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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)% T" D D& r$ e7 {7 A+ b8 e
- #include <ESP8266HTTPClient.h>/ ?) l' M W0 p" S2 y
- #include <ESP8266WiFi.h>
" w7 W3 a- X. a) p5 ]' g/ f - #include <ESP8266WiFiMulti.h>
4 e0 W8 U, D6 N - #include <ESP8266WebServer.h>
6 M4 _, Y2 N" j1 G9 D - #include <arduino.h>( P5 a: ^' n! @) M* b/ ^
- ESP8266WiFiMulti WiFiMulti;
7 X, @* ~! L; M: U2 k - ESP8266WebServer server(80);' S3 I& z$ ~' }/ `. [8 \# ?
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";& L$ x- z% l. B, f( b
- ADC_MODE(ADC_VCC);3 s' F, d4 H1 _' _7 R) k
- void setup() {
+ U7 f& |: L9 l1 X, y6 i5 p - Serial.begin(115200);
; S2 `' h+ C! P% b/ ` - Serial.print("\r\n\n");3 v. u: y' e" A4 P
- pinMode(2,OUTPUT);+ {: Q2 ?6 ]+ `5 a4 p* k* c
- // WIFI
3 e+ o' \! v( p# ?0 n& i - WiFi.mode(WIFI_STA);- ~+ T3 I4 H3 r9 K; x& o: Z
- WiFi.hostname("Sparkle");
3 m5 w* I% R s, U4 j" ~ - WiFiMulti.addAP("wifi ssid", "wifi password");9 Y, K& }( \& X5 I! M5 |6 e+ f
- int tryNum = 15;
0 U; \9 v/ M, o( ^: m. H7 m) S% |1 q - Serial.print("Connect WiFi");* D1 s; W: W: x% |8 R4 b# J4 Y
- while (WiFiMulti.run() != WL_CONNECTED) {
+ T$ B# m" c* s7 W, B9 F$ o - digitalWrite(2,0);, h+ o1 k+ `+ F( N+ u \
- delay(200);
* C( V8 }0 m2 e - digitalWrite(2,1);; u8 ~/ c, z1 G3 e' y
- delay(300);
2 O, a% H1 O0 s( G( E! I - Serial.print(".");
4 w1 `8 I8 C1 E" R - tryNum--;; g$ b' L Z' J0 P7 t) b* r
- if (tryNum == 0) {6 o; G' `$ @. s; V$ [1 L- o
- // 1min n2 K& Z, }. U* K
- // ESP.deepSleep(60e6);
! @" R0 C, C2 h - ESP.deepSleep(0);+ v8 W* [, W3 z. G. O) m: @
- }5 B- T! ~$ V0 e4 i/ Q3 H7 e
- }: J5 ]4 Y) o- \' f# G/ r
- Serial.print("\r\n");
- q0 p& h' ~8 M: P7 d9 s - digitalWrite(2,1);
$ V+ e) a4 s$ I4 I - Serial.print("IP address : ");3 a0 _( N8 j4 q
- Serial.println(WiFi.localIP());
. M J4 c) _" ]4 a" d - server.on("/", HTTP_GET, [](){& p R. X0 p" u+ p8 |2 U
- server.sendHeader("Connection", "close");" E5 W7 f: y, S F
- server.send(200, "text/html", serverIndex);4 E& g* _8 y$ i% W% k; N
- });1 q7 N1 `+ b+ F8 f5 u8 G3 G
- server.on("/update", HTTP_POST, [](){
$ G B K K4 b& W - server.sendHeader("Connection", "close");. l; B! E1 a. q" X$ \. f# O7 R$ H7 b
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");5 M O! N3 A, p) x0 _+ ^7 C- v7 R
- ESP.restart();' X' l$ v/ q4 {" I% L" N
- },[](){
* @. X( s8 Z5 [( {" n8 ~! ?: g( d - HTTPUpload& upload = server.upload();+ M2 V2 _# M2 T4 C7 h% t
- if(upload.status == UPLOAD_FILE_START){' f" ~( q, T4 c- E6 ~
- Serial.setDebugOutput(true);0 \7 W; Y* ^& M3 }: X
- Serial.printf("Update: %s\n", upload.filename.c_str());
/ {1 M' q. N7 q9 A1 w0 W7 |9 k - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
4 N& M" g+ B g: |) r' n5 W - if(!Update.begin(maxSketchSpace)){
$ K8 D8 g( O/ y6 B$ o3 C; Q4 h" E - Update.printError(Serial);- Y+ h% [0 B9 i- o. n; E U& A
- }
9 T1 \! y! [% N* D. U' u- _0 a - } else if(upload.status == UPLOAD_FILE_WRITE){
* O8 I! H v/ a$ g - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){' p) \# b: a4 D# ]
- Update.printError(Serial);% B3 _; x9 s3 C) @9 }/ t
- }: ?, ]$ m% g% g/ V- e+ B( l1 J' d9 N
- } else if(upload.status == UPLOAD_FILE_END){( A- b' u+ L1 K3 H
- if(Update.end(true)){
) m: {! t3 z4 l2 `7 V+ K - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
/ O% a+ E: B8 R - } else {
1 U! b) m3 t2 r1 X: k - Update.printError(Serial);
1 ~) ~; y$ v. Z; V, t9 V - }" @8 y8 j# @6 b0 w ~6 m
- Serial.setDebugOutput(false);0 w6 |1 q) d# d" S( M9 a2 N0 [
- }
9 n: S( ?3 [% k* o( S - yield();
. Z+ u5 w$ T$ b9 C9 j" v - });
& s2 w9 `- S; E2 B2 S" l8 {8 X' A -
/ O/ n# j/ s6 E3 R0 t - digitalWrite(2,0);7 d5 ]- e! P5 g0 h4 X. ~+ x& e
- mainAction();
, V$ m/ m/ U& Y1 i - if (digitalRead(0)){
1 n5 q+ m9 ~6 O" e7 o - ESP.deepSleep(0);4 X' I" [% n/ p' |) H) Y! U, Q
- } else {) ~% a8 L! [3 V( X6 A/ l. n. I
- server.begin();/ P& W4 {+ n0 n8 ]
- }
. @) N# I, V9 N0 N - } `+ v3 l' y0 z& Y6 R3 A* e7 {
- void loop() {3 L# l& S- d4 o7 b) x
- server.handleClient();
/ G1 g: x ^! r& n! I" t9 f6 L - delay(1);
& Z2 K7 ]9 O+ A5 H# _4 ]; e. d* e4 _ - }) ~5 t1 G5 u( k) x
- String doGet(String url){
* I$ h) ^1 Z% v0 T4 e+ b# b - if ((WiFiMulti.run() == WL_CONNECTED)) {; W1 s- C) g* ~# e7 _3 E
- HTTPClient http;
. T& T: T; P5 J) `, c - Serial.println("[HTTP] begin...");
. [9 N) r# R3 y+ W - if (url.startsWith("https")) {
5 w* ? l2 l7 @+ `8 k, u - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");5 l1 Y+ e2 J; y U
- } else {; e. ?% W2 a7 e) j, I0 l1 W% d
- http.begin(url);
' L5 S8 ]# ]3 O, [/ ?5 [3 @ - }4 _7 e& G* d! L; P# x( f3 J
- Serial.println("[HTTP] GET...");- M0 R+ @$ {8 X' r! T( _
- int httpCode = http.GET();+ W% p5 a; s$ X5 ]& Q2 v
- if (httpCode > 0) {4 q m- A% U0 Z6 V! v& w! U
- Serial.printf("[HTTP] code: %d\n", httpCode);
5 G" \. ~6 {4 z+ j# `4 D( X3 a - if (httpCode == HTTP_CODE_OK) {
9 C$ ^1 u _$ e: U8 h# k" _7 C - String payload = http.getString();
7 S& @. ~* l3 G. y8 [, [ - Serial.println(payload);
7 i# i- S* Q( b" Y) s1 R - Serial.print("\r\n");$ G0 m( {$ U" i" @% i' ~
- return payload;( l& g% P) o i5 ]9 I& ?# I
- }: l. B3 h9 V: L; T* v" U- ^) E
- } else {
/ B! I8 r) Z7 x& \7 A- E1 m* ^ - Serial.printf("[HTTP] GET... failed, error: %s\n",8 @8 n0 C& a3 j+ ~) N, {" x; E+ u
- http.errorToString(httpCode).c_str());( ]0 }# m2 O9 g+ N
- }
+ C. F2 s0 f5 e - http.end();% V7 Y4 t/ f6 \, z4 C
- return "";
* m$ k: v5 }' w8 I5 Y& Z: j2 d - }
5 B8 W9 t8 L2 x, Z( ] - }/ x! ?2 c9 a' Q0 o8 r( ?
- void mainAction() {
0 }$ f6 c# a# ~% ^8 ~ - // 发送请求
+ n, k- W! i5 ~9 ^ - doGet("http://google.cn");& Q3 S; N( P! c% J
- }% H. a" i; E& V3 G- T
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