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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)* Y" S4 O8 ?5 _) C4 G( H$ ^/ ?6 \
- #include <ESP8266HTTPClient.h>
9 u5 `* e& d& j9 q" ~ - #include <ESP8266WiFi.h>
8 }' d ?, L3 e! M( M - #include <ESP8266WiFiMulti.h>
% Y$ y6 Z0 O4 I7 [. r' ~' O8 d - #include <ESP8266WebServer.h># ]1 ?4 w0 a6 d4 \& H$ w+ d
- #include <arduino.h>
7 S$ B, e( s% f/ z - ESP8266WiFiMulti WiFiMulti;4 G8 f+ W E$ t3 N! ?" X
- ESP8266WebServer server(80);2 g& k. Q: i4 z" z2 d& z
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
6 C$ H4 ~/ [+ l - ADC_MODE(ADC_VCC);
( }" g- u- _3 I1 E - void setup() {
" V% L; D) {" ^/ R1 F! D- j - Serial.begin(115200);
* ], l; c- [1 G8 a- @ - Serial.print("\r\n\n");
8 d& w6 p8 G1 W4 z# J - pinMode(2,OUTPUT);: b5 V) \7 Q" B9 r" g
- // WIFI
. _3 \6 {- ]- u% ~ - WiFi.mode(WIFI_STA);
3 { y9 C% z2 P - WiFi.hostname("Sparkle");
5 Y5 L3 @9 g1 M - WiFiMulti.addAP("wifi ssid", "wifi password");1 g; i, z; v! P1 q9 }9 t, k I
- int tryNum = 15;
7 Y7 _. w7 J- d' Y - Serial.print("Connect WiFi");
% B; k2 I: b- W5 i8 R9 |5 z9 O - while (WiFiMulti.run() != WL_CONNECTED) {
d3 O- W8 G0 P5 U1 _; K! P - digitalWrite(2,0);
% a3 t# V9 _) E" }0 F c - delay(200);" p4 L* t# g5 _* v. C3 J- X) q
- digitalWrite(2,1);
! A, y' e7 w* L6 H! ~* G' Z) h - delay(300);5 I; c- e; g- Z# A
- Serial.print(".");* b* z* Z$ N. Z6 m& z; s
- tryNum--;
0 c' M8 T- G4 {' @# A4 { - if (tryNum == 0) {
; c* |4 t' q5 J* ~2 s$ b; Z! Y% o/ O8 ?* N - // 1min
( v+ s# _+ _. b8 O; o% l - // ESP.deepSleep(60e6);% H! \+ d" f1 p5 U: ^( g+ H* \
- ESP.deepSleep(0);
5 ]$ f, z/ d& Y0 o$ M8 j& Y - }# E1 n: M) N! z5 R# |" C
- }
0 X6 s/ O* S1 s" M7 H - Serial.print("\r\n");2 l. L7 f8 q/ ]7 Y. r. [/ s
- digitalWrite(2,1);7 o$ M [& M# \1 [4 x4 [7 S
- Serial.print("IP address : ");1 t& o% q" y& m/ Q( E5 ]5 \
- Serial.println(WiFi.localIP());# ?& f$ }& G9 n3 H. D' l
- server.on("/", HTTP_GET, [](){
) f( Z5 u& d2 Z+ g! Z* M - server.sendHeader("Connection", "close");
. }( l2 {7 Z6 L/ H* f' X5 I( n) ` - server.send(200, "text/html", serverIndex);
+ l9 v) [1 H, N' _8 X - });: ~( B+ ^# I- \" h( A9 I
- server.on("/update", HTTP_POST, [](){- h1 i! U. K6 H0 a- m' J
- server.sendHeader("Connection", "close");
( a, ]" C' N' b8 e' l q' @: X# v2 g' { - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
2 W6 a! t# ^- {+ {2 q; f - ESP.restart();
5 F0 ^# F4 S$ Z& R - },[](){! p/ b6 A( j- m3 z0 M. `
- HTTPUpload& upload = server.upload();& I) }6 J/ ?6 f9 B" E
- if(upload.status == UPLOAD_FILE_START){
& U1 X8 f C' E& g$ X* N' q - Serial.setDebugOutput(true);: }" f9 r+ X- M4 o
- Serial.printf("Update: %s\n", upload.filename.c_str());6 [9 u. ]. C: X" \7 D( |; S6 d
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;( c& a5 F; O) M7 f% ~
- if(!Update.begin(maxSketchSpace)){
; f* a- }1 E! r* o: Q - Update.printError(Serial);
( J; c4 _, K* u; I - }
& i6 u5 _2 Z, a0 }% t - } else if(upload.status == UPLOAD_FILE_WRITE){8 R4 A. e5 a% N7 @% n" _1 Z5 H
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
, D% h' z; x+ h2 U - Update.printError(Serial);( v! k5 `+ P" C6 B
- }
! |$ {8 B7 z& [) J - } else if(upload.status == UPLOAD_FILE_END){2 M6 t, k# Z% b9 J9 ]
- if(Update.end(true)){: S8 k3 i f: m+ h* W0 }
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
) X- v( w1 l' T; f! C- n6 e2 u - } else {2 p& X) p1 L9 T# k9 [
- Update.printError(Serial);
* T8 D3 g1 z/ y - }
- D5 ]( e2 N# c: v* \9 M% M - Serial.setDebugOutput(false);4 h4 E# ] S3 T; |# v! L% g6 ~
- }
/ ]7 r, F8 h1 J: b+ S+ S - yield();
3 L8 v2 f7 L1 V% t, T% j2 N8 S - });
: r. C$ W8 U* L5 q) S( j -
" m3 X: [& E6 }+ F9 v! J - digitalWrite(2,0);" K Q+ T: n! { ^/ p6 G
- mainAction();
: [0 Q* f/ u* _ Q - if (digitalRead(0)){
* n& L. U: \9 o - ESP.deepSleep(0);
0 r: j! C$ W; C2 b - } else {2 J: V9 I8 r5 t& w, E3 m5 m. |0 w/ O
- server.begin();$ w1 b! w% S: p5 ^; x+ q
- }! M7 q% V8 a& D: m/ A
- }5 c8 D/ m/ a1 _: O% j
- void loop() { g0 \- p6 o; V* i0 C2 [( x
- server.handleClient();
$ t5 {* v! m4 }4 M) W. I" Z - delay(1);
! Q( s9 Q# {3 ~: t - }% |" p1 u+ W7 s
- String doGet(String url){
: }8 ]( I% E- q3 l3 s7 _; ] - if ((WiFiMulti.run() == WL_CONNECTED)) {
& x; c, t8 I# X' N' e3 B - HTTPClient http;
. ^0 N7 y8 J6 n; \4 n7 e - Serial.println("[HTTP] begin...");; q2 {, u6 ]/ w
- if (url.startsWith("https")) {
/ ^2 _7 e y7 c- i" @; I% B - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
* r) j! A& v# `4 `% \ - } else {: h) K* \& ?+ U& E' c
- http.begin(url);& T, C9 B) ?5 m; K- r' y& m9 X
- }
' d; x @7 ]# o( d3 l - Serial.println("[HTTP] GET...");
2 j" ~4 f& W9 T& J# w - int httpCode = http.GET();4 Q: q$ x( I: L0 k( n
- if (httpCode > 0) {2 n6 H0 x7 ]: F; l, |. z( n5 J3 |
- Serial.printf("[HTTP] code: %d\n", httpCode);
) r0 [' Q2 b! z1 p+ k- x - if (httpCode == HTTP_CODE_OK) {5 N ^# i" Z3 f0 ]) L: z
- String payload = http.getString();
1 t6 J( Q/ \% p, I6 _ - Serial.println(payload);
: Q, e+ [5 W6 k! _" c* N - Serial.print("\r\n");2 Q7 t& s5 y- \3 y9 \0 R3 \
- return payload;" i8 o$ G6 C3 h7 o9 R! |
- }
! K7 R( J) ~) @- j, E6 ?# S - } else {& u. n3 v2 o+ p4 z, ?8 V
- Serial.printf("[HTTP] GET... failed, error: %s\n",
" z: H8 i" ~* @5 I* P+ s- e! g" |& r - http.errorToString(httpCode).c_str());
, c# J4 O- Z. i& e - }0 r, q+ _' m9 E6 O& i* K7 \& ]+ K
- http.end();% v% e, w, z( J7 z* t0 [$ |
- return "";/ ]- {; Y' K: D; G+ ?- l0 V
- }
6 z# A7 c' K2 @& O$ p" C - }& D" Z6 E3 I6 N7 |2 l
- void mainAction() {* n: @9 q* t, s( H
- // 发送请求
5 n& I y7 h: G - doGet("http://google.cn");
+ r7 Q/ @& t. i. E2 a9 U - }
1 B, M$ S- D9 T
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