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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); d6 t: [" e6 X; o/ g9 ], d
- #include <ESP8266HTTPClient.h>) s( q4 H% M' Y9 | x
- #include <ESP8266WiFi.h>* v$ A! ^1 S1 w0 }
- #include <ESP8266WiFiMulti.h>
) _3 Y3 T% {2 Y% Q+ v; [) w - #include <ESP8266WebServer.h>4 l, Q5 X, U, u( z: b% h
- #include <arduino.h>
" Q6 y8 h" {* H$ x- w8 x& u4 O - ESP8266WiFiMulti WiFiMulti;( ` t% J( _' d- E* E
- ESP8266WebServer server(80);1 a1 I! U) q5 \' n9 k3 y7 h. y6 w n
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";$ x8 b8 w) y4 Y- a! O" F' i0 c
- ADC_MODE(ADC_VCC);3 Z5 H' ~% [5 T$ a9 @5 y/ X
- void setup() {& O6 I/ i( C0 D$ Y4 C8 p' v2 S
- Serial.begin(115200);
v- \( y- d; b - Serial.print("\r\n\n");- a" P) V+ T& F0 x4 [' x0 \/ G3 a/ l
- pinMode(2,OUTPUT);. w& J" r4 @2 M: D
- // WIFI- f) v C+ i2 K6 M% y; E K
- WiFi.mode(WIFI_STA);+ {) Y0 |; F, w4 t" G
- WiFi.hostname("Sparkle");3 U( p0 l/ D2 h i7 t9 {: N
- WiFiMulti.addAP("wifi ssid", "wifi password");2 ~ M" D- V! m* x: c( I) s* b
- int tryNum = 15;# \" F. ?+ v$ j7 S( K* z# {
- Serial.print("Connect WiFi");
5 U8 c9 M! ]: K1 A - while (WiFiMulti.run() != WL_CONNECTED) {7 x* Y! r! ~( Y, W. r
- digitalWrite(2,0);
+ M% [( I- L4 Z7 @0 w - delay(200);
$ u5 Y: l( x' V/ d+ x3 u8 A - digitalWrite(2,1);7 ]4 t+ C9 ?3 i
- delay(300);
1 T( p$ I: R1 q( ^$ [9 z" S# a/ v - Serial.print(".");
! E! E$ `9 l& O: C - tryNum--;) h5 c7 p, \+ n! r, F
- if (tryNum == 0) {1 }$ S3 H1 S+ U% P
- // 1min
" L* {0 h$ @) X6 E - // ESP.deepSleep(60e6);
/ @8 ? e# P8 T5 R$ A/ j - ESP.deepSleep(0);
+ _4 D( c, X, q; H9 Z - }
/ Q( e7 Z8 e* Z1 O9 F( l - }
( F5 m; `2 a+ h" ?$ C - Serial.print("\r\n");! v# m" @" R# D* Z* u& Q
- digitalWrite(2,1);
5 R- Q9 h% m; X/ e1 { - Serial.print("IP address : ");
$ |4 S: d6 s# |3 y - Serial.println(WiFi.localIP());
, U' M% I, o& v9 m' ~ - server.on("/", HTTP_GET, [](){
4 v6 h6 W% a/ A - server.sendHeader("Connection", "close");
8 f; _) G8 e# T+ M; d7 M - server.send(200, "text/html", serverIndex);
, [, d, k4 O: k( |# [% N# H - });1 g" h- S- |5 p0 a
- server.on("/update", HTTP_POST, [](){' v2 }* i) y# [( [0 f9 h
- server.sendHeader("Connection", "close");1 [7 L1 A1 l7 y' E2 ^+ B$ z; R
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
7 b7 s4 N' U! l. W7 Y - ESP.restart();
/ ?, s( U, b# T" I6 g - },[](){
5 ]3 Z b3 D; P8 c' O - HTTPUpload& upload = server.upload();: q) P7 q# @5 d$ A1 |1 w& n+ R* B
- if(upload.status == UPLOAD_FILE_START){
; T& s; m; C \, P, x& F - Serial.setDebugOutput(true);
% b( P' t, A) H' V: e) j - Serial.printf("Update: %s\n", upload.filename.c_str());* v* j3 J0 C/ O$ N% m2 U$ `! n6 k- I: r
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;. T6 k1 t3 E/ n& \
- if(!Update.begin(maxSketchSpace)){
: Q! i4 d0 \9 A4 S! x% u; r - Update.printError(Serial);1 r$ T% D7 |+ w5 H# P w
- }, O' n. O& a4 h1 `
- } else if(upload.status == UPLOAD_FILE_WRITE){
! w, R$ {9 O! C - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
/ Z# I2 h, U0 _+ o+ }& V" v - Update.printError(Serial);
; X- p, x8 e! z4 t6 g$ y6 k - }* c4 F) m$ e2 @/ ]( x5 H9 L
- } else if(upload.status == UPLOAD_FILE_END){
) b7 H9 s& Q- `3 y3 O - if(Update.end(true)){
% x0 i; v/ f& D% Q+ ?, G. N$ L - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
6 R& {* Z5 D2 ~# E - } else {4 y" Q( M0 |" v- v W% q: g
- Update.printError(Serial);; {$ r- f6 l( T/ U
- }3 j, {0 l+ J: w; W8 f
- Serial.setDebugOutput(false);
' V, r3 t( E! C/ a; z- [$ K8 V - }9 V _5 ~, ]: v
- yield();) i' C% D/ j/ G- @& V7 ]) H/ U7 O
- });
+ n3 v: [ o+ Q+ s7 k - ! u: c- a& U$ d' M
- digitalWrite(2,0);
; M( Z% N. b% Q. [( E( V. F - mainAction();
7 I6 a& U" U1 s* J% N - if (digitalRead(0)){3 D! U& W- Q0 L& R
- ESP.deepSleep(0);
& T# h* C5 c. p$ C - } else {5 ^, i/ t4 _; Y) |
- server.begin();; a0 N5 l% |! a$ D
- }6 Y: I! {. P" E; s4 w
- }
* W" v( c# F# W, U+ V. J0 i% r - void loop() {
; E; R* r' E8 h' v1 D3 ]. \ - server.handleClient();) ]/ `8 q |' d: O" T) Z. u, d% N
- delay(1);! x/ i( A9 w) {( ?
- }! V! x b/ t! t
- String doGet(String url){
# [- V7 ^$ O7 U5 l - if ((WiFiMulti.run() == WL_CONNECTED)) {
E* V0 `; `4 e5 c - HTTPClient http;9 g5 v8 A7 a: R1 K
- Serial.println("[HTTP] begin...");% ?3 J. t9 f& L1 ~9 o6 n
- if (url.startsWith("https")) {
) T5 [; o& b6 Y, `2 d* M$ i - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
7 U0 i: Y& r$ Y x9 r' [ - } else {! I7 ] W: u" U, @) Y8 A
- http.begin(url);
i6 K0 D1 W; h. ` - }6 Q2 X8 o" r" Q
- Serial.println("[HTTP] GET...");7 m/ D" z$ E) T) g8 N1 D5 H9 H
- int httpCode = http.GET();0 S6 t3 m' l- I. g8 s6 P: L- T4 ^2 h
- if (httpCode > 0) {
1 c) Z) {$ S/ x7 ~: F. G0 p& [1 w - Serial.printf("[HTTP] code: %d\n", httpCode);
$ L* G: V' B) ^) p - if (httpCode == HTTP_CODE_OK) {! X6 l8 F) h# }2 Z; ]# b
- String payload = http.getString();1 M/ k0 p" l2 t1 ]- Y S
- Serial.println(payload);
$ {! M3 [' v! _# F1 q$ F5 [ - Serial.print("\r\n");
9 R* E1 X! c4 L - return payload;3 T' B5 g; }* T6 ]/ x9 d* z
- }# G- k8 g2 d% Q+ C- ?4 X( r% ?
- } else {7 E' f z b; e9 a: y9 M$ u2 Z g
- Serial.printf("[HTTP] GET... failed, error: %s\n", ?! `0 Z ]+ s+ _( t0 L J! v
- http.errorToString(httpCode).c_str());
3 L2 b& d) Z6 Z& `1 o! H - }
2 q. o5 C$ {% o9 z+ z: H2 P - http.end();7 A. |, K* _8 y( I) g
- return "";
* V4 J6 \. }7 C8 d - }
" l) ^" L* A4 }/ C - }
6 Q6 P. g' @# U7 o+ ]3 h! j+ p - void mainAction() {
6 \, l! Y' e/ R# O7 U* J# J. p0 h - // 发送请求
) a1 o& F# q+ O, Q$ Z6 G - doGet("http://google.cn");* ^6 a8 b3 v3 }9 w- _* I" m* d( ^+ E
- }8 ? {- D/ Q4 a9 g z% k) X
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