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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)
; ^9 @9 I- H2 ?9 D: d- #include <ESP8266HTTPClient.h>( p. K" @, V' d- Y5 q, u9 M0 O
- #include <ESP8266WiFi.h>
7 T$ C+ B O/ C - #include <ESP8266WiFiMulti.h>) _. Y& Y1 K* @7 ?9 B
- #include <ESP8266WebServer.h># _3 A0 a6 n* U ?0 q1 K
- #include <arduino.h>8 K2 ]. g: D5 c6 s: \
- ESP8266WiFiMulti WiFiMulti; s1 U! p+ p+ [1 D
- ESP8266WebServer server(80);5 X- O2 k) t* t4 h2 s* Z/ f% H y" ~
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
' v# j" D' V. V3 p; p - ADC_MODE(ADC_VCC);
( h2 W. `' Z* H! H9 y* r - void setup() {
7 H& y, `! n6 n$ R2 H - Serial.begin(115200);8 P' S8 K- _0 Y9 U
- Serial.print("\r\n\n");
+ g) v* g" j4 Z; ` - pinMode(2,OUTPUT);
- W5 Z% G1 x, G$ j' s# A - // WIFI* o( J$ C, R, X% G0 Z" J8 i* S
- WiFi.mode(WIFI_STA);, D4 a' x+ F+ e' h9 q6 Y
- WiFi.hostname("Sparkle");
$ n7 A7 S' F3 a/ }0 w - WiFiMulti.addAP("wifi ssid", "wifi password");, Z9 w2 o0 _8 A. @2 z. w
- int tryNum = 15;% Z' a0 g% X) W Z
- Serial.print("Connect WiFi");
8 c, Y( M3 S+ a+ [+ f - while (WiFiMulti.run() != WL_CONNECTED) {
5 x* U0 I6 r# S0 |3 U( P - digitalWrite(2,0);
% M/ I; I3 ?6 f - delay(200);
$ a) X6 g2 n) E4 n I/ k - digitalWrite(2,1);6 [1 Z3 }: \" a3 {8 }: N0 |; X: d
- delay(300);
3 n3 d$ A# L- m - Serial.print(".");1 h% x) y. r9 c- Q* P
- tryNum--;
' ?1 K& f* t; S0 ^! n9 q: u - if (tryNum == 0) {( I9 C% x8 H1 j; w
- // 1min
1 o% a1 f; A; k0 ^ - // ESP.deepSleep(60e6);
7 q$ b* Y& I1 X7 l$ U6 u+ n - ESP.deepSleep(0);, Z% Y j, j% f+ ]1 l$ r
- }
4 A0 i8 D- F" o% C4 t# c& \ - }
8 i6 |: A7 c5 X+ ?& g - Serial.print("\r\n");
$ G# z9 t+ q1 c5 O - digitalWrite(2,1);
. U2 a6 m% _* E& F/ v( }% n; q - Serial.print("IP address : ");
$ ^& U7 a9 Q4 g - Serial.println(WiFi.localIP());+ q. M5 P9 I$ N& {' |6 u) Q
- server.on("/", HTTP_GET, [](){
, r% X9 k4 B0 }/ \ - server.sendHeader("Connection", "close");; ]5 F9 ^9 p7 U, T+ D
- server.send(200, "text/html", serverIndex);$ b0 G! `0 x* ^" K, x
- });2 }3 Q2 M- a4 s8 n; D8 G3 d
- server.on("/update", HTTP_POST, [](){
, L/ @! j/ a/ q" k" p+ S7 N - server.sendHeader("Connection", "close");
) g8 N5 n+ q! ~5 o0 ~ - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
1 c: @$ E& I; b' C - ESP.restart();& a3 \& i) z# U+ ^4 I& b' q
- },[](){7 s+ \- i. s' D$ O
- HTTPUpload& upload = server.upload();4 W' |5 s' \2 Y
- if(upload.status == UPLOAD_FILE_START){
8 N9 P6 D# w: _% U& f5 L- C - Serial.setDebugOutput(true);7 u+ Z7 N8 w' ]3 P+ N' M
- Serial.printf("Update: %s\n", upload.filename.c_str());' x% Y8 Y, A/ b+ {
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;# k% Z0 P) ]9 ? f$ F* e, ^& K R
- if(!Update.begin(maxSketchSpace)){
; X6 A+ T# N) h9 |. B8 N6 ] - Update.printError(Serial);
0 U7 d* x" |) a( S. p - }1 @* M) j o# R, D, V$ Y
- } else if(upload.status == UPLOAD_FILE_WRITE){
) s. D% @; ~8 Q$ E' W - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){2 `) k6 y h) _
- Update.printError(Serial);: D: ?" [7 ^9 U0 a1 G9 |& P+ a
- }
% }! [' f7 |; i2 J - } else if(upload.status == UPLOAD_FILE_END){
$ L! N! i; |, J6 G5 J" x2 v - if(Update.end(true)){
* F+ {# J7 O* U$ b1 a- a6 Z - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);& B1 t2 ~' i6 H4 e
- } else {
* h. r* b# w+ x( O+ M: M" |# a - Update.printError(Serial);1 K- @( M% x& ]5 r
- }/ g( K' m( {8 w9 W- f
- Serial.setDebugOutput(false);& ]( N7 `9 w9 k6 T2 L/ v
- }- A8 H5 \; p L9 f- ^/ U6 T8 _
- yield();( t, T, D2 p% u' |( t
- });
9 r1 E! }& m' d. Q) H ? -
7 r' D; n5 ~, r: u - digitalWrite(2,0);
" ^" M9 ?( m0 p$ m8 T2 e0 n8 H - mainAction();
. A1 ^0 b! r# Q: U - if (digitalRead(0)){. _9 E5 u+ r5 X
- ESP.deepSleep(0);9 K2 V0 s+ g2 N% v
- } else {
8 M6 A5 n% Z* M9 }( x! X6 A - server.begin();
9 v# D2 g6 z1 i4 h# n# ~; b7 k - }8 A! ]) v: V7 _4 ?) D" N
- }5 D7 n. a/ \; X2 m
- void loop() {
+ k3 X* l% Z9 D7 l, D6 D3 @ - server.handleClient();; Q; J4 X( v3 U5 F
- delay(1);! |. ]& q( X/ G+ X
- }
$ S- a# e$ B7 G7 [7 j; y - String doGet(String url){
/ E+ J4 H2 |8 S. O - if ((WiFiMulti.run() == WL_CONNECTED)) {5 N9 }; n) {5 S8 Y7 \, b( v
- HTTPClient http;7 w7 M( M3 V2 o/ g4 S2 X( I' @
- Serial.println("[HTTP] begin...");: b8 y4 F) X- _1 H& c' v
- if (url.startsWith("https")) {+ n( E3 g$ p" z6 |5 P: z
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");# Z( `8 L o5 I2 R u
- } else {/ u# S6 K2 k- a0 @
- http.begin(url);
& O6 ~3 W0 \# h+ }) ~ - }( }! d& t9 }$ q1 i' H! u
- Serial.println("[HTTP] GET...");
* \3 o! w! R, x- R - int httpCode = http.GET();
1 y: l( W/ A. b; X - if (httpCode > 0) {
! C3 `3 i0 ~* w8 K* |7 F# A - Serial.printf("[HTTP] code: %d\n", httpCode);) d6 {, R& q$ H* N, j, i" I
- if (httpCode == HTTP_CODE_OK) {
( F9 D# I' ]! S M$ w# a - String payload = http.getString();% e4 A( |; G* \% N) P" t7 f
- Serial.println(payload);
1 V9 C, e- X8 `% O n, E" k - Serial.print("\r\n");! P" F9 t- o# e9 r# M! K) h
- return payload;
7 c# _/ g1 d! p1 n - }3 C: `3 E0 L" X
- } else {7 a$ E3 v3 L' ]+ y7 s
- Serial.printf("[HTTP] GET... failed, error: %s\n",
# W* Y3 z. `5 H0 I# _+ ? - http.errorToString(httpCode).c_str());
6 |3 c. {: ^6 g3 G - }7 I- d2 ]+ Y6 w7 p7 d3 k. g! _
- http.end();
2 _1 B1 R$ h2 Z1 B7 m - return "";/ m6 Z1 [* I* C, ]9 t: v
- }9 s; v" r( p- a1 ]
- }0 ]5 {/ I3 e8 O, e+ ]
- void mainAction() {
& y4 x! Y7 j5 `9 n - // 发送请求
1 Q0 p, X, Z# R8 O8 }" v - doGet("http://google.cn");
$ ~- g* S5 o! K+ w) F' x2 U* j! s - }6 g; x( P e N7 N
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