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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)! W. ]0 r& S- v! Z5 l* }* C- J
- #include <ESP8266HTTPClient.h>
6 t) ^. I( m% f6 a - #include <ESP8266WiFi.h>
! s8 _* D* M( y. O& M! L, p( ` - #include <ESP8266WiFiMulti.h>
, l @3 g( D7 q' u: [9 f - #include <ESP8266WebServer.h>
% w) ~* a% L* J! x - #include <arduino.h>
- v0 d9 t/ S. i* C P4 W - ESP8266WiFiMulti WiFiMulti;
4 n/ m+ W2 [- V5 B% d( x2 N G - ESP8266WebServer server(80);$ C! s- I2 M+ p
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
! r9 T9 A4 Q% O - ADC_MODE(ADC_VCC);
0 [: B5 r+ Q( k. N - void setup() {
; u' N! R: ^( k8 M7 V - Serial.begin(115200);
/ L7 O! d1 L6 ?: V - Serial.print("\r\n\n");. B. L4 ]3 o4 W
- pinMode(2,OUTPUT);
- ?( d! H9 G. F! ?3 b# F- J, I - // WIFI. v0 A! J2 R' `7 v3 w+ {& {1 M
- WiFi.mode(WIFI_STA);
/ |) ?, G" y# H% @# O - WiFi.hostname("Sparkle");; W n* s7 E4 K+ _
- WiFiMulti.addAP("wifi ssid", "wifi password");4 L0 d$ q' b) _( D5 E
- int tryNum = 15;/ i# R9 ]( @' g- w' L! a" E
- Serial.print("Connect WiFi");5 h6 f: S9 [: c ], c/ g! k8 S2 e
- while (WiFiMulti.run() != WL_CONNECTED) {
, b1 l4 L0 S% s3 {: \! ^ - digitalWrite(2,0);
2 \% w+ s# W* T3 r- G - delay(200);' D: f2 G4 ^% F2 M! r( w
- digitalWrite(2,1);0 |/ B0 S8 v4 D/ i
- delay(300);6 h' }. n/ R B$ t& d$ B% ^# R
- Serial.print(".");; K( D! \1 g2 w2 U: e) U
- tryNum--;0 m: R) r2 ]* u1 k
- if (tryNum == 0) {2 a+ P" R) ?* B2 P' k6 b
- // 1min
# r* L2 f k* }$ j1 v - // ESP.deepSleep(60e6);
8 D( G& f9 W6 x4 G6 Q - ESP.deepSleep(0);2 d) K4 {* ?$ W. z0 y: V9 @5 h3 l/ c
- }
' Z: e( M; o3 }* U - }
; w' ]3 l( X" t6 Y3 M1 S7 Q2 y6 K - Serial.print("\r\n");
6 x# a4 \+ C( T - digitalWrite(2,1);0 F/ q2 W1 t( h' Y' W z2 c( Y
- Serial.print("IP address : ");
7 L2 t$ I. d$ O& c4 W, y - Serial.println(WiFi.localIP());
0 C: U5 V7 ?( j0 a7 Y - server.on("/", HTTP_GET, [](){
: P% @) h4 [' [, Q* y - server.sendHeader("Connection", "close");2 V1 d: a! b% C) q; i
- server.send(200, "text/html", serverIndex);# t* F0 h$ I3 @1 S
- });
; ^8 F* G$ H. y+ A6 q, u6 G - server.on("/update", HTTP_POST, [](){
7 ]3 h4 h6 Q* p5 K. ], Z6 | - server.sendHeader("Connection", "close");
! }1 p6 W5 Y- O3 y - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
. L W2 P! X$ ^! u - ESP.restart();
1 t7 f9 Q+ ?# e; m! m' X - },[](){
4 H- R {6 {; B - HTTPUpload& upload = server.upload();4 F* ?$ W0 G7 r7 O& `
- if(upload.status == UPLOAD_FILE_START){
6 @6 o1 X" w3 b3 V - Serial.setDebugOutput(true);9 `7 O3 S' a3 [
- Serial.printf("Update: %s\n", upload.filename.c_str());* y( e6 u7 ^/ Q0 G8 J
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
7 l9 T% h6 ?) @; d# C% q) D+ O - if(!Update.begin(maxSketchSpace)){/ K1 I+ [- t; N) c4 U7 R: N
- Update.printError(Serial);
6 {) f' J% G* C* K. f - }( O9 J2 {9 `$ B5 H. |
- } else if(upload.status == UPLOAD_FILE_WRITE){( d% q i) f6 t
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){" F" X5 x3 K! d7 X6 |4 E
- Update.printError(Serial);3 \9 [2 A' Z3 Z
- }6 c7 ]" ^1 @( k
- } else if(upload.status == UPLOAD_FILE_END){( U; ?; C! [, ~
- if(Update.end(true)){# g4 i* Q( I1 l' q4 Q( C/ Z- M" G
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);9 R% C- n0 {5 Q) Z* I" f8 F3 w
- } else {3 g: K/ x0 P" K7 y" r" M! x' e
- Update.printError(Serial);* O: k! E' t! w* V
- }& H5 c1 E% [9 X: @. V i
- Serial.setDebugOutput(false);# Y) Y- N8 o: N; p
- }' p2 w, b0 S0 Q( u& e$ m# p9 E) D0 Q/ ~
- yield();
\2 @6 C4 j2 [* k - });2 @, G( H$ @2 q; g. i- u
- * v6 x3 v8 j' S
- digitalWrite(2,0);
+ h2 a: E6 i, P0 X/ q5 o - mainAction();
$ I' K3 [# |0 X$ J' G/ N' i! g - if (digitalRead(0)){, F. K ~( G' V2 g
- ESP.deepSleep(0);
4 b8 g4 f& r. ]( ^" s - } else {
0 m. ^7 d, s z; K! m, Y - server.begin();
* G4 B, _$ n) A8 w - } B& [8 I0 S0 ?) y+ R+ J6 U2 H
- }3 Z" [- r3 ?+ ^0 P! x
- void loop() {
- I& H3 ~4 V( G: c6 e7 \( X) N. X2 b5 f - server.handleClient();
: q9 B! n$ q3 {- \% e - delay(1);) d* [8 I6 j* b. k7 b# E. k
- }4 q3 `6 Y0 p- X6 h# o; w: O4 ^
- String doGet(String url){
5 k8 B5 a9 |/ U& a; ]' X4 A - if ((WiFiMulti.run() == WL_CONNECTED)) {; @, e( ?. S8 s, I7 }
- HTTPClient http;
/ ~; L$ N; P/ H7 z# O$ V! p - Serial.println("[HTTP] begin...");
0 T: ~0 X. t% S2 k6 O. Y. ? - if (url.startsWith("https")) {
) }+ q2 h- p/ A - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");) @9 z& W3 z+ {, T; R1 W4 H/ x! w/ t! m
- } else {8 n7 h4 u3 I" b3 X' H
- http.begin(url);+ \6 H: c5 D a0 p6 G
- }: ^! f* Y8 o; O8 M/ U8 }$ b) D
- Serial.println("[HTTP] GET...");
; t+ P1 p5 S; {2 {+ k - int httpCode = http.GET();/ {6 g3 U- A' F# D) h
- if (httpCode > 0) {( P A/ L2 R0 G6 t- J* D' U. C! I& E
- Serial.printf("[HTTP] code: %d\n", httpCode);
4 S8 v# L$ b! _2 Q3 \( T - if (httpCode == HTTP_CODE_OK) {
, q5 M4 x" P8 A% \; @ - String payload = http.getString();
5 W- Z7 X+ }! O1 p/ J5 l% j1 ] - Serial.println(payload);1 j1 }" ~4 [ ~& ?2 ?
- Serial.print("\r\n");
) O5 V! }: z* q0 H+ b% q4 S - return payload;
r+ d5 z" \0 H3 X - }1 W3 {5 a' Z5 j8 ^
- } else {( I5 b; _" o: A: {* W
- Serial.printf("[HTTP] GET... failed, error: %s\n",
& z' W1 w3 S+ ^ - http.errorToString(httpCode).c_str());* Z4 M! B( V$ w8 Z- ?5 X
- }
) H- T4 U/ J5 y7 c - http.end();
x, V" j% q5 Z - return "";8 n0 @% @0 O" l; _
- }+ t! T$ V' u' x! `
- }
% |# t0 _' W; U* n+ ^/ B* y' U- s - void mainAction() {* ^! C0 Y2 J. _ [; m$ K
- // 发送请求; A: J# k+ ?0 j5 v9 |5 F* \; {
- doGet("http://google.cn");: J" Y3 W8 i4 A9 b2 W+ D
- }
8 I7 M" B; [+ A8 F# a {
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