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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)" _, n2 b* c5 N# `! j+ m' ]
- #include <ESP8266HTTPClient.h>2 b4 j* [" |# q) e- U7 b
- #include <ESP8266WiFi.h>
4 b# [2 h7 f0 g( \2 i/ O) z- k0 Y - #include <ESP8266WiFiMulti.h>
, c: e& h3 V, A. B- l - #include <ESP8266WebServer.h>7 e4 W, `0 \6 ~! z% q
- #include <arduino.h>& J1 e/ [ |, p4 _; w
- ESP8266WiFiMulti WiFiMulti;% t& Z( G* j) y2 |# I5 |
- ESP8266WebServer server(80);
' S5 q4 j- U( }' J+ } - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";0 w" H0 k* ]7 W
- ADC_MODE(ADC_VCC);
/ X( K/ |: N$ }2 d8 V* t) F7 s - void setup() {% @ b, C" o* v j+ q, g, [
- Serial.begin(115200);" x* o% o" ?% a+ u% }: {% t
- Serial.print("\r\n\n");
* P5 c; }( o# W2 ^( w) r; J0 N" b - pinMode(2,OUTPUT);
! e6 e J% Y2 m; q4 S7 C - // WIFI
8 q5 e) t% m' `# `. T9 |9 _/ ^ - WiFi.mode(WIFI_STA);. F8 o6 i! I" B% y; l! H* h
- WiFi.hostname("Sparkle");# B+ m* ^3 u `* f8 Q
- WiFiMulti.addAP("wifi ssid", "wifi password");
- t0 p$ A8 _0 `! K+ l+ v - int tryNum = 15;
. q* c0 q8 {8 h ? - Serial.print("Connect WiFi");0 Y! {) H z5 F2 C- g$ g/ N
- while (WiFiMulti.run() != WL_CONNECTED) {
# o# A5 u; @6 `8 l) u - digitalWrite(2,0);* l: ]$ a- `% U3 p. W1 Z
- delay(200);" X) `4 ]9 i. M/ o$ r
- digitalWrite(2,1);2 y; W/ Q! E: O4 ^- f$ u# y6 i1 {. G6 b
- delay(300);
6 ?7 k9 @% E$ o; i - Serial.print(".");5 m2 S- @* m5 m# v
- tryNum--;" Y" n* U5 I3 c1 i! x, b
- if (tryNum == 0) {
: U. u, G$ d, Q - // 1min
7 w9 |" o* c A7 A1 y. l, ? - // ESP.deepSleep(60e6);( P% G4 V4 b; [8 F2 H
- ESP.deepSleep(0);( _% i4 g( V9 a u6 g
- }1 v8 g' [* j7 y# t8 T6 L
- }6 v4 U& v T; l& r/ M& x9 K4 |
- Serial.print("\r\n");
) G: ^; R( s9 F1 T& H. W - digitalWrite(2,1);
/ p1 t4 k) i) g, q& b - Serial.print("IP address : ");
9 ^# L+ b5 J% r+ u9 a5 H1 H3 T - Serial.println(WiFi.localIP());
C% A1 w0 ?! u4 s) D" b0 p - server.on("/", HTTP_GET, [](){0 _7 S: j3 i! f3 n
- server.sendHeader("Connection", "close");1 y+ j: d( y8 C" h# [3 c9 d/ `
- server.send(200, "text/html", serverIndex);( r& R/ d% e7 F
- });
) j& a4 ~8 J. K# n0 j$ C b - server.on("/update", HTTP_POST, [](){
5 G% k0 r. q: ~1 q: v/ A - server.sendHeader("Connection", "close");$ h+ C. T4 g M1 f7 k( ]- g
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
4 _( H- n( w0 [" h; Q - ESP.restart();% d' d; w! u( J! D9 Z" s+ @
- },[](){+ G* q0 I7 a# H& j& b/ g# y* a
- HTTPUpload& upload = server.upload();
% D6 Q. p" t6 \ F - if(upload.status == UPLOAD_FILE_START){
; {: q- J3 X. L! R9 k - Serial.setDebugOutput(true);8 m9 W' W( b8 `$ [
- Serial.printf("Update: %s\n", upload.filename.c_str());, w0 p( b# }; J) d+ @( A% k3 ~. }
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
. g X9 l+ }1 b- X% v2 L - if(!Update.begin(maxSketchSpace)){
8 [1 P2 g( B! }2 n& B4 V5 s - Update.printError(Serial);
( {" s/ O/ i; S3 @+ Y% d - }" ?4 h. I9 ]; h: A" s
- } else if(upload.status == UPLOAD_FILE_WRITE){
/ r2 `! Z3 G( W9 h - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){, b4 X2 Z/ ?0 o2 v0 n! S
- Update.printError(Serial);' i, x& c `4 j" T2 b8 H& S3 f
- }) M! _$ J# j; T) o% u
- } else if(upload.status == UPLOAD_FILE_END){
0 B+ [% g( {& A& I; v - if(Update.end(true)){
: e) b2 y( i: A- O& d - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
7 `7 ^$ E* B! o( j; h- f$ w - } else {
9 H% D) S9 U5 T9 x+ O# r) @ - Update.printError(Serial);
# G M) q1 m# A2 M - }: i1 k! K. S& r) J
- Serial.setDebugOutput(false);5 x; O) _. m4 ]1 M
- }
5 T0 ~2 P/ s1 x7 `' s- ~# i - yield();
8 F$ p. W0 Z9 l9 B/ v! I; a - });
x5 ]* o# ^3 |" }4 t -
) v' o" k% L8 q5 Y( V. r - digitalWrite(2,0);# _! b; m% g2 h6 a1 T
- mainAction();6 k0 _3 n. F; u b- n
- if (digitalRead(0)){4 l8 o) J2 F, k7 H& u' E8 d
- ESP.deepSleep(0);
7 ?5 x+ G2 K5 N' N' |$ s' g4 c5 i - } else {
; v6 w B8 V* [+ M8 w8 n - server.begin();7 y/ Y; @0 n. _+ ]
- }+ `: ^' S# C4 r6 K; }& D9 j8 A+ I
- }7 k6 {, i. `' _ Y0 L( X7 @
- void loop() { u- |* o# ?/ H4 s6 f( Z8 Q
- server.handleClient();
! i5 V; ]1 m2 ]8 { - delay(1);. n: |7 z! l( Q+ W) b% k3 C8 C
- }
3 M F; m# |5 A' }6 a - String doGet(String url){
2 R/ ]# ~& g" } - if ((WiFiMulti.run() == WL_CONNECTED)) {, q2 J; Z9 I, M |+ ]
- HTTPClient http;
6 {6 _0 i! d9 |1 U) {; |% ` - Serial.println("[HTTP] begin...");
( z( D- a. t1 E - if (url.startsWith("https")) {8 N! W9 z! H& u8 m* M/ b! M
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");: T8 }4 J! L) ^
- } else {8 V6 V; s( h, Q1 b0 D7 r- A
- http.begin(url);' }* x+ q- C" D8 q5 [4 U
- }
1 I& t5 u( h( i9 b. e - Serial.println("[HTTP] GET...");
5 C2 A. K6 U8 i! r, G - int httpCode = http.GET();
: T9 O5 N* d5 x7 ?; d - if (httpCode > 0) {
% V8 {8 Z( |! j& ^ [6 J, L7 j - Serial.printf("[HTTP] code: %d\n", httpCode);( y9 L! M- X) z: v
- if (httpCode == HTTP_CODE_OK) {
% ~% K0 ]9 F( e, f - String payload = http.getString();; z7 d' g2 H. B) {. j. J' Z
- Serial.println(payload);3 u" C8 ?& x2 Y2 o7 `1 q# a7 V
- Serial.print("\r\n");
/ Z- ], k+ z& F - return payload;0 M5 p' U* o7 @
- }
6 a( a$ o) D9 n( D1 f, O - } else {, M' ]: c5 h" b. q, Q
- Serial.printf("[HTTP] GET... failed, error: %s\n",! j, m$ R) E0 T R; ~$ C
- http.errorToString(httpCode).c_str());
8 s3 c/ E' P+ M - }
. s4 J, g. V* D8 D - http.end();6 c+ [2 b. g: b& L& Z0 d* H
- return "";
: H8 T9 _; w' s3 b$ d - }( g% u( i3 M) y- @
- }
$ r1 d) _. B, j6 w+ z3 u* e - void mainAction() {& a/ C/ R3 j2 a
- // 发送请求
9 p0 T4 O* l% M - doGet("http://google.cn");
6 n$ t3 p; Z q& P2 @ - }+ a" _" M" x# s7 |2 q+ U5 { Z" H
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