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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)! i( j, R' b% k# t$ e+ v
- #include <ESP8266HTTPClient.h>
% C3 o. L& o) Q& m0 k( }- z2 U& [ - #include <ESP8266WiFi.h>( s% b4 j+ W, n% i5 l* \+ Y
- #include <ESP8266WiFiMulti.h>2 y& `6 k k" @" C, z& @
- #include <ESP8266WebServer.h>1 ~% M$ h8 p% ^9 x$ D8 k, c* J
- #include <arduino.h>" m0 O; v6 L/ S5 g# ] |# i$ l% n
- ESP8266WiFiMulti WiFiMulti;
* b7 F' ]* c& ^/ S( z# r) K9 K; D - ESP8266WebServer server(80);' Y0 Z4 e* k) G: e7 j( D- o
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";1 w& { u& ?1 A& Y
- ADC_MODE(ADC_VCC);. t" e2 j0 Y9 D: R
- void setup() {2 `- P/ w' C$ y, S! w. c+ u
- Serial.begin(115200);
8 r0 V' W- u0 l - Serial.print("\r\n\n");( C4 |1 k! l5 [, O, h; J6 I
- pinMode(2,OUTPUT);
! N' B' p: |- F$ D7 v# W% W( W' S; x - // WIFI1 O( B. y# w5 p$ b! ` W
- WiFi.mode(WIFI_STA);5 |9 B! p6 B; X+ k% W
- WiFi.hostname("Sparkle");
, l4 y& n, S$ C$ l# K - WiFiMulti.addAP("wifi ssid", "wifi password");& U% `( N3 a0 A. _( F6 [
- int tryNum = 15;9 @3 i6 z3 K: {8 v" V
- Serial.print("Connect WiFi");! n! K+ k, R0 ?. }
- while (WiFiMulti.run() != WL_CONNECTED) {, |( \1 I2 L8 W9 x& A
- digitalWrite(2,0);3 d1 t; j/ n& d! `5 N$ e8 ~; Y
- delay(200);
0 I0 i2 c/ k! x5 _$ G) _. J - digitalWrite(2,1);; y! x0 g" b0 D. L& T. n! s4 h: C. B( j
- delay(300);
! C( c. S. g# v7 k - Serial.print("."); j& x: _9 ?: P8 }+ @, s% P3 C8 t
- tryNum--;$ R2 V+ E, x) f% N( L
- if (tryNum == 0) {9 X0 w* `5 x1 p+ U* j
- // 1min$ A: `6 m5 _) P
- // ESP.deepSleep(60e6);
- C/ X! v& `" s7 ?3 M: ? - ESP.deepSleep(0);
) A4 `# J" J9 `, S3 O - }0 h( u9 S' Q. [1 e' n! q: r
- }4 b9 o, P' M; s C: ?
- Serial.print("\r\n");
7 ~/ c8 d' L# \: N* I- S1 c - digitalWrite(2,1);
' {9 Y* p4 r W+ t& x - Serial.print("IP address : ");. o) F7 Y9 I5 D: B
- Serial.println(WiFi.localIP());
1 O, p# @: T) d- | - server.on("/", HTTP_GET, [](){, b) Q6 X0 C4 K2 a. Y" o( r
- server.sendHeader("Connection", "close");
* i5 F- r; p1 P - server.send(200, "text/html", serverIndex);
- c% M6 Y* W0 k5 H9 Q - });
, [4 L" z G3 `2 i7 z8 a+ a - server.on("/update", HTTP_POST, [](){! ]1 D+ m; c5 H1 {. s
- server.sendHeader("Connection", "close");
7 U) V+ c+ f4 m( U/ O/ W - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");/ \6 z( z# Z: a# V7 \
- ESP.restart();/ [9 y0 q4 T# a4 M' _& g
- },[](){
" e8 a: _, K* h( h3 B8 ]9 V% D( X - HTTPUpload& upload = server.upload();
- R" o- i6 K9 B! @ - if(upload.status == UPLOAD_FILE_START){- |1 x$ C7 l+ ~5 E
- Serial.setDebugOutput(true);; ~+ H5 \% v; d, f
- Serial.printf("Update: %s\n", upload.filename.c_str());
& c" I: ~2 r/ Y$ i1 e8 Y - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;; L* |3 J5 z, y! [- D
- if(!Update.begin(maxSketchSpace)){ }$ i+ u$ V" r7 K
- Update.printError(Serial);
$ `% t3 O# u* v2 s |/ D. d7 _ - }
6 J1 h- p% e9 z# a* Y - } else if(upload.status == UPLOAD_FILE_WRITE){
. x; o) P# A- _2 m5 F - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){% E$ @) W! Q' Z
- Update.printError(Serial);0 L# c& B% h* G
- }! k0 S% x6 X' G9 l5 H& J& a
- } else if(upload.status == UPLOAD_FILE_END){
8 j0 B! _- D+ ~ - if(Update.end(true)){; h. J5 f+ s/ x2 E4 u
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
) ]1 B) u/ t3 g# T2 h( U; q - } else {
+ R$ u" B1 v6 T" l* Q - Update.printError(Serial);' e8 H+ i2 j- B/ P$ X4 K
- }. O4 l/ u/ f( y* B
- Serial.setDebugOutput(false);+ g; o k0 t% s4 b @# x# p
- }4 n- y. V7 J& i
- yield();, `. H% Q( T) L* O! l* d) I
- });
/ @' F4 v$ v3 G8 i - 5 D0 N& F/ N" t: Q/ D! N
- digitalWrite(2,0);
) X7 }5 J) A. M6 f1 @$ R - mainAction();
8 R% h( V5 h# d; }: |$ v - if (digitalRead(0)){
$ D& k6 A6 p9 J4 ~* b - ESP.deepSleep(0);
' ^* B# [& B2 |2 u - } else {
; z( T: k7 r2 Q7 K# w4 ^4 \ - server.begin();7 {7 x1 W1 G1 M/ P# M
- }/ h" |( X% I- ^( T9 t
- }
) J) {+ z2 Q q# N5 { - void loop() {8 ?( L/ W; I% Q6 l1 N7 q
- server.handleClient();
: l% q+ b: T8 T. ^- U - delay(1);
+ |. ]# u, S% M6 V2 ?- b - }
0 M( J. t/ I4 I8 l* c; x3 U! s- d0 o - String doGet(String url){
4 v6 H, U9 R C3 l - if ((WiFiMulti.run() == WL_CONNECTED)) {$ @. \. H; T/ Z4 a* v
- HTTPClient http;
* A X: R9 Q' c( {: i3 X - Serial.println("[HTTP] begin...");! `2 E. W9 E, p7 B! l" ~( C) c6 z
- if (url.startsWith("https")) {
" V6 H1 n/ Y. ~' n/ m. ~ - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
1 a$ q% V/ }! z - } else {
1 L6 b! W5 F$ J: }) o - http.begin(url);0 s8 X; x/ q0 i# _: |; j; g2 R' W
- }
/ u- W5 H1 G0 Q6 J7 @ - Serial.println("[HTTP] GET...");
0 e( Y( r: K0 V k* d- _2 r; j ` - int httpCode = http.GET();
) q y, J% H5 W - if (httpCode > 0) {
7 y* v& k1 _: t, u. ?9 { - Serial.printf("[HTTP] code: %d\n", httpCode);0 n: q1 W% Y- d) f& E+ G, F3 e
- if (httpCode == HTTP_CODE_OK) {) m. b2 \' H" i6 \
- String payload = http.getString();
) G3 I+ Z* P- |0 d1 d - Serial.println(payload);
5 R( Q" C( o) I0 ?' O0 S8 c - Serial.print("\r\n");" n" V2 \9 g( V6 Q) |/ F9 f
- return payload;3 \, y8 k G& J
- }+ f3 f! S7 Q3 L$ e3 h7 w( f
- } else {0 o. A5 ]- \7 \2 F8 K# L
- Serial.printf("[HTTP] GET... failed, error: %s\n",; A% A( x; L* H2 F- W7 o. ~7 ^+ j
- http.errorToString(httpCode).c_str());
( g7 x, y& w. `+ Y - }( `# L( ^) q+ X7 b# t2 c5 }
- http.end();
) N( g: Z0 M/ b( C! {! Y - return "";# j* T$ |' ?7 q0 g- V
- }
. L; S! m$ t0 Y- Y# K - }
: d8 Q4 c. k! W0 r - void mainAction() {7 q Z7 I2 P+ r
- // 发送请求; V% ?5 e8 N$ P* P; f% E+ ^0 R
- doGet("http://google.cn");5 |7 C! E/ a8 S8 A9 B( l7 z9 t
- }
% e. P( J1 e3 ]4 \
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