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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)
2 C- N, u5 m: v8 g. [. g/ J- #include <ESP8266HTTPClient.h>5 K, N4 E8 O0 c$ ?4 {' b7 ]2 y
- #include <ESP8266WiFi.h>5 p0 v2 F* x: _: m
- #include <ESP8266WiFiMulti.h>
) F$ n' X5 W$ V+ ^: _ - #include <ESP8266WebServer.h>/ P2 B- p3 Y. `5 {& D" f1 I
- #include <arduino.h>
c: W0 I, G) o7 w; V- V - ESP8266WiFiMulti WiFiMulti;
) {& p0 `8 R1 V! D: e% R) e( { - ESP8266WebServer server(80);
F$ c2 D8 B z0 | - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";& X2 K9 ?5 Q/ W- j- T
- ADC_MODE(ADC_VCC);
2 }. u) u9 l4 W - void setup() {" S2 u8 k, }7 b# G( L0 y4 _! A
- Serial.begin(115200);
& C) R7 }: ^, C z' S - Serial.print("\r\n\n");9 f/ V0 q( m: m8 X; y
- pinMode(2,OUTPUT);
. O. D) Q$ U v/ ~ E - // WIFI& g. i0 Y% e! G8 P2 K, P; z
- WiFi.mode(WIFI_STA);
) d1 x% A7 |7 e3 \ - WiFi.hostname("Sparkle");4 y2 M: p b P" B9 R
- WiFiMulti.addAP("wifi ssid", "wifi password");
+ |' B& z8 z& f" j' m' r - int tryNum = 15;4 K$ L" J8 m/ {3 l" O
- Serial.print("Connect WiFi");
) [- {' }) o# H" g - while (WiFiMulti.run() != WL_CONNECTED) {
& l5 @+ `$ B- z2 m( p - digitalWrite(2,0);
1 N V) L/ }2 F( [% [ - delay(200);
+ {" M' g0 V: ?; M3 o/ f - digitalWrite(2,1);* d1 R7 \- r8 z4 N+ p# D3 G
- delay(300);
9 G* P' T9 J$ V' o3 o - Serial.print(".");- X9 A4 ?! {) r1 r( F' n0 l2 X
- tryNum--;
' G5 E5 v2 {1 | - if (tryNum == 0) {
$ X2 O. G8 h) Y0 I - // 1min6 A- n! }+ n2 P7 Q* w: n$ K
- // ESP.deepSleep(60e6);/ J+ |6 T+ l! q9 J
- ESP.deepSleep(0);
; }) |8 D2 K; r7 ?3 h& j3 U - }
- g% e. j/ P7 @' K% b - }& v0 v& N+ E' K; A
- Serial.print("\r\n");
- n. x' d {- U" V1 b/ a - digitalWrite(2,1);
$ x# v8 v- n2 B& R5 _9 L - Serial.print("IP address : ");
5 X6 L3 [! U! P1 W/ D - Serial.println(WiFi.localIP());& O5 v4 Y& F, b! s
- server.on("/", HTTP_GET, [](){
& k" K; W) j, }$ T - server.sendHeader("Connection", "close");( l4 Z. @7 D+ c& x
- server.send(200, "text/html", serverIndex);
! q7 V T( A% S6 v, B - });3 P6 r) S6 w- Q* a% P' Z
- server.on("/update", HTTP_POST, [](){+ e5 ?6 t# g+ f! E% v! ^ m; u
- server.sendHeader("Connection", "close");
' A V- F$ n+ Q) F - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
. M3 e# H5 k2 A. J$ v, Q - ESP.restart();) W8 z2 _# B6 L# U
- },[](){
- H; E9 q* K0 p" }5 k - HTTPUpload& upload = server.upload();
$ [, N2 I; Y7 \6 Y8 n+ H - if(upload.status == UPLOAD_FILE_START){ d' Y9 [2 K2 P* G) s- c
- Serial.setDebugOutput(true);
: J; V. C5 F3 {$ y& O - Serial.printf("Update: %s\n", upload.filename.c_str());
% l# j4 p' N4 h# n- o/ N - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
/ H, {) [% Q( [ O2 X, i1 b: q8 c4 R - if(!Update.begin(maxSketchSpace)){
, ]& N7 D0 \+ k: D) Y* m - Update.printError(Serial);
8 o2 u3 E7 N& v2 g; W - }" ~0 M0 H5 P/ d1 f
- } else if(upload.status == UPLOAD_FILE_WRITE){
' U/ k% u% x% ~5 e _9 D - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
0 { F' ]4 `4 u* ^4 J - Update.printError(Serial);
1 x5 f' {( o2 t; b - }0 d% F" o% e6 Y4 w4 t; Y3 p
- } else if(upload.status == UPLOAD_FILE_END){
' h0 S6 O! O& g; ]8 E" u/ Y" U - if(Update.end(true)){
- t6 f% Y( z) R& L# J! [ - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
8 p2 ?8 I" o. ?" J - } else {
5 F8 J+ L9 K. d- x; I: w0 `+ e - Update.printError(Serial);
6 Y* G0 n& R8 k) [# R4 f - }
) ]0 Y9 M6 H# ~# f! W1 V" Z - Serial.setDebugOutput(false);2 s/ e4 ]1 [7 s9 e
- }
4 d( u7 |6 A( x# f2 p - yield();: u' n( P' E, H6 D' ^. E
- });
4 _- u) i3 A: F2 t2 i9 \ - 3 z: s- x# U7 _8 y8 _
- digitalWrite(2,0);
$ p* C7 l, U& o/ F y - mainAction();
+ ]) V: R% B$ \; L; R - if (digitalRead(0)){
0 W* v$ r" X& t; u; V& v - ESP.deepSleep(0);
8 q: k$ q) N7 O" A% \ - } else {
! a0 n# y% m; v: J2 Y' Y% _ - server.begin();8 R" i" R( }. j8 ^) a4 c7 a8 ]5 {
- }; G; i" ]% L: A
- }1 i6 U* q/ L+ _$ T5 Z- B9 R
- void loop() {
5 {" Q7 i1 H- ?- [ - server.handleClient();1 _, S4 }4 y3 r( T* W1 { j9 |
- delay(1);/ W& c8 N/ a) r I
- }4 k# g/ f4 Z( e* A( U
- String doGet(String url){
. I- ?' K" l1 ?' a0 k - if ((WiFiMulti.run() == WL_CONNECTED)) {
0 K1 K8 o4 Z4 x& A$ ?/ I3 K - HTTPClient http;6 w O. L, Q5 |8 }9 E
- Serial.println("[HTTP] begin...");, |! ?' B9 I# J9 z, ^0 l
- if (url.startsWith("https")) {* @; x# r' n2 ]( D7 P4 a
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
/ K5 ]6 e3 k# ~& P! X* V - } else {* U! T% T! o3 }# E ]
- http.begin(url);" l0 c! `: Z' e( p
- }
) W/ K! k j7 M; s/ r7 ^! m# n - Serial.println("[HTTP] GET...");& W, a: q# W9 z% h; B6 F) l3 T6 ^
- int httpCode = http.GET();' U: [. C1 v7 `4 I* r
- if (httpCode > 0) {3 `1 A2 p, r, [4 M1 p: D- G
- Serial.printf("[HTTP] code: %d\n", httpCode);) y3 j$ w( K; a+ Z. q6 I# R1 k" L& Y% r
- if (httpCode == HTTP_CODE_OK) {
+ |1 S/ `# S* S+ B4 j - String payload = http.getString();
3 T& _8 z9 G7 r5 c) ` - Serial.println(payload);1 z6 X) A* u$ r' J% A
- Serial.print("\r\n");
5 M% f$ |- C- P" I - return payload;2 V0 d) ]' q5 J& k
- }
, Z; r2 ^4 I* w6 ]2 C - } else {
1 ^# _3 G) ]- K: c5 W7 {- N - Serial.printf("[HTTP] GET... failed, error: %s\n",: }7 d. O5 N" f. ~6 Z' ?
- http.errorToString(httpCode).c_str());
) U. Y8 \4 [2 @$ _# ~8 h7 q( ]# q - }
3 a3 d5 i: |# o1 }' g- F$ v% E - http.end();, Q3 U- Q0 S2 N$ {% q6 O
- return "";
2 w$ J4 Z. V( k0 p |4 \ E - }, m& `; ~' v! I8 i
- }) t5 \; X8 a: u9 Q
- void mainAction() {
3 X I$ k% ^/ f/ O - // 发送请求' F1 y4 b7 V& O/ B# L8 j/ e! `
- doGet("http://google.cn");
" v# t8 F, O; t! J - }. q, O+ [! o2 B9 P" N+ I
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