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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)
6 l' o, T# q! E# V- #include <ESP8266HTTPClient.h>
* {5 \" K( ^/ b5 { - #include <ESP8266WiFi.h>1 w g/ U. ~. ^( n5 ]" @% ?
- #include <ESP8266WiFiMulti.h>
7 f9 ], R/ g' A7 o. ^8 e+ v - #include <ESP8266WebServer.h>4 K) x1 @7 j3 |3 t$ z. [* {( D
- #include <arduino.h>) s! F8 k) N( h+ I5 a) n
- ESP8266WiFiMulti WiFiMulti;
. Q, X! d t! M; ]0 D( u - ESP8266WebServer server(80);
- Q+ p9 {* H+ y4 m - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
4 X8 U2 V2 u: s+ N4 m$ s. R% t0 c - ADC_MODE(ADC_VCC);# h; W8 G+ T- s9 Q! Q: _7 e
- void setup() {
$ D% X6 }( b0 L7 v - Serial.begin(115200);
; T7 X% i$ f5 m- X! K0 V& H - Serial.print("\r\n\n");3 b6 e9 c' K$ f& j E5 }
- pinMode(2,OUTPUT);
. R8 t9 M% U" Q$ x( C* {7 _8 y - // WIFI
d+ ^4 d3 \0 o& C2 J& j* ~ - WiFi.mode(WIFI_STA);! a* e' p4 A/ Y! W9 P
- WiFi.hostname("Sparkle");, f5 A( n& ?9 n8 ]! ?+ L9 ?
- WiFiMulti.addAP("wifi ssid", "wifi password");
+ A2 X. h( t4 w6 L R/ i' ?0 l - int tryNum = 15;
4 O1 {& E' L( m8 ~) s9 | { g - Serial.print("Connect WiFi");- ^" e; H# K; m% y6 M. ~( O1 K2 p
- while (WiFiMulti.run() != WL_CONNECTED) {
; i! } O1 B# R1 l9 q3 v+ i( U* w - digitalWrite(2,0);
+ H# _( A) |/ h6 Q - delay(200);
/ Z1 e# J3 U7 T2 V( o - digitalWrite(2,1);& U& Q2 N6 O% Q9 a ~3 C
- delay(300);
% G- c, _0 { i; i0 q( e6 v - Serial.print(".");7 p Z* N$ @/ ^/ v/ r( U2 r
- tryNum--;
4 e( \0 [5 P6 r: T; S0 u( ^ - if (tryNum == 0) {
0 E4 \. R, M: |( l2 A - // 1min
6 W$ }8 e$ t8 Z0 F - // ESP.deepSleep(60e6);2 B0 b+ [ K! L' @. n7 E; X
- ESP.deepSleep(0);0 r$ b2 j, M/ c, m) t
- }4 F- `% B- c, A1 `! f
- }2 \8 X# g5 x- j D8 E
- Serial.print("\r\n");8 j" Z( b1 |, H, v. S
- digitalWrite(2,1);
+ I( p9 j! Q: j) H& B& Q/ S - Serial.print("IP address : ");: Z+ X+ g5 ?/ e3 X: _4 @1 @
- Serial.println(WiFi.localIP());8 I6 i7 Y. R3 Z! a
- server.on("/", HTTP_GET, [](){1 K( Y/ C& C& `9 G/ E, x+ ]
- server.sendHeader("Connection", "close");
2 n ~, L( P/ k) a' D5 F - server.send(200, "text/html", serverIndex);: n" E6 q' ^3 i6 E
- });
s% G/ E' V% p3 B - server.on("/update", HTTP_POST, [](){, u5 z& s; U' }; d
- server.sendHeader("Connection", "close");) N( n$ L. A( l" }
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK"); S7 [5 k" }3 R' R; F8 y! j& g5 }; }
- ESP.restart();
% b* b- ]/ o+ N - },[](){5 \0 ~6 o% X$ A
- HTTPUpload& upload = server.upload(); y- f: `9 D7 V L) x f
- if(upload.status == UPLOAD_FILE_START){
/ b$ `- b* x, o; v+ o" `, d0 [ - Serial.setDebugOutput(true);! ?" B7 `7 c4 X+ y% }8 c
- Serial.printf("Update: %s\n", upload.filename.c_str());4 q% e' U) n, h% j J! d
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
: H! t4 q+ W( L# j - if(!Update.begin(maxSketchSpace)){+ |5 G8 ?, Y" ?6 J% T
- Update.printError(Serial);
f/ r5 ]& G9 m0 o5 T - }8 U) h5 K3 @9 q+ R H! B, b
- } else if(upload.status == UPLOAD_FILE_WRITE){0 R) d3 T! w' a8 A
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){; @) v9 ~' K* B- u
- Update.printError(Serial);
6 z" d$ i- V$ N3 y9 H2 d0 M5 R - }" ]1 R+ M9 K6 ], j/ |
- } else if(upload.status == UPLOAD_FILE_END){
. ]* ]8 C- C0 j' p- L/ A" u9 o - if(Update.end(true)){
/ O( P( ^# r% b4 |2 y% u) E) w - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);, T, l' L7 b' f _; x P h
- } else {
" Y% t6 Q3 t$ T% d# A; k - Update.printError(Serial);- r: y7 t, r( K) x" h# V
- }. [9 {9 o1 w4 N
- Serial.setDebugOutput(false);
, b m/ \/ e$ p% ^5 W) G& { - }. }7 C; i2 M5 E- i- ]6 H
- yield();
2 k" L6 T& s, G1 \ - });
: d/ j' d1 P" t* E& B' v2 L8 p - : ?$ D, G; }( N% ~% g% U+ y
- digitalWrite(2,0);
2 O* W) z5 K) ?8 {1 } - mainAction();4 A' Z/ _: J, S V8 o! `4 ^
- if (digitalRead(0)){6 h) @; Z. h. b; m
- ESP.deepSleep(0);
5 d0 X0 Q' n& ^1 y W+ j7 A - } else {% a$ i6 Y0 `7 F1 }7 y5 D7 P
- server.begin();& c% I: d. k0 c1 o* K- P. o$ `: Y
- }4 A0 o' U2 }6 U9 a
- }
) c# _4 p( r _9 E4 Y; V+ U6 _/ | - void loop() {! ^) N4 V3 ^( q
- server.handleClient();) m8 ~: U5 U. m
- delay(1);
! s! Y3 E( v# O - }
8 h% g- D1 D. M- o% v# G - String doGet(String url){
" y/ c, [# w$ M, Y - if ((WiFiMulti.run() == WL_CONNECTED)) {* w7 m6 {4 U1 n: L; X
- HTTPClient http;6 A5 K$ P3 |6 n
- Serial.println("[HTTP] begin...");# N8 g* N. n- r& M
- if (url.startsWith("https")) {9 e! ^/ J! I- {% J; I0 Y
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
. @' `% m% Q" v/ V* u7 T - } else {8 i' v, s' i. r# Q
- http.begin(url);- \: b( ~9 {: m! @9 e; K
- }( ~8 u7 N4 c# b& h
- Serial.println("[HTTP] GET...");0 h$ X# j' u: D; x7 T; E
- int httpCode = http.GET();
: k- m% N) l9 H/ `4 F5 U# f3 Z - if (httpCode > 0) {
3 E7 v: s `; @9 R1 M# C - Serial.printf("[HTTP] code: %d\n", httpCode);4 K+ h. q3 ~( r: m' ]: W
- if (httpCode == HTTP_CODE_OK) {
E9 _1 y+ r5 x2 J9 D( E0 H3 D. h - String payload = http.getString();
) x8 x r0 }/ F/ K! d2 y5 P& a - Serial.println(payload);
$ b6 d: t% u" w; K' F( l5 M# j - Serial.print("\r\n");4 G. s$ ?$ G# m+ ~
- return payload;
+ H* b. I, r" `% {3 _. U% B - }
+ R. L5 i5 x! k - } else {
6 S+ [ h& b7 b' j9 `( k+ s. S0 M - Serial.printf("[HTTP] GET... failed, error: %s\n",
: L) v0 y4 y$ R; D - http.errorToString(httpCode).c_str());4 k7 g) C4 J' ^3 q% n: s
- }1 p5 [# H3 X1 p( j" g8 ]
- http.end();
3 v4 p0 ^ r( S& q# F% U - return "";
) z* w8 k$ @6 ^% n2 B - }
9 d0 [9 D' {7 u5 z - }
0 l6 M! q3 N& } - void mainAction() {
9 O. f K/ b) j* Q; u) V - // 发送请求$ l* w) V: K. t
- doGet("http://google.cn");$ O- W: h; A' V6 K- F4 q
- }
7 \ G1 {, _; d
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