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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)
! a; I# @1 n0 u/ }1 p) z- #include <ESP8266HTTPClient.h>7 N" _$ R$ T0 \; Q" [8 B
- #include <ESP8266WiFi.h>
+ F5 l* p$ K g: R0 a - #include <ESP8266WiFiMulti.h>4 ]' b! Y1 g0 r o/ u3 X- T; \3 K0 A
- #include <ESP8266WebServer.h>* L& ], x x: D
- #include <arduino.h>5 h( o5 t& N0 @( c9 Z6 S
- ESP8266WiFiMulti WiFiMulti;" |. m. O& e8 S0 T# F) b& o. |" b
- ESP8266WebServer server(80);
9 x" g0 b3 _% K$ @( {' u2 W) F L - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
# e" ?, C k! Q1 a" ^ W S- U" y$ [ - ADC_MODE(ADC_VCC);& ], U' Y7 y: o, h% p# J
- void setup() {
' V: i1 Z* n& V: k# L" W6 ] - Serial.begin(115200);8 r) X5 F! @4 z: m( J# D- Q
- Serial.print("\r\n\n");
3 L0 z* R' s3 M - pinMode(2,OUTPUT);
6 N5 V) A9 S. H5 j/ l5 c6 } - // WIFI
/ o) I5 x( e/ Y- h J! a - WiFi.mode(WIFI_STA);+ j: T/ k. Y* ]
- WiFi.hostname("Sparkle");
! d: _& k+ w! _; x8 e% R1 ~8 Y! ] - WiFiMulti.addAP("wifi ssid", "wifi password");/ e; t. {! Z: h2 i: l" c+ x# O
- int tryNum = 15;
$ d- j+ n6 a- F" G( f, C - Serial.print("Connect WiFi");
( M- c8 p+ U& l5 ]* a - while (WiFiMulti.run() != WL_CONNECTED) {
3 h. j5 F* d# w- f& w8 w- l - digitalWrite(2,0);
. x! Y8 z4 h, n8 d2 S - delay(200);0 A, N: ^6 [' _# N+ [4 l
- digitalWrite(2,1);
& d- ~- c6 U+ {. F - delay(300);! X( Y, L/ a( z; f5 A! w: L0 v$ A
- Serial.print(".");% W. n$ {, {: M: M
- tryNum--;
: [- O- u7 ~; z - if (tryNum == 0) { u: v5 v5 Z+ \- g, w. B7 }6 v9 j
- // 1min
' H; M+ [/ U7 g1 [ - // ESP.deepSleep(60e6);
4 H1 ^" B! [8 @9 X - ESP.deepSleep(0);
, V/ ~9 }/ A& c7 q* L' g - }
; P* f! @6 g! ^1 j/ a- a - }
/ ]9 E. Q4 f. p9 m) d4 B7 a" H - Serial.print("\r\n");; r7 X. ?% ^( [1 s3 M
- digitalWrite(2,1);8 x/ `5 O, A, q& S5 ]0 X1 `% J, _, U
- Serial.print("IP address : ");
* ~' e$ }) Y1 X - Serial.println(WiFi.localIP());! R3 p5 x( i N' t+ Y" q
- server.on("/", HTTP_GET, [](){
- x" ]2 ]& k# V - server.sendHeader("Connection", "close");3 \& f6 ?# t/ i' }
- server.send(200, "text/html", serverIndex);
8 L' {& X# W/ [0 d - }); x# k& k$ O( D# U3 L! D
- server.on("/update", HTTP_POST, [](){% x) M# F8 X- A* w
- server.sendHeader("Connection", "close");2 W$ b: ]; P: p
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
D/ ]) C0 m+ ^ - ESP.restart();
+ I( S( ^4 W/ R) E8 L% c - },[](){. d1 m' {4 I' R6 o- p0 p& K
- HTTPUpload& upload = server.upload();2 b( A7 s. F; E4 u
- if(upload.status == UPLOAD_FILE_START){
; Z1 W" E: S" ]2 V1 r/ W - Serial.setDebugOutput(true);
5 F* ~' s; Q, m" ]. n - Serial.printf("Update: %s\n", upload.filename.c_str());
( f0 \ a* B8 V: ^; @" q7 k - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
5 D( A( k; }5 L* M, M' C6 ` - if(!Update.begin(maxSketchSpace)){
9 h2 {! }+ a; S$ ~* s/ _; _; A. O9 {$ J - Update.printError(Serial);
! W1 @! x7 v+ Y( V1 n5 m0 c, D' | - }
+ {" C3 P* X$ y6 ~0 \0 Q - } else if(upload.status == UPLOAD_FILE_WRITE){2 a) {% Y8 r1 @5 F! ?- U; s8 Z
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){2 Y7 b& J2 @$ w8 ^! A
- Update.printError(Serial);5 H! c/ ]( r* Q# H& T
- }
4 {1 M" v5 z- q' R+ L2 f - } else if(upload.status == UPLOAD_FILE_END){& f9 Y: }' ?/ ^; K/ H
- if(Update.end(true)){2 A: n2 Y9 P) C: B" S. g
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);0 A7 ~) q: t1 X; i9 p
- } else {1 B9 L% r3 s' T" @
- Update.printError(Serial);
2 N* ~( N. N2 Z8 G - }5 H0 _8 |6 t* a4 Z' s* N0 p
- Serial.setDebugOutput(false);
: e1 l7 O F. y+ a - }: ]( W: |; I' b6 ]( l5 U
- yield();* Y2 N7 i7 O: W. F) w# |: j
- });( U) v. S' C0 H( q% V2 ?6 N# |
- ( Z6 R% D: b7 Q1 T( y, J% j
- digitalWrite(2,0);
) h: h: r1 i4 E6 u# E3 s - mainAction();
# W- X) r$ C% ~- W' Y& V! B - if (digitalRead(0)){3 o& k& }& b3 M
- ESP.deepSleep(0);& l: r# V, H& L- z
- } else {
- A$ R! o. G+ j& x9 r5 b - server.begin();
( W" ]! Z! @, r0 u3 e - }, v! K, _9 J+ j, Y: S3 }# x, _! b
- }/ K+ \6 j% x7 b/ c# `
- void loop() {$ K' Y N8 ~- {1 ^
- server.handleClient();
( W; C+ e6 Z" l) L" k* D% J - delay(1);
2 ]9 i+ ~" ?8 ^3 t - }6 Y# S* ?& g/ X; j
- String doGet(String url){, H+ y" |+ l. C' H
- if ((WiFiMulti.run() == WL_CONNECTED)) {
* T- o1 Y) D) Y2 n - HTTPClient http;
9 ?1 l6 |0 w* [6 B0 j( p' k - Serial.println("[HTTP] begin...");
; A( ^4 |% J& e - if (url.startsWith("https")) {7 `- n9 B+ s- D9 `0 |5 ~
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");1 H) d8 B) N7 Q7 P1 N
- } else {
: p; n7 H8 U E9 d1 i- y - http.begin(url);
* a0 T8 U: f$ |8 Y) X - }
& }: \: e! r& m. y - Serial.println("[HTTP] GET...");
' Q* M W" g& @, ]7 T) d+ b# v6 q - int httpCode = http.GET();' F7 ?0 k( r6 y
- if (httpCode > 0) {
% X6 I, P, [( O - Serial.printf("[HTTP] code: %d\n", httpCode);
. L9 H# ]' s6 W D# r+ @ - if (httpCode == HTTP_CODE_OK) {0 g; }* }( _: g8 [5 _
- String payload = http.getString();
, N$ Y( V5 W0 p$ |2 O4 I5 S - Serial.println(payload);$ u+ f7 }8 N; n/ ^
- Serial.print("\r\n");; u8 \; _! n3 d4 N( Z
- return payload;
* W, {0 W% Z3 m& w/ H% p - }, a/ x6 N# M/ j) T5 q
- } else {
- h! K% M. e" C& Q9 Q. J3 e - Serial.printf("[HTTP] GET... failed, error: %s\n",' j- I' M7 W7 l, P
- http.errorToString(httpCode).c_str());3 E5 l6 K3 m* P2 v& h
- }
3 P. A2 w1 f2 d- w3 K3 V ^ - http.end();
9 e! M7 o. S8 c- J, a' U - return "";
, H3 x2 P' E6 x" w" @ - }) v6 ?; H1 y4 i
- }
% g+ u' @. W, u8 H6 ~0 r6 @, O5 n - void mainAction() {! B* ]+ y( I& g
- // 发送请求
/ ~: C' v/ v# J1 \ - doGet("http://google.cn");8 B8 K6 J0 O- j; V1 ~) E6 G
- }
5 A% s& N) I2 q! [: u! t8 R
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