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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)- N6 E5 r% Z, N& D: ^% ^+ m$ k
- #include <ESP8266HTTPClient.h>
! W u$ ?# `4 U b* n8 E6 Y - #include <ESP8266WiFi.h>
$ A5 s( i' `7 w- m- c& \ - #include <ESP8266WiFiMulti.h>' g4 U" q& A" S3 e+ C) c
- #include <ESP8266WebServer.h>
?$ d9 l1 P4 Y+ u7 Z+ f8 U7 w - #include <arduino.h>: [$ l3 P; X, l3 p9 G
- ESP8266WiFiMulti WiFiMulti;
& I) K0 O/ u: \0 B3 M - ESP8266WebServer server(80);
& n$ S; J& J. V9 a - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
& c& x# f7 V3 t+ u" N; d* c - ADC_MODE(ADC_VCC);' W7 @) V7 Z2 L! Q: ]
- void setup() {& ~$ \$ E' W1 r! J* x/ ^
- Serial.begin(115200);$ ^' G" d) r4 c/ N* z- _' }
- Serial.print("\r\n\n");1 q. d- D% A% e2 v: N) Z) E' h
- pinMode(2,OUTPUT);
* \* A2 g% o. @( g7 e3 E - // WIFI4 W# V8 R+ B. e: }% b
- WiFi.mode(WIFI_STA);! D, ~$ I3 R' P( W- ^5 A# N
- WiFi.hostname("Sparkle");
" @7 K# d1 G4 b3 U2 a+ x- i - WiFiMulti.addAP("wifi ssid", "wifi password");' G$ n- J# m7 b
- int tryNum = 15;
( l$ g/ _0 K- }6 {" N- U - Serial.print("Connect WiFi");
4 |# l/ }* Q% M4 W' [- x" f* v - while (WiFiMulti.run() != WL_CONNECTED) {
1 M3 t1 W( R$ b - digitalWrite(2,0); Z! t# E9 O, S7 J1 A
- delay(200);
$ h9 k) {" t6 ~- ] [/ v8 p - digitalWrite(2,1);0 z' u9 i( H# {5 @/ d6 ^
- delay(300);
! H7 ~' Q* a+ d4 y. {9 B - Serial.print(".");' q, p7 \# a. a7 Z- X
- tryNum--;
; y9 I- M$ q/ U# z# c4 ?* `9 r - if (tryNum == 0) {
. M! @2 N1 }6 f9 g& f/ r - // 1min
6 Z8 ?# |. c8 c7 Q1 I" t - // ESP.deepSleep(60e6);) ^! \. b5 z' l& U
- ESP.deepSleep(0);; P* I1 n4 X# ^, Y8 ]+ ^
- } g2 b6 G" S$ W/ r, K
- }
+ e- E" |0 g% s, j - Serial.print("\r\n");
/ e# f; B, ^4 Y4 {7 ^: J5 J - digitalWrite(2,1);
$ |6 [( M+ E3 f' a4 f - Serial.print("IP address : ");
0 W3 n4 ^7 f# E - Serial.println(WiFi.localIP());
* v" L3 ~; n& j0 o7 Z- p. [5 M - server.on("/", HTTP_GET, [](){0 I8 L ]: [; ?/ ]
- server.sendHeader("Connection", "close");
, P4 l* m) _7 ^$ A( ? - server.send(200, "text/html", serverIndex);
! x6 n2 W, f$ Z g' _ - });2 Z/ \! \' A5 q( f7 D$ z9 A
- server.on("/update", HTTP_POST, [](){8 o8 d9 {; Q2 k: j2 x6 t0 \
- server.sendHeader("Connection", "close");8 u H$ q5 \ i$ Y
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");' j/ r R6 j4 W `5 M& R$ d- e
- ESP.restart();. H6 G9 [& p, P3 j5 X
- },[](){
2 Y' R& |; N/ } S: N - HTTPUpload& upload = server.upload();: Z$ b: H$ I; m6 C; j
- if(upload.status == UPLOAD_FILE_START){: ^# _* f7 W+ ?9 C( l( m3 ^1 ^ ?; E
- Serial.setDebugOutput(true);/ B+ D* P+ D1 l3 W. `
- Serial.printf("Update: %s\n", upload.filename.c_str());; }0 ~; a1 _4 r& a
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
6 h! _& {- D+ E% t2 w - if(!Update.begin(maxSketchSpace)){, K8 A+ _+ c0 d! S' ]3 s+ u
- Update.printError(Serial);/ m) K& n6 B7 q2 I q
- }% I3 A( W/ \( e
- } else if(upload.status == UPLOAD_FILE_WRITE){
1 ]5 m, S2 M ^8 V7 l - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){1 Z9 k. D; l5 D7 _! O2 \
- Update.printError(Serial);
+ H, T3 b% ^" [7 l - }
! p2 I% D- {+ E3 l - } else if(upload.status == UPLOAD_FILE_END){; g8 c5 e8 w D( W; I. Q2 y- z2 `1 ~
- if(Update.end(true)){8 ], i+ a' M- ~" d' I
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
% e" {, K. U' ~0 E - } else {
) Y# L5 y2 X4 T: a3 f - Update.printError(Serial);
! O5 h5 Y$ w4 j% R ?# G - }
7 D* o! n/ l3 v8 X4 q9 f- u - Serial.setDebugOutput(false);
" Q Z8 Z* z7 |2 i2 e - }
1 S3 L* F: _. p* \. ]- e - yield();9 C4 x' ]0 s. J& t2 r3 |, x
- });
2 T5 k, L' m7 H - , l" n/ E4 Y: U6 F
- digitalWrite(2,0); t6 N7 A$ E D9 T- `
- mainAction();5 U7 M# Q s. J- v5 r
- if (digitalRead(0)){, ]5 j* X% J: z
- ESP.deepSleep(0);
/ N9 v$ G# n$ |& j/ p - } else {
. S. q: u9 j3 B# X8 d) |1 k - server.begin();& T( H' u2 o9 n% ]; G! m- N; j5 d
- }. b7 M' ^3 D. I" ^8 M |
- }2 r# u! r; g; K# {, O
- void loop() {2 S" ~7 L- ?, I2 |2 R
- server.handleClient();- q% b" F$ t. D4 J4 Y0 s' D7 a# K
- delay(1);: A( t' t7 R8 f1 y+ z
- }: `% R8 _9 A, N$ N7 {: f3 ]
- String doGet(String url){
) f2 ^% P8 @6 b5 Q& _# O# E - if ((WiFiMulti.run() == WL_CONNECTED)) {
' k) i- s( }( c/ r - HTTPClient http;! ? a5 C' a) I! m9 V9 x- d
- Serial.println("[HTTP] begin...");
9 V9 |4 A' m0 T" b/ K6 e - if (url.startsWith("https")) {
6 R T9 {2 ~ ^" k4 F. M6 ~ - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");' r# j6 E n8 e/ u
- } else {& s7 I4 M" U, g9 B" s+ [5 {
- http.begin(url);$ Q" e- S2 q/ E. \( w1 D2 R$ U
- }
, O1 }% U0 ?5 L2 X) L/ k. o - Serial.println("[HTTP] GET...");, f! A/ Q6 |9 w; Y2 i$ t
- int httpCode = http.GET();& m. Q4 D! z& a1 v6 q, w/ C3 C
- if (httpCode > 0) {
2 M$ J" G% s, K) W - Serial.printf("[HTTP] code: %d\n", httpCode);
! s2 L( }2 o. b0 p" n5 F - if (httpCode == HTTP_CODE_OK) {1 h; D( w9 _7 w$ ] {
- String payload = http.getString();% F' z7 @" h V
- Serial.println(payload);
6 L9 t$ Z a8 f5 ] ` - Serial.print("\r\n");/ E6 Y, ~% J! {% `; J) N
- return payload;
9 c# t! X# P P - }( T0 H" U3 K* e7 X. q2 Z- c
- } else {9 C- W: s% _8 @# S- e
- Serial.printf("[HTTP] GET... failed, error: %s\n",1 }7 z. E& W& W
- http.errorToString(httpCode).c_str());
S+ a2 V X0 v: D$ G - }
3 a6 }: l0 Y$ H5 I - http.end();
4 X4 y) a- T, H- _) Q) I) } - return "";
4 w3 S% _+ U( m0 t' v% s6 j" ] - }. K+ v; W" P# q* ?; q$ y- x
- }
3 _; [- G, z+ Y1 A4 }2 R" ` - void mainAction() {
w, S9 t1 l- M5 v - // 发送请求6 _# ]0 f. Q" P( H1 w( r
- doGet("http://google.cn");
" ?* q! n# x# s# K8 K - }0 i* p0 l! \; Q8 g* k
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