(2,0);9 j2 D- T9 q- h% t5 d
- mainAction();
8 S/ T( D# z8 m: D1 {% f& R! P - if (digitalRead(0)){/ Z c$ B; g s: P3 I0 T
- ESP.deepSleep(0);
- T' k9 I# Y3 K+ [5 ]1 D - } else {
" h8 u& B; Z) Z - server.begin();9 t9 h' g X, G* G5 ?# i
- }$ W; B& l' b$ K/ j8 |4 T
- }" `" @! l$ T. ~# E7 i
- void loop() {
6 q0 A% O. r2 A0 T0 m9 O) b - server.handleClient();
/ ^1 o9 I5 ^5 } - delay(1);
8 r n0 ~- r+ z8 J# Q. z - }$ \( a1 F/ d2 u! ^
- String doGet(String url){/ b, q$ G5 K- E7 P( q' {
- if ((WiFiMulti.run() == WL_CONNECTED)) {/ X7 w5 H( F' @1 P) L3 ^6 \; I
- HTTPClient http;$ L& c0 {7 r9 t6 O. s3 E
- Serial.println("[HTTP] begin...");
/ [' Z% J9 i4 o( {4 M - if (url.startsWith("https")) {8 q+ J% e$ g) Y$ F' L5 i
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");) W$ b$ V" Q! ]- h( }- r/ z0 v! k1 s
- } else {9 z$ ^ O- M- l' ]5 d' ?6 b& D
- http.begin(url);
1 N/ K+ `9 U$ z2 n - }: A H- ~! a9 k
- Serial.println("[HTTP] GET...");
1 p Z/ }& Y; |+ }7 Z% c - int httpCode = http.GET();! O+ k0 `7 T' W k
- if (httpCode > 0) {
+ R# c* U @, B% o - Serial.printf("[HTTP] code: %d\n", httpCode);
4 c2 D4 j5 n9 v) G - if (httpCode == HTTP_CODE_OK) {
# H& F& x6 p1 W4 T: M x. x7 n5 i+ j - String payload = http.getString();. N. g$ a3 }# E3 k6 q; K( r
- Serial.println(payload);5 J# r+ P7 _5 J
- Serial.print("\r\n");
6 U( i" i' F3 K, @ - return payload;
. B8 ?: ?( }* | - }$ s4 E, C/ C% z# v0 y
- } else {: r2 z) `' h7 ^6 W
- Serial.printf("[HTTP] GET... failed, error: %s\n",$ F) w* s" y0 G
- http.errorToString(httpCode).c_str());
! U8 y) L( q3 N, M. P - }0 X1 l7 L2 @, p7 n0 r( b+ w3 J! ]
- http.end();2 D; s ]4 b* B5 ^8 e* {7 |
- return "";' p; p) o7 Y) |" ^2 {% a# ]" x
- }
8 Y/ Q/ w9 `2 {/ ^$ e - }
- b. D1 ?5 W J8 @8 X) E - void mainAction() {( o) t' |1 ~& Z- U1 v
- // 发送请求. a; f+ K0 A, ] b% h6 F
- doGet("http://google.cn");
7 p1 p) T+ h: N4 @6 r$ t - }& i* d6 I% Y3 _# C9 c
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