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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). C: w7 o U* k! x* y( m
- #include <ESP8266HTTPClient.h>
$ e5 v, \* [7 p. w& v - #include <ESP8266WiFi.h>
2 }4 i2 s; T# R; o - #include <ESP8266WiFiMulti.h>
: c+ P! d5 z# K$ R, x6 c: W - #include <ESP8266WebServer.h>0 k8 W( K& R# B4 r k6 I
- #include <arduino.h>7 S( @7 j( T/ s
- ESP8266WiFiMulti WiFiMulti;
& E+ P+ A0 [" x6 K6 n# f - ESP8266WebServer server(80);0 z; N+ Z1 B2 j; c$ \5 _7 D
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";$ Y7 W6 `$ F" p, h+ _/ f# t
- ADC_MODE(ADC_VCC);
4 u* H% H- @) P- \+ K1 ~2 L' Y - void setup() {
$ T q* s7 n* Q; F - Serial.begin(115200);$ n* n1 w) b* S$ b; m
- Serial.print("\r\n\n");5 E X7 n9 _, V# S" t3 s W
- pinMode(2,OUTPUT);
. L! j3 w' s' D' A' J - // WIFI! [# U! b6 J+ ^0 O
- WiFi.mode(WIFI_STA);
+ Y9 q0 G: L* w; _ - WiFi.hostname("Sparkle");7 w5 R+ v) v3 f7 g
- WiFiMulti.addAP("wifi ssid", "wifi password");
! |6 r1 {9 f+ p: W8 A+ P% j - int tryNum = 15;. U3 Q* I3 F4 d
- Serial.print("Connect WiFi");
7 c6 v4 T5 U- m - while (WiFiMulti.run() != WL_CONNECTED) {0 c/ i7 `1 h6 v2 x: v2 N
- digitalWrite(2,0);1 [1 f) @3 y5 P0 p
- delay(200);8 K) C9 S4 Z$ p# e- W
- digitalWrite(2,1);7 F! B2 y. ^7 ^8 l
- delay(300);
! @' Y( N) P5 {, x# D' s2 W' J - Serial.print(".");
6 c# g* L# k, N- G, p0 P2 g - tryNum--;! x; A$ p* j, U2 e3 h
- if (tryNum == 0) {
) g3 a/ i# ^! H5 l! A - // 1min
" c0 D. h0 U3 `6 @9 y0 m - // ESP.deepSleep(60e6);- E# n- _5 ]0 t& f# D* [7 p1 e
- ESP.deepSleep(0);
! @0 {' n( `- b8 ]4 ^ - }" Q, T1 `1 U5 \" Y$ Q
- }5 n$ W$ R4 T/ f/ }; a+ o
- Serial.print("\r\n");+ f- e' r6 ?7 S& V
- digitalWrite(2,1);0 f$ u: H" `& x( R0 ]
- Serial.print("IP address : ");5 D3 K% ^! g! U
- Serial.println(WiFi.localIP());5 ?3 U- o$ s( z: [# R
- server.on("/", HTTP_GET, [](){0 x6 x0 i! r# e- n: i) Y4 d( n
- server.sendHeader("Connection", "close");5 p3 T& g& s5 R+ Q
- server.send(200, "text/html", serverIndex);
; P5 m( H! J% C: R* s - });
# s4 {: Y& D h; Q# d) w - server.on("/update", HTTP_POST, [](){
( _/ @7 Q7 b$ u2 [0 D9 R* Q* P - server.sendHeader("Connection", "close");: N t+ S& N# V+ V3 U
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
/ F) c6 l3 X/ {, P# z0 m - ESP.restart(); E1 h) m m' q5 t7 _" E; h/ | t
- },[](){
3 `; y- D6 v) f# S8 S0 ?) e - HTTPUpload& upload = server.upload();0 @8 n1 }/ u B# m
- if(upload.status == UPLOAD_FILE_START){
, d8 I- i1 s' B& s. m7 p - Serial.setDebugOutput(true);0 B4 Z5 S8 y0 ?! |* s0 {( X
- Serial.printf("Update: %s\n", upload.filename.c_str());& d) P$ Y- q9 [/ r# b
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
2 l3 ^- l$ q( p - if(!Update.begin(maxSketchSpace)){2 A/ Y( i8 [* c3 U' K% w
- Update.printError(Serial);2 @, I) I, t7 }( e
- }
1 L1 @# t! P5 q0 B' e - } else if(upload.status == UPLOAD_FILE_WRITE){% O8 A/ b' t1 ]2 J6 v: m2 J
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){+ k# l$ h) I9 i; T. w A
- Update.printError(Serial);/ g$ U- U5 H8 q0 ~/ u0 p
- }
! d. b) E4 m T3 g( W9 n9 I* ` - } else if(upload.status == UPLOAD_FILE_END){ m. q& l7 ]) b7 k! s# i( T
- if(Update.end(true)){
" {1 ^; _' O. e5 |% E - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);% M" t0 C2 f0 s- u- q8 L
- } else { r2 d% W7 }% X' x
- Update.printError(Serial);3 _8 p! H4 d+ M( H
- }
0 e' I0 d) P5 j! W1 o - Serial.setDebugOutput(false);: x+ i6 Z0 U1 r/ J6 W. J
- }; J+ B4 ]) [" w5 P! z
- yield(); @- Z. X0 D) |/ w4 M) m$ }$ ~. t
- });
( I4 K9 h# x; ~- C: S7 s - 6 P9 Y- W- z( w# E6 T/ a# [/ F2 f& M
- digitalWrite(2,0);8 t! `- x3 @9 ~3 Q2 Q0 r# U
- mainAction();7 N9 P j* A0 Y3 K9 t* I d9 ^
- if (digitalRead(0)){% C4 G% S+ o* o j b; _
- ESP.deepSleep(0);
3 Y; s& ~5 l/ r8 A) R - } else {3 N7 c5 A9 C" q3 o! z/ F2 ?' C& @- L
- server.begin();, R) @0 s. Z' @: x! t; M# e* R
- }
' L8 i2 L8 {" }- E) @3 d - }
8 Y% ]1 ?& ]+ t6 d- Z - void loop() {
, V* P c# Z" y+ z8 C: p - server.handleClient();3 j& d8 x$ q5 q! u8 g
- delay(1);$ l0 w5 h' c/ b) [' c& P5 I
- }
. A) b( w1 j: c5 ?% X - String doGet(String url){
- m: N) S2 i: Q" h - if ((WiFiMulti.run() == WL_CONNECTED)) {
) }0 Q2 \8 g; n! L- R% I3 O! U4 } - HTTPClient http;
; e7 n4 l( c5 Q) R5 k - Serial.println("[HTTP] begin...");) ?* W3 N9 K% \ M4 i
- if (url.startsWith("https")) {8 t5 q' t# j1 J1 Y
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
! O" o. y3 J0 ^. Z - } else {* x( R; D# g' G" h5 Q5 ]
- http.begin(url);
( k+ C* s9 c* w0 U0 r - }: K) f5 Y/ H0 L, d
- Serial.println("[HTTP] GET...");
3 X7 \7 v! i% r7 @) o - int httpCode = http.GET();
7 c% f, B9 n7 x1 G - if (httpCode > 0) {# ^9 y) c* J* `: R0 r& S
- Serial.printf("[HTTP] code: %d\n", httpCode);
+ M N7 `$ [. r* j" c2 ~ - if (httpCode == HTTP_CODE_OK) {5 m6 L' E3 n/ c- M/ g4 s9 n" e
- String payload = http.getString();
; ?% [4 Y6 S- v, h7 d& H - Serial.println(payload);
; T4 S4 J" y6 \4 v - Serial.print("\r\n");
# r! d& x. d; U& R8 t2 j* a0 o - return payload;/ S" d1 }$ E2 {" R
- }
* t9 w/ A/ m4 ]6 C5 J7 j - } else {4 G l8 h: v/ r9 ]$ {% l+ ]% {; J
- Serial.printf("[HTTP] GET... failed, error: %s\n",; C, h9 i0 p: V; S7 d* d# L7 n
- http.errorToString(httpCode).c_str());& F. ^6 I! F9 B( c) L
- }7 s: n* I2 e8 B& t# b
- http.end();
- o: E1 F/ o1 a9 \9 i5 E - return "";
% c! C3 X/ V+ m( e - }
& s9 p' B0 s2 q( d2 m4 s - }5 j$ A6 B2 D2 E
- void mainAction() {+ a9 t4 }# ~& H+ S6 D
- // 发送请求
1 L3 M6 o5 W. q1 j - doGet("http://google.cn");
" R9 e$ k8 G& S. B7 z% j. y - }
" g2 }; c. K+ s7 @4 E
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