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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): r% R. V! p0 i: ?% m8 Z
- #include <ESP8266HTTPClient.h>
7 O0 m! U# x6 M5 P, s - #include <ESP8266WiFi.h>
; q, b0 g+ X# S9 k- M# n, a- u - #include <ESP8266WiFiMulti.h>8 F1 Y2 G5 g/ G- i5 F# t
- #include <ESP8266WebServer.h>
) z% n9 q" _) R$ S - #include <arduino.h>
, @" R+ @( {$ [& \ p0 y5 z - ESP8266WiFiMulti WiFiMulti;
/ P3 H, ^6 E. Z7 V' }5 q6 \) K - ESP8266WebServer server(80);! ^3 Q: e5 c" D7 O3 @- c
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";) x$ Q- d3 k' k- e1 |+ m6 F
- ADC_MODE(ADC_VCC);6 j5 O! A% a; |; W
- void setup() {$ ]: S. `$ [: m T( `4 B# V
- Serial.begin(115200);; ^( ~ n3 G, N6 A8 A$ i6 S. E
- Serial.print("\r\n\n");
0 X3 M2 r1 [) s e - pinMode(2,OUTPUT);( @* H" c8 M v, ]
- // WIFI: t; c1 X$ u/ {
- WiFi.mode(WIFI_STA);
$ i5 ^0 x) e% C" @ - WiFi.hostname("Sparkle");) X' l$ h1 G6 [, Y6 k/ V
- WiFiMulti.addAP("wifi ssid", "wifi password");
1 x% T1 b5 _' |6 e/ T& O - int tryNum = 15;
" b/ `( ^$ _: T1 L& o8 D I - Serial.print("Connect WiFi");8 z( T8 p9 u0 Y1 C, @
- while (WiFiMulti.run() != WL_CONNECTED) {. Q% C: A6 u: q: O% o
- digitalWrite(2,0);
7 x, K5 u( g9 G0 ]0 z# l - delay(200);* N9 {/ c5 a" S; J! p" f/ {4 m/ ]
- digitalWrite(2,1);
: _/ T" y0 ~& E" T8 y - delay(300);
3 R, b& T; P3 s' M0 o* W - Serial.print(".");
9 U" U5 u" ~- |0 L3 D! J2 {4 _+ i - tryNum--;% b7 }) Q% P7 e! k' ?7 A7 a! @* W9 N
- if (tryNum == 0) {( s7 A& G+ c* G' r1 _$ [6 K
- // 1min* a3 o2 N! @* @; k* `7 M1 g" X
- // ESP.deepSleep(60e6);
0 X! x4 d' x' L w7 g - ESP.deepSleep(0);
+ m' P: ]$ S$ ^$ S - }; g* p1 T+ ]* F6 X+ S7 i7 [
- }
. s" B6 }" Q9 {" O. z - Serial.print("\r\n");0 j1 V, x! q9 x9 r, A* o; N
- digitalWrite(2,1);7 n) w0 K4 H, @$ `; j$ m* p8 @( J; g. T
- Serial.print("IP address : ");
" Z. j9 ?7 A" h - Serial.println(WiFi.localIP());
C; W# E, r" |8 q' t. C0 V - server.on("/", HTTP_GET, [](){( z0 p0 p. n5 Y% j+ T! d/ m& O1 v1 [8 n
- server.sendHeader("Connection", "close");
; d/ ]) J$ o/ {9 N" ?7 _. \ - server.send(200, "text/html", serverIndex);
: w& H4 B. z& Q) S6 p( B. m) f - });% u' p/ ]- I6 C7 ~# Q
- server.on("/update", HTTP_POST, [](){( |$ r, d3 n$ K5 y6 o
- server.sendHeader("Connection", "close");
& D# J* H/ C: M; | - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
) T9 B4 B/ V3 V0 O/ B" k - ESP.restart();
( J- o) ~% Q3 e - },[](){; t! S2 U" y6 n9 E( `3 q' v
- HTTPUpload& upload = server.upload();, G' C0 n/ n9 f5 K; @& Q
- if(upload.status == UPLOAD_FILE_START){6 S) I( T- _9 X, x4 H' m
- Serial.setDebugOutput(true);3 m" ?. r, X; g* g
- Serial.printf("Update: %s\n", upload.filename.c_str());
! E+ ~+ I# _% W" H9 L+ |# w - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
( {) }8 B. E8 \" h+ k - if(!Update.begin(maxSketchSpace)){
/ @8 C' n3 t9 @; ]: Z! ~6 z0 }% A - Update.printError(Serial);( D( k8 w% }' ~/ g4 q
- }, g: }5 L8 u: ? S
- } else if(upload.status == UPLOAD_FILE_WRITE){% ?( C% O4 o6 B7 l8 x" b
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
+ j: N+ C7 P P. B1 u - Update.printError(Serial);, L6 ]% K+ X ]# Y9 Q/ i
- }
# J1 I8 |* ^( ?, P L, i1 x - } else if(upload.status == UPLOAD_FILE_END){
0 L, U/ k, Z* E/ Z6 { - if(Update.end(true)){# G% ?: e. x; h' M1 \7 e, U; p( n
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);; A, a/ H% h1 H! F+ r" J
- } else {
' K2 A# s! P& j$ A. a; G, T - Update.printError(Serial);- {5 f4 }0 M& i0 ^" v8 o% W& h
- }" n$ ~* z3 n ?' N1 Q/ ^
- Serial.setDebugOutput(false);
/ D) n" Z' c6 Y8 J. ? - }
/ `1 x5 \, G. j1 U; v$ l - yield();' V6 V' C) m/ r( @- D
- });- _" r! l/ ]/ Y. f
- ' J* F0 a3 a$ S7 Z ^
- digitalWrite(2,0);: R& N B8 c# @4 l0 _$ ^7 x
- mainAction();( u/ E$ w( s/ Y: F# `6 U
- if (digitalRead(0)){( Y. a" @4 y) ?, y
- ESP.deepSleep(0);
2 f4 K# ^( P* m - } else {
+ x$ m6 J! Z7 Q9 @& m+ |4 ? - server.begin();
2 v- ]4 t0 y/ M2 e - }
8 L8 W' s# M0 @# a) s/ S - }4 E( l* Q' W! F4 p" |5 i
- void loop() {4 f9 A/ t% M& h. U0 N/ H. a1 L, V
- server.handleClient();
+ k, `4 ]( a# f6 ? - delay(1);* u) ?) o8 h& c9 Q$ H1 l
- }
( e4 \0 e' ^% g9 z3 h - String doGet(String url){
- D! o0 j( J1 m% s6 N$ k - if ((WiFiMulti.run() == WL_CONNECTED)) {
: ^" Y9 o; Q/ i1 {5 ? O0 g3 e - HTTPClient http;
" L9 l7 `& J- l& \9 ~8 ^! J d - Serial.println("[HTTP] begin...");
+ o" L/ n% X8 K+ t' O& z; s) t7 Q/ F - if (url.startsWith("https")) {, W! Y" Q+ \: l' x; {
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
F7 X: G+ e! F/ N* T - } else {. @5 H! Z( `* y `4 E
- http.begin(url);$ f9 C. ~' Y( }5 C" a
- }, A3 j0 q5 q" v2 L" R9 V; o" G
- Serial.println("[HTTP] GET...");5 ], V# X: X8 a$ X0 j! q2 l; X+ K* m
- int httpCode = http.GET();
y; p# r3 F* ~: A3 d, Z W1 X - if (httpCode > 0) {
b! }) p/ m# \# K( P* D - Serial.printf("[HTTP] code: %d\n", httpCode);
8 v6 F6 P* w) o& ` - if (httpCode == HTTP_CODE_OK) {
( F6 C9 v. R+ I/ l! X) I% y: G - String payload = http.getString();
& @( r/ G/ |# I0 B - Serial.println(payload);
; J1 l8 ~# l" g5 }/ c7 d - Serial.print("\r\n");
2 E% x; S4 {7 k- A: p - return payload;# y8 D4 w- n" r2 T4 g( o) s
- }
0 f$ W; N1 \% ?5 W: T) ? - } else {
4 o# U. I/ T/ o0 C3 E: A0 f$ h8 ? - Serial.printf("[HTTP] GET... failed, error: %s\n",
) ~( ]8 D# x! l( M8 q - http.errorToString(httpCode).c_str());) A# q1 E( h* |
- }/ E. x" V" ?2 x8 N
- http.end();" c- J' S H E C3 I- c' r' Q
- return "";
" U" o4 @# i" Y/ L - }
i$ c c) [7 W9 T - }. M6 n: [, I7 M4 f5 q9 h, O
- void mainAction() {
2 k& P( m T' f$ \, |7 e4 c! ]! S - // 发送请求
* c5 x7 [) i1 m* X - doGet("http://google.cn");( f" S* N/ L( K5 I
- }
2 D9 ]! V6 ]2 }
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