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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)" w: F/ h" k! B
- #include <ESP8266HTTPClient.h>
( V$ a$ V' x+ W - #include <ESP8266WiFi.h>* V7 ^1 Z7 B4 a6 f+ B
- #include <ESP8266WiFiMulti.h>2 X* |' m7 B$ G4 D7 o9 D
- #include <ESP8266WebServer.h>
* r9 z0 w) v$ `( y1 z - #include <arduino.h>( A. e6 H& ?$ Y& F
- ESP8266WiFiMulti WiFiMulti;8 A: \ e$ I3 u# Y8 P m6 \
- ESP8266WebServer server(80);
! Q7 w1 @- L) Z; U& y3 t; q - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";' w3 D1 x: c5 V
- ADC_MODE(ADC_VCC);
* N2 L3 K# X N - void setup() {
7 l9 y. G, f0 z+ r) ?/ i4 z - Serial.begin(115200);
- ~1 w! r5 O% o; J - Serial.print("\r\n\n");
) I) \ I( d8 ^. R/ V$ `0 ] - pinMode(2,OUTPUT);
9 ]' M" v. d9 C0 X( b - // WIFI
8 A \ e& S; ~5 I; l) A - WiFi.mode(WIFI_STA);
* m4 G' M$ O1 _+ ?6 N - WiFi.hostname("Sparkle");
2 e | V' S3 [0 f; e - WiFiMulti.addAP("wifi ssid", "wifi password");
% E' o ]9 V- h: A6 {$ C- I, } - int tryNum = 15;2 J f- }* d+ P# e, Q0 B5 b9 ~# u- G
- Serial.print("Connect WiFi");1 Z4 s+ T( [. E% `0 Y
- while (WiFiMulti.run() != WL_CONNECTED) {/ \1 z! j; y% h0 L# j: p2 ]
- digitalWrite(2,0);$ t3 h+ X) n3 ], q: i
- delay(200);
1 z* e; h3 y( t( ^( N) }" o8 A - digitalWrite(2,1);
' \6 y2 |, J0 p3 C2 x - delay(300);
8 j# E% b, N) a - Serial.print(".");: A4 x4 Y3 F9 i2 H
- tryNum--;
8 M8 Y3 c3 ^6 p+ T7 c" P0 E - if (tryNum == 0) {" u# ~* C# m! l U- G9 y' }0 [
- // 1min3 u0 |( H. S0 o2 v2 X' n7 G3 s
- // ESP.deepSleep(60e6);/ U1 e! J/ w# y" p6 Z- T5 y
- ESP.deepSleep(0);+ ~4 n& @9 a+ t1 k: d
- }
! y X+ q' a' P0 o; W. t - }+ N- E, O& `. g0 D
- Serial.print("\r\n");
0 K5 `% @2 b0 Y- l - digitalWrite(2,1);
. N. u/ y6 ]: g0 V& J - Serial.print("IP address : ");$ l) ]1 f7 b1 x r9 _6 O5 Y9 {* f; r$ s
- Serial.println(WiFi.localIP());! Q9 q: e! J: c) A8 L( S
- server.on("/", HTTP_GET, [](){
( g7 H* E3 ` b6 y- P - server.sendHeader("Connection", "close");3 y# n$ N/ B# Z& m1 x3 V, a- S
- server.send(200, "text/html", serverIndex);) S3 d7 V; U' M. r: a& w6 l1 _
- });
i D b: _+ \4 O3 V - server.on("/update", HTTP_POST, [](){2 I( `7 _( {' R5 W" ~
- server.sendHeader("Connection", "close");) D) E% o; y0 E" f& w) e! ?
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");0 b8 R, I' e9 n. }. a
- ESP.restart();5 v$ P& @5 l% w, u
- },[](){
+ }& k a. S/ ?& H6 s2 M6 D - HTTPUpload& upload = server.upload();
& b& W3 M7 E' u( p, E6 r/ e - if(upload.status == UPLOAD_FILE_START){
3 J1 E' Z5 ]' u& X9 m! m - Serial.setDebugOutput(true);4 ^5 g. P* e9 C, I% E
- Serial.printf("Update: %s\n", upload.filename.c_str());
2 u; U$ t& H; z - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
4 j$ `+ w* J9 j( u' p - if(!Update.begin(maxSketchSpace)){
o1 n) T6 O( J7 z/ L$ n2 s' O - Update.printError(Serial);: q6 F; v" H1 G) i' Q9 h! {
- }2 N8 @0 I% T) J1 S" a, x4 t
- } else if(upload.status == UPLOAD_FILE_WRITE){. L/ _& Z" j$ s, w z# ^2 ~% Z% s
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
- S$ C1 u5 _. v; O+ {' ^2 z - Update.printError(Serial);: V R+ x4 l( z0 f$ S
- }' \9 K3 j; `' G5 |$ u
- } else if(upload.status == UPLOAD_FILE_END){! o: U. k% C4 k- c- P
- if(Update.end(true)){5 L% z' c I3 g5 J6 J5 H
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);% I6 o) l9 `0 K1 H. I7 B3 V5 B5 U3 i
- } else {+ z1 ?. R& g2 H; x2 P9 |" W
- Update.printError(Serial);
; h. A/ o! U( Q2 T1 E; T+ S4 u - }* T/ F, S2 b. i0 \9 D5 c8 k* o' `
- Serial.setDebugOutput(false);
1 e, T7 i! x& ~/ G/ S* _ - }
" b6 y8 b% g* h# C - yield();
5 f( S* Z; x p8 f9 z - });
* E! ~# Z: s: s) E5 E& ^ -
+ g& w2 b1 E# @5 K6 z# S0 J - digitalWrite(2,0);/ {; |1 C. G* T2 v' q7 b a, n4 r: a
- mainAction();
2 T8 t W3 O1 o0 r4 N$ l' a - if (digitalRead(0)){
/ \+ G% w* U& K/ Y- \ - ESP.deepSleep(0);
2 @" z+ G+ \6 h - } else {
* t; |1 j: z) R - server.begin();% N6 u; Y1 ^: A6 m1 i- {# k
- }) ~6 _+ ^* D: P( B0 n0 v
- }
; X8 c+ g6 R, I& R6 Z - void loop() {, C+ C3 b6 V! ]" T" O: `6 ]9 y; v4 E8 v
- server.handleClient();
1 y5 E% D$ U# _, ? - delay(1);- c6 | l7 h- |$ p# Y+ K0 S
- }
1 }4 C9 U$ C! w! C - String doGet(String url){
% p- G+ `/ O, p# m4 x4 N: m1 M8 A& u - if ((WiFiMulti.run() == WL_CONNECTED)) {
8 g2 i2 e @4 R: t - HTTPClient http;6 V; f3 J+ J9 B2 z7 h3 z. x* h8 v
- Serial.println("[HTTP] begin...");3 ]5 E! [9 \- ^9 V" P, t# P
- if (url.startsWith("https")) {/ ^6 b& ~# d6 v: S8 z7 t
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38"); H2 j: h- C+ G7 g
- } else {
) U8 C# t- r* `( j" j2 H6 j# I - http.begin(url);; G ^1 k, p( ~! ^3 h0 ?: n# `
- }
' H1 C4 v; p0 M* N& S# j# P - Serial.println("[HTTP] GET...");; D/ A# j# L) T* w4 J
- int httpCode = http.GET();
' Y1 s7 Z7 A9 Z v2 @5 u% B- Y - if (httpCode > 0) {4 o, g i- u: N' |
- Serial.printf("[HTTP] code: %d\n", httpCode);
* I# K2 V) P2 Y3 f* u* e4 x# S/ } - if (httpCode == HTTP_CODE_OK) {5 t# v( D: a! t+ \& p( B( Y9 k
- String payload = http.getString();1 p" w% Z6 H. \: ?; W
- Serial.println(payload);
; {! ] _7 ^( x9 L# D1 A T - Serial.print("\r\n");
6 w h: t6 V0 R- M7 R2 E - return payload;* Y' D: H+ O+ j9 O# R3 Z& [
- }
6 T ]2 \, {* @ - } else {5 z/ L# |& K" c6 Z9 v* X
- Serial.printf("[HTTP] GET... failed, error: %s\n",
5 h5 J& Q9 ^8 [6 R" G - http.errorToString(httpCode).c_str());$ F. L( i6 x7 b7 W$ D
- }9 k$ i" Q4 r: l7 t/ t
- http.end();4 |. ~( z' o& q; h
- return "";
9 i0 B# X+ j$ h - }9 a0 ?3 N' a/ d; ?( _& l5 v
- }
! U5 {$ D" f( Z2 E6 C0 x - void mainAction() {
: a8 K- i- h1 @ N - // 发送请求
; B2 ]' R* }( k9 ~0 ]) v( c - doGet("http://google.cn");/ E0 Y) R9 B+ m7 }- m
- }
$ {4 h2 [( i# k! i
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