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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)
F9 g" }5 `8 W- #include <ESP8266HTTPClient.h>
7 l2 S( Y1 \( l$ f - #include <ESP8266WiFi.h>3 F- K( y. s9 |( B
- #include <ESP8266WiFiMulti.h>
6 F y; C" c" o" c [$ } - #include <ESP8266WebServer.h>- D+ M6 v9 i$ y0 S' k2 w7 O
- #include <arduino.h>) p/ ]4 Y# Z# d0 ]( b" t8 ^, d- s
- ESP8266WiFiMulti WiFiMulti;; j! k$ I) v; P
- ESP8266WebServer server(80);7 i+ ]& U) X/ y8 d; h1 d; e
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";# W" u, _$ X" h- J/ m: N" A
- ADC_MODE(ADC_VCC);0 o8 @# X0 Y$ U0 ~
- void setup() {- m8 @, l+ F5 h& q( h1 O; e
- Serial.begin(115200);
, S8 H/ K2 E; I. R& z, Z# I, \2 R- n - Serial.print("\r\n\n");+ l& s: P) Z* _ g
- pinMode(2,OUTPUT);
2 {) |5 C" a7 a" P - // WIFI9 E6 Z9 ~* ~; k
- WiFi.mode(WIFI_STA);1 l! e0 e4 N8 A- b
- WiFi.hostname("Sparkle");( g; o, @: K. L; k8 p6 D
- WiFiMulti.addAP("wifi ssid", "wifi password");% J: C5 V; u. s) p% @
- int tryNum = 15;0 Z- _- H" {* ~+ h; V
- Serial.print("Connect WiFi");8 {( D0 z/ O+ w5 z; j
- while (WiFiMulti.run() != WL_CONNECTED) {
! b& ^7 I( U+ V( A( \, W0 F - digitalWrite(2,0);
: \* [' W( U: \! D. A8 l - delay(200);2 e. R( ?6 r) K$ c5 Q8 [- T
- digitalWrite(2,1);( `! N- C8 c. B
- delay(300);/ q9 j; v& X" j* d
- Serial.print(".");2 z; y- N9 ]) W$ c' H
- tryNum--;7 V& c( ]. N- v5 o% ^8 R* ^- g: f
- if (tryNum == 0) {. [& s3 p# Y& o+ r( d$ |0 C/ x
- // 1min
2 J( @% k2 O E2 ? - // ESP.deepSleep(60e6);; s4 e8 I' m4 d. z
- ESP.deepSleep(0);
. c( {* H9 T6 ?2 _% } - }
\# q+ X3 b& W/ [( i! _ - }, q7 o: _5 j. ^
- Serial.print("\r\n"); z+ _) j" }: B3 S
- digitalWrite(2,1);
2 L: O! W6 z: t+ f3 o: x - Serial.print("IP address : ");& j8 G' M3 }9 g3 B2 Y$ E- r8 C
- Serial.println(WiFi.localIP());
6 q8 ?+ F! H* c8 d/ |& |( q - server.on("/", HTTP_GET, [](){
F0 R8 [9 o3 H+ b( Z - server.sendHeader("Connection", "close");
3 C( x- U- f& h! ^2 ? - server.send(200, "text/html", serverIndex);. @8 D1 r0 ^% [
- });
/ o4 I% q; J) L3 K: c - server.on("/update", HTTP_POST, [](){! [* o+ C7 l* S8 A2 ^
- server.sendHeader("Connection", "close");
: S, _' q6 Q7 r* D: D+ C1 x0 w - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
* H* e% ?/ ?' j- w- W8 q& H - ESP.restart();/ A8 [! v7 R7 {; Y+ p
- },[](){% G6 X$ `( K2 o* b, }9 m. ~- S
- HTTPUpload& upload = server.upload();/ j5 f2 s4 A N; z! N
- if(upload.status == UPLOAD_FILE_START){; s' Q) w3 D3 i: _/ I7 U
- Serial.setDebugOutput(true);2 K8 [7 ~' t+ ^5 v0 g9 C
- Serial.printf("Update: %s\n", upload.filename.c_str());4 m7 j ?" D, ^# L" N, l
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
0 l. x' A6 A: O. T8 P! }- H2 w - if(!Update.begin(maxSketchSpace)){
; x+ o4 R" Y( S0 l& R - Update.printError(Serial);
5 F; Z- E8 ~9 ?* F) U7 I - }
4 ~# \3 U" N4 v6 ^ D8 [ - } else if(upload.status == UPLOAD_FILE_WRITE){ k' Y$ Q8 d) d. d$ T f- B
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){6 U; g! N/ \4 P! s! k; L
- Update.printError(Serial);9 _# j5 m- {, {. x. f
- }4 O n" b) ~; u' }) o$ J- V
- } else if(upload.status == UPLOAD_FILE_END){
0 n* i3 w- g$ E- Q - if(Update.end(true)){1 Y* q: ~6 d9 z% N& n
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);# ^9 ]0 K' R' P: V2 C! ?6 ~
- } else {3 d8 ~' l# w5 S. F% C+ g6 |" B2 q
- Update.printError(Serial);( l8 t* w; O6 e4 w$ G
- }
# q) f4 k% ~/ v, d - Serial.setDebugOutput(false);
, L6 `. P$ x; k$ z$ [ - }
" _" B2 L, x6 R' k% F: s9 b' ? - yield();
* K6 T, P `. w. F - });
! y# O$ V5 O* a, r+ g) G -
" N w* t& \1 F% g - digitalWrite(2,0);# t" k, H! f5 ~$ P2 K
- mainAction();
6 q# L( l0 H! t' p& J" _ - if (digitalRead(0)){
1 Y+ j( u9 i8 N8 J - ESP.deepSleep(0);
5 k5 K& A) A% {$ c# \* h8 o, W! w5 I - } else {* z1 Z& @8 W6 z( G$ k* V+ t
- server.begin();5 k3 I6 P& |4 S0 g' {. k3 W
- }
* t8 a/ i0 y6 @/ Q$ d- Z - }& H6 m2 P5 k u0 ? H
- void loop() {
) Q2 a) ?, _+ `1 l/ } - server.handleClient();
6 R3 @+ L! F# L/ ~8 C - delay(1);
4 a3 f. y. S( q4 k - }, ` [ [: H$ ~1 z1 S. `
- String doGet(String url){! A) N6 K& O: r1 r$ E
- if ((WiFiMulti.run() == WL_CONNECTED)) {% z% N. o7 ^3 X3 N* n
- HTTPClient http;' f( ?* R: X# M
- Serial.println("[HTTP] begin...");
7 h- m, D; R: t0 u) m6 n - if (url.startsWith("https")) {( m0 O8 L7 P# n
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
2 E/ a1 c& R* S" `8 ~! q1 b - } else {
5 C V1 w$ \* l, I* n9 q: c# j6 N" W - http.begin(url);1 e- [! U5 s9 M$ j8 `2 x
- }
6 }; g6 o4 @7 Q% B2 g5 \% K% ~ - Serial.println("[HTTP] GET...");6 y9 V5 F* ]1 ~1 I* c$ M7 h
- int httpCode = http.GET(); q6 } O) e7 r7 _
- if (httpCode > 0) {
; L2 ^6 | V; d# c. b4 i0 U - Serial.printf("[HTTP] code: %d\n", httpCode);/ |$ m1 h" x5 F. b, c0 r5 c5 n7 i# v
- if (httpCode == HTTP_CODE_OK) {9 k# }) a$ q: t% n& }0 Q! I
- String payload = http.getString();
6 {* q: t7 B/ U* W, T - Serial.println(payload);7 m2 A( G0 I* ?8 _: b* [& @6 _9 h
- Serial.print("\r\n");
5 N, |5 J- l! I' s" ?" \! W - return payload;) S1 S) e* i+ I" U
- }6 ]# B8 Q1 n7 j" N- Z
- } else {
4 x4 d& J4 A8 i: _' f: d - Serial.printf("[HTTP] GET... failed, error: %s\n",
: L$ M' {9 v. a4 w5 s - http.errorToString(httpCode).c_str());- {, x" s$ a/ D9 q
- }
: U$ c0 L7 Q% k" t% v2 v+ N - http.end();0 X& H, g3 T$ |4 m# T5 j& C
- return ""; T# ^" D7 t- n! K7 X
- }3 @/ Z7 I* G! [, q3 `
- }
, D0 M& M/ \ f+ W - void mainAction() {
1 l# @8 Q/ d: r$ O/ e - // 发送请求
& V+ |& v! f! S& Y - doGet("http://google.cn");
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