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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) U7 c7 a6 l8 u
- #include <ESP8266HTTPClient.h>3 p5 @& p: Q) C# A! v% c3 x6 D
- #include <ESP8266WiFi.h>" z+ b3 O1 q* L3 c, I4 W. l
- #include <ESP8266WiFiMulti.h> \# A+ B5 D/ y- |
- #include <ESP8266WebServer.h> q( D" t6 ]1 K! @
- #include <arduino.h>4 S4 E7 n$ S" W, p, {1 I/ l
- ESP8266WiFiMulti WiFiMulti;5 Z$ \7 {: X+ K1 ^6 y; U p# A3 m
- ESP8266WebServer server(80);/ @- t) O" a0 k9 r2 P
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";5 C p8 ]0 X5 @3 l5 K& R P
- ADC_MODE(ADC_VCC);
9 Q4 y- U% W7 x4 N3 T* M% i. V - void setup() {$ @ s# o* \* q; G
- Serial.begin(115200);
8 \; U3 R8 ^- F Q# z - Serial.print("\r\n\n");, Q s* Q; ?4 d {8 y9 j& y) F' J
- pinMode(2,OUTPUT);2 B; X4 D3 M! t- N$ G
- // WIFI! M. \* ]8 `5 p. h. @4 ?: `
- WiFi.mode(WIFI_STA);5 @9 G. R' m3 x# J
- WiFi.hostname("Sparkle");, D& ^( Z* L* g1 t3 d1 t2 D- k }
- WiFiMulti.addAP("wifi ssid", "wifi password");
% a; K h9 w0 g% E - int tryNum = 15;
* `& m. t4 c- \1 Q/ I' g2 h- B$ R" G- m - Serial.print("Connect WiFi");; ? i# ~2 s( p: w% F% g
- while (WiFiMulti.run() != WL_CONNECTED) {+ N9 y2 |1 J3 E/ l5 d
- digitalWrite(2,0);
9 t6 C6 ]' A$ d/ O! o - delay(200);% r; G4 E7 p5 b4 c
- digitalWrite(2,1);0 |$ J8 A Z5 e ?1 S
- delay(300);+ P' {- W; I6 G5 L4 N3 ?) X
- Serial.print(".");, Z2 Y! S% W; I7 }
- tryNum--;
# S. T$ p; P N" ?* L - if (tryNum == 0) {# O6 q+ R ]6 K2 K# S: y/ L
- // 1min. e' V* K$ w$ m- j4 x
- // ESP.deepSleep(60e6);4 w; Z$ q# v- p2 \& i
- ESP.deepSleep(0);
7 G$ z+ M* M5 {' ]' W& ]2 S - }& n0 x3 W4 x+ D) D9 ^
- }3 ^# [5 t+ A2 _; y( B3 _0 e
- Serial.print("\r\n");
" k" m- X3 G0 Y - digitalWrite(2,1);9 q0 U, b1 @" r! e3 |1 Z2 r
- Serial.print("IP address : ");
' h0 { B( P- G" P" s( o. N - Serial.println(WiFi.localIP());
& C; H$ k3 F; ?' l) p - server.on("/", HTTP_GET, [](){
% P( I& d7 C& l% T8 | - server.sendHeader("Connection", "close");% E. u; |: |. n
- server.send(200, "text/html", serverIndex);
$ r* Q o' f" U1 P1 x0 a: r - });' n% I! L" H, G& U C) V% `
- server.on("/update", HTTP_POST, [](){
' O2 n( }6 J, [& a2 ~ - server.sendHeader("Connection", "close");
- m. K4 d& F, h3 {! | - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");# X+ s# \# ]7 X2 Q$ C+ A! e
- ESP.restart();
4 u, W" E4 D: t* N - },[](){
' U$ \. x' }' N9 P: ` - HTTPUpload& upload = server.upload();- h- `( u& a1 k, Y! j r4 n& |
- if(upload.status == UPLOAD_FILE_START){- w9 x/ z7 v) `+ Q. {6 Q5 }
- Serial.setDebugOutput(true);) h8 _/ s& ] C6 c8 j
- Serial.printf("Update: %s\n", upload.filename.c_str());" _# Z5 @* x( K0 S( H
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
7 c7 n8 `, Z. }. g1 ]; G) C& O - if(!Update.begin(maxSketchSpace)){9 e2 B. Q7 e# n) c+ U1 l: b
- Update.printError(Serial);
- l) Q5 B5 v, _, s) q - }; l+ A1 Y/ Q2 e4 Q6 `" d
- } else if(upload.status == UPLOAD_FILE_WRITE){
7 ?! p$ `/ c; E( s' i - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
. s4 V* d. ]4 S# B) z3 ]' X - Update.printError(Serial);
$ ^: F0 ^1 O- u$ F - }
6 ~. i3 a8 l: a, @2 T) k' ] - } else if(upload.status == UPLOAD_FILE_END){
( t1 `+ X. I8 ^0 h! g9 ~8 O - if(Update.end(true)){
8 d% {' p- V7 u* E2 R8 [ - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
0 i( ~' g% l$ Y4 m* I' B - } else {/ x+ m3 L3 V5 @: `7 p
- Update.printError(Serial);
; ]3 \" ^2 i; a1 A$ G; j( `4 ] - }( z3 p/ s- T1 ~; v' g& e7 a
- Serial.setDebugOutput(false);" e- x- A' M$ q( L& Z
- }
% B* ^/ B, E/ u! v6 o8 Z _ - yield();
/ _3 p% H7 ~' f- \9 Q3 u - });
7 r6 Y7 h/ k0 F/ O -
! U' {! K1 [& [9 G* t - digitalWrite(2,0);9 e" d1 h8 {! C b Z
- mainAction();
8 b- {( x3 K1 l! ] - if (digitalRead(0)){
1 m9 q& O6 U1 p/ O% B7 ]! G$ R: h - ESP.deepSleep(0);3 a; P! U2 M. r; b8 Z/ t- V; ?
- } else {. ]: `6 j& R4 j9 V% t
- server.begin();
$ I& Z3 w6 h# t - }1 s% |# O5 I: G& h( l9 v% R
- }
0 d$ i+ a7 N' p, s7 @: V3 F2 v - void loop() {
( | e. C$ K# b* ]8 ] - server.handleClient();
8 {" }- E1 c6 c6 ]% h3 G - delay(1);
( ?+ j; |3 }2 v" f+ z) H; x - }5 h: Z" U- ~1 A- l
- String doGet(String url){/ x8 t! _9 ^7 W G) P# j( Q
- if ((WiFiMulti.run() == WL_CONNECTED)) {* } H) G$ r8 ~
- HTTPClient http;. a8 {4 B( @' p8 X5 `3 q% ]
- Serial.println("[HTTP] begin...");! ?) O2 g4 s0 N! F$ K- u0 \$ P
- if (url.startsWith("https")) {
5 B8 ^# m# Z b1 i& f+ v0 D9 q - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");+ q7 ?0 q8 \, c$ m
- } else {, f4 F( v1 j: w; {3 D8 A
- http.begin(url);* x& l( B( p: d D3 Q' t
- }
: L4 T' q7 B' h7 M5 M: Z - Serial.println("[HTTP] GET...");
8 G1 U* {* w2 @' _4 a6 c - int httpCode = http.GET();1 V3 E+ l# H* V3 G; A% m/ R% v- i
- if (httpCode > 0) {
9 x# o t5 b8 K - Serial.printf("[HTTP] code: %d\n", httpCode);
/ t3 E0 x/ T( R# ` - if (httpCode == HTTP_CODE_OK) { Z R$ X# v% e. d/ _5 @
- String payload = http.getString();" x3 o: z ?, I% j
- Serial.println(payload);, y9 M6 p- l" ?" v& w9 j
- Serial.print("\r\n");
& K, w" C5 z( X. @+ Z- Z - return payload;
$ B9 K+ }; Z" L2 T - }! c+ }0 G3 E- x6 e3 w
- } else {
' G. { H! i5 A# ? - Serial.printf("[HTTP] GET... failed, error: %s\n",/ ?) W9 n6 L! i+ a- E' J0 G
- http.errorToString(httpCode).c_str());% m' m0 c: }% ]1 w1 E% m T
- }0 G/ h2 c' X2 c- R2 K i! M
- http.end();
! t- j. A% W; k& j - return "";
) M8 G( r1 n7 i& X* b* z: |; i - }
- o6 _% {7 J/ v) w - }; R- k7 k$ D+ V6 O/ Z# c( Q. r
- void mainAction() {& a% X" F) p: P3 o3 Z1 Q
- // 发送请求
! [8 T( P( V& T - doGet("http://google.cn");
* x# |# j6 K3 D8 X3 h2 b - }( j/ S0 A( f" _& \( [+ I) G
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