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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 ]9 r1 |$ G# l% K2 \# u9 f
- #include <ESP8266HTTPClient.h>, d) F+ s9 {' D) c; m
- #include <ESP8266WiFi.h>
+ G3 z% `# u6 p$ L) z9 F - #include <ESP8266WiFiMulti.h>
( y9 k& T* e L e - #include <ESP8266WebServer.h>
( D" a) o% ?2 `. | - #include <arduino.h>: ]7 o2 m9 c' e' @, h* o; B J
- ESP8266WiFiMulti WiFiMulti;
( p Y: A( g8 ?3 Y* o+ ^# O! X - ESP8266WebServer server(80);- `1 ~* M: s/ I, A; B( Z' r! U
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
- q/ M) I6 o5 W2 P) E' M0 Q5 s* N$ N - ADC_MODE(ADC_VCC);
& u* Z( r5 r1 V* N- V0 V - void setup() {/ z C8 w% n6 ]
- Serial.begin(115200);
: n* X& i- M4 k9 _3 O - Serial.print("\r\n\n");
1 D, o B- z- d+ W - pinMode(2,OUTPUT);
) B/ O4 k+ _( h( P. O, c" @& m: Y - // WIFI$ _, d5 u& a" S7 W, _6 f1 h+ H4 r
- WiFi.mode(WIFI_STA);/ w/ T9 \3 w+ w5 }( F% ]
- WiFi.hostname("Sparkle");
- t' J% I, ~9 `8 l4 P% _( ` - WiFiMulti.addAP("wifi ssid", "wifi password");; C% u, L( ~& W7 I
- int tryNum = 15;5 [8 c; T" l# p1 l( }3 L
- Serial.print("Connect WiFi");- ]4 X- t; A" z' D
- while (WiFiMulti.run() != WL_CONNECTED) {+ w% Z/ o$ h* \4 h
- digitalWrite(2,0);. X7 p% p5 O4 G% R# c( @
- delay(200);
& a6 v* B1 L% ^$ g4 w# M: l - digitalWrite(2,1);
4 _2 w! ]7 H' `$ H4 o# |: y6 _+ | - delay(300);
) l) R. g" L h/ }! i% A - Serial.print(".");
; ^+ ^) ~& L( Z) O0 ?! G( { - tryNum--;; z) n. f2 w! a0 h, l/ W" U9 W9 J
- if (tryNum == 0) {
* X& k2 B8 a. k6 \+ V - // 1min
/ n( F) S8 Q+ B - // ESP.deepSleep(60e6);+ A0 y4 m. ?6 ~: z5 e4 M( z
- ESP.deepSleep(0);; n8 m- m- i' K: ]' s9 E3 p/ u
- }
' I+ g) d0 k" p# ~" ?0 |8 C1 y - }& Z/ q) T5 D8 l: K6 P! q& R& O! E$ ~
- Serial.print("\r\n");
+ m) \' ?, P0 z2 k% H/ v - digitalWrite(2,1);5 T, [ s2 h, a$ R
- Serial.print("IP address : ");
% t+ Y4 Z1 i7 G0 O6 ?. c1 d0 m - Serial.println(WiFi.localIP());
6 O8 Y' U6 z- N5 Y9 ?* ~& C5 w - server.on("/", HTTP_GET, [](){
; ^ H7 M$ [2 r5 A - server.sendHeader("Connection", "close");
2 n8 Z/ P, j) M2 D - server.send(200, "text/html", serverIndex);
+ Y* M+ r- q, s" s - });9 }' E$ m- a/ U& N. y2 g
- server.on("/update", HTTP_POST, [](){
" F, _8 E K5 a3 x - server.sendHeader("Connection", "close");- @8 H6 x2 j/ I/ R, \: T5 U
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
3 t7 F7 E" x w8 s+ ` - ESP.restart();
; L0 v6 S" I0 U - },[](){
) T/ F" K- A. n$ [* |7 A4 E+ d - HTTPUpload& upload = server.upload();
0 ^# s7 I, T3 _) v4 J - if(upload.status == UPLOAD_FILE_START){
4 M- X& W2 Z+ R+ B - Serial.setDebugOutput(true);
: _) \, j! _- X# q" b7 g - Serial.printf("Update: %s\n", upload.filename.c_str());
$ H* B+ S; Y$ A - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
- o5 E: `2 d7 X! {; ~ - if(!Update.begin(maxSketchSpace)){& }: T, S8 s9 ^! I/ _' s
- Update.printError(Serial);9 b" i2 T+ w8 A0 Y
- }: `6 \$ I( ?+ w9 {* i
- } else if(upload.status == UPLOAD_FILE_WRITE){
: y& d w2 N" r/ D' @0 }6 V3 R. l; R& P - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){& x+ q* @6 `4 R; w' Q9 @
- Update.printError(Serial);
3 C) o5 U( u/ x9 k' B* [5 A - }
7 D- J8 ~* D/ [/ P - } else if(upload.status == UPLOAD_FILE_END){
4 I& E0 M6 O- K: H - if(Update.end(true)){
- a0 D0 D A% u1 U& b; N% ? - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
5 O. k, Z0 b9 p, n0 v7 _* @8 G0 I4 s - } else {. t7 q g- z1 o% a2 v
- Update.printError(Serial);+ z# [: c2 z4 O7 m3 o1 X
- }
, {4 ~8 o% p- v+ u( T - Serial.setDebugOutput(false);
3 o9 u5 u' N: A, Q& E - }, W7 o. m9 g( S; z7 T6 g* r
- yield();0 ]' R* O. t8 i* V: n
- });/ {0 |; r, ^( C3 E
- & h6 T! Q T+ ]4 q: T, w
- digitalWrite(2,0);8 \% m# Q. T/ N
- mainAction();
$ k% N! f/ F0 J' M( j - if (digitalRead(0)){
* f" n$ D/ y S5 r0 C - ESP.deepSleep(0);+ o$ {' j6 ]- G
- } else {
9 V$ h7 {* Q n' a0 K - server.begin();
6 f6 C* m' f1 w6 `9 j% { - }( `: D% L4 U% Q
- }) R" T7 g7 e4 h
- void loop() {
7 g: J0 C* x6 k4 L" ^ - server.handleClient();
. I9 M- `1 b8 c - delay(1);2 a* x8 Z: o/ F! W5 j C% X/ q2 |3 I
- }
! n4 t8 O5 \. A/ N; E/ S8 i9 k - String doGet(String url){" Z2 H0 B* ?+ Y- |* C
- if ((WiFiMulti.run() == WL_CONNECTED)) {
2 `1 e. P8 R2 t* T - HTTPClient http;
" M4 M7 y% `: u+ u - Serial.println("[HTTP] begin...");
' S4 T) q5 b; ~( E, t: i - if (url.startsWith("https")) {
2 l0 U4 J' `$ }# ^) D5 a* K - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
4 D ^+ y" V9 c I" y. v - } else {
8 c" \1 e7 q# G1 W7 ^& @$ _ - http.begin(url);
( g5 X" h" Y* n, h& _5 a" X3 O - }
7 w/ H. J9 [/ S$ e8 }% p - Serial.println("[HTTP] GET...");: w6 ~* B* K2 V- O- C. C1 E) Y
- int httpCode = http.GET();- r! E5 l! K4 X2 v% V8 l( W0 G
- if (httpCode > 0) { n0 ~- @9 c; v! ^2 N: o6 Y7 K0 `
- Serial.printf("[HTTP] code: %d\n", httpCode); M# ~+ F4 p2 w3 q. o
- if (httpCode == HTTP_CODE_OK) {
3 w( o! f' ~: r, k8 e - String payload = http.getString();2 ]' m; ]: y6 \7 ~- L8 X$ p
- Serial.println(payload);( t7 Q, O4 [, G
- Serial.print("\r\n");
% J n+ r4 M8 q6 M6 n3 [ - return payload;8 H0 c! C2 o! Q' B i- M4 f7 M
- }
8 g1 w8 @. V6 h5 ]/ A& a% x0 l - } else {
) d* l' d4 I4 i, f* M - Serial.printf("[HTTP] GET... failed, error: %s\n",! ] ]) A9 T8 R) C) Y! }" Y) B; a
- http.errorToString(httpCode).c_str());
% I& Z0 L' `3 }3 t0 {3 g: k+ [. T - }
; z( S! _+ @2 ^* ^1 A5 j( H& {4 b" A - http.end();0 h4 I4 {* ^3 Z" _
- return "";
* Q1 o% l) b) Y `2 n - }
7 j5 E, W+ B: H4 D) h0 G - }% @+ C- s6 A' D7 H: [& E
- void mainAction() {. H8 S& U" N+ L8 R; a1 r
- // 发送请求
. q% }9 D2 [# B7 Y( H+ D& c* D; u - doGet("http://google.cn");2 y" C' d: p4 ^! C5 Z- ~
- }/ C! i- i* b0 m0 d+ ^; b# P6 K' @
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