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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)5 ^2 y5 Z6 y3 {
- #include <ESP8266HTTPClient.h>
! q/ `7 J; f" V: u; X B- f, y- s - #include <ESP8266WiFi.h>) E2 M. {, N. I) S6 _
- #include <ESP8266WiFiMulti.h>
* h4 d! i) E$ D% J, w- L, r1 _ - #include <ESP8266WebServer.h>" [' K6 d5 P. U# d7 u3 s- Q
- #include <arduino.h>
: Y2 D; t" l- x' r* } - ESP8266WiFiMulti WiFiMulti;
8 H( ?9 U& M" ^ - ESP8266WebServer server(80);9 r6 v/ }3 ] R7 y l
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
& S- u" Q S$ a) j4 U - ADC_MODE(ADC_VCC);
: |6 l7 S* H; L1 [6 v - void setup() {
8 K/ {& F$ w- a" E0 i! ?7 _; L - Serial.begin(115200);
, b1 S' n" w% C# Q* x# C+ Q; ~ - Serial.print("\r\n\n");
7 x; ?8 _8 I$ n5 e - pinMode(2,OUTPUT);
& m( A# A' t, U- c* [* _+ C- Q - // WIFI0 t7 e0 L6 n! Q2 K% R) f+ j
- WiFi.mode(WIFI_STA);5 K2 m# v3 R3 L9 {2 f. s
- WiFi.hostname("Sparkle");3 {) Q' x9 e& C* O, O
- WiFiMulti.addAP("wifi ssid", "wifi password");. x; s6 ]% ]- U) j5 }7 m
- int tryNum = 15;9 U/ ?* j* f+ `$ q4 k; [# ?/ H
- Serial.print("Connect WiFi");$ k* j. ] P. g, t: p9 z2 k( p) g
- while (WiFiMulti.run() != WL_CONNECTED) {
3 P$ Q9 J0 w7 ]1 C7 W8 i - digitalWrite(2,0);/ D( {5 s- c( o1 @. }0 A# W
- delay(200);8 ]( ?4 F' t/ H5 m: j
- digitalWrite(2,1);
; a: S# u1 T% G, ^ - delay(300);
* I: }4 W- ~* j. m" n$ D - Serial.print(".");( \( c: W) ~1 u% Z$ D6 I
- tryNum--;
5 H+ `- a' E6 |! h3 P - if (tryNum == 0) {
c' T: d% s. b( |% W0 W - // 1min
% F, P# u6 X- g" P6 G) c( E - // ESP.deepSleep(60e6);, c9 L/ r1 {9 `& X ]; s
- ESP.deepSleep(0);2 l: { O3 F0 ?
- }1 X; |- b* N) n5 a' G5 g
- }% c; z/ O7 `4 E/ r2 A. I) c3 F
- Serial.print("\r\n");7 G: t3 l* k @+ Q6 Z ?
- digitalWrite(2,1);
' y2 R4 y. |2 ]+ r - Serial.print("IP address : ");1 l8 T) U2 ^3 ~3 h0 [: _" X! j
- Serial.println(WiFi.localIP());
' @. e ^( P B z6 f, r B" G - server.on("/", HTTP_GET, [](){
6 s" j8 j, C5 Y* h5 g$ {2 V2 N( e - server.sendHeader("Connection", "close");
- |1 S& {7 ~$ d7 B - server.send(200, "text/html", serverIndex);" o/ g, j! e/ w' g
- });/ g+ N$ n4 o! [, p
- server.on("/update", HTTP_POST, [](){3 N# g3 u9 ?% n2 r8 Y1 P0 A6 d
- server.sendHeader("Connection", "close");
8 ?7 z7 ]0 ?! _$ l5 z - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
. }, I) A( p8 o# O/ i3 O4 F - ESP.restart();
2 o: _& J7 J+ X. T2 Z - },[](){/ w) D, Z4 S8 r* T4 c9 S
- HTTPUpload& upload = server.upload();( u0 f) L5 J) M: I! |3 B7 a
- if(upload.status == UPLOAD_FILE_START){3 W$ a% O: a0 l) V% C4 x6 q
- Serial.setDebugOutput(true);4 q' @" V7 I7 m) g# o
- Serial.printf("Update: %s\n", upload.filename.c_str());- o9 \/ h5 f$ x% Q
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
/ B3 n& ]8 l8 m - if(!Update.begin(maxSketchSpace)){0 r3 B( t3 c# Y1 {
- Update.printError(Serial);
( w- k- K' s1 n( m% m0 F0 g3 g - }
7 }) h2 a7 m/ _0 r - } else if(upload.status == UPLOAD_FILE_WRITE){& U5 b0 ^) n0 t+ ~3 w; x
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
1 ]6 `: I! w) S! N - Update.printError(Serial);
$ e* [' A4 Y) R$ B, S: Q - }
3 o- h. S/ L7 F; _% p. Q - } else if(upload.status == UPLOAD_FILE_END){, o* w# D9 L8 |, h/ D; P* U* f
- if(Update.end(true)){
5 I9 V8 D6 t& s( W0 `$ D1 a - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);! z" K+ ^6 E/ G. G
- } else {" {$ ]; O# X. d/ W3 k, t
- Update.printError(Serial);5 U* \/ P0 D8 a
- }
' ^5 b9 P( Z+ L, O5 d - Serial.setDebugOutput(false);
' ^7 V; x# @6 A! t( N! D i' ~ - }9 ?/ L& P* f& ] z# Y, r! a* Z0 O, @
- yield();5 l- r5 F* Y& C F' I3 r, K
- });
8 ]0 O& s$ X# ?2 r9 D- ? - # T! M, h+ Y, x$ M F
- digitalWrite(2,0);
4 E$ W" `6 _0 @6 P* S6 ` - mainAction();6 `! c8 I$ M2 L& v
- if (digitalRead(0)){& z6 H' h1 S2 [. @3 ^2 q
- ESP.deepSleep(0);
* K* M! Z4 Y" p! T8 T" G0 \+ K2 s - } else {
3 r1 y& _! g' W- ]7 A - server.begin();
Z+ f# l) z5 I2 t9 { - }
`) e4 m, F6 K4 H/ a4 F - }
# Y8 j! x1 S% m4 I - void loop() {
- Y' b( k" `% h; o - server.handleClient();+ i1 F6 ?/ j! A$ `1 c
- delay(1);
! D/ L; b' U0 H" L - }1 M6 I. I6 }3 E+ V6 V
- String doGet(String url){
6 i! a9 [$ @: W - if ((WiFiMulti.run() == WL_CONNECTED)) {" v W3 B9 h+ U4 h
- HTTPClient http;
* m9 c7 E. d8 H; J/ w! K - Serial.println("[HTTP] begin...");2 X8 u/ C, e. O: X1 E
- if (url.startsWith("https")) {
0 D+ y9 p( }6 h o& X - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");& ]3 j0 Y& R- S# X+ ^3 f$ G' t1 }% |
- } else {4 a2 f, {8 y4 d
- http.begin(url);
4 _! `1 s/ _) p$ k0 |/ K - }! m. W* @- |/ p* ^
- Serial.println("[HTTP] GET...");
4 B$ k* w/ Q* b/ c- { - int httpCode = http.GET();
4 T5 T5 p/ d% s! `- A - if (httpCode > 0) {$ v. r6 L9 m# _
- Serial.printf("[HTTP] code: %d\n", httpCode);0 A1 O. I: V0 f: u# ~- \& n
- if (httpCode == HTTP_CODE_OK) {# M+ o3 }) r y( z
- String payload = http.getString();
4 J" y7 I: k B9 _6 W5 ~ - Serial.println(payload);
* [7 e) o% e6 y, J - Serial.print("\r\n");; T- n, Q+ f# T& N" B- v w+ r
- return payload;! |' |& }. \5 ?+ [7 \
- }
; Y0 q$ E* W q4 p# T - } else {
# C5 g) [+ a& ?) A; t, m/ e* X) Y - Serial.printf("[HTTP] GET... failed, error: %s\n",, S% K# M' Q( f, u
- http.errorToString(httpCode).c_str());
9 ?+ ^# G( x# V5 M4 l0 c2 ? - }
* K5 ~- ^0 r) c4 J5 p9 } - http.end();5 d+ m# F( ]/ v- W
- return "";
5 S7 P' D4 s, q2 @. X - }/ X& ]# L7 z( p9 A9 w; K
- }- Q5 B& z. V, p6 K/ q3 F
- void mainAction() {
3 i7 {0 ?' R- b8 W3 X - // 发送请求
* f; y1 H1 t2 V; V& f - doGet("http://google.cn");
. J* p# Y, X f - }, V3 | t# u" M; f- N) i; |" }! d+ Z
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