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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)
* y2 z7 D4 U F( Y- #include <ESP8266HTTPClient.h>
* z9 \' i- y2 T0 ` - #include <ESP8266WiFi.h>
6 R4 ^# A( j. z3 `9 a. e9 \ - #include <ESP8266WiFiMulti.h>; @2 s# s* ? {0 M' i
- #include <ESP8266WebServer.h>: l% O! y. }$ p3 l
- #include <arduino.h>
$ q1 r8 p @. i; k1 l8 K2 p - ESP8266WiFiMulti WiFiMulti;
% t! Z/ ]( u- f( x, L% H. }4 ] - ESP8266WebServer server(80);
! x) @$ ^' I9 n- G - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
3 Z+ r3 }; V. p# Q" I+ d" k - ADC_MODE(ADC_VCC);8 |/ j6 k; @ ^- N2 H+ W2 t6 J
- void setup() {
. I/ M5 V2 _6 W/ K9 t" P - Serial.begin(115200);7 ]2 v" u) i0 i; x7 H, i+ |
- Serial.print("\r\n\n");% Q8 h# e$ L- s3 E( B6 h
- pinMode(2,OUTPUT);
; W. W0 P* q6 f* A - // WIFI) V1 k2 f2 J; I, L# A
- WiFi.mode(WIFI_STA);
; V0 R D0 ]* ^7 G* S - WiFi.hostname("Sparkle");
! W3 C; d9 w4 ?" p" k6 \1 { - WiFiMulti.addAP("wifi ssid", "wifi password");- p; u7 V% X9 ?/ k' M) I* E, _0 w
- int tryNum = 15;( l! D1 `; q( T# t
- Serial.print("Connect WiFi");
; ]: H& k( w1 E7 F% a - while (WiFiMulti.run() != WL_CONNECTED) {/ S" H- Q1 v- |/ z% `; f- g
- digitalWrite(2,0);
' n8 I( V" f3 R - delay(200);9 l8 U' M7 l+ D2 N; l5 D+ z
- digitalWrite(2,1);+ \2 A0 B% y) R! X- a3 Y9 y" v( ~4 S6 L
- delay(300);" y5 v) L% O* F% E3 ?3 @
- Serial.print(".");) U4 O; Y: \9 ]* P9 z* V
- tryNum--;, ?. Z- C! q6 F) ^7 \
- if (tryNum == 0) {
3 G7 {% U' m A7 G& p& d - // 1min
) s1 t3 S* f$ m - // ESP.deepSleep(60e6);- r" G9 j( z) Q5 o& o$ y
- ESP.deepSleep(0);2 Y/ H! L" s* |( _1 G" w E
- }0 F Z/ `- Z6 `# o/ R. Q; c& i
- }
! U q6 k- {- ] i - Serial.print("\r\n");' [* A; \/ B2 k0 L# N
- digitalWrite(2,1);
* n' Z2 U0 E- ~& k' z4 _ - Serial.print("IP address : ");
7 Z- w& W6 B+ t: z* a, Z8 p - Serial.println(WiFi.localIP()); n5 H2 @0 t' ]
- server.on("/", HTTP_GET, [](){, h; Z7 r' v+ i
- server.sendHeader("Connection", "close");
2 F- p0 L5 E2 Q% E1 x - server.send(200, "text/html", serverIndex);/ c6 e% `0 Q0 {8 m( G/ H
- });/ a" y/ y- @; ] V! u
- server.on("/update", HTTP_POST, [](){$ w/ E; b% Y/ U- y2 A
- server.sendHeader("Connection", "close");2 i* q" E; J' o, W p8 E5 {; P3 A
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
* V0 c, g8 L2 S* { - ESP.restart();. C$ a Y0 N5 ~! A W
- },[](){
5 }2 f9 x4 t4 [" v% U - HTTPUpload& upload = server.upload();
* J- p+ ^" Q$ c* J7 Q7 D - if(upload.status == UPLOAD_FILE_START){
5 e, V, a& ^" Q* @- T S - Serial.setDebugOutput(true);
2 @8 f8 R9 V' }2 b. \ - Serial.printf("Update: %s\n", upload.filename.c_str());6 C0 I. K! }4 I& w: i
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
, r' e( y% a9 c+ }9 v* r X- [& V* @ - if(!Update.begin(maxSketchSpace)){
7 c$ {) E% D7 U) c* ], a5 h - Update.printError(Serial); @' v/ t3 K% p- x7 s- l& A
- }
! v. p% d( P2 @. V- R3 D- V - } else if(upload.status == UPLOAD_FILE_WRITE){* _& r) _. H& G$ I+ T) ]
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){6 i |2 m5 P' ]+ T4 \
- Update.printError(Serial);
9 d: m& V! [% ~' E; \4 L - }) m+ f e' X E! T
- } else if(upload.status == UPLOAD_FILE_END){
8 l6 T7 w% z) v - if(Update.end(true)){
) U5 Q7 C* m" b! H - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
+ s! l' T+ G- m; ?& Y - } else {
" S5 W# Y1 G! t& e/ K a% d - Update.printError(Serial);
! _* L6 T8 _* K( U; o0 Z2 h - }
8 B3 `' p- [6 i - Serial.setDebugOutput(false);
5 D- O; {, q' Z/ E: ~# ` - }7 v; O2 M9 G/ v. U; H3 ?# c
- yield();& s8 [, ^0 _1 Q( V9 S2 M( f; h
- });
0 R0 D0 X% W B0 Y' y -
; A8 R7 X) r3 z" D - digitalWrite(2,0);
% y( _1 e! F' ] - mainAction();
6 y& g& J% I1 q$ l - if (digitalRead(0)){. q- [- L R- Q
- ESP.deepSleep(0);
7 d8 F% s# T) f0 u - } else {' H0 _$ |" ^8 z+ U% {4 w
- server.begin();/ K7 S9 t; L; [1 \5 U
- }
( w" s6 z( s3 v - }
3 ^, ]$ ^) H/ k# U+ K" c - void loop() { m4 v& q; N! a' m
- server.handleClient();& Z( G# i9 H0 C$ x7 V, c+ D
- delay(1);
# G) Q8 _8 v* i% } - }1 ?! f n# y+ `7 `2 U
- String doGet(String url){* \$ N2 v$ D- G5 {- Q% G; P
- if ((WiFiMulti.run() == WL_CONNECTED)) {: d. q" t( ]1 `" s k8 h% Z
- HTTPClient http;( ]7 b5 Q7 R: g; r S( G# T
- Serial.println("[HTTP] begin...");
* E4 D8 p8 f4 F2 b- W8 ^" A - if (url.startsWith("https")) {3 a/ q0 |. }! D: r: K6 n
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
& F% r' _8 n$ Y6 p/ x/ v9 ] - } else {
: D2 x+ \. I4 p- a - http.begin(url);
' G8 y: o1 Y! p; w6 r+ Z( T3 g% i) f - }/ {7 e* W! u3 B$ J% f
- Serial.println("[HTTP] GET...");7 Y5 _- T# X0 y5 X
- int httpCode = http.GET();$ M& S6 b( ?& e% v0 d9 }
- if (httpCode > 0) {. k& p2 H: O" p. w
- Serial.printf("[HTTP] code: %d\n", httpCode);
2 E' n9 z4 o) o6 z+ z/ O* Z0 e# z - if (httpCode == HTTP_CODE_OK) {8 g2 H: n! @/ Z9 o e( ~
- String payload = http.getString();' n# P) f. ]1 t0 n% k* I
- Serial.println(payload);$ I o7 Q j! o7 ^3 G
- Serial.print("\r\n");2 {: j+ ]) {2 m; ]5 X* S
- return payload;
& W7 Y6 G7 y; D& l8 v& S0 { - }
* q! X! J8 w9 {0 q0 z - } else {
" q1 \ I" q: [; r - Serial.printf("[HTTP] GET... failed, error: %s\n",
9 w( r# B7 C/ \9 R6 i) O. U, V - http.errorToString(httpCode).c_str());
2 ]5 N/ H) c4 P- Z - }* i3 W3 J0 }. B5 @+ K: ~# @
- http.end();1 x! @! s6 K, y9 n
- return "";* a, P3 s- ?8 s# \6 y
- }" L/ s6 }6 y- m0 c7 q$ O; a
- }8 v+ h+ x; ]: M6 E8 U
- void mainAction() {
) f* B! k+ E' z) }- d m - // 发送请求4 x5 s+ F# s( T* j% {6 U
- doGet("http://google.cn");
9 g8 R! r; g4 S5 ] - }
0 `; j/ V9 z! g+ |9 ] p
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