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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). {' C u5 k+ Q. }- k8 j
- #include <ESP8266HTTPClient.h>4 ?; ?' c) O* @% [) C6 b* q0 r2 f
- #include <ESP8266WiFi.h>& R* G5 d, ^: S6 {7 b! z5 J; O0 d
- #include <ESP8266WiFiMulti.h>
" H) H8 p, [0 N - #include <ESP8266WebServer.h>
& G& ~7 D' e1 U" A" O - #include <arduino.h>
/ y. y$ b \2 M - ESP8266WiFiMulti WiFiMulti;9 X! E8 G: ^8 ~% D% z& Y
- ESP8266WebServer server(80);+ G: N. p, F* m! b) Q: a
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
3 |! t8 a! |( K; l d; X! e - ADC_MODE(ADC_VCC);
+ C% i0 ~( H! R* F' F - void setup() {
9 N" S6 r8 V( E+ g - Serial.begin(115200);1 }' x+ o& S e
- Serial.print("\r\n\n");
+ h& H [) C1 f9 n" B& m% A - pinMode(2,OUTPUT);
8 |3 Q# M$ {/ Z& m/ R' M' ] - // WIFI8 ^& A. I6 i8 B9 a3 E
- WiFi.mode(WIFI_STA);
3 j% B- `6 s5 I) K - WiFi.hostname("Sparkle");
) l) F. T% S4 M3 c1 Y5 G - WiFiMulti.addAP("wifi ssid", "wifi password");
0 c2 _* j% Y2 @) }% b) }6 O- Y3 T+ O - int tryNum = 15;
$ r* v! o' ~; G - Serial.print("Connect WiFi");9 j/ [, l/ n+ ^* L, b6 s0 w
- while (WiFiMulti.run() != WL_CONNECTED) { ?" X$ H0 @+ T. n+ T8 Y# p* e
- digitalWrite(2,0);
/ V0 y: @, q+ o. o - delay(200);
' u- U' S3 Q+ p7 u+ f6 ?& Z - digitalWrite(2,1);
7 ~) Y- ?: y4 K5 J" M - delay(300);
; D9 w2 u, }# q5 L- z' M/ Q& x - Serial.print(".");
- f3 R1 S8 T/ p5 B/ v' P - tryNum--;
$ N4 N" v! |/ |9 d - if (tryNum == 0) {1 E4 Q1 g X+ o, f8 b ^
- // 1min& d2 x% W! F5 V
- // ESP.deepSleep(60e6);: r" _4 j9 [! a4 P
- ESP.deepSleep(0);
; D4 t5 ^3 I* c# c7 U; r, @8 B* j5 j9 n - }
4 \: ]: s C5 `% d1 E3 R - }, y. e5 O# G3 e& i
- Serial.print("\r\n");
: G2 e- p% U2 B+ i( ?9 s L - digitalWrite(2,1);! ?/ P" |; {- j( x( r! I4 I
- Serial.print("IP address : ");' A' F H6 G) b+ T- S6 v; n) s
- Serial.println(WiFi.localIP());
$ K( q* [/ Q' b$ P* _/ _ - server.on("/", HTTP_GET, [](){: c8 c9 H7 j. {- k9 ^% S: ~ [
- server.sendHeader("Connection", "close");) D$ H0 c6 i! x5 l
- server.send(200, "text/html", serverIndex);( T( d: j, O8 v$ o) s0 Z+ F
- });
+ v% y7 x( V: v+ y7 e- [! ^ - server.on("/update", HTTP_POST, [](){
! x0 T+ N5 I! S7 w - server.sendHeader("Connection", "close");3 ?0 {+ Z$ B! b }& z
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
0 R: j' Z u) [; ~6 F - ESP.restart();" `8 f+ h& a T7 N. P& S4 }2 B: I
- },[](){
. p; j- P$ u6 q3 \' I0 w2 } - HTTPUpload& upload = server.upload();" ^. A+ c2 V+ e$ m7 \* j" O; ]
- if(upload.status == UPLOAD_FILE_START){( I. Z$ s( X& |
- Serial.setDebugOutput(true);+ }" ~" L5 j$ S& w' y4 ?$ Y4 h
- Serial.printf("Update: %s\n", upload.filename.c_str());
. t0 s4 @; k, v8 y+ ^* z - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
8 x2 i& w1 J4 }( P7 c' G - if(!Update.begin(maxSketchSpace)){0 J5 _% E8 N" c9 M0 ]/ t2 O2 x
- Update.printError(Serial);
r& g: \ _5 L! R6 \" E8 i. i - }
3 |" u9 }9 _$ L0 ]2 e$ r - } else if(upload.status == UPLOAD_FILE_WRITE){7 w8 I: H$ g n8 M* Q5 N
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
I; K+ i' E. G% d- D. u: a - Update.printError(Serial);
+ C( ^( ^+ |& E k9 S. ] - }* f# O8 l9 L$ s* P0 A, Z
- } else if(upload.status == UPLOAD_FILE_END){. z& B6 j. Q! |' p$ z
- if(Update.end(true)){- d+ ]8 v, |5 X4 |
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
/ h0 C/ l0 X) A. X - } else {
) L! s7 C2 F- r4 ?3 F1 v! A - Update.printError(Serial);. {- v7 \2 ~* A/ G1 W: L6 }1 U
- } i( a5 _3 v1 r; f& s
- Serial.setDebugOutput(false);$ S2 p# R8 e* z
- }
5 v0 [- y \3 ^4 P; L' x0 Q - yield();* b. n2 n8 Z6 A; p( N$ P$ i
- });
& G V9 H8 O; ~5 a* q -
3 b/ N( s. [- w/ g$ H3 A* } - digitalWrite(2,0);
9 C1 A% y' Q7 V: Y) r - mainAction();! m4 l/ `/ v5 ^8 I, ^1 K
- if (digitalRead(0)){0 a# c: B# k+ m5 w( j. Q8 I8 n
- ESP.deepSleep(0);8 Q( K/ F1 S0 U$ P1 I5 M1 W
- } else {
* _9 V& _ V% X- m) K0 i9 ? - server.begin();
3 K7 Q4 I2 p, ?; c L* A! M$ v - }
! Q: N( h! R8 ^3 P( m - }: b& z4 G1 K) g; o! m
- void loop() {
% W& ]- ^' @3 c3 m - server.handleClient();
4 ?; N1 m! e' ^6 V - delay(1);1 }2 ? A- l. q% G5 r' J, m
- }. D0 P9 R2 B! e
- String doGet(String url){ |7 s2 N; N. N. n" v
- if ((WiFiMulti.run() == WL_CONNECTED)) {
3 x. C8 G* ? M# w5 a - HTTPClient http;
0 R+ j0 T: Z# U/ V4 i! o8 S3 _ - Serial.println("[HTTP] begin...");1 N4 |; \4 @ F+ W; V
- if (url.startsWith("https")) {1 P6 Y9 N9 C! T7 }' f
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");. ]) I; a+ g5 B6 Z' B
- } else {
: C+ w/ B1 z! @. M9 A; J' E - http.begin(url);
' d. u8 L# m4 h - }" C! e: e8 j9 u2 S: F8 p5 U
- Serial.println("[HTTP] GET...");9 R, ]1 ^+ D. |. M
- int httpCode = http.GET();8 U8 `. R; O: c5 e# L9 W4 |
- if (httpCode > 0) {- N! k' K; W9 Q) c2 O; U8 \
- Serial.printf("[HTTP] code: %d\n", httpCode);4 o" T' l7 o( G; M1 q; m
- if (httpCode == HTTP_CODE_OK) {9 T) I. v4 p- [0 [
- String payload = http.getString();4 @8 M( L6 r8 z) `; x/ J% x. n
- Serial.println(payload);0 }( d3 M; v8 J9 }' w" J4 I
- Serial.print("\r\n");
9 {7 g' l) Q6 b' i - return payload;/ ~6 Z' F+ [6 w2 y3 G& }
- }6 b( R% }( Z7 Y: D/ a/ m- ]; Z
- } else {
& W, T5 ?; F, p; C - Serial.printf("[HTTP] GET... failed, error: %s\n",
8 I7 ^9 V* X" K9 a6 n7 q2 Z% U6 q - http.errorToString(httpCode).c_str());7 }, T5 k/ F7 y5 l) L# B. d* I) [
- }. g: h6 p" m5 ?
- http.end();
: O" q4 t. M0 `! i& o- |* Y0 v - return "";& L# G/ o3 N0 I# {& t% _+ i
- }
6 {! A) N2 E9 _) \" p, u3 F6 w - }& Z9 @) e; a3 Z K p5 v6 l7 ]1 }
- void mainAction() {
" D: U) A& M% r, @3 p2 y8 o4 p0 K6 R# U - // 发送请求
( A9 A$ _4 z9 b1 ?8 [# v - doGet("http://google.cn");* a& D# Q5 @' p3 l0 l2 }/ G
- }' ]" l) V. }- g! n$ e- |0 E
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