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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)
0 P( u b3 _% B+ z6 {' r w- #include <ESP8266HTTPClient.h>4 v( o- ]# A" ? s8 A# `( |
- #include <ESP8266WiFi.h>2 O/ n$ u" ]; r# R/ q
- #include <ESP8266WiFiMulti.h>, @: {* H6 U! F$ j& ~! b. Z
- #include <ESP8266WebServer.h>
- n5 A; K1 S# P9 j - #include <arduino.h>5 Z/ ^3 D4 l* d) E0 d
- ESP8266WiFiMulti WiFiMulti;) z4 _- @# W d8 o2 S1 Y
- ESP8266WebServer server(80);
2 H W$ }: I8 J* u& V - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
& K7 M8 H8 \' i8 T0 Y+ Z - ADC_MODE(ADC_VCC);
* o: K& o4 U+ l) A( e. p4 n& s - void setup() {2 S9 G1 B0 M' k! C9 Q7 {6 Y' v
- Serial.begin(115200);6 h. ~0 X* m6 v+ w
- Serial.print("\r\n\n");6 q2 |& ^; q" E/ W
- pinMode(2,OUTPUT);& S; S- q _9 e, P: N6 n9 G+ n; d( q
- // WIFI0 a1 b7 }4 M( S9 Y& ~5 w
- WiFi.mode(WIFI_STA);
. g# @( Z M7 i4 t - WiFi.hostname("Sparkle");
$ ^/ d7 U8 v7 _1 f9 @' w+ e - WiFiMulti.addAP("wifi ssid", "wifi password");
! ?. c7 z, T6 i7 y# L! ?0 X" v - int tryNum = 15;
: _8 }6 l- j- A - Serial.print("Connect WiFi");" t! Q: [' k0 x6 ~0 M/ R
- while (WiFiMulti.run() != WL_CONNECTED) {; H6 Y5 p; ] Z# L5 _# f
- digitalWrite(2,0);7 `! g Y: `, Q* o& _4 L1 M
- delay(200);; J& S" C$ e/ S) a2 {( v4 c0 C
- digitalWrite(2,1);
$ x# d+ U% o: `# v+ b - delay(300);
/ P. A% I! b4 k - Serial.print(".");
* z; R _$ ~% z8 x - tryNum--;& F9 x4 R; A* k3 o5 r4 P& R
- if (tryNum == 0) {1 C4 _9 W% W9 O/ D
- // 1min9 X; I* _& h9 P1 |
- // ESP.deepSleep(60e6);. Z1 @* q$ f) M& F) H/ K8 K
- ESP.deepSleep(0);* @6 F" N3 W9 b$ r8 F2 T3 c* s
- }
3 g2 M" ~* j0 E, ] t - }
2 i5 B! W$ p! t/ n1 x - Serial.print("\r\n");
1 }$ Y& |8 x" D. H% p! r) P - digitalWrite(2,1);
, X# U9 x6 k5 U& U% V - Serial.print("IP address : ");8 r* K* k z' r- L5 m8 V
- Serial.println(WiFi.localIP());5 V( M' k1 D7 k: ?
- server.on("/", HTTP_GET, [](){3 Z, u$ N! g4 j2 m! E8 q
- server.sendHeader("Connection", "close");
+ A4 i6 l7 [: F& [0 \( r: @ - server.send(200, "text/html", serverIndex);
; l/ x* J5 Q- D! K) j2 i$ R0 N/ A - });
I/ i1 t$ _0 x8 J8 W' ]. n - server.on("/update", HTTP_POST, [](){1 c8 B, K. Z$ p4 q9 n. |7 B
- server.sendHeader("Connection", "close");
! ^, f4 y, j+ H2 [ - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
- W/ L; Z4 Z1 K8 o+ ^2 d. Q2 b( j - ESP.restart();& F% n! X% G( U/ ]
- },[](){# G$ I- B: |+ W; K8 c
- HTTPUpload& upload = server.upload();# W* G8 O$ \8 q- q
- if(upload.status == UPLOAD_FILE_START){0 V4 h1 s6 n1 u# U
- Serial.setDebugOutput(true);
9 |/ n8 ~4 v$ O. i5 m; N - Serial.printf("Update: %s\n", upload.filename.c_str());
' X* f3 I) N. b, L. B - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;% {+ M; b( S( @: _! ~# C
- if(!Update.begin(maxSketchSpace)){
2 L) b8 _1 U% G: j - Update.printError(Serial);4 c! L6 p# a8 t$ x5 j3 v: ~
- }
! z/ ?1 } g N6 Y2 Y - } else if(upload.status == UPLOAD_FILE_WRITE){
+ H0 e0 [8 b' D+ n4 b* s/ u- M' b - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
1 |( [, w1 F4 w' |- i - Update.printError(Serial); U: _/ i, c# m0 \& @
- }) j+ n& O8 m+ y# X; q! \: d+ Y- ?2 C
- } else if(upload.status == UPLOAD_FILE_END){
+ ~3 u9 T6 a2 I8 Z( B, } - if(Update.end(true)){
: c# n4 s5 N( r' v+ i - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
. Y2 g# h& h; `1 Z: V - } else { J4 L3 @. Y) T
- Update.printError(Serial);' c+ q3 b% {: c' J! n" c" O; p
- }* [& `5 Y3 a: z4 V5 p
- Serial.setDebugOutput(false);) i: A2 ?3 M$ l. R
- }
) D% @3 ]0 Z3 N i% x3 ? - yield();* ?; V0 u7 ^; Z/ w7 ?6 @4 {
- });
" A8 y$ \' k) |$ @! H5 [ -
* h8 d: f4 Q! D: M$ w1 m - digitalWrite(2,0);6 F. d% n( ?. E
- mainAction();. R$ U7 B; V. {. a9 f
- if (digitalRead(0)){
+ @1 C$ v/ r3 t0 ^- {% a - ESP.deepSleep(0);
7 |; j2 o5 q1 Q7 U. H1 \! y ] - } else {& h$ r4 U% b* s! p; i; K2 U9 |
- server.begin();3 g/ q' M0 P7 b; {6 j- f, ?2 q" C7 k
- }
4 E& p/ m5 o1 @: A+ P - }
f E* S. D" T% P: K - void loop() {8 s2 ^; W( V5 A4 J
- server.handleClient();
; ^ a M1 W. G4 ]. S9 N - delay(1);: w* w2 V' M& l
- }
2 T) h) z2 d- i1 }. F1 {$ A - String doGet(String url){6 z) |* E( Y7 q$ J
- if ((WiFiMulti.run() == WL_CONNECTED)) {
$ S" o; a/ m$ Q6 v+ [ - HTTPClient http;! R, T. `. ~" N* V
- Serial.println("[HTTP] begin...");, }/ V8 H |% Y$ R
- if (url.startsWith("https")) {
6 ^# k1 C' o V. v+ l3 m( K - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");. p8 q4 P) g! n& x
- } else {
% \ S1 ^1 ]; A0 V - http.begin(url);
9 Y0 r& w, G5 l1 G& `6 I: ~# q - }
, O9 S/ w. E( N - Serial.println("[HTTP] GET...");
/ @& a! W: T: r - int httpCode = http.GET(); K g w+ d! k& i* Q; U+ C0 ?
- if (httpCode > 0) {& T; \$ E% [. w6 q n! ~- a% u
- Serial.printf("[HTTP] code: %d\n", httpCode);
$ X2 q' ^6 G$ c* c/ u; _* ]8 X - if (httpCode == HTTP_CODE_OK) {
; O2 m+ }4 X$ }* d! E$ ], e - String payload = http.getString();9 K' }( a; f/ B' G2 h+ U& x x
- Serial.println(payload);
# M8 G+ k/ b" B( F j - Serial.print("\r\n");
$ m( {/ h1 p4 {. t P - return payload;" |# Y ] j, G9 N
- }5 W! |, V! N; p3 l8 Y
- } else {
, C( n9 v- `1 ?$ f* _ - Serial.printf("[HTTP] GET... failed, error: %s\n",
% ]/ g# I4 T! p' o, o* y - http.errorToString(httpCode).c_str());% h1 G3 b4 o% Y: C
- }
8 ~$ Q8 e3 D9 k# ~ - http.end();
+ ^' C. ]/ b2 l2 J! s# {2 A } - return "";' r7 l4 L. n; C% C
- }! q& [3 ^* |' T" W1 E4 v
- }
4 _. `" [; j2 V' I1 [* O - void mainAction() {
- `% R" O% l% ? - // 发送请求0 w& K% ?' K' k) c
- doGet("http://google.cn");
+ Z$ q2 q; j! u - }, b0 Y" S. j4 N+ A. _" R# X% r; u
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