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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)8 s) _) g1 F+ r) N1 m, |5 y; p
- #include <ESP8266HTTPClient.h>
$ G8 r# z- }0 c# G W+ o8 ` - #include <ESP8266WiFi.h>, T. U3 E9 }8 [0 l2 u8 h0 H i
- #include <ESP8266WiFiMulti.h>4 Q) ^7 L8 V: K& U6 k3 n
- #include <ESP8266WebServer.h>
$ V0 x: r: `0 |+ s* v1 o - #include <arduino.h>
, x* X3 N6 ~- b9 a/ n+ } - ESP8266WiFiMulti WiFiMulti;
( B+ E6 Z) w5 T4 f; _ - ESP8266WebServer server(80);
- h- K- f# p( [8 I/ ?) V - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
& K& T4 s! B ]) ~' g - ADC_MODE(ADC_VCC);5 i& W6 @( S5 E- b1 w2 \- ^
- void setup() {# ^/ e* @) a! j; D- p2 p% i, z4 ?
- Serial.begin(115200);4 Y4 Y" _) G7 T, |# O
- Serial.print("\r\n\n");+ I. s" N8 b4 r8 G, z9 Y% {
- pinMode(2,OUTPUT);* e j# K8 ?1 X, F
- // WIFI
) s2 K$ |" B8 k) @3 \ - WiFi.mode(WIFI_STA);, X$ S* i1 i! N% \3 M/ C
- WiFi.hostname("Sparkle");; G! @' T' a: u' `' p; u8 ]3 ~
- WiFiMulti.addAP("wifi ssid", "wifi password");
6 M/ R! L9 b0 J( b+ l - int tryNum = 15;
3 X& N, U; q8 n( h+ \ - Serial.print("Connect WiFi");5 C& ^; b7 ]6 Z/ K/ X# o$ @4 Y8 y
- while (WiFiMulti.run() != WL_CONNECTED) {: I$ r3 L% b1 h( _0 _
- digitalWrite(2,0);
% r1 t, Q$ i, h8 b - delay(200);
4 m2 n0 n: N8 z$ u3 c) R8 A - digitalWrite(2,1);* e' M$ e/ ]7 g2 U$ o
- delay(300);
3 T' R3 i' d# `5 m2 o. T8 D - Serial.print(".");
5 H* P6 o2 {2 t4 m+ J' |, ~4 q- D4 V - tryNum--; K1 |# b- y9 f, e# E
- if (tryNum == 0) { ?: B* K; j; T" p: S5 b$ u
- // 1min
8 g7 \4 ?7 f3 V - // ESP.deepSleep(60e6);+ E, \ c0 F" L" E+ X& ?
- ESP.deepSleep(0);8 j9 ?5 c! M# ~5 ]
- }
, L/ o- g4 u2 ] - }
3 d- P; g/ g8 _) |9 K - Serial.print("\r\n");
* K' s5 D0 R1 c8 `3 g - digitalWrite(2,1);3 M+ S2 ]% Y; l% m7 q
- Serial.print("IP address : ");
6 v. C, M2 \5 L- h7 P6 K7 i - Serial.println(WiFi.localIP());
! D1 w t O6 ` F; O - server.on("/", HTTP_GET, [](){1 F$ g& b8 w/ l: [: k* Q
- server.sendHeader("Connection", "close");4 }* G& M. ?6 h* R: ~( y& l% j9 v
- server.send(200, "text/html", serverIndex);$ K6 n3 B) F6 y' z0 u* v
- });
0 i! C7 i( W. X" c m5 l" ] - server.on("/update", HTTP_POST, [](){
5 A: e& R9 e/ M - server.sendHeader("Connection", "close");
% U! R) g* C6 o9 A$ h/ e - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");) d7 ]7 h4 |! m% @8 u+ ~. G) P
- ESP.restart();8 S2 P. _/ a& s" B' S7 r
- },[](){! T6 I, _% }5 F% T5 Q
- HTTPUpload& upload = server.upload();
; u0 u1 V7 M9 J) W$ W7 Q - if(upload.status == UPLOAD_FILE_START){: K8 ` t/ ^0 L% V: L
- Serial.setDebugOutput(true);
`: U; T$ e. A0 j2 |+ q/ S - Serial.printf("Update: %s\n", upload.filename.c_str());! O9 W( ?# r, U( W. |: _! M( Y
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;' y) w3 ?* q5 @' O0 P( Z
- if(!Update.begin(maxSketchSpace)){
$ s* ~+ p ]+ n7 o+ w - Update.printError(Serial);
2 {% D$ s2 ]+ p - }3 D" r; r( P+ m- [' W; t, h
- } else if(upload.status == UPLOAD_FILE_WRITE){
3 B5 B. d* s! n0 R) }9 m - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
* Z/ Z* x1 e/ b2 h3 O7 z. N, w: |1 T T - Update.printError(Serial);0 A* ?% Y* t5 b7 g% D- S2 K4 W+ d) p
- }
2 e. \/ T) p0 s; ~0 p6 L; O4 E+ z - } else if(upload.status == UPLOAD_FILE_END){4 r& O S. `% a
- if(Update.end(true)){
- t2 P" j3 ~; M K, ^, M - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);$ ~* f- ?$ E$ b
- } else {7 n4 I+ _- e& P& z2 j
- Update.printError(Serial);% T$ @: C l% o( j R
- }7 ^0 ~: X. t& ]: C
- Serial.setDebugOutput(false);3 q7 {6 G8 Q6 u- {$ L
- }: ^! _3 I2 A$ L2 E
- yield();
+ e3 }6 L" }6 n - });8 ], p$ d: l a u) m
-
' n6 G6 O/ y! j$ F9 V - digitalWrite(2,0);0 C0 d+ N1 C# K$ Q, H8 V0 C8 K: F
- mainAction();8 K5 Q2 f0 F; P7 ^' b9 H: h
- if (digitalRead(0)){4 c( B/ Q$ b) L" c
- ESP.deepSleep(0);
: i( ~/ p, m5 U1 X8 i5 Z - } else {
8 i1 o3 B7 T! `( X+ y+ s3 m+ u - server.begin();+ F( M8 l. n: k, i f- @
- }
. C6 ^5 I5 |+ N. V* ~( U6 Y. \& } - }3 q0 J1 }2 Y1 y* c q X
- void loop() {+ w, ~6 N1 R0 ^ i3 H" b" c5 v
- server.handleClient();
6 n" V& Z+ |8 |6 o - delay(1);* M3 R1 e! s7 i1 b
- }, }; X: e) M% W3 c( T6 ^
- String doGet(String url){% i2 }" |% J. K8 y; e3 v2 n
- if ((WiFiMulti.run() == WL_CONNECTED)) {
c# ]/ h! x8 ^% s1 X$ `% | - HTTPClient http;7 ~% Z! I1 C2 U, [1 ~% v& R
- Serial.println("[HTTP] begin...");" J: F: |6 X; u- K2 c# d: p
- if (url.startsWith("https")) {6 _% D( X; ?+ v
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
! K. N7 o1 t- m - } else {
0 W" S& S% l2 n) k; w* x9 D - http.begin(url);
" v; B' N) M3 z* d% Z5 p7 Z/ J - }
% K7 `0 `( s3 T$ P - Serial.println("[HTTP] GET...");9 ~7 m) b& T2 C/ V4 ^1 x! i' C
- int httpCode = http.GET();
! [; G3 ]5 C8 H - if (httpCode > 0) {0 [- I, _: J- @8 V! U& z3 ]# n% e) F
- Serial.printf("[HTTP] code: %d\n", httpCode);
. L; S" e1 A* _' e7 o - if (httpCode == HTTP_CODE_OK) {
/ |" V* T; w j; m8 _' w/ t - String payload = http.getString();
/ \& A/ d7 m) c" B) U0 ] - Serial.println(payload);
$ A/ ]. ]0 a2 I# l/ p# @ - Serial.print("\r\n");
; {; R) u6 O9 M" k - return payload;) a0 B5 O8 H$ x% l& K' f
- }
$ ?( {2 N. }. ?) T- H - } else {
8 \3 j" k) c) E) r% e- T - Serial.printf("[HTTP] GET... failed, error: %s\n",
6 @+ W5 u( t0 D0 D2 ] - http.errorToString(httpCode).c_str());
9 H( v9 z# x9 t+ U% H5 h4 N - } t+ `% {( p6 X) Q+ V q
- http.end();, A4 p I" {" Q3 M6 M6 `- J
- return "";: E# k. M W1 e. V6 x* [
- }
! O2 m. Y3 p1 c- Z7 k - }' ?# e" P2 X8 @2 `/ f% J: N
- void mainAction() {) L! L x/ E/ h9 s" Y
- // 发送请求5 s: y/ N) j3 a' Z
- doGet("http://google.cn");
N! O' ~8 k8 x, s: G - }1 R& Y( A% _2 U8 T& J- c% h9 M, D
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