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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)/ K+ Q# q5 a% r
- #include <ESP8266HTTPClient.h>
# d# Z. X" x+ I* B - #include <ESP8266WiFi.h>) \/ d4 L% K* ^! l( C
- #include <ESP8266WiFiMulti.h>9 j# A W+ d4 z( A- z8 p0 U
- #include <ESP8266WebServer.h>
& L8 ~! F( E4 u - #include <arduino.h>1 M/ y# k7 l7 K6 k# M! E( u
- ESP8266WiFiMulti WiFiMulti; u2 l# U$ o# @; ]6 f; O: x7 P) O7 p
- ESP8266WebServer server(80);
3 q! x4 [1 z% h - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
5 c! q6 i. \( j4 E9 s/ Y& w9 ` - ADC_MODE(ADC_VCC);
9 `5 `/ z# ~; ~' P, l - void setup() {( Q+ m5 P9 U0 t" [5 R& g: l
- Serial.begin(115200);( g3 Z H3 X- }% I
- Serial.print("\r\n\n");
' W2 j( X A1 \: ?, E3 X3 a T- \ - pinMode(2,OUTPUT);! ~( x* x5 N% X3 `$ |
- // WIFI0 H4 ]0 v0 B! l( z
- WiFi.mode(WIFI_STA);/ [( J \+ ~4 `* X9 @. k2 S
- WiFi.hostname("Sparkle");# o0 R4 c4 \" b* ^, u1 A( g" J
- WiFiMulti.addAP("wifi ssid", "wifi password");% g# _( q- D5 o7 D
- int tryNum = 15;
, ]+ y. b. \, K( A - Serial.print("Connect WiFi");+ \5 m# {; g( J
- while (WiFiMulti.run() != WL_CONNECTED) {
3 i( l, x5 N, \& ?& @ - digitalWrite(2,0);
8 n0 ?2 x9 s, \! {& Q8 `. |5 n - delay(200);. o& U! |, o6 V4 K+ y. n
- digitalWrite(2,1);3 }$ I, R. {; _! h) L2 g
- delay(300);( C5 J w, q# D
- Serial.print(".");
+ m9 N+ [) i/ J2 p+ y - tryNum--;5 [0 P$ }! Q% k. |* V4 ~
- if (tryNum == 0) {
; q7 \( \0 V d" g% {) ? - // 1min2 S% }2 C, }1 k: F4 j
- // ESP.deepSleep(60e6);
/ ~3 I7 b# W: k5 c" U" {2 C7 L - ESP.deepSleep(0);# J# l+ J* |' Y7 C5 ]- @# v9 p
- }
- n s' E/ D( ]& L - }
+ n1 ?+ V& a. w- `( V: E - Serial.print("\r\n");: P5 S) Y; F: t* e p$ }
- digitalWrite(2,1);
C( w' v7 i- T2 r O. _4 K - Serial.print("IP address : ");
# v, w- \4 G( p$ G - Serial.println(WiFi.localIP());9 j2 d( d$ `' a5 n
- server.on("/", HTTP_GET, [](){7 `/ N4 ?9 ~. ?; D, K
- server.sendHeader("Connection", "close");: B0 o, |; l3 h- q/ {' \: u2 o
- server.send(200, "text/html", serverIndex);0 v! J: s, o# g9 D0 f$ s
- });
$ R/ u# O; T1 v% ^5 N+ E; l - server.on("/update", HTTP_POST, [](){, G1 Y& C3 q4 \
- server.sendHeader("Connection", "close");2 ?$ b8 R2 j- l& f3 ]6 O
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
. z% B- C7 h" x+ Q - ESP.restart();9 W2 o5 k+ A z" G% v2 T4 ~7 d6 c
- },[](){ f- h9 ]9 _ M3 J$ a
- HTTPUpload& upload = server.upload();" ~% ^0 U6 e% p. m' C' e
- if(upload.status == UPLOAD_FILE_START){$ N% N5 ]7 K- e& w4 o2 M' S) K
- Serial.setDebugOutput(true);1 N3 G$ A2 s }# u% A9 M# F
- Serial.printf("Update: %s\n", upload.filename.c_str());
6 y' r8 \9 H1 {& ~+ y; L3 t& N0 W - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
3 Z2 i9 p7 q8 ]3 x3 H: R+ N - if(!Update.begin(maxSketchSpace)){
# t( V& b, s7 H8 M; [% D - Update.printError(Serial);
% S. ~5 P" R2 \% D% t - }3 C4 ]# n% p" @ M+ K7 s! x( `
- } else if(upload.status == UPLOAD_FILE_WRITE){
& b2 x$ W; f |$ v+ p - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){7 D5 q7 i; ?/ E- y; x: N2 g
- Update.printError(Serial);
6 k' A( f! x. [. J+ t* i - }: |* W: c9 x7 N2 M
- } else if(upload.status == UPLOAD_FILE_END){
! i2 ~2 n9 w- o; ~! C: x2 r - if(Update.end(true)){4 D7 z0 t2 A% x% l+ K
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
4 m2 R2 ?: b/ g0 N) z0 b - } else {
0 B0 V3 k4 z+ Q* P/ r9 d* j% O - Update.printError(Serial);
1 @. ^! S% j; h - }/ c: @/ ]0 ]) V. i+ ^: i4 q
- Serial.setDebugOutput(false);
* Y" ]8 W9 B3 R - }
3 l: O% B3 _2 t - yield();
# O6 V+ T S6 @. _% O - });
`7 \7 g% N- p" h c+ I! S+ H -
2 D7 G8 _, V& w( a+ K) ~% {, w - digitalWrite(2,0);
r! L, \2 B0 J* |5 v! V - mainAction();- Z7 ~4 `, V, D2 b; O9 R* }
- if (digitalRead(0)){3 T) ^9 X+ j% S9 S. u* {- @, I+ v+ J3 o
- ESP.deepSleep(0);, u% n& W, B2 T0 m$ }/ _
- } else {
: k! ~& i1 q. ?; W% d - server.begin();* l5 h$ |: e# q$ d* G9 N, f
- }+ @ p5 V; I5 Q a
- }6 P: @# w3 l& V/ L1 z
- void loop() {
! Z& l: q) [! v4 z* l! w - server.handleClient();* V, \3 Z7 q8 y1 r: a, G
- delay(1);1 t0 x+ h5 o3 ^ P. Q' ?) `
- }& S* u2 u2 h% ]0 D, [- h9 d
- String doGet(String url){
& F" x9 c$ [; K; ] - if ((WiFiMulti.run() == WL_CONNECTED)) {
; n* m3 A4 A5 |3 K1 \) y S - HTTPClient http;! ^; ^7 A' S# D- m( S1 p
- Serial.println("[HTTP] begin...");
4 k$ h+ [. l/ z( I: d! ?! C - if (url.startsWith("https")) {" [: X. T, H$ F, U( D$ E& ^
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");2 \% Q w' x( \* f% {& n l
- } else {) ^$ ~5 h0 C8 f4 K* {; g) {
- http.begin(url);
6 V1 |9 Q2 [% P- p - }
$ Q2 m5 @# `8 O+ g6 n- g8 W - Serial.println("[HTTP] GET...");
" S0 g! m' E+ U6 N - int httpCode = http.GET();1 |6 J7 t6 E% S( }# ?
- if (httpCode > 0) {+ X( N0 a# f2 A
- Serial.printf("[HTTP] code: %d\n", httpCode);/ M* w6 { O3 h5 e5 d
- if (httpCode == HTTP_CODE_OK) {9 V; X0 w2 t. }8 r
- String payload = http.getString();. z% U( d. E% B0 R2 w% E7 Y
- Serial.println(payload);
) h+ i+ |" d1 o- E! e- J' i+ [ - Serial.print("\r\n");: T2 }) t3 F) k: y
- return payload;
, R0 `2 ]+ A; E1 ^: e - }
# }' Z! g' ~% D# F o6 j - } else {) u& g2 Q$ L% W% W0 U0 I5 G% Q) l
- Serial.printf("[HTTP] GET... failed, error: %s\n",
0 P8 I) E; X1 S: \: G! J7 x - http.errorToString(httpCode).c_str()); m& z9 t3 |3 }8 {
- }
- j* X% Y1 n. x+ @5 r5 O - http.end();
3 L$ e0 [ c( A+ v! j: T - return "";/ _' x8 q% j3 K& u" L
- }- M! ^/ ~# {3 R
- }
6 }) N) p8 Q. a3 q - void mainAction() {" m8 F m0 h" x* ]4 G4 ~
- // 发送请求
. G4 n- C; p" t4 C) G: P& o& C - doGet("http://google.cn");
" H. M& N* J( X! r& n9 g/ a- y - }- z' k A) d% ^% v3 ?0 b! m2 q
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