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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)$ e/ U: @ J9 f% ~' Y! [
- #include <ESP8266HTTPClient.h>5 a) e6 G* z- h
- #include <ESP8266WiFi.h>
/ Z; ` U6 p3 K/ _8 G+ ? - #include <ESP8266WiFiMulti.h>
' K- @! s# [3 y$ p9 z& g - #include <ESP8266WebServer.h>
; Y( g+ Y) h9 Z# w. p+ ^) N - #include <arduino.h>7 h8 F/ T' r' y1 g& V1 D
- ESP8266WiFiMulti WiFiMulti;0 B0 x: c: m4 d- Z2 M* f7 K) e
- ESP8266WebServer server(80);
' J* v- f, M: U6 u( [; f8 J4 k. C - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";. g% Q& y- Z# W2 a* H
- ADC_MODE(ADC_VCC);
" o8 P1 u5 F& B) X3 e. I$ a' F$ y! { - void setup() {
$ W" x" T; X; y' Z4 V# Q - Serial.begin(115200);
+ Y* i- _2 k0 x" O0 T - Serial.print("\r\n\n");
* y- K/ A; o# H5 Y) d - pinMode(2,OUTPUT);
5 V% j, [" V- F! D, t - // WIFI4 Q6 {+ v a9 C5 l; [' f% v
- WiFi.mode(WIFI_STA);0 w* q) l; C$ M U1 s E
- WiFi.hostname("Sparkle");" y( u% j: h5 v2 ?
- WiFiMulti.addAP("wifi ssid", "wifi password");# \7 K; Q0 j1 A4 t) Q- e
- int tryNum = 15;# c j% R! h6 T/ l. J R: F
- Serial.print("Connect WiFi");$ ?, o- X( Z( ]1 w
- while (WiFiMulti.run() != WL_CONNECTED) {8 H' W0 `9 h' Q# l/ f5 P
- digitalWrite(2,0);
7 g% K9 V% y! S# W$ d& F- w$ f+ ?, l - delay(200);
: S3 l- H, A( O- D! O2 V8 p - digitalWrite(2,1);8 m/ i2 W5 h$ x# a4 p
- delay(300);
- ~$ M/ R# r4 P - Serial.print(".");7 w q2 p$ z3 j S _8 `
- tryNum--;" b1 A9 g. W7 f
- if (tryNum == 0) {
1 x3 Y* b% [7 Z* O - // 1min
. Z% }+ p% q) _- ^1 G$ m! @ - // ESP.deepSleep(60e6);
3 X" u) m& H4 \3 L6 k- p7 s+ b% Y M - ESP.deepSleep(0);' d6 j* l4 K) }- K% D
- }2 _2 d" M7 R1 k. e. u2 h
- }
; u! S$ Q1 W2 B- S* e# H- U - Serial.print("\r\n");1 Y+ s( j5 `; d7 T
- digitalWrite(2,1);
( b6 K( t2 b3 p4 [! y# \ - Serial.print("IP address : ");
* S1 C }- l6 n: Y' G - Serial.println(WiFi.localIP());6 B+ {! s; U& T2 ~
- server.on("/", HTTP_GET, [](){2 j! W; i. q& B! V2 I
- server.sendHeader("Connection", "close");
1 Z6 k1 e5 @; L0 ?/ G6 `3 a - server.send(200, "text/html", serverIndex);
+ e9 t+ y2 o; g& q3 F# n$ } - });9 y% I; l% _/ ]% ?: B
- server.on("/update", HTTP_POST, [](){
9 I1 b9 Z3 `$ ]0 v* k8 ` - server.sendHeader("Connection", "close");: T: G( W9 i% s' N
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");- c' S8 E8 y+ N4 O0 p% h2 J" y
- ESP.restart();
% T& C- v# S/ }8 b' {" q4 m - },[](){
, v# E: g v4 \- p2 ], Z - HTTPUpload& upload = server.upload();7 O) L l' u% d
- if(upload.status == UPLOAD_FILE_START){
, x7 }. a- u; Z, F5 M1 v$ e - Serial.setDebugOutput(true);
3 E5 p* A2 Q: Z# }) }: p$ t - Serial.printf("Update: %s\n", upload.filename.c_str());2 |: d, Z" H- u5 s% g" f; J7 V2 D1 H
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;. Y K8 d* o) s
- if(!Update.begin(maxSketchSpace)){
; [( Y& n$ X; v0 {5 _ - Update.printError(Serial);: z+ ^! F6 F" W, P2 ^( _: x
- }
^) Y) r/ h: s6 ^/ i. E. F( p1 v - } else if(upload.status == UPLOAD_FILE_WRITE){. s& @' Q3 V! q# T
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){- ]7 z, r2 f! W3 d/ t/ [
- Update.printError(Serial);8 t A% v9 }: F; C6 M
- }
0 [/ N4 B. I$ R5 i- z8 Z - } else if(upload.status == UPLOAD_FILE_END){& l* t7 N f6 Y& p1 Y5 P( I7 T
- if(Update.end(true)){" H/ G9 ^$ t0 X7 N4 ]7 `# Q
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
# q1 U5 I3 m R. {9 q - } else {
: {5 L% U1 V* t3 \& O% i - Update.printError(Serial);3 K: G/ U3 F! C) C
- }
3 ]1 k7 A7 Q2 `9 L" M - Serial.setDebugOutput(false);
$ i4 d7 }6 T: d- c$ ?5 Q8 d, L - }
7 ?" q% M" I( P w S. @: I/ X - yield();3 }7 j$ t' h$ X* ?
- });6 E% ^, t! p# C1 @: [5 D* L
- ' }% E9 i$ k! V5 h1 G. ]) v' P
- digitalWrite(2,0);
6 O& A; s: Z' h4 z' D. G. F: b* S1 } - mainAction();
& N+ I% q* o% n5 d5 b - if (digitalRead(0)){: T% E! X; p5 i2 v: H
- ESP.deepSleep(0);) Q" O3 A2 t4 r' B7 i. z
- } else {9 ^$ n' }9 S) N7 G+ l" e- W
- server.begin();# }; D2 q6 c7 H( V
- }" p" ~# o7 c" [. ~. Q/ I5 v
- }
p4 e& l* h; B+ T r/ c - void loop() {
" X6 T, b. C8 _2 W r - server.handleClient();6 J, u7 }- r: o) x2 U% n4 Q
- delay(1);
, M3 g# r* Y$ S5 m! f% _6 N - }3 T( j0 K! c$ E5 i
- String doGet(String url){
) P8 V6 t5 V( } - if ((WiFiMulti.run() == WL_CONNECTED)) {
9 p- P+ ]% o8 v) x% h - HTTPClient http;, A E) M* x: e% g
- Serial.println("[HTTP] begin...");
3 C7 ^; [& N) }& P8 I - if (url.startsWith("https")) {
7 B( i& g5 j# l. x" i0 a - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
9 ?9 U) G8 E9 o3 m$ \0 R - } else {
+ Z8 t6 l8 [8 a Z9 S - http.begin(url);
8 L- M0 J4 z3 C2 s ~4 { - }
3 n9 L) b# Q' L7 i& A y& a - Serial.println("[HTTP] GET...");
9 K7 @/ `' x `& Q - int httpCode = http.GET();1 Q( ]4 i4 L! v' `4 C) t: r
- if (httpCode > 0) {. f1 @8 e& o7 G3 J2 i, W- M. I
- Serial.printf("[HTTP] code: %d\n", httpCode);
# F9 d5 r) U8 F2 k. v8 | - if (httpCode == HTTP_CODE_OK) {
* H( _1 Q, i3 C4 P" W+ b5 m7 c$ c - String payload = http.getString();0 Q9 w6 v0 m% V+ E% Y6 ?! H o
- Serial.println(payload);
0 z# S% Y. N( v+ c, S3 J - Serial.print("\r\n");8 y0 S. Y0 i7 P5 E* q
- return payload;
; q4 r6 O9 w; E# Z2 Z - }
; |9 E) ~. c5 [9 ~1 P- o - } else {& u& R4 p) H7 ? u& |
- Serial.printf("[HTTP] GET... failed, error: %s\n",6 B& T# Q8 G1 x) f; ]
- http.errorToString(httpCode).c_str());
5 M2 y* o( e; J5 d* d - }- j9 C) W }& E
- http.end();
2 P' H2 ?* Z% {* L3 ? - return "";* \4 a9 |- Y1 C2 E
- }
O0 f2 `3 h( f( T! n' X& r8 D+ a - } A J8 K" b- m9 p0 w
- void mainAction() {% r/ o m3 U8 W7 B1 Z7 p
- // 发送请求
, O- ?/ B/ ^# ^9 X' v5 ] - doGet("http://google.cn");& y- F, r: x4 L0 c1 S/ [& s X
- }" S. }( r& R( J
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