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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)
$ N7 B# K, z; B5 y9 G- #include <ESP8266HTTPClient.h>7 z# k/ F- ]0 y# a- W4 V
- #include <ESP8266WiFi.h># l3 F4 s9 o- p
- #include <ESP8266WiFiMulti.h>8 f5 t) N. [0 M% P2 \
- #include <ESP8266WebServer.h>7 N8 V; e }- t+ Y( G5 z Y
- #include <arduino.h>
5 }9 A9 e: H% G$ Z - ESP8266WiFiMulti WiFiMulti;
1 s( k7 o+ K( k - ESP8266WebServer server(80);
1 B% g. R' b0 y. ?' e- g% n1 ~ - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";( N7 w. q& A% a! a5 N, C4 r7 o
- ADC_MODE(ADC_VCC);
* S- R. [, D% g# B d8 E9 K+ a1 |7 \ - void setup() {5 P6 P2 H3 ]% t1 p
- Serial.begin(115200);/ s3 T a- O8 o2 r
- Serial.print("\r\n\n");
- o2 n5 O, C* ]+ \7 W# |& a+ ] - pinMode(2,OUTPUT);
* U' @5 g- H c - // WIFI
! q8 n r0 R- J5 I - WiFi.mode(WIFI_STA);) C0 _% p7 w4 y" t& q) V
- WiFi.hostname("Sparkle");5 \, M' h: u- f; _) w
- WiFiMulti.addAP("wifi ssid", "wifi password");3 p8 y8 [) [# P% K* U$ B$ s
- int tryNum = 15;
& D2 s( v3 I- S - Serial.print("Connect WiFi");! O, ?% w+ v x$ n; l+ A
- while (WiFiMulti.run() != WL_CONNECTED) {& ^+ U! @7 ]' e* w
- digitalWrite(2,0);# i2 S: L" G( p
- delay(200);
& ?& c+ U* d/ A5 I( T - digitalWrite(2,1);# G# ^: L0 N$ k+ I, r% Q# c
- delay(300);
! f% F' T) w+ L5 A( k/ f - Serial.print(".");
0 z, W' Q% l5 ^6 Q X5 A - tryNum--;
( G4 _ r5 N: x* l: R - if (tryNum == 0) {
$ X$ R( x# j" x i+ P; m - // 1min( Z9 V& V9 c( E1 p
- // ESP.deepSleep(60e6);8 h9 K; x; w$ U
- ESP.deepSleep(0);
( @9 u( K5 }# ~- [ - }4 s0 x; L1 B0 K! M* R& Z8 ]/ x
- }% ]( I9 w+ h# J x
- Serial.print("\r\n");8 `: |1 o! i( g- f* Z* ^
- digitalWrite(2,1);
q6 `) q6 @, E; K6 R9 l( h8 i - Serial.print("IP address : ");
& P, Q" n' D( o' @8 m7 E - Serial.println(WiFi.localIP());0 U- y$ p5 L9 w& ~& Y7 _4 y+ j
- server.on("/", HTTP_GET, [](){
$ B$ ~; Y0 k5 r& _' K - server.sendHeader("Connection", "close");
; d) i. j% w7 o7 a- q- Y - server.send(200, "text/html", serverIndex);
: `: y6 V: n# m* R - });3 N6 a% a9 s5 N6 G R$ e3 I
- server.on("/update", HTTP_POST, [](){8 p7 M- U) \; i- B; ~1 U0 l$ H" ^
- server.sendHeader("Connection", "close");
) G( m H$ B' m& j* h5 Y - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
! [5 \+ H6 P' L2 {! ^ - ESP.restart();
$ H5 ?3 N/ _. D- y# T - },[](){
9 a: W+ g+ e% g0 S S1 E- ~' d- } - HTTPUpload& upload = server.upload();
7 Q$ e; y0 `4 F" E k" { - if(upload.status == UPLOAD_FILE_START){
) x& a+ a# @" B2 D - Serial.setDebugOutput(true);
3 s J- A8 E5 w - Serial.printf("Update: %s\n", upload.filename.c_str());
; I' P7 I9 N. ~- w - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
9 I0 Q8 E7 F; i - if(!Update.begin(maxSketchSpace)){9 z% L, e2 L5 c
- Update.printError(Serial);& ?; X) L$ Z4 h' o5 E O. s, B' V
- }
$ y; y3 _( U2 z+ H7 U/ V4 F3 Z - } else if(upload.status == UPLOAD_FILE_WRITE){ l: w( ~& p* @1 i9 F* e0 H
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
& ?+ u# r+ T6 L8 n! i+ a - Update.printError(Serial);
t# k6 G: {4 E$ H - }
( Q' y, q3 r% `4 J* Y. \6 Q - } else if(upload.status == UPLOAD_FILE_END){! e" {3 Y/ N1 I: V0 l* z3 T
- if(Update.end(true)){$ I- r0 \1 {8 @; `2 |
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);/ U; _8 v# @+ W
- } else {( i) [6 O' o& G, k2 H, d5 o' l
- Update.printError(Serial);
& Y# K8 D- |6 ]0 ?5 z% ^ - }/ q. j9 f+ K; t
- Serial.setDebugOutput(false);/ h- s+ V0 e1 r# c
- }+ {$ K- ^4 p& S
- yield();
8 t' H1 T' r# K. B: @ - });
4 i B2 ^& ?2 j7 r" K; _ - . e# t$ x' V- P. B- _ z* U& S
- digitalWrite(2,0);
, g, w) K+ b6 g( `: D9 O p - mainAction();
9 o5 Q2 q7 I# o+ f4 y$ { - if (digitalRead(0)){
# O3 v% Z' M2 T* b3 ^! ~ - ESP.deepSleep(0);1 n6 ?! R+ h0 A" S# v) l
- } else {" x. t7 w$ X' L% Y0 K
- server.begin();) ]0 w3 v. k3 w4 g$ l+ }2 m
- }& q7 {" K+ B: d& S
- }
" u9 M" w0 g# u2 A! o0 S6 h, V - void loop() {
# [2 A0 }3 j3 }2 C/ d# w( X - server.handleClient();- }7 u! @; \) V z* Q* F3 x- F0 I9 ^
- delay(1);
+ O3 h$ D% G. J! A - }
7 b0 m& e& d( X* v8 {( }; N - String doGet(String url){
# C& c! A. \9 V$ q% p- e - if ((WiFiMulti.run() == WL_CONNECTED)) {
- M6 K h1 `+ T' g K - HTTPClient http;
" i8 \ _ p. i/ b; D# c - Serial.println("[HTTP] begin...");
) h: @7 S. b# c! z - if (url.startsWith("https")) {
7 P: p- A2 `$ s - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
6 g& C ^6 J2 N- { ~( m) B - } else {8 i5 }5 z# O& Y9 ?6 E$ ^
- http.begin(url);
' e9 h1 m, e% m - }: N+ E* J" ]( \' c5 P9 U+ r: y
- Serial.println("[HTTP] GET...");
2 J$ p5 \8 _! N2 R, _ - int httpCode = http.GET();
8 {5 ?) E% k: ^( F U/ N - if (httpCode > 0) {
# U. C ~, N" b0 m9 |! V! h& w# Z - Serial.printf("[HTTP] code: %d\n", httpCode);4 }7 x% K8 v# z; ?
- if (httpCode == HTTP_CODE_OK) {
$ h7 Y1 Y1 `* }/ X, D7 C6 q - String payload = http.getString();# p1 x) |: y8 D" Z# [/ k, [" e2 `
- Serial.println(payload);
; |% u2 x& H+ n+ z, P - Serial.print("\r\n");! A) \- y @% R# v5 y1 D& J. L4 P
- return payload;! ~& R w" q1 e* f( h0 U1 z0 K
- }
- ^8 w0 Y$ e2 t8 y- h3 E - } else {& l+ D7 K7 X# I% M( C7 b/ b' W4 T
- Serial.printf("[HTTP] GET... failed, error: %s\n",# Q" i8 j" {) q' v9 Y/ m0 Z
- http.errorToString(httpCode).c_str());" u% {1 @4 u% v0 B
- }3 O$ x# K* V" d8 K5 @) Y, x
- http.end();
5 T" Z) K" ?# S, `. Z - return "";
: I. F# m# s. {' H. y - }6 O9 h& m( S1 ?& f, L
- }0 i; X, v$ C; H' e: k
- void mainAction() {
6 _# i% \: Q4 E* f1 \9 Y - // 发送请求
3 z! \& b7 @2 j3 L" V$ H - doGet("http://google.cn");4 ?( x5 S& g. [' i
- }
6 }1 w# s: V q& L ^4 \! O
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