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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)
( z1 j9 c% k: o- #include <ESP8266HTTPClient.h>
8 b" w' ^+ c0 K. f/ M - #include <ESP8266WiFi.h>5 J" G5 X- U' c
- #include <ESP8266WiFiMulti.h>( M/ s! p' V: `9 l: n9 O& f, l J
- #include <ESP8266WebServer.h>& h0 J5 c3 G* w! V J- u* t m+ v; S
- #include <arduino.h>
8 X1 _- t3 \" o- _/ j - ESP8266WiFiMulti WiFiMulti;! h' Q9 D9 u4 ?! o) c- Q1 S
- ESP8266WebServer server(80);: Q+ Z0 S7 u' k
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";- u. K9 B5 `% V2 @" ^+ E
- ADC_MODE(ADC_VCC);+ x, ~. f- f6 p4 {
- void setup() {
. a$ Y/ U+ w2 C/ ^9 o3 H: j - Serial.begin(115200);' I$ }# T- z! ^7 d
- Serial.print("\r\n\n"); p: M6 C/ Q/ A1 ~
- pinMode(2,OUTPUT);7 Y. F% R' P9 ^1 _' _
- // WIFI0 A. G7 W- Z2 [* d$ l8 ]' g% K
- WiFi.mode(WIFI_STA);
- F; `8 z! Z" T& m. z* _ - WiFi.hostname("Sparkle");4 [, p' J# i5 [
- WiFiMulti.addAP("wifi ssid", "wifi password");
3 i; Z9 u, |5 E- a1 H - int tryNum = 15;( ^( ?: ^6 n8 i
- Serial.print("Connect WiFi");
- {% G' A0 p: X v( N, x L - while (WiFiMulti.run() != WL_CONNECTED) {) e0 x) l6 K4 [& v/ z; u
- digitalWrite(2,0);) m1 x% \, X f* S/ s
- delay(200);
) {7 }4 K& k5 Y' `5 x' v - digitalWrite(2,1);! o, b1 U% {6 m- ~/ @7 @+ }
- delay(300);
. f8 W, z0 s7 m' O7 i2 @! p n - Serial.print(".");6 p6 k5 J7 D. l: s6 Z
- tryNum--;; d7 y% I' |8 ?0 \8 F
- if (tryNum == 0) {
! a# G7 {% Y7 g - // 1min
. V/ V1 t' \* j% z9 z8 g% f! n - // ESP.deepSleep(60e6);' l/ _3 Z7 H' l! `4 Q$ K; t: u
- ESP.deepSleep(0);! }; @$ F1 \, V1 F& U4 T
- }, h: a+ @ J0 b( r4 e5 _
- }
9 D; k& `) A' ~9 I- G - Serial.print("\r\n");
4 @- g( D5 _4 E7 d( K' o4 h2 y1 T) S6 o - digitalWrite(2,1);
- ^/ R5 ]* f G0 d- {: | - Serial.print("IP address : ");
1 _+ m) _' j! E; w - Serial.println(WiFi.localIP());
. `. }- g0 F* H) h ^ - server.on("/", HTTP_GET, [](){
' o$ g! }+ C1 q, O5 ^1 | - server.sendHeader("Connection", "close");3 H) R& _: T" `; r7 e
- server.send(200, "text/html", serverIndex);
0 x) `1 {+ A( ] - });' X. k- M2 Y" P) V. O
- server.on("/update", HTTP_POST, [](){$ W" b! ~7 u3 Q
- server.sendHeader("Connection", "close");
8 \, l' C- n: N, F' }6 M - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
+ E7 B v9 u" M2 } - ESP.restart();
8 p6 \0 I) P! b$ k9 c" v - },[](){
3 c: c' D' i1 j0 q - HTTPUpload& upload = server.upload();4 L( X5 L5 S: [* h: q% K* F) b
- if(upload.status == UPLOAD_FILE_START){
7 e4 E: t8 p# o7 E1 r b - Serial.setDebugOutput(true);
7 T9 Q( V: ]9 }* k) ~ O - Serial.printf("Update: %s\n", upload.filename.c_str());2 U; A8 K- i" s
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;- b. ]4 n r3 G: T7 \* o0 {
- if(!Update.begin(maxSketchSpace)){
9 b2 Y7 h5 X; o! x - Update.printError(Serial);8 }9 A7 \$ R" J* @
- }
, D* [* ~- P3 C0 m1 k$ F - } else if(upload.status == UPLOAD_FILE_WRITE){! ]1 N2 ~( V( ] C8 w' J
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){' ]/ k" P+ t$ W: S8 O
- Update.printError(Serial);3 Y9 L* W! i" j! g1 J
- }) r% Q' N$ W+ B9 F/ ?0 E
- } else if(upload.status == UPLOAD_FILE_END){
8 F0 U0 n+ g* m9 s2 {/ B: D - if(Update.end(true)){
0 i6 i2 ?6 s4 Z, g' J. i - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
- c* s6 I, M! k- @/ n7 f* d - } else {% G8 Z% [ y( z2 r! h/ ^
- Update.printError(Serial);
0 ^9 y: V8 {8 ?' n - }
$ z' `1 Y* y( f4 w- U - Serial.setDebugOutput(false); l4 r: a p0 e1 q# `- n
- }
' _# y# F# K; S9 h8 u% B - yield();
# D: {* ^7 W- N2 K: v* ~ - });
1 I; {- ^* _( W @, L% \ -
6 i! u5 g0 V5 P- T7 w, y - digitalWrite(2,0);
/ I4 p: Y! `* {' |, i L - mainAction(); J5 i1 H0 ?7 r3 a- S3 l M
- if (digitalRead(0)){
+ ^- g$ p1 l$ f* X! y& x - ESP.deepSleep(0);
+ h! A3 k+ _6 [3 a$ U! g - } else {
1 c) y2 v$ m2 s+ i% |9 w - server.begin();1 ?# f {& B5 X1 t- J1 G
- }# B m$ J& T! h
- } o! J, x6 r9 U- J( I5 g
- void loop() {
: a6 {2 M- A0 | - server.handleClient();
: s; d( |4 y* _2 {( y - delay(1);! l; w; F; [* X1 t
- }
3 E4 K6 B* _% D - String doGet(String url){
. p7 ^ x1 X2 j+ [0 X6 a& y! U1 d - if ((WiFiMulti.run() == WL_CONNECTED)) {
2 I9 x6 O% W N - HTTPClient http;
, [3 p) o& k0 i4 r/ q - Serial.println("[HTTP] begin...");
. e, v6 G! R& f* F) K - if (url.startsWith("https")) {
$ m$ ^( `! V) }* U5 ` - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");, \( Y8 b7 g# m* [
- } else {
/ ^& j8 ?4 Z! @ - http.begin(url);
: G6 B: R9 S+ Q - }
0 Z. I; V$ j/ u$ v, e - Serial.println("[HTTP] GET...");- i Q) t$ h3 A0 \7 ^# _. i
- int httpCode = http.GET();0 c/ Z5 Z+ R- ]) \& T
- if (httpCode > 0) {
- X: p( |, H" X$ f - Serial.printf("[HTTP] code: %d\n", httpCode);' G3 V7 R( G. p) P/ B3 E
- if (httpCode == HTTP_CODE_OK) {
0 o6 Q- L5 y: C' p; W* [6 | - String payload = http.getString();( a+ U1 L, | U) A
- Serial.println(payload);
# S6 W) c. X* o' f7 c - Serial.print("\r\n");
* y1 c9 U! ~( P5 T- n9 j z8 c - return payload;
% [7 I0 i$ F( U( [& `" m - }8 x( F" p# g9 p& ]" H. F
- } else {! J% r# ]: j e" [6 I+ q0 K4 x+ M
- Serial.printf("[HTTP] GET... failed, error: %s\n",; a4 q& l, f+ _, W; g$ L0 Q
- http.errorToString(httpCode).c_str());
& u2 v3 D. W; P" { I* Y, M - }( [5 u& d) \% x9 }& M j0 s
- http.end();
4 y& s/ a/ l w/ c0 d" \ - return "";' ^7 C9 ~% P# M- K9 G8 r
- }$ {& v# D) Z$ G( }8 C0 V
- }2 Z. ^! y) B. q% M
- void mainAction() {: I& X* { T, g& Z) z. p
- // 发送请求
( U8 D8 y, D5 s - doGet("http://google.cn");
- q# D5 z/ e, [5 T - }9 G9 V L2 i* q' F- U
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