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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)5 `+ ? W& f4 ]( \) E6 V7 e
- #include <ESP8266HTTPClient.h>
3 J4 h4 x- J5 q4 J - #include <ESP8266WiFi.h>; [% l& t1 w- V# z+ x @% V
- #include <ESP8266WiFiMulti.h>
4 ~8 w! X# S o7 O+ B, V& R - #include <ESP8266WebServer.h>
5 o$ {6 s$ f* j9 V5 O/ u" a - #include <arduino.h>
% u$ E) O. ~0 N# d+ B4 m6 m4 l& U# B - ESP8266WiFiMulti WiFiMulti;
4 Q7 n% i h, S/ U0 ~ - ESP8266WebServer server(80);
* `( J% E9 S2 H% q0 O: b4 O - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
4 d. N V* H2 l/ S) K- A - ADC_MODE(ADC_VCC); ^% s+ n0 M) v9 z" Q$ H3 @4 b
- void setup() {
- _: I# Y! L5 c+ p8 T) B3 p @) k - Serial.begin(115200); }/ N: Q7 h. u
- Serial.print("\r\n\n");
/ S. w: v; u! u! P) {$ @" q7 S - pinMode(2,OUTPUT);
/ v2 _$ @$ }! H! B2 C& z - // WIFI0 I4 n% P* _ B& G" ~+ r
- WiFi.mode(WIFI_STA);
' W6 q( u- \/ P+ ?3 v6 [/ @6 O0 S - WiFi.hostname("Sparkle");' S8 Z/ h: t' d% ~0 J. j# W
- WiFiMulti.addAP("wifi ssid", "wifi password");
( s, {9 @9 S+ ~ - int tryNum = 15;" I0 n4 D4 i4 m. @) }: u
- Serial.print("Connect WiFi");" D6 x* `2 h, ~1 @5 k8 R
- while (WiFiMulti.run() != WL_CONNECTED) {
! @* `/ G# O7 ], G: ? - digitalWrite(2,0);
4 b! [2 b5 s2 J) s4 Q) a6 f- f - delay(200);
7 a- n. w2 Y2 ]3 x) x - digitalWrite(2,1);# Z! E5 a X6 g" j0 I1 p
- delay(300);3 x& d' o" U% X s* o. a" z
- Serial.print(".");0 `: C9 J; \) |& A5 y" \2 J
- tryNum--;
& u& s4 w8 }$ }& \6 T - if (tryNum == 0) {
: v* t8 ^! A7 w3 D1 x* Y - // 1min
( ?: P% _9 J o% n! V1 q& @ - // ESP.deepSleep(60e6);
+ }9 Q( [0 P, ^2 e7 U - ESP.deepSleep(0);
2 o8 e1 H( I% h- L - }
) f0 }+ i0 o& W. I& I: E - }% m/ k+ g+ A! c1 w* O9 V
- Serial.print("\r\n");# V9 E; H3 @' D7 k4 \! t3 @
- digitalWrite(2,1);
7 \4 \6 b0 C1 Z- H; M6 Z7 [4 d - Serial.print("IP address : ");! v: `2 a7 T5 G0 h& ]' i
- Serial.println(WiFi.localIP());
) m) W1 M- [# Q+ C - server.on("/", HTTP_GET, [](){' q$ D7 g, i( R
- server.sendHeader("Connection", "close");
9 k$ C( y) l' A' U( ]7 J - server.send(200, "text/html", serverIndex);
3 O! ?* m$ t* C - });
0 r- I( W+ I- J0 P5 ^, D( _4 g - server.on("/update", HTTP_POST, [](){ ]2 F: c* t' q
- server.sendHeader("Connection", "close");: D1 H. c: A. r: `( U. ^- e9 l1 y
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
3 S! \/ u9 v7 X3 O( x- I - ESP.restart();2 Q* W9 e$ k& F' ?! W- I( k
- },[](){5 c' W% l4 l T" i
- HTTPUpload& upload = server.upload();' ~( E( ] M. N' [; [" ]( L
- if(upload.status == UPLOAD_FILE_START){
8 L; O! E" x* N$ U) t) S& c' G) _ - Serial.setDebugOutput(true);
) k _' y" a0 m- v9 X" H2 h4 J5 l! a' t - Serial.printf("Update: %s\n", upload.filename.c_str());# f" n+ C4 `1 ~9 N
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
! y5 W7 T% j/ K7 ^) C - if(!Update.begin(maxSketchSpace)){
" W* [; m# w9 f5 U/ O' n8 G - Update.printError(Serial);
+ M: D ~& ~( Z `8 K - }, E3 |; a: C! M" f4 x! J- \1 a
- } else if(upload.status == UPLOAD_FILE_WRITE){
1 d/ A I8 w$ s8 d8 u - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
1 O* |0 P Q' l" N( i - Update.printError(Serial);
- N- P. l. ~/ o/ t& u ] F - }
0 L W2 `$ g& I; j - } else if(upload.status == UPLOAD_FILE_END){5 Q1 O" I1 S5 @* y
- if(Update.end(true)){
0 E( ? X4 w' ]( y- m. |2 H* A - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);5 N \- Y! J0 \7 W" q0 b6 M
- } else {
+ ^$ W$ u" @' x* u2 O! U - Update.printError(Serial);" g9 v. P, P* z$ p9 _
- }( F: E4 u& w" x$ ^ I `4 t+ {
- Serial.setDebugOutput(false);) g- I: ]$ l; \: I6 M% E7 ^7 W
- }% \ M6 E* e- w
- yield();
6 r: i0 c: Q! ~* M' W: O - });
, `% w! G, Y" b4 V - 0 R: n0 a/ O9 r, K7 Q) U% b9 W
- digitalWrite(2,0);
: _! Y5 |, d8 w5 f! J9 o; K$ G - mainAction();- d y, f) w5 z7 R0 x
- if (digitalRead(0)){/ n$ @- \ C k' k
- ESP.deepSleep(0);8 b8 z$ |, ?2 R4 }3 d
- } else {* ?. }# w" W, c, c+ N
- server.begin();
U7 y5 ]% d) v. ?: t+ H- ? - }
" H7 f7 U n$ I# K - }
9 y* ` D8 k. j7 u5 m$ m6 F# m" L - void loop() {
8 |/ O2 m L$ [1 s6 s# d - server.handleClient();
0 r& G5 k5 r5 B* `: X - delay(1);
) \ Q& d! \! F2 @+ t( m - }) }2 g+ Z. Y! R) B! N7 c
- String doGet(String url){* F( k# @5 E" r6 P
- if ((WiFiMulti.run() == WL_CONNECTED)) {
3 j2 K. c" k+ G% ~; k - HTTPClient http;" |' z; z6 Z, L
- Serial.println("[HTTP] begin...");' U) ~/ M% U8 n$ K6 u; B# w
- if (url.startsWith("https")) {
* N& p4 b/ a( N/ h% I+ w; {( z - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");0 K" M& v7 @$ b+ z& Q
- } else {
9 e& g: C! V, d' T, e7 }3 e - http.begin(url);
c; w8 }- Q5 K" n9 ]* Z. ` G - }
5 U7 `1 n+ e+ q% l- a% B0 X - Serial.println("[HTTP] GET...");
% E+ r) i& V: p - int httpCode = http.GET();7 Y9 v1 Z: S( v9 `4 d
- if (httpCode > 0) {
; [5 L1 I9 \! U( ~) T% Y& F9 F - Serial.printf("[HTTP] code: %d\n", httpCode);3 D! [5 f2 p7 p1 f- A9 R
- if (httpCode == HTTP_CODE_OK) {, A( R: z! T# q) O
- String payload = http.getString();
# P0 k. D. Z$ _# A; p2 Q - Serial.println(payload);( O# g( C Q0 F8 J7 y& o/ A: l
- Serial.print("\r\n");3 n/ C5 ^% u/ z5 K* _; P
- return payload;
9 l0 \2 i/ `/ s6 p$ R" X" y - }
0 r, }9 y2 l& g( Q$ z6 K6 w; ` - } else {
' [7 ? J$ i8 X- J8 U* P! v% M - Serial.printf("[HTTP] GET... failed, error: %s\n",7 M; J* O2 ]4 [' S
- http.errorToString(httpCode).c_str());1 S; K8 k) R8 r2 O0 C
- }. y' c5 y% v6 f% k/ p+ e
- http.end();
Y! e# ^( o: \. t - return ""; {0 g1 j L1 u8 }, w
- }
! P/ j" F: r+ z5 N& i( f* X$ A - }3 W$ M! z' Z; w* \6 }5 @
- void mainAction() {( p! l- N; I5 ^. c+ l0 H
- // 发送请求
, a3 A, d; O& b( f N4 [ - doGet("http://google.cn");
! V8 E& l) J' p8 ] - }5 J7 E$ u' J; j
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