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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)# E. ]4 ?! W. _" R' Y5 Y9 F" T& Y
- #include <ESP8266HTTPClient.h>
! H9 g7 g6 U. k9 B" V9 D - #include <ESP8266WiFi.h>5 p: U- a1 M+ i. e
- #include <ESP8266WiFiMulti.h>0 S W5 r5 `2 U
- #include <ESP8266WebServer.h># G a8 Y# b6 e) l# Y
- #include <arduino.h>
' P5 n0 ~% r$ A2 K$ y - ESP8266WiFiMulti WiFiMulti;# \, S* \, ~+ ` J6 [4 W
- ESP8266WebServer server(80);% K% U( g0 K( a! Q
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
* Q4 g" O4 ~; t2 W9 n- H& ^ - ADC_MODE(ADC_VCC);
! ]5 g$ v) d& R - void setup() {# o9 k D8 e4 f1 y
- Serial.begin(115200);
* K4 R$ ~8 _/ n7 _- o" x, a1 X4 k2 K - Serial.print("\r\n\n");
& b% w- |6 J- u$ U5 L2 d - pinMode(2,OUTPUT);
/ P5 s2 R, z) u; [2 j8 S - // WIFI
# a/ I: @# V* l- e6 W$ d - WiFi.mode(WIFI_STA);
0 }$ C) Q( ^4 c. K - WiFi.hostname("Sparkle");
# \& I9 x2 `8 @$ `( Z - WiFiMulti.addAP("wifi ssid", "wifi password");
1 D, n% m9 _- Q) I - int tryNum = 15;% i; e1 @4 C& p( a% K4 i
- Serial.print("Connect WiFi");, G; Q& f3 p" b& x0 ~, ^
- while (WiFiMulti.run() != WL_CONNECTED) {
+ Z3 ?6 w- f" w/ M; E& Z1 |$ O& { - digitalWrite(2,0);
, M7 G1 J5 ^& G0 g9 X+ ?! d P$ _& V - delay(200);3 Y1 v' H; y$ b3 C# s8 G- w- [# v
- digitalWrite(2,1);# a( l! Z: m0 J) p
- delay(300);
5 _; v/ |" T# H8 o# p - Serial.print(".");
3 A7 u. g8 v# r1 C ^. ?6 w - tryNum--;( o7 `! O2 `0 B- M% ~, W
- if (tryNum == 0) {
( t5 ~) I2 `, w1 N% X/ G! o - // 1min
$ c$ g3 N/ P& l3 I4 A* ? - // ESP.deepSleep(60e6);
" N$ {" T. U* l( C, i1 W - ESP.deepSleep(0);
! Z5 E5 l+ ~* `" R: _8 | - }1 j* L7 t' {% ~6 f4 N+ z) O* H
- }
* U# J7 `+ [+ M - Serial.print("\r\n");
8 \. d* B; L# ?) B+ H - digitalWrite(2,1);' u" K! k& ?" V
- Serial.print("IP address : ");
+ i& f( a2 Z3 d* A9 C4 V, \$ K - Serial.println(WiFi.localIP());$ R9 ]! c' f8 h% T6 w9 y
- server.on("/", HTTP_GET, [](){
3 {: J+ @! {5 ~! \+ \- w - server.sendHeader("Connection", "close");
( o( j/ O2 z: ^; x6 e5 l: J( X - server.send(200, "text/html", serverIndex);
6 ~+ X3 h% g* p+ t0 y - });: V* T- J( Y( P7 x3 W
- server.on("/update", HTTP_POST, [](){
& p: {4 A7 Z( m7 \+ r2 {% J) E - server.sendHeader("Connection", "close");
" E0 T% U4 S" C- l - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
6 }8 D5 L1 P5 I. s+ } - ESP.restart();
4 L& T& D6 I" p. ? D - },[](){
' b0 i9 Z# d" m# E& |0 c8 u! B - HTTPUpload& upload = server.upload();5 n1 ~( S( D! l9 p5 j p/ G) k) v" R6 O
- if(upload.status == UPLOAD_FILE_START){
+ D! i0 U( H/ y: K - Serial.setDebugOutput(true);
) K/ L/ ^+ b) @3 U) [2 X$ R - Serial.printf("Update: %s\n", upload.filename.c_str());
) J2 c: A/ Y$ D7 b - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;7 l3 H6 R+ s) o( ^$ x
- if(!Update.begin(maxSketchSpace)){% Y' H* v7 i& m! S# y0 t- U
- Update.printError(Serial);
" U4 `/ f3 r- V+ B$ `0 ? - }
* y) d4 J: c/ A9 l; n - } else if(upload.status == UPLOAD_FILE_WRITE){
. ?! f5 M* q; U0 U2 f7 f) e - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
; r# T' h F8 O, s0 L3 |& d - Update.printError(Serial);* R) z7 l: _' u
- }. v% L: r; ?7 G( ^+ f0 P+ g, E; B4 E
- } else if(upload.status == UPLOAD_FILE_END){+ m! `) K& v. j. X! B$ z1 H
- if(Update.end(true)){' t! ^; Z) j" }% P' ]
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
7 V: Q9 n, P; ?! d. x - } else {+ G# b* \4 g% R& M& D+ B
- Update.printError(Serial);
4 v$ O4 L3 l$ i3 t% \5 E - }
- c2 h, w6 N! ^/ P - Serial.setDebugOutput(false);
5 `# O4 s% P9 z: I% u+ z' W' l! F* N - }5 }- X: K* w1 V! [: x9 X }
- yield();
* P Q' }7 x( _( s6 K# U$ V - });
5 b7 {! ~6 N' q8 o" s+ P! Q+ F8 c -
" q# Y4 m5 t$ f6 d2 O# q - digitalWrite(2,0);
" \: T/ u: I" F+ n - mainAction();, z/ d$ N; `. Z1 V/ J
- if (digitalRead(0)){: r4 Z: {( n+ A; t! E: u" u# Y
- ESP.deepSleep(0);5 F! H5 B( F0 y
- } else {
1 T% P$ {/ ]3 I% b0 A - server.begin();
$ T0 ?+ T5 a! z- W - }
8 b4 j- L& u5 ^, i - }
- z6 D# `+ n$ ?& j2 w1 S - void loop() {1 ^7 ^" J& P8 Y4 X$ ^3 v f
- server.handleClient();2 q7 Z- g! ^% s
- delay(1);
5 p! q9 I+ C& U$ V/ s - }
/ Q2 R6 U: j% [# L K. W9 N - String doGet(String url){* z" [$ ^) r) E; _: p4 H
- if ((WiFiMulti.run() == WL_CONNECTED)) {+ }$ Q: g- e4 Z, i# C8 \) R
- HTTPClient http;
# M) r% `& s6 V% Q( b2 _* N/ [ - Serial.println("[HTTP] begin...");, z# F( E( e3 V, t9 H8 w
- if (url.startsWith("https")) {
$ I& p* n8 k, x* S' l - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
. Z4 u: f# O: ]# K) V8 @9 i7 t; ` - } else {5 {/ b5 p) U3 y
- http.begin(url);! _- ], p% {- }$ v) s
- }
6 B/ S' |' Y: ?& g' g - Serial.println("[HTTP] GET...");
, p" }! R/ \ `, @# ? - int httpCode = http.GET();1 {1 j# x: \8 T) G5 B
- if (httpCode > 0) {- q( y; z- _2 N5 S
- Serial.printf("[HTTP] code: %d\n", httpCode);' D, J. h' P7 @: F$ k" n! Y1 }
- if (httpCode == HTTP_CODE_OK) {" E: }) o: I+ v }0 |: [* ^2 y8 H
- String payload = http.getString();
( S6 l! {6 M- J! F7 c - Serial.println(payload);8 t1 l5 d8 g$ x/ f+ Q
- Serial.print("\r\n");
2 D Y" l7 P9 ~) ? - return payload;
$ w! I5 W6 Q- O2 q: @+ B( f% K/ i1 m - }
( S# I& D1 R1 ~6 H6 ?- ` - } else {
6 Q8 ^$ J" k& A7 D: i2 l! v! | - Serial.printf("[HTTP] GET... failed, error: %s\n",
3 N: _6 J4 Z. X - http.errorToString(httpCode).c_str());" v6 G& |" W' _4 J
- }! E2 W$ h2 a( U3 w! ^" a, U
- http.end();) ^5 u8 k. B) {$ W$ E4 p# K
- return "";
" V# Z! |' k5 g; Q8 b5 i' x; N+ V - }2 n: r4 G3 k, \: T) I
- }
1 K! b& ]: y2 C+ ^ - void mainAction() {
6 k j# h2 v7 c: V& u - // 发送请求
' y" s# R* j! ~- O - doGet("http://google.cn");8 x5 O. D( \6 g% C0 d# H0 v& j, |7 F
- }
6 N0 ~6 X+ k1 l r/ ~7 c8 r" _
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