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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)
, L% ]1 H% ^- e0 l) J- #include <ESP8266HTTPClient.h>; X: j8 R W# @7 l% i8 }! ?
- #include <ESP8266WiFi.h>
8 a7 r3 @6 W1 K - #include <ESP8266WiFiMulti.h>4 ?; S: C) L# v5 a
- #include <ESP8266WebServer.h>
+ `3 j7 \% Q! h; P+ p/ N) \6 Q( M - #include <arduino.h>
% `0 z! Y5 b* v) s, D - ESP8266WiFiMulti WiFiMulti;
% R l4 ?1 k, s* k - ESP8266WebServer server(80);; H9 W* `& ^: H" n& H7 Y
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";! H" n! N% A, N/ K
- ADC_MODE(ADC_VCC);: h a7 _+ `( S$ Y& s, S* |, o7 b
- void setup() {
* ?& Q$ a: _" P - Serial.begin(115200);3 G5 O2 l$ y/ m$ I9 Y, V4 k9 ?
- Serial.print("\r\n\n");% j( W( i% x0 F
- pinMode(2,OUTPUT);
6 a9 M( J: L5 y) {( d6 @ - // WIFI
' w7 Z4 U4 Y% q' U - WiFi.mode(WIFI_STA);
( R1 S+ h. n8 p# \$ T% a" Y - WiFi.hostname("Sparkle");
! [: d2 M; J, h1 I - WiFiMulti.addAP("wifi ssid", "wifi password");
: U7 X; X( ]0 N+ U8 p3 K( p - int tryNum = 15;
5 D8 h* K& e3 H$ j8 Z* a - Serial.print("Connect WiFi");
% v: S- G8 r" ]' i: p/ h0 h - while (WiFiMulti.run() != WL_CONNECTED) {
' l* @+ ^- a& Z1 {' w - digitalWrite(2,0);
: S- l- X2 _% k! ^2 b. u - delay(200);3 B3 W) f1 ?7 B/ A5 g x0 k+ {
- digitalWrite(2,1);% j+ v- j4 S g; d
- delay(300);# H( L& k+ ]4 [; ?
- Serial.print(".");
& l! @' N" u4 f* u - tryNum--;/ x) E! S8 a: }* Z" z( j* V( l
- if (tryNum == 0) {! u$ R$ T/ ^% Z9 t! K" [; ~) p
- // 1min3 O D m4 \" S) w
- // ESP.deepSleep(60e6);0 m3 V' H* Q6 r, t9 }" K
- ESP.deepSleep(0);, X8 J9 j/ e$ n; ^& w
- }
. O, s& s1 p; \! D* N - }" F# s3 e9 x; U" O$ x, J- N
- Serial.print("\r\n");
$ S( T, W* ?/ [# x# s5 E - digitalWrite(2,1);+ ?7 m( o& r- p& \! f
- Serial.print("IP address : ");
% J6 V$ N$ b/ V) C- F. n _ - Serial.println(WiFi.localIP());* T8 v5 I, B) w2 G( Y. M% l
- server.on("/", HTTP_GET, [](){: f6 [! [) d5 x0 v8 M7 F
- server.sendHeader("Connection", "close");( g! r. ~" s5 u2 U
- server.send(200, "text/html", serverIndex);1 X/ `: h6 u1 b7 ]/ @% |
- });
0 [: D5 Y4 i% ]: w( A - server.on("/update", HTTP_POST, [](){
3 V5 l6 m* A1 z- S/ o8 _& z8 y - server.sendHeader("Connection", "close");
6 H' z: \/ b3 d2 I% I; s - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");& A) R/ ]* E- Y% V3 {7 a9 w Y+ O
- ESP.restart();% e& D3 k. Y! M
- },[](){
6 o1 i& j4 H3 b) o+ Z, O3 F - HTTPUpload& upload = server.upload();
' z* w7 U' N; P - if(upload.status == UPLOAD_FILE_START){
6 |/ Q; r+ |1 w2 C - Serial.setDebugOutput(true);
+ S3 X, C R2 R4 m$ G% n, R - Serial.printf("Update: %s\n", upload.filename.c_str()); }7 T3 D' x `0 c' J
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;8 x% q( z( a- W# ~/ }& ]
- if(!Update.begin(maxSketchSpace)){
" ?0 A3 v0 c$ |% p2 m4 y+ m4 |+ \ - Update.printError(Serial);. } a2 U1 N1 u' t
- }
- P1 \, g e' A% s, K - } else if(upload.status == UPLOAD_FILE_WRITE){# S& Q3 q; B9 ^$ @8 u+ p0 A
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){1 N7 v* ]9 d: Z3 K+ v7 G3 \
- Update.printError(Serial);
" o- B! D( y) x4 x/ N- b - }
; k" y( _+ K" J; { - } else if(upload.status == UPLOAD_FILE_END){
5 G" A2 _$ Z4 k/ X' I* u/ H - if(Update.end(true)){ m% O. ^, |2 C9 i, j. [0 B
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize); ^( o9 d+ s+ |! x1 ^
- } else {# y& @6 `, Q4 ]8 s$ f
- Update.printError(Serial);1 m3 y& r6 b3 N* P* {6 P2 d9 Q7 V
- }0 e) ~& [0 g+ w6 H" _2 I1 E A
- Serial.setDebugOutput(false);5 K; v0 ~3 S( W; I, q
- }1 h5 u1 g) J g( O
- yield();3 m! {6 I6 U0 O" n9 C. A
- });
- H0 O, c7 e) v- {4 \1 z" H- D4 h - 7 g+ m! o6 b; o7 E/ n) p
- digitalWrite(2,0);
! g/ N$ x) U& W1 V. m - mainAction();4 d9 }, G& L3 ~" Z& z0 Q
- if (digitalRead(0)){
: H; o# `2 R2 l5 F9 |$ ~ - ESP.deepSleep(0);
7 F' B$ d5 b b. s - } else {
/ e- |. K5 n+ X) p - server.begin();
. a1 Z8 B4 B6 k9 z/ m! d1 q' H - }
6 E$ h! m# t M4 o, G" F& k - }
0 ?. j8 \" u; P8 ^4 U$ | - void loop() {
' j6 v: C% n# T! ^$ m - server.handleClient();
( e, C; Y3 U; m$ } - delay(1);
8 O8 u3 v. n8 D! w3 [9 o - }; ]# |0 u; |, ?' } c
- String doGet(String url){
. x$ @2 \5 w3 n# B: w4 I- o - if ((WiFiMulti.run() == WL_CONNECTED)) {
9 ^, c. \) v9 j1 B. Y - HTTPClient http;' P# A, c6 S3 M, g7 b( G* s
- Serial.println("[HTTP] begin...");& c" @, s9 J$ L1 d4 J& O/ n& k
- if (url.startsWith("https")) {6 q$ M' O# g( G' t4 S
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
/ o$ F$ i U: N# i - } else {
0 k# E# J' W* k0 ^' w; k% C - http.begin(url);
8 f( e3 j3 w/ ?* I& S - }
: k% R6 E. B, @! `1 g - Serial.println("[HTTP] GET...");- U4 l* x& o% n- V0 D
- int httpCode = http.GET();* ?9 |% n# W+ T" p4 V
- if (httpCode > 0) {
: ~3 D: W" D8 @ - Serial.printf("[HTTP] code: %d\n", httpCode);
- @' a. k2 N t ~ - if (httpCode == HTTP_CODE_OK) {
( [0 ` l$ j% C3 P* t: R. z - String payload = http.getString();% ]* i3 L- I4 e4 n$ y
- Serial.println(payload);0 V% w- z! X( @0 s
- Serial.print("\r\n");0 }, ?, u+ p# B5 h
- return payload;
, j5 j& g8 n3 i - }
4 T6 B- R/ y9 D - } else {
5 j; I7 a- u: E - Serial.printf("[HTTP] GET... failed, error: %s\n",
+ \) V) {; }( R - http.errorToString(httpCode).c_str());
7 W, A& r: r* h' S- S) ] - }
# }$ t4 z% m( X( {4 H. e - http.end();- i3 l5 p; d7 g; l, A) B
- return "";$ `: _! l- O1 Y" ~
- }
! f) k1 p* z9 @2 [6 ? - }+ H* B8 [9 J( e: a
- void mainAction() {
f. }) c: {0 f a8 P - // 发送请求
$ K- V6 g- s$ w - doGet("http://google.cn");1 [! }" D& E5 J" K" a
- }. J2 ?$ v4 y9 d
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