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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)
( z1 {- q7 x) C2 J- #include <ESP8266HTTPClient.h>
5 U& L( m# i+ E' G - #include <ESP8266WiFi.h># B1 A1 d6 K. o1 Z6 T6 e
- #include <ESP8266WiFiMulti.h>
* e2 a. r. E8 I. U; ~ - #include <ESP8266WebServer.h>* v2 [. k3 K- O) `4 T# \7 u3 K9 ?' p
- #include <arduino.h>
8 s0 C! L& a/ T% N( m - ESP8266WiFiMulti WiFiMulti;
) b5 ^4 F6 @6 ^ - ESP8266WebServer server(80);; Z. B" z: [5 R- ~
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";7 l7 x7 ]' j9 `6 n
- ADC_MODE(ADC_VCC);
4 _: j- a+ X; f# S3 h; C - void setup() {( g0 m' ?" r1 a& n% b# d
- Serial.begin(115200);: l: A' j1 ~2 g9 h3 y! t# }
- Serial.print("\r\n\n");
J# F4 i) [+ s - pinMode(2,OUTPUT);
) ^( e3 e x; a: A& i - // WIFI* V' ]- F! ^+ e, p
- WiFi.mode(WIFI_STA);5 u# `; s: C: |7 K
- WiFi.hostname("Sparkle");
' [6 z5 @6 K1 I- \0 X7 i. O - WiFiMulti.addAP("wifi ssid", "wifi password");# e3 S$ F+ e, v; n& [/ i8 P0 I
- int tryNum = 15;
8 m/ J0 Y: z( _9 \5 U) O4 N' _6 \( V - Serial.print("Connect WiFi");
3 B! [8 x) O9 ^; j6 W- B - while (WiFiMulti.run() != WL_CONNECTED) {
. Q. Z6 n b9 I! y" _3 \4 D% m1 I - digitalWrite(2,0);
) p; R# |9 f: K+ q; J8 I- F - delay(200);
6 u2 P$ A% S! ~% `& Z7 ` S) F. ] - digitalWrite(2,1);# U2 z4 W) B5 X- n0 z
- delay(300);
' v! f3 g8 B N& w |; _3 P+ g) F2 H - Serial.print(".");
Y; c+ x6 U4 L' v, u* N - tryNum--;
3 J* h9 Y, E3 U2 `6 S' t3 Q - if (tryNum == 0) {
6 h7 l7 z* d4 p7 x5 |0 T: s* ~7 O - // 1min
4 y% @7 y+ n* M1 H; P9 J* v - // ESP.deepSleep(60e6);
0 N* p% B* U0 s - ESP.deepSleep(0);; ^/ t( R9 G/ x/ V$ U
- }* _& l- L3 M* M. S) O: |( P
- }) F; R$ d3 ^& d# M0 n+ H$ U8 T
- Serial.print("\r\n");- C3 G3 z4 m( b5 e9 g
- digitalWrite(2,1);: a: p# d7 G, L; e6 ?. Z6 _' J
- Serial.print("IP address : ");
- v% _2 S8 m# v: g - Serial.println(WiFi.localIP());
3 V- M5 H# C' W1 Y( K - server.on("/", HTTP_GET, [](){
* [& t s/ H1 s3 u3 w) | - server.sendHeader("Connection", "close");1 A6 a/ T7 b! c8 K% Z
- server.send(200, "text/html", serverIndex);
, ~9 C0 l# [6 ]+ x - });
/ J( M, @# ~6 _% h7 o - server.on("/update", HTTP_POST, [](){9 y5 s; v( E: m: r, [' N
- server.sendHeader("Connection", "close");
1 c6 l/ e T/ _ N& t r! t. @ - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");, k: h) h( r; g! N& s3 C6 h$ Z
- ESP.restart();: |/ L. |1 b; s% T. N2 G# }3 g
- },[](){3 _' u& o& e2 H$ W
- HTTPUpload& upload = server.upload();
- ` b3 g2 q7 E6 x/ T - if(upload.status == UPLOAD_FILE_START){
) ~( O9 X: T% s - Serial.setDebugOutput(true);# Z0 p4 A/ f- d( }( t2 E
- Serial.printf("Update: %s\n", upload.filename.c_str());& q' |, R$ ?1 r( [
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;! U5 J& A$ }0 o& [/ w# N1 [
- if(!Update.begin(maxSketchSpace)){! ?( l& t" O, r7 l
- Update.printError(Serial);, e, f8 K0 k9 q2 V7 L, r2 h3 i
- } c0 q4 k' g# F$ z2 b- h
- } else if(upload.status == UPLOAD_FILE_WRITE){$ I+ P) _1 r- ], \
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){- `5 l! j" v$ p9 D! P- ^+ n/ v
- Update.printError(Serial);5 g* a. f: n& L+ x4 M
- }
! w' E( S3 s4 F9 q" D - } else if(upload.status == UPLOAD_FILE_END){
7 Z* z; G1 a! F- ^% S - if(Update.end(true)){0 Q' E% ]# P. [9 o3 A
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
& I* S4 G+ k0 a$ d3 x m - } else {7 T* a! g7 ^9 F$ P8 X% ~
- Update.printError(Serial);
4 ? w/ w6 ]# N; h, O M/ ] - }% B0 U$ l. m0 g7 Z
- Serial.setDebugOutput(false);
' \! [$ h' ^( L' e6 Y/ y! C( D7 r - }
! ~& q! `: `2 U' @7 E# x p - yield();0 X4 Z5 U: [ ]6 K$ F) |" c1 \
- });
; l- Z$ `( g/ [4 z+ k1 g - ' f3 r: m, k' f; g: h% X" s
- digitalWrite(2,0);
; w! J- u' s0 j, A - mainAction();
8 m( f% d. H# _5 _9 K2 X0 V0 t - if (digitalRead(0)){. {8 ] q8 t) _, Z6 ?# W8 O: n
- ESP.deepSleep(0);( T! u ]2 E+ f. ^5 [3 R$ ?" H
- } else {. t! D: G3 S! t7 d3 I3 C
- server.begin();5 k. A) E! l3 n
- }$ N( `) a9 E1 X5 R+ y
- }! K2 J6 B6 {2 {, j. C. B0 p
- void loop() {2 u8 u; i# ?" J; h9 ~! K
- server.handleClient();
0 L' L# `+ L g( a3 r, b - delay(1);
) w6 F6 ?! [7 d# u6 L# d - }6 d8 i" N0 `- q" ^- F
- String doGet(String url){3 n. G0 q5 V5 G
- if ((WiFiMulti.run() == WL_CONNECTED)) {
2 ]* l% F7 \2 E9 O; ^ - HTTPClient http;
9 e3 e' t$ o' r, P( _& Q% { - Serial.println("[HTTP] begin...");, H7 s1 e% y; B$ D
- if (url.startsWith("https")) {8 F! _, S9 Y9 ~
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");: B! ]- e9 y9 q; {: t; U4 A
- } else {
8 f1 M/ l1 V5 u - http.begin(url);
# R0 O# L+ E/ h# {: |! D - }! n* k1 v. X$ M- d/ ?% V
- Serial.println("[HTTP] GET...");. p H% j' i2 w
- int httpCode = http.GET();7 a3 D! r k# I$ d. K* `
- if (httpCode > 0) {) S" ^5 R. m) V! t" g& L f" g. @7 H) k1 @
- Serial.printf("[HTTP] code: %d\n", httpCode);
2 r }! Y |" w% e9 {/ u) z+ d - if (httpCode == HTTP_CODE_OK) {
" c7 Y$ I/ P/ l- H4 M - String payload = http.getString();
J3 @: a) k: h5 E. E R$ i$ A& T - Serial.println(payload); V: h3 X4 ~# L; ?+ _
- Serial.print("\r\n");
0 U; n( v: Z y8 [: h0 y - return payload;
1 c6 p3 P3 p/ \' E! o6 D - }
$ z; E5 X; g4 c2 F; i - } else {
" A: }& S) s, E. V - Serial.printf("[HTTP] GET... failed, error: %s\n",
% W% A& G2 T* l& ^ - http.errorToString(httpCode).c_str());3 K7 w; s. L" m: A3 a3 W
- }
5 z! s" E; c8 _$ G' c/ I7 z - http.end();; X- J' A4 t& i# P
- return "";& Q7 U Z* p1 t, |& h6 h
- }# Z2 @* x) `* p6 k6 r
- }
9 u( C" s- y @ - void mainAction() {5 _" \4 q' z" l- {" o! T! R$ b# V) J
- // 发送请求
& p' T' u7 U/ y" q - doGet("http://google.cn");
. j0 d M3 S& H' W4 p7 q - }
]* z# F2 q3 j6 s1 y) x
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