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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)
$ Z9 O+ {2 O( T" Q! o+ ~6 E- #include <ESP8266HTTPClient.h>+ {* K. ?, T* ]* I
- #include <ESP8266WiFi.h>: u% N# }6 k* A; v# ]# P d
- #include <ESP8266WiFiMulti.h>" d) g) K/ a; Q7 _0 j4 l
- #include <ESP8266WebServer.h>
3 m6 I( }3 y! W0 u - #include <arduino.h>" ?/ H; }7 I. f, G) k+ R0 g
- ESP8266WiFiMulti WiFiMulti;
' {$ J; @1 D" C0 X. v; @7 u$ o - ESP8266WebServer server(80);1 \; T" d0 y' A8 l9 ]
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
4 ?4 k1 p: z7 C/ ]% A; y - ADC_MODE(ADC_VCC);* ~; b! ]7 h) s- e; F
- void setup() {
0 ]- Q1 M* [$ p. @6 \3 \/ R' ? - Serial.begin(115200);
, e6 e. I9 \' r. C - Serial.print("\r\n\n");+ P" l6 H- u5 [. L. X0 U
- pinMode(2,OUTPUT);( R2 ^9 h/ n |2 n" g: S0 E
- // WIFI
* P9 z8 o) @& t3 t8 V0 s" m - WiFi.mode(WIFI_STA);
0 S6 V" C2 l3 e$ \5 O7 P1 [5 g6 w - WiFi.hostname("Sparkle");0 q) G4 o0 ?4 W
- WiFiMulti.addAP("wifi ssid", "wifi password");
9 A/ [* D9 u# Y9 Z - int tryNum = 15;
4 [: I' e( ~! ^( h }5 {7 i - Serial.print("Connect WiFi");
# ^0 L* o( j9 V% W0 H5 d% Z - while (WiFiMulti.run() != WL_CONNECTED) {# S4 {1 ?$ ^2 O+ I. L2 G
- digitalWrite(2,0);
% A6 Z" Y6 g9 c1 S! `" t$ W - delay(200);) X5 W( N; J6 m+ S. @+ Q# V
- digitalWrite(2,1);
% u" ?! \ I" d, N1 \2 y - delay(300); p4 V( ^4 T) S$ e5 S4 M
- Serial.print(".");5 Y% P. u- a( V4 Z% g5 @2 \3 Q2 D
- tryNum--;+ j! _, u% ?( H- s; l* X" o
- if (tryNum == 0) {
6 P$ R E* C* x: q/ {7 g6 E - // 1min
+ V: y0 C) v! R; r - // ESP.deepSleep(60e6);6 Q$ N1 }9 u1 v
- ESP.deepSleep(0);
$ n4 \8 O, R h4 x' J! M* Q - }
6 W$ d8 x/ ?4 ~, ]) D - }+ z+ i6 Y: W: T6 Q- e* ]( o
- Serial.print("\r\n");
: R( M8 Q2 r1 B4 X6 Q. F l0 d9 t - digitalWrite(2,1);$ i8 C; ^& y" M8 X( p C g
- Serial.print("IP address : ");/ H: ~2 _: j2 C% F# q$ y3 r
- Serial.println(WiFi.localIP());" y" p1 F& i- k, h' }: n* k8 B
- server.on("/", HTTP_GET, [](){4 r% J( _7 F+ A: d
- server.sendHeader("Connection", "close");" P0 a" y# [4 A+ y6 P0 G
- server.send(200, "text/html", serverIndex);9 h+ {8 c# h+ @& U' z/ A
- });% B T1 `. y! Z0 Z& B
- server.on("/update", HTTP_POST, [](){
0 N/ K& h, p+ n% q' q0 w. J6 H - server.sendHeader("Connection", "close");% D Y! x7 q, Q
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
* K6 ?% T2 d7 w+ U6 L% H) r! `7 b - ESP.restart();0 x( t5 P8 `2 ^
- },[](){
9 O! X: ~ v0 X# D* u, S+ J - HTTPUpload& upload = server.upload();' H7 h- o, E7 {) g; l7 ?' u4 ]
- if(upload.status == UPLOAD_FILE_START){
- n5 `. f! F( z - Serial.setDebugOutput(true);0 E/ i3 m8 B5 Y+ d3 s" d) |" h
- Serial.printf("Update: %s\n", upload.filename.c_str());/ o3 C6 X {9 B
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
4 z+ ]: j8 w. u3 A# s5 B - if(!Update.begin(maxSketchSpace)){
, \6 C$ j% o$ x3 W% I: A7 w- B - Update.printError(Serial);
% S: j/ j. D7 B. I% y4 _ - }; {' T: p" B1 X0 @( I
- } else if(upload.status == UPLOAD_FILE_WRITE){4 p+ Q4 K( t/ S" ^% H- S# H5 ^) f
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){6 i1 W- x* A' v% @& b1 ]
- Update.printError(Serial);7 L/ y' k+ g1 N
- }
5 w9 e# X# [7 V& X4 v* N - } else if(upload.status == UPLOAD_FILE_END){: J: z7 z$ U r0 {! |% W- p
- if(Update.end(true)){
" M2 Z8 T' X1 V- X Q) s+ x6 w- | - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);; U9 w$ t: E* h- J7 G: A
- } else {" U% ^3 r3 b4 H; O) f G- G+ c+ Z
- Update.printError(Serial);
. a' _) [' S. q; F. ^2 | - }- g; {& G6 i5 Z
- Serial.setDebugOutput(false);
7 B+ a. Q1 g' Z/ x1 O3 `1 o$ g - }
q4 o! x! ^1 _+ ~ N - yield();
& X. V0 X, ~! M5 M. `4 C. k9 ~ - });
4 c/ V# a0 X4 [' i - , H" d2 \/ q+ x3 h. c
- digitalWrite(2,0);4 Z& V6 ?5 D0 w) I' d* H: z
- mainAction();
; v. x1 Y( n/ L7 O( X5 U - if (digitalRead(0)){" V9 ]/ b7 v) n! z2 Z
- ESP.deepSleep(0);
) u. F6 m3 d2 T& |; q3 e3 x4 E - } else {
' n4 i2 {$ E$ P5 G. {4 _ - server.begin();2 P5 _, }, a4 H: t- Y
- }
0 b# J$ L8 g/ C+ {. j - }
2 P, q) w+ i# U+ O& C8 L- W - void loop() {, Z- y- V; p0 |9 H3 j# e' N3 X: B
- server.handleClient();
. ?# G( N8 V0 _. a# }* {+ K7 l0 ~+ V - delay(1);% V- ?& |3 s" }' U: R# ~
- }
& N$ j4 ^$ } |" {% O5 o5 g( E - String doGet(String url){$ J. M$ V% J* M `. Q8 ~( j
- if ((WiFiMulti.run() == WL_CONNECTED)) {
/ O4 g$ f7 x; h8 J - HTTPClient http;
4 s+ T% C. V/ `' F9 u* [3 W - Serial.println("[HTTP] begin...");7 x! F1 M6 Q2 L+ S$ \* X. a; a
- if (url.startsWith("https")) {
- ^& L$ A; x. N; B( I. ]. F2 J# z - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");' |; X, ^+ S1 y, L$ g! T8 e
- } else {
6 ~+ B9 O2 B P" f9 F6 z+ m4 x - http.begin(url);
' I" M6 D( Y+ Z0 K1 }" h - }
' _. d& Y6 f, g) Q2 a - Serial.println("[HTTP] GET...");" w! f6 Y' w# l" _* \
- int httpCode = http.GET();7 D5 A5 w; d7 h( }
- if (httpCode > 0) {; F/ n, x. ?1 }% j$ b( J
- Serial.printf("[HTTP] code: %d\n", httpCode);( o0 L5 \) c' R+ G6 o. I
- if (httpCode == HTTP_CODE_OK) {6 r3 ^; F+ p# V( H1 T
- String payload = http.getString();3 T) s# o0 R4 A& n! E6 x" C, f$ b
- Serial.println(payload);
/ F( u2 q+ Q, `! s - Serial.print("\r\n");
* n* y) I% V9 z7 Q - return payload;: e, ] U; ]% _
- }
( P1 p& T8 E4 G7 @! j% ] - } else {
$ S- \, i5 S& S8 U8 X) C - Serial.printf("[HTTP] GET... failed, error: %s\n",
. P7 ]1 X; D' _) x - http.errorToString(httpCode).c_str());7 s* O. x X* p7 S% A8 N0 u# r" u
- }
- f) X, {' p* Q4 l4 ~* t* J2 }; y2 E - http.end();+ ^" d; |- }# ]. L! a
- return "";' m: j' Y& Q. T6 E- F
- }
- r6 ]2 Y) v$ |* V - }
* V) m. \, S4 |. t. m - void mainAction() {2 F* H% l2 f4 ~2 g" |' q
- // 发送请求1 e' X6 P4 u P6 ?
- doGet("http://google.cn");3 s; }5 t& T j! x! b
- }& z: j4 N( R& m
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