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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)
- B/ a% H0 {# e: i- #include <ESP8266HTTPClient.h>$ Y8 X) B6 X: [$ z; {$ k, B7 J' T0 b
- #include <ESP8266WiFi.h>* P7 V" T5 T* [/ ?. v. i
- #include <ESP8266WiFiMulti.h>( F: a- v7 [% ]4 I
- #include <ESP8266WebServer.h>! s, |+ v9 A$ s; V) R0 W$ h$ ?
- #include <arduino.h>7 M! Z/ m6 Y2 Y; W% b
- ESP8266WiFiMulti WiFiMulti;
1 K% \2 a @6 N6 r5 Q, ~$ G; J - ESP8266WebServer server(80);+ H7 z( y' C1 f/ t' ~
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";+ k$ S- ]9 O' ]! [3 b3 C1 k# o9 f. l
- ADC_MODE(ADC_VCC);0 A3 N+ j5 F) Q
- void setup() {& ]( M( X" c. _* F: X6 }
- Serial.begin(115200);
) P% @# ~% \( M* B' T7 H3 Q - Serial.print("\r\n\n");# z% F/ d: `7 y- M8 r" t
- pinMode(2,OUTPUT);& [& @: O. W' s8 y1 @
- // WIFI' J @- W3 H I: N+ n
- WiFi.mode(WIFI_STA);
s8 z% E2 x; G! [" I( F - WiFi.hostname("Sparkle");8 ?% v q3 B V% M6 W. t
- WiFiMulti.addAP("wifi ssid", "wifi password");
9 Q, Z2 b' O5 p; S4 Z G - int tryNum = 15;
2 X h5 x9 F ~& Q - Serial.print("Connect WiFi");/ L" m. \: c9 m8 g5 S
- while (WiFiMulti.run() != WL_CONNECTED) {
5 R' e3 H% @8 G2 l$ e - digitalWrite(2,0);
; O- ]3 f- a( X! _ - delay(200);+ T" F, w7 @* }1 R3 ^- k7 ~5 x
- digitalWrite(2,1);
3 k0 v( V' U8 ~9 x - delay(300);9 o6 s# g+ _; E* R+ \/ x
- Serial.print(".");
! p0 m/ s K6 M! V/ z4 l) O - tryNum--;* J4 y1 l. t* N8 A
- if (tryNum == 0) {
1 y0 _5 q0 @8 U4 E2 d) X8 @ - // 1min0 m2 D$ p0 Z* A0 A6 q) D
- // ESP.deepSleep(60e6);' i1 L. k p& z
- ESP.deepSleep(0);: @& E- K+ k" C+ C5 E2 i& b
- }
- V9 i+ d5 g4 V. Q; g - }2 I- o E! J4 i9 `+ ^+ g
- Serial.print("\r\n");
/ F5 W3 k8 D7 f$ J, j - digitalWrite(2,1);! r* [, [! j M }$ F
- Serial.print("IP address : ");- p5 E1 Q" k8 |) G
- Serial.println(WiFi.localIP());
$ @) v2 w: R7 A9 Q7 e! B - server.on("/", HTTP_GET, [](){# `+ `1 P6 z8 C
- server.sendHeader("Connection", "close");
$ `- y& E- ?. D* G: r! G - server.send(200, "text/html", serverIndex);
. I7 g( V" u: L7 N# E/ y% M - });
- [* ?3 j; T+ m- \+ i7 E0 @- R - server.on("/update", HTTP_POST, [](){
( G7 e6 V5 w' O$ Q( D - server.sendHeader("Connection", "close");+ v$ G3 A, q! N( \# o* A
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
3 d# m5 A& q. k/ E f# F4 E6 N - ESP.restart();7 l( E2 h- L" F' J: [% w2 G- @9 c
- },[](){
) j# W1 j) k! N, H3 s6 d - HTTPUpload& upload = server.upload(); c+ b) y5 u# _' M3 }; ^
- if(upload.status == UPLOAD_FILE_START){
% b6 f: z& y7 M. b! H3 w - Serial.setDebugOutput(true);
, s3 d* y! ]; L! g - Serial.printf("Update: %s\n", upload.filename.c_str());
4 h1 {+ h% \5 ]$ C7 } - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
" a" U$ M' Q$ ]' c# B6 u - if(!Update.begin(maxSketchSpace)){+ F [. G% L& O2 Q4 U: [; _
- Update.printError(Serial);
% l: _1 s7 l9 W1 D8 N9 J o$ p: o4 } - }
9 j, U/ ?! q8 Z! i5 o - } else if(upload.status == UPLOAD_FILE_WRITE){
9 O4 b, O$ N% [7 M! k, \5 |2 |& s - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){( l" U( E3 J1 ~( m
- Update.printError(Serial);1 U- P; S" T, K% O, e
- }; v% V% E$ |6 Q
- } else if(upload.status == UPLOAD_FILE_END){
) W J8 q; P; K% l9 R. I8 h( ~2 t - if(Update.end(true)){
* }- M- b Y. Q/ Y' X5 b) W( F - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);1 U7 H: G9 S# N0 a' l
- } else {# i, n/ @; n3 ^
- Update.printError(Serial);
! D8 C+ ^8 ? F. _- a - }) ^# A! q Q$ s1 G) G
- Serial.setDebugOutput(false);- d% v6 u* L5 n5 z, }6 H8 }- E- H
- }! p. A4 }1 u- \
- yield();' i% o! H* N2 d, c
- });0 { i* d( Y% N/ N7 ~% \( d: n
- # l8 A* W# R( u0 V5 i
- digitalWrite(2,0);
6 L+ T. ]+ L z' F/ o - mainAction();
; k+ l$ P' g* H0 c - if (digitalRead(0)){
& Z# u, c* B, d: i f |6 T - ESP.deepSleep(0);
/ [5 x/ ]+ Q' b6 t4 d: I; l+ i% R - } else {8 p" `2 }7 D4 l0 r
- server.begin();
. e" B- U7 K0 j& f8 g - }" G9 [/ M* p' C' d3 E6 `* G
- }
- V% Z* ]$ b. W - void loop() {% l" j) M& V( {8 r3 h
- server.handleClient();
6 I6 J% S: O: d9 S5 P - delay(1);) v9 C. O( S1 y, F. N* ~& F
- }
) c4 k* x: t8 J, v$ ]7 O - String doGet(String url){
+ t6 p$ P$ w6 A: K1 `9 p" r# ?# Q. h" h - if ((WiFiMulti.run() == WL_CONNECTED)) {" t5 M3 S# T1 Z" E G
- HTTPClient http;
! b& E' }9 U% V7 I$ {, |# X: E( c - Serial.println("[HTTP] begin...");
; j5 c( X) z4 ]6 Q - if (url.startsWith("https")) {2 u U/ b/ J4 v1 p# j0 Y' X
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
; I3 e) ^; ]+ N# m% q% n2 Z - } else {
- }/ k6 r/ a9 A) {' C7 }. Q* C - http.begin(url);8 p" }& e1 M+ N' X' D* e
- }
. e; { j& M2 Z1 a1 \ - Serial.println("[HTTP] GET...");
7 h5 H( _. X; P. L: w - int httpCode = http.GET();5 u' ^& p& z4 H0 L% i: L; H# w; x
- if (httpCode > 0) {
! N) s; W' g- p+ C# g( I - Serial.printf("[HTTP] code: %d\n", httpCode);
, @- t& Q: ?8 [! @2 v, k3 J4 c - if (httpCode == HTTP_CODE_OK) {
8 Y4 D3 I8 X6 G9 E& v: Q - String payload = http.getString();
/ v1 b4 a0 s c9 X' R+ [ - Serial.println(payload);
2 i) G& k( L4 m$ A - Serial.print("\r\n");4 u9 ~2 A4 Q/ R. @# u; K
- return payload;2 Y L. t4 k2 D: H7 I% X" V3 v) b
- }
( E9 O, ?: E# h7 w# S - } else {4 z) Y: R' W! q, Y4 h- j4 ^( s
- Serial.printf("[HTTP] GET... failed, error: %s\n",) Z1 _& Q% j) a) w1 `
- http.errorToString(httpCode).c_str());0 G3 l4 g: g, S; x+ r7 e( G
- }5 Y4 Y+ i& w/ w% g
- http.end();
) r: z" J% r3 R$ Q$ ]* u, o - return "";2 M& o9 u9 D6 w) t1 ?
- }
7 h# a0 N* x% G/ T - }
% \9 n) W' x( y/ j2 \$ o - void mainAction() {
" D8 K4 h8 j/ p! N- p$ c - // 发送请求
0 C) N S- u/ k, J9 N. N( z/ Z - doGet("http://google.cn");0 Z% _* W7 M. y
- }
8 ?/ b& r% u2 f. G5 P ~0 p
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