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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): B' O6 I+ Q5 E, U$ z" K. ?
- #include <ESP8266HTTPClient.h>$ Y7 Q6 e6 j7 ]+ m, q# q2 V
- #include <ESP8266WiFi.h>( h$ g! w: Z$ x% U0 D( M" G( D) e
- #include <ESP8266WiFiMulti.h>/ u1 E) K0 J0 _7 i; }8 N# a
- #include <ESP8266WebServer.h> x6 z5 ]* @4 M% S( j w1 G
- #include <arduino.h>
' Y- R# j3 o' T8 \( @ - ESP8266WiFiMulti WiFiMulti;% x/ g+ D ~. c' e. h
- ESP8266WebServer server(80);
6 s) q: n F+ A0 ]8 G' ^# I8 t - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";- n S) T7 x* s
- ADC_MODE(ADC_VCC);6 V% @- V8 c. z2 K! M4 y
- void setup() {
4 w+ R( v& R: U% p - Serial.begin(115200);3 d! v( a% Q# e8 Q1 i- r
- Serial.print("\r\n\n");& c. O0 l# O% G, N9 B; g& A* [
- pinMode(2,OUTPUT);
, T) W$ N I# j$ K7 u# M; ? - // WIFI
2 G9 C. y: z! s% ^% Z - WiFi.mode(WIFI_STA);. `1 v% G+ o# \* J
- WiFi.hostname("Sparkle");
! J9 j" V7 Z7 T$ t" b - WiFiMulti.addAP("wifi ssid", "wifi password");: X+ s" B+ ^* k- j
- int tryNum = 15;
/ ?+ @3 V8 d( Y3 e. ^0 Q9 C2 I# I - Serial.print("Connect WiFi");
: _) f0 a, d- R# h4 T: A k - while (WiFiMulti.run() != WL_CONNECTED) {
- L6 Q. P$ f3 b/ N' r$ j" t; n - digitalWrite(2,0);
" y/ ~& u \7 m6 s L - delay(200);) f: R3 m: M6 K9 z3 e- e
- digitalWrite(2,1);. Z4 O3 x8 @0 F! A: D7 G) G
- delay(300); Q1 R$ U! ?) g0 V6 J
- Serial.print(".");% C, V% }2 R i3 Z5 @7 s9 E& r
- tryNum--;
. f0 P1 Y& D. U& s - if (tryNum == 0) {
a( @+ y) N7 F/ T u - // 1min) w# w2 x" o, r+ o
- // ESP.deepSleep(60e6);
) [! ~; G* v3 ^! \/ K4 F/ f! q - ESP.deepSleep(0);
4 o W+ L! Z" E/ V8 h( q7 T2 S - }
2 D5 f% C# R4 g - }, ?: O+ F1 L! f2 B
- Serial.print("\r\n");
$ ]) \6 G* a2 B; `0 F - digitalWrite(2,1);
: t1 z* }9 Y/ M - Serial.print("IP address : ");
0 @! V6 a8 [! w; i) C2 V" s - Serial.println(WiFi.localIP());( A' @9 \7 L" r. z: p
- server.on("/", HTTP_GET, [](){) R; H& n( Z* }9 H8 X! q3 J( w- O
- server.sendHeader("Connection", "close");1 n1 }: i/ X, `- J$ V
- server.send(200, "text/html", serverIndex);; }3 o8 P: ]* G& ?+ L' X! x
- });
' g+ A* `- b. G3 i/ v - server.on("/update", HTTP_POST, [](){8 A+ p# V& ?: U& x
- server.sendHeader("Connection", "close");
5 c; M6 X8 z( }& d- ~( t* l - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
0 v8 [1 h1 b2 t0 A+ f6 y# _ - ESP.restart();
" m* ~0 T* y* W: A1 Z) ?7 @3 ` - },[](){
% @& ]' A+ ~, U( N! z% D - HTTPUpload& upload = server.upload();' Q9 _( c9 q" V" O
- if(upload.status == UPLOAD_FILE_START){* Q( {3 C7 o( J9 S
- Serial.setDebugOutput(true);; y0 p u* M7 @4 x6 n
- Serial.printf("Update: %s\n", upload.filename.c_str());
) d9 u+ h/ F/ w - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;8 m# L! c, W( C1 e) v3 j
- if(!Update.begin(maxSketchSpace)){4 }$ {4 B: K( h& H% @- Q, X4 Z
- Update.printError(Serial);
0 e( H p" i7 Q2 E1 g7 U3 G - }" I7 z% J2 u, ?' C
- } else if(upload.status == UPLOAD_FILE_WRITE){
! z' v* m3 @5 ~% A - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
' X" P" y6 U$ S* k- W0 k/ Y - Update.printError(Serial);. d3 b s3 o4 n- }" N) j
- }
w" O2 X3 V1 i( d: r9 \+ R) S - } else if(upload.status == UPLOAD_FILE_END){
e6 q" G& H: q6 ^. z4 [ - if(Update.end(true)){
5 W% N8 R* p( j7 j7 |: a. ^ e C) E# z - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
/ B% X, k# m* C5 H- D9 W! O( y4 X - } else {
* q7 ]3 [4 I7 E7 v - Update.printError(Serial);2 F1 W* q" ?8 o8 x- k
- }
1 t E N& G* z: @- E3 R - Serial.setDebugOutput(false);- ]' }* u0 z* e
- }1 i. A7 ?* Z! m$ H3 O
- yield();
# @- Y i' ~2 [* E4 ^$ \/ S - });0 b) l9 |! H8 ?& P
- / V* S* O: j# i7 `( K
- digitalWrite(2,0);+ }# k4 M5 N1 l: V1 N9 y
- mainAction();
% F% S$ N( w. N: C+ T - if (digitalRead(0)){$ M( \" ?; V0 @5 a0 v) E" o- y
- ESP.deepSleep(0);
; h+ m9 w# ]( p0 @- O% Z% Y - } else {9 ]6 l1 B5 r6 g, i
- server.begin();
% b6 _: |: u: [3 Y7 [7 k - }1 t- b; Q% u6 o7 u) S$ `8 l8 T
- }
( _1 i" r, b% n+ ^; b - void loop() {
+ Z; g! d% R8 A; w - server.handleClient();& V( R. [8 N! o5 S
- delay(1);
' q8 l7 G" Y8 e4 H2 P) A3 L0 q - }8 M& V2 J$ C* l- q! {4 }
- String doGet(String url){
! K$ M6 W! m0 K% T$ h - if ((WiFiMulti.run() == WL_CONNECTED)) {, M9 `' ]% t4 L9 k( i" p
- HTTPClient http;
* N1 R% f# Z R# `+ M6 B - Serial.println("[HTTP] begin...");
# a3 r2 A0 v1 `+ ] - if (url.startsWith("https")) {
& T: C7 M+ O Q6 O' A+ C - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
1 p' p, F5 x8 D1 F - } else {
# d9 D1 o7 j" `( d - http.begin(url);1 ` h' A/ a6 W5 K2 V
- }
, Q! c; X+ S ~4 L. Q - Serial.println("[HTTP] GET...");9 Z/ q P; L% F
- int httpCode = http.GET();
" m4 d/ f! K: o; W - if (httpCode > 0) {' u2 W" i; f: t
- Serial.printf("[HTTP] code: %d\n", httpCode);
! x3 U( z7 E$ @# F+ h! k - if (httpCode == HTTP_CODE_OK) {" ^ j$ u2 B6 O! e4 O! V# j0 m
- String payload = http.getString();2 R/ `6 J. B% a+ @
- Serial.println(payload);
0 O% ?# A+ ?+ R6 d' c - Serial.print("\r\n");
, b) H4 M3 A( E+ ?, }$ e; S - return payload;* ^; c+ R' W- X8 R- o
- }
0 Y: ~7 n& r- h- w7 ?. A - } else {
g& i2 y: t0 m- g - Serial.printf("[HTTP] GET... failed, error: %s\n",
1 m3 a5 @9 i3 d) B9 ~! V% { - http.errorToString(httpCode).c_str());5 l* R% u$ {( ^' |. w. T2 Q+ ^
- }7 {% W* E) D" d W" o
- http.end();) y& n8 O) J% D, c' |+ s
- return ""; J0 O# `) d5 R4 u1 O
- }( ^) k" l" @% {; t2 Q1 Y' z1 [
- }
4 ?: x* M8 m4 P8 D( Z4 N* t; y - void mainAction() {
5 x3 D5 Q: s; ?# @ - // 发送请求# {1 Z. N c- \
- doGet("http://google.cn");/ v- S3 Q" N% {) j. a$ e9 y
- }
* \5 H K- x0 Q0 ^4 ]% k4 X
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