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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)7 \. i) H# S4 K4 n
- #include <ESP8266HTTPClient.h>: Q- ^9 H1 [, d- r
- #include <ESP8266WiFi.h>
, ]" _7 `0 B, ?. z - #include <ESP8266WiFiMulti.h># [: a; t& G/ N$ i, n; }! \
- #include <ESP8266WebServer.h>
( E7 m" F1 W5 \, x - #include <arduino.h>
) z2 o9 |' N! w - ESP8266WiFiMulti WiFiMulti;
+ }0 A& N, I* L$ o& z - ESP8266WebServer server(80);: ~6 C' m1 \. Z! ?3 W; ?# q
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";* M1 G3 k; n3 O/ Z- e5 D* D) x5 \
- ADC_MODE(ADC_VCC);8 }" V1 A3 R1 ]. b6 h" \
- void setup() {; `+ s; H8 m" |3 F( ?" c
- Serial.begin(115200);
8 k' K1 e, K+ j - Serial.print("\r\n\n");2 q5 [# T+ \2 P& e. P
- pinMode(2,OUTPUT);
* y8 g9 e5 ^" i5 ]0 M: r1 h - // WIFI" J0 P4 _6 I# F
- WiFi.mode(WIFI_STA);
6 j+ v$ A% }% x - WiFi.hostname("Sparkle");: Z2 B" g; k& E1 N8 v9 B
- WiFiMulti.addAP("wifi ssid", "wifi password");
$ k/ h+ d! s1 N# Q6 @7 W - int tryNum = 15;. A' _- O& r! r; @: O' T# x1 i
- Serial.print("Connect WiFi");
7 n& A/ O; t, b& G* T9 v x* b8 y - while (WiFiMulti.run() != WL_CONNECTED) {: t& d4 ^* d; j
- digitalWrite(2,0);5 r; L& E1 m: x5 m
- delay(200);
. A. _5 J1 I$ N5 M S/ r8 x - digitalWrite(2,1);0 @; ]; e0 V9 [6 ^
- delay(300);4 a1 V2 i T& r$ ]- R
- Serial.print(".");
0 U# W E4 N8 ?& ` - tryNum--;% h8 W5 Y+ V4 Y2 {
- if (tryNum == 0) {4 l. m: k' k6 Z! i
- // 1min
* d- p ~1 v& z4 I - // ESP.deepSleep(60e6);2 j# K. v/ L, s- |
- ESP.deepSleep(0);, b$ p! g/ v+ N' o3 g5 k% \+ ]
- }- K" Q: {) l4 c
- }3 Z0 H) W3 _0 J" a: c( I9 K
- Serial.print("\r\n");4 }, G$ `8 _! D8 h g: h+ a5 Y" s+ B
- digitalWrite(2,1);1 S$ {# W4 Z0 o6 T {" T
- Serial.print("IP address : ");, g# U: y" a( h- s* u4 D) T9 b
- Serial.println(WiFi.localIP());
5 m+ b- s8 c; O. S3 A W0 x - server.on("/", HTTP_GET, [](){/ D- h2 R0 ` m3 j$ q0 x
- server.sendHeader("Connection", "close");( V; j9 I: X. z6 S, K2 _% h
- server.send(200, "text/html", serverIndex);
& f- n+ C) D- c - });
) C! J% W; t* w4 z1 X - server.on("/update", HTTP_POST, [](){, L) ]' R6 V. ?
- server.sendHeader("Connection", "close");8 h. d5 K& C C: M( a% n3 w
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
% @9 n* i9 M0 I" u" U - ESP.restart();
5 \9 T$ U* v% [9 D# ?/ d) ~' ] - },[](){) ^8 O/ }5 ?, f% N* x0 v; U
- HTTPUpload& upload = server.upload();
9 q; R2 Z7 M' ]: n6 d - if(upload.status == UPLOAD_FILE_START){
4 O# B: c. q: U% E0 G - Serial.setDebugOutput(true);
$ p! p. B8 m- v7 C0 b. z - Serial.printf("Update: %s\n", upload.filename.c_str());
3 b" u* y, @4 z* ]' O7 N - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;, e ]) o2 m. @1 l# N8 N
- if(!Update.begin(maxSketchSpace)){
2 t& Q8 Q5 l- e2 C/ p2 V+ s. m7 i - Update.printError(Serial);+ O+ y3 q9 X1 _$ d9 c) N/ x
- }
6 b8 l; u7 u+ f2 X - } else if(upload.status == UPLOAD_FILE_WRITE){& B0 I1 o V" x+ t
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
& I' r) S5 v) c, s! E. z; ~' T+ @ - Update.printError(Serial);7 C1 ?# c, c% N+ R1 D2 C6 o- C
- }6 D# _9 q {6 o% p) }0 n" _: W
- } else if(upload.status == UPLOAD_FILE_END){7 {- n+ s$ ^5 P9 H6 @7 ]7 x: _; I- }
- if(Update.end(true)){, g* z2 C0 Z* g# Z2 a
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);5 j# ^7 M" v8 g# S D
- } else {/ m/ t- [& [6 ~
- Update.printError(Serial);
4 |; g T4 P5 Z# \2 U - }+ i3 c4 A. R3 J' Y ~
- Serial.setDebugOutput(false);* V, n5 ?$ I( B/ }, Q9 P" I
- }1 B4 K( b- S! n2 a
- yield();8 K% O* `) W* E0 \; x: u; B4 W
- });# H7 S; _ c8 Y. l6 N
-
, Q# z* ?0 ~. A& T3 `! f. n: ` - digitalWrite(2,0);
) N- B: b% T3 M) P - mainAction();1 S( S5 e7 S3 N; K. S
- if (digitalRead(0)){
, e9 T( Y( T- p1 M) L- \/ q - ESP.deepSleep(0);
: C8 h; i5 V/ x: f4 E/ Y - } else {+ O) ~: \$ l5 f a! O- W! i
- server.begin();# [- q; I( H% }7 d# b! n$ y* M
- }
% Q: Z! U& l I% ?1 P9 `* W* u - }$ X, b6 O' R. N0 y8 e4 `6 u) i
- void loop() { i& p4 m7 @) J8 _2 q1 e: |" ]
- server.handleClient();
) @: R o3 \6 W& B$ | - delay(1);
! X( M$ f: @# r! E# i- z. X; b - }& O. ~% R# k& @
- String doGet(String url){( b; ?, d; q3 g# ?" I& o
- if ((WiFiMulti.run() == WL_CONNECTED)) {
" F1 S8 _0 z: E3 j - HTTPClient http;2 t4 ~( o }- ]" K; E8 Y
- Serial.println("[HTTP] begin...");2 [( \" k! L' w7 e
- if (url.startsWith("https")) {
5 B k$ J" d( e - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");( X0 X9 A; }: O, {0 Q9 i
- } else {; x+ N3 }0 K+ x
- http.begin(url);
! K) _' ~7 k6 |3 I' g# {4 q- | - }# v! q7 G2 a' n& y- [
- Serial.println("[HTTP] GET...");0 n" U9 W6 b0 u5 [" v8 |; x
- int httpCode = http.GET();: t. B: u5 s5 a& ^3 ]# d) L8 i
- if (httpCode > 0) {
; p. W, y+ N8 s6 ~+ ?4 c/ d' z; K: I - Serial.printf("[HTTP] code: %d\n", httpCode);
6 O! v+ ?. b | - if (httpCode == HTTP_CODE_OK) {0 Z B" l. Y8 z$ S; ^; Y
- String payload = http.getString();3 R' ~( B$ W9 g' q( U' }
- Serial.println(payload);
5 ]8 _" _& x: E; q) L) z$ V& d - Serial.print("\r\n");
2 E1 p) P9 K. S; | - return payload;( f6 X, S/ h" ?4 P3 p
- }( L8 E0 s; _' T4 { x/ m: j7 t
- } else {/ I: q! y+ Z: l: Q
- Serial.printf("[HTTP] GET... failed, error: %s\n",; U) m" f$ A+ }
- http.errorToString(httpCode).c_str());
& B$ f6 b9 {, K4 j - }% _" |3 b* {, K/ F8 V3 x/ I; b
- http.end();/ H5 {$ [( R9 n+ L$ J2 |
- return "";1 K+ d/ M t/ ?. d9 ^( S# P
- }& Z$ h- j+ B; P$ v
- }
( l, f1 V7 ] s3 A1 o - void mainAction() {% u1 |* X; b" L$ |
- // 发送请求
; ~7 Q5 h H& t5 @ o& x T - doGet("http://google.cn"); f5 h* P9 C0 M# Z7 H2 u
- }" ]1 H" q8 }' p
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