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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). W8 Q: |, e) X" w3 `
- #include <ESP8266HTTPClient.h>
7 m- i+ j# u2 d% C - #include <ESP8266WiFi.h>* G8 Y6 m3 H V
- #include <ESP8266WiFiMulti.h>" x5 m- [; i7 h% c# P7 i
- #include <ESP8266WebServer.h>+ B3 V* I6 ~8 c6 B
- #include <arduino.h>
1 h7 m, G6 z. G9 v/ T/ e; L" R - ESP8266WiFiMulti WiFiMulti;/ S) K9 Q6 z/ o/ r+ a
- ESP8266WebServer server(80);0 p4 }1 n5 H1 T# i m
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
/ I8 s3 G1 |/ h* G - ADC_MODE(ADC_VCC);
4 L2 X" x3 h8 X! d2 V. n. b7 [ - void setup() {
# w( }2 G& N) n& v9 e' S4 o - Serial.begin(115200);3 ?2 r. m/ Y; c1 W
- Serial.print("\r\n\n");( S* f0 ^ b; @8 t3 @( j- o- l
- pinMode(2,OUTPUT);2 {; l( J* y! e( R3 @0 A9 X
- // WIFI, e; A8 Z. i0 ~7 j
- WiFi.mode(WIFI_STA);
$ ~# b' H6 Q7 k4 e! x - WiFi.hostname("Sparkle");* p/ h' L! Y- m& |
- WiFiMulti.addAP("wifi ssid", "wifi password"); b2 D! ]1 W& k& W; C
- int tryNum = 15;
5 U: ^0 w: u; c9 G4 B% y7 L& I - Serial.print("Connect WiFi");8 s! `6 v: C x; h$ @/ f( v
- while (WiFiMulti.run() != WL_CONNECTED) {
* E3 D# C3 _ s( g, h& n% }7 e" s - digitalWrite(2,0);
4 q; N0 q; |/ o/ S7 R. \7 D! d - delay(200);
9 n) }, _" r" ^* \+ Y - digitalWrite(2,1);& B. i1 E- B- G" M9 q
- delay(300);) u; Z# ?: P/ \0 i ^7 n
- Serial.print(".");. G9 Q* |4 L2 b/ j, x2 }
- tryNum--;
2 U% I* ] x r* i5 r P( N - if (tryNum == 0) {
6 C* m; a [- A+ c' _0 e! J - // 1min
, W/ E/ r8 M! r" x. i - // ESP.deepSleep(60e6);
8 I# t# W; ?: `5 X* x" N" J, D - ESP.deepSleep(0);
; `; q& a$ c" @& G - }
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- Serial.print("\r\n");0 T) @% m7 l( J) ?- T' ^( f+ F1 r J
- digitalWrite(2,1);. c) ~- G3 B3 u# a* i
- Serial.print("IP address : ");
! u% l% e l2 Y6 y7 @9 z1 k0 N - Serial.println(WiFi.localIP());( A0 U5 K# c2 M
- server.on("/", HTTP_GET, [](){$ V0 p m% r* }& J- J3 |. B2 A
- server.sendHeader("Connection", "close");8 l( s- r. Q. ?, @5 e3 d, b
- server.send(200, "text/html", serverIndex);
+ A9 K; d$ w2 c7 t7 n4 t9 [ - });7 w8 B+ y6 Z6 T$ c' y
- server.on("/update", HTTP_POST, [](){, k% R5 G4 H& E2 k6 o" m
- server.sendHeader("Connection", "close");) K9 T% H$ u0 B5 e7 @+ A$ P) J# M
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
- i5 X( C$ m3 }9 C% @! ]! l - ESP.restart();: O. _; N; O! M9 }$ U) L h2 K! Y
- },[](){3 q3 k! t+ X. o9 Y( i* N
- HTTPUpload& upload = server.upload();
# V+ m( x8 X5 r& z/ \& R/ T4 s - if(upload.status == UPLOAD_FILE_START){" A: {( E) a8 F# D: ^2 ~. E
- Serial.setDebugOutput(true);
. Z, R; Z( m7 U3 D/ b - Serial.printf("Update: %s\n", upload.filename.c_str());9 F& l+ d7 s' K) S7 Q9 B
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;$ n- O! ^) I3 Y, k2 v# T3 \4 \
- if(!Update.begin(maxSketchSpace)){
) B% c$ q/ N* \: N# e. n1 [ - Update.printError(Serial);4 \) @# D7 Y, I9 E$ S( H/ D
- }
' x9 E. r |& O* r4 L: g4 K' Z8 Z - } else if(upload.status == UPLOAD_FILE_WRITE){
8 P6 j) W/ I, S. P/ ^ - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){* J; d$ H8 q1 Q) ?' n; }: Q4 `
- Update.printError(Serial);
' d- B. T1 L5 h4 ~6 e8 m - }5 F4 W- T# V6 `* a3 l
- } else if(upload.status == UPLOAD_FILE_END){; \. [* N9 B: T) }* q4 J6 t, @4 l
- if(Update.end(true)){8 q) [, M+ W4 Z
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);7 x5 F0 A; j/ Q. L. p
- } else {- x9 G! L2 F$ b; [3 A
- Update.printError(Serial);
8 t$ H! c* c; w% `! t - }0 P5 `3 W/ t: J) K' f x7 x6 H. H: {5 V
- Serial.setDebugOutput(false);
; _+ u' e" A6 i$ R% J - }; c1 O7 A: V) A" q* y
- yield();
3 B& o( C9 c& C- K. u2 ] - });; s. A7 K) Y: \6 _5 ~2 p
-
1 k4 ^' w0 c4 q( @6 d9 S# c, D; x - digitalWrite(2,0);
9 K: X8 E4 T6 G! U% `: ^7 L& l - mainAction();
^& U; f' m: h& m4 F- m - if (digitalRead(0)){& A" P9 v+ r- s7 f/ i6 e, T; R" R
- ESP.deepSleep(0);' H% p# Y* i7 f" R
- } else {2 V* }' m. w/ f7 g5 [; Q9 I7 i
- server.begin();
5 ^7 a( c7 h( T8 f* _) P - }
* f5 [# F' ]' g1 a* T% ?1 W - }
) p2 a9 H7 W5 c0 n, L - void loop() {4 l" X3 j: U7 M! ], Y
- server.handleClient();" ^5 T. A0 S% q8 H( b( c
- delay(1);. h+ g( D+ R' V. ?1 J$ h# M, {6 L
- }3 v# g' D: ?4 L* r- z+ R
- String doGet(String url){
- i6 f7 ^9 f% d - if ((WiFiMulti.run() == WL_CONNECTED)) {
9 U/ {% U! I* Q I p - HTTPClient http;
5 a4 z. S! Q( U1 k - Serial.println("[HTTP] begin...");# O) y. x2 K6 L
- if (url.startsWith("https")) {: X! \- B e( j/ [8 R; N5 ?/ m
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");, T' Y9 }% _1 v t
- } else {+ L0 H- i: K2 b( x& w9 s5 F
- http.begin(url);9 L# ~* i2 k) i! R
- }" \ ~; F' e$ d8 L# W# m
- Serial.println("[HTTP] GET...");
" e; L5 _& [1 I - int httpCode = http.GET();
1 U; P. U9 h) X! g+ A# F2 T, C* l - if (httpCode > 0) {
+ r- e9 q" W: p; g$ ~% B' H1 W - Serial.printf("[HTTP] code: %d\n", httpCode);
9 ~7 n5 i0 I- j0 S6 } - if (httpCode == HTTP_CODE_OK) {
% `+ \+ B; f( M f - String payload = http.getString();
# B( J- v" ^ }" \; \) p - Serial.println(payload);& M# @6 O# {1 \# f3 a) v5 S! j
- Serial.print("\r\n");
7 l2 h2 G4 _) m$ l* m x - return payload;
: Z5 ?5 K+ ?: B+ L* { L - }# s! K+ l! W, |4 Z6 w
- } else {( ~" x. |& y, ?! P; K) [
- Serial.printf("[HTTP] GET... failed, error: %s\n",9 V: [! F( Q7 n! w+ w( e# d
- http.errorToString(httpCode).c_str());
1 D3 d, `4 O1 ~7 o! l" j - }
4 e7 j' R( G4 R7 h - http.end();
. z& u! \/ V/ ]" Y, d - return "";
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- }- C9 v& F; j r' c3 a( ]; I4 d
- void mainAction() {; c' O3 M* n& m( \4 n8 j' g
- // 发送请求
1 F0 [9 y! h( w4 {/ _ - doGet("http://google.cn");+ j9 B9 y, }+ _7 p' G
- }+ k4 w3 K: E/ Z3 s4 N# q4 G+ ^
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