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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)
- {) I" T+ c) i* d2 e! F0 o- #include <ESP8266HTTPClient.h>% H# D; s# a3 `
- #include <ESP8266WiFi.h>* r% i) }0 s3 h! m2 W( u5 G2 g
- #include <ESP8266WiFiMulti.h>/ \. y% N- h* e3 D8 x% o/ h5 D7 a4 e
- #include <ESP8266WebServer.h>. U6 a; P. ~- H2 j2 k( i
- #include <arduino.h>
2 z% n" U$ D# s% g( C - ESP8266WiFiMulti WiFiMulti;0 ] k$ T2 Q* g: i+ Z# l5 }) ?
- ESP8266WebServer server(80);7 Q3 q) P# j: c3 |2 P% m
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
9 Q# x8 Y" s' j+ I0 [/ A - ADC_MODE(ADC_VCC);
* W( W: i$ w) i! r( m - void setup() {& u1 s) F& ~* N+ U
- Serial.begin(115200);9 x5 V1 d9 |6 K% k+ j* ?5 v
- Serial.print("\r\n\n");' w T. U8 B' n n: E/ C
- pinMode(2,OUTPUT);
d# G6 {: d7 I2 Y: i6 z, N - // WIFI' S* H% o2 b7 U/ b
- WiFi.mode(WIFI_STA);3 ` h) r1 T9 _. Z. v
- WiFi.hostname("Sparkle");
+ |! Y; a+ h7 W - WiFiMulti.addAP("wifi ssid", "wifi password"); U1 U; O# o( h" J4 [6 x: i- L1 e
- int tryNum = 15;
6 t$ i# G8 Y) F. r# O/ v - Serial.print("Connect WiFi");2 k2 C* z9 b/ o
- while (WiFiMulti.run() != WL_CONNECTED) {
3 c3 a: ?$ R4 b7 T$ D - digitalWrite(2,0);1 v( Y3 E2 E8 ?5 r' Q
- delay(200);2 z, T' w8 j& i' K& s9 }. Z9 D
- digitalWrite(2,1);
8 E( L$ t2 ?" W1 X0 A1 S! n+ r6 l - delay(300); F) l! s- x. T' ]
- Serial.print(".");
; w- c7 U! d( _) X2 O - tryNum--;3 x$ h7 I" M, ~3 O4 Y9 j
- if (tryNum == 0) {# o5 L+ d0 `, ^0 j+ b5 n% L y0 a
- // 1min( o) f- `+ O6 V0 V( X
- // ESP.deepSleep(60e6);6 G% H2 ]3 S$ ^9 |+ d& ~' H+ \. b
- ESP.deepSleep(0);
2 c3 P3 {* j3 y2 b - }
/ M7 \+ x0 [* r6 S* T5 Z+ s - }0 U& l+ q: T6 X# N: R
- Serial.print("\r\n");: e" Z( t: O: a% t4 ~7 L
- digitalWrite(2,1);
: h N, b5 w2 W& w: t: U - Serial.print("IP address : ");
- h8 o3 l7 D1 V - Serial.println(WiFi.localIP()); @) p; z f [2 p
- server.on("/", HTTP_GET, [](){
. D0 A5 F8 ?/ S4 k- d/ K( r: J - server.sendHeader("Connection", "close");
2 {) n L8 V* \% t) C - server.send(200, "text/html", serverIndex);3 T# l8 z5 Z T7 `
- });
1 D; I3 g. N4 s5 Q1 ~5 o - server.on("/update", HTTP_POST, [](){8 z, h% F) V. X2 q5 R. g1 u
- server.sendHeader("Connection", "close");
" B! s( `: J5 ^5 I9 L, g5 q& W, r, G - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");1 q7 \5 M) ^2 j; o$ B
- ESP.restart();
( F5 X* A8 m6 p0 Z1 @ - },[](){
9 N3 j- k5 n C6 h9 Z X% h - HTTPUpload& upload = server.upload();# `$ |# Q- f7 S" s# g' i9 f
- if(upload.status == UPLOAD_FILE_START){- A, \7 |. q+ a( f" o
- Serial.setDebugOutput(true);
$ X1 b- |8 Z8 x. s* A% D. } - Serial.printf("Update: %s\n", upload.filename.c_str());: L9 m1 }! K, M
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000; q1 Z9 @) r8 h# @' g
- if(!Update.begin(maxSketchSpace)){
( K g$ p# K3 F/ e" C0 B: X - Update.printError(Serial);4 ]9 {( F+ N0 l7 e1 N! h, ]5 F# v
- }2 n2 M+ T% R, D, L5 C* v4 {: N. p
- } else if(upload.status == UPLOAD_FILE_WRITE){
6 i; g6 j* }1 S, J* m5 J0 h% k - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
( y1 C/ W8 e+ t/ m/ ~ - Update.printError(Serial);
% x: J3 v! L# b& J - }- E2 E/ b# I+ ^/ o
- } else if(upload.status == UPLOAD_FILE_END){" V+ p" H J9 ]3 b& |
- if(Update.end(true)){
4 w* v5 N5 l: \2 [1 { - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
n) j/ S9 H, X& ]% W/ _ - } else {
: u+ n7 a1 H/ R: |, p- _" F: P - Update.printError(Serial);+ E* L5 a3 ]1 W9 x% T) m' Q2 ^0 y
- }* Z" A2 b6 }+ z A7 b! ^; P
- Serial.setDebugOutput(false);+ e- j' V4 L9 F1 L+ T
- }, E' H8 }$ b: r8 D/ D: r/ T
- yield();0 U' R' P/ v4 f [! [1 f" t) c
- });
! `6 R6 @ Z! S, |! l c -
/ b; h$ I7 Z6 p8 j Z: g9 ~8 _ - digitalWrite(2,0);7 n1 n* S0 [& ?
- mainAction();
, s. o; V: e9 D& Y6 D% v* ^9 g( N& H - if (digitalRead(0)){
$ s8 q. Q% P' {; K - ESP.deepSleep(0);/ P+ @, L7 h2 y2 E5 q
- } else {
, V9 v; N0 \3 Z* k" A5 i - server.begin();0 O: y0 _3 D9 H% I7 N
- }; s: s* M/ N2 p% R! t
- }% [/ ^, _. |& _8 S3 L
- void loop() {! z# n3 } c2 s! Y0 J& ~0 w& [. Q2 v
- server.handleClient();( Y$ c% K8 d: ~9 w2 x* g3 M9 S
- delay(1);3 }3 {" n/ C! M9 a6 s1 v: H
- }6 O( w( Y- L8 h6 K0 M
- String doGet(String url){
' B& d! e- Z/ @0 {5 C- e+ B - if ((WiFiMulti.run() == WL_CONNECTED)) {
0 g5 z4 ~ L( P, b9 a - HTTPClient http;
7 W5 J; {" i5 p) W* o* L8 J - Serial.println("[HTTP] begin...");$ U7 |+ A3 g* Q. t* d& L
- if (url.startsWith("https")) {
* E$ g M1 C8 R7 Z - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
& `; X. k4 z/ U9 U - } else {- c! ^0 P7 q X% q& E: D
- http.begin(url);6 f& b' Y- S ?+ N
- }
8 }, M# P9 \& `8 t# L% ]3 [, f - Serial.println("[HTTP] GET...");
?/ c1 |6 b: A* d* l - int httpCode = http.GET();8 t, g% w* O) K7 n- d
- if (httpCode > 0) {6 z3 O# v- A# k( M! z% c" g
- Serial.printf("[HTTP] code: %d\n", httpCode);- L0 a5 X) ^6 F( f) Y' }) E
- if (httpCode == HTTP_CODE_OK) {
0 v5 d$ M5 D/ [4 S& `2 X - String payload = http.getString();3 K, A$ Q/ W) d' x4 d& B" U
- Serial.println(payload);# L" E8 K/ u: H, R6 n- i! T" M: }
- Serial.print("\r\n");5 ]5 C) a m( ?
- return payload;
. d0 z/ g* K n) Z- N z' Y+ r - }
; } R1 v8 ]# A" Y- A& L - } else {
* ?" k! `2 u( O4 r4 E1 ^ - Serial.printf("[HTTP] GET... failed, error: %s\n",
; M/ g, c& P9 ]/ g* P' m5 m" G - http.errorToString(httpCode).c_str());
+ S* E4 j9 q a. _ - }
0 i& c7 [: `/ I - http.end();
. @% f+ d+ L9 p& G - return "";
0 @8 V. @ b% @( M. v - }
' h5 `0 H7 K8 G9 r+ h+ K* x- P - }
/ ?$ P# `' `! b9 N% e - void mainAction() {2 a& v) O4 q6 P- [# H4 W. F0 y* U# v1 B
- // 发送请求) I/ u9 g7 u: F g
- doGet("http://google.cn");
5 z6 i% E3 O3 H4 D9 v5 ? - }( S8 B4 a" S1 [# i* y
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