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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)
& b# Z% [# k4 I' f2 U- #include <ESP8266HTTPClient.h>+ ]' v( G, H5 {4 E( [1 |
- #include <ESP8266WiFi.h>! N7 g" ^: `9 b, [# t u& X+ |: J6 i
- #include <ESP8266WiFiMulti.h>6 ]) U. b; k F4 Q- r
- #include <ESP8266WebServer.h>
' i% R; |7 |7 _- Q - #include <arduino.h># T6 Z8 b- i; X1 A
- ESP8266WiFiMulti WiFiMulti;3 _+ k9 k# X: h% F) j8 B$ g9 S2 z
- ESP8266WebServer server(80);$ {- z( G2 E+ |
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
2 `+ P& z1 b! f - ADC_MODE(ADC_VCC);4 Q% J4 ~+ D+ P! N& ^$ V
- void setup() {
( ]: N: F; a/ C* `3 C8 W r% ~ - Serial.begin(115200);
- b; i/ V# N. R - Serial.print("\r\n\n");
! C8 _/ h1 o. ?, b& o - pinMode(2,OUTPUT);
# b6 p( b1 K* y; ]) N6 @8 d9 W - // WIFI
8 I% g9 E' A7 Z( |+ b3 Y5 [ - WiFi.mode(WIFI_STA);( e4 B; ^) j9 ?( N S' X
- WiFi.hostname("Sparkle");* `& ^) N3 p) i3 j
- WiFiMulti.addAP("wifi ssid", "wifi password");
' d$ K% o* a9 G- f& W - int tryNum = 15;
9 K j, y: ]! I$ V8 @/ B( S - Serial.print("Connect WiFi");
7 c" _3 S; b1 r6 Z y7 C - while (WiFiMulti.run() != WL_CONNECTED) {
$ z" {8 V9 W5 V; Y - digitalWrite(2,0);1 a5 D+ P+ u: O) M; @: _, w
- delay(200);( K" \9 e( i' Q3 E3 |7 {
- digitalWrite(2,1);- I: k: Q4 D `# }/ h6 T
- delay(300);. x; ]5 F$ a2 P) W
- Serial.print(".");6 Q) {9 |% d* i8 X2 k3 {, X: v
- tryNum--;, A3 |. N$ ~& |8 g5 ~" R; @" w
- if (tryNum == 0) {# p4 w) n' U& N$ D
- // 1min
3 x# ?0 Z' t9 E3 G( j4 m& V - // ESP.deepSleep(60e6);* ?1 O& v/ k. |' T: k; z' K
- ESP.deepSleep(0);+ g/ X9 b* ^7 ]
- }
5 Q, b" ~; z: d( {3 d3 v0 ~8 y. c2 _ - }- S6 N/ H. N% y ~9 H$ e4 G6 y
- Serial.print("\r\n");8 h( O# l3 p: Q* R/ q
- digitalWrite(2,1);
4 w7 V0 M- j/ R9 W* a - Serial.print("IP address : ");
6 ~, V1 b, g( j+ d! R# o" y E - Serial.println(WiFi.localIP());
( _* s0 r& \ @9 ~! {+ e- ^: e& Q! T - server.on("/", HTTP_GET, [](){
. t* \2 G! F! G+ L( q& { - server.sendHeader("Connection", "close");4 [7 C& {5 A5 D4 A1 L
- server.send(200, "text/html", serverIndex);
% C5 O9 x& w; O t - });0 [; `* R+ w7 _0 ^$ X% j0 X1 H
- server.on("/update", HTTP_POST, [](){6 `* F7 E& ?& u
- server.sendHeader("Connection", "close");3 g; w w) N* z5 ^
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");. B( r8 X; ]3 b. n6 j( _
- ESP.restart();7 E- i- y( I" q& f
- },[](){
7 y* O9 w3 K8 f+ [ q - HTTPUpload& upload = server.upload();, u6 r k) J9 [
- if(upload.status == UPLOAD_FILE_START){
$ y/ c) C$ L- ]: l8 d' C5 z - Serial.setDebugOutput(true);
( s3 c5 @" Z% B, U$ H7 L - Serial.printf("Update: %s\n", upload.filename.c_str());% _1 |! v& W9 Z) W9 t
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
$ \: D+ E- q0 [( S - if(!Update.begin(maxSketchSpace)){
# B0 p) _! D1 [0 V, b; q3 @ - Update.printError(Serial);3 d" O5 ?: j. _2 ^& a t
- }
2 o! Y; N3 [" j# f - } else if(upload.status == UPLOAD_FILE_WRITE){- l, L+ f( H4 U
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
% j, _* d+ }- J' I0 u7 v6 b - Update.printError(Serial); _) F+ N1 A, k7 ?* x! t
- }
: |6 r) T7 j. I% f M2 X+ P - } else if(upload.status == UPLOAD_FILE_END){4 p) H. ~( l% d. U* L
- if(Update.end(true)){
2 u1 w) f x! _3 T; T: h - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
! M9 A5 [5 o5 [ - } else {5 X' W/ N; a1 Q9 r
- Update.printError(Serial);9 }7 t# D, x. g, c. B
- }% e" F/ X0 G. L$ p8 u( R1 k
- Serial.setDebugOutput(false);: V+ K$ [' c% t1 V' |) @0 n: e: B% d
- }; s+ C& N0 ]' ^( M5 ^' R
- yield();) L$ B* X& S4 \
- });( f. Z+ ~" _: A9 K) ]0 H
- - |& w6 _2 p- p8 p
- digitalWrite(2,0);
, e; T: M1 d9 } - mainAction();( P& a+ A$ {+ s3 m; ~% T
- if (digitalRead(0)){
8 ?; q) Q+ K6 q% H! j3 ~, s - ESP.deepSleep(0);9 r3 F% D/ v" p$ m8 |, G
- } else {
' t: Z/ V4 T# Y: t4 W - server.begin();
, A7 y3 s" e* p& m# n& P - }4 Y0 Y. n, E% o% P1 W8 C
- }
1 {2 m+ S# j n7 A5 F9 x - void loop() {. M# r# [$ J' k) f, {2 E2 ~
- server.handleClient();+ l6 K/ z# N) A0 ]8 j9 j y
- delay(1);$ i9 X/ Y5 J1 q# D3 c
- }
6 g+ }8 }, p7 X3 u5 o! u - String doGet(String url){' P# V# U2 J' h$ N: e* F% a5 V
- if ((WiFiMulti.run() == WL_CONNECTED)) {$ l8 }* h" c% C! R
- HTTPClient http;# Q9 P2 k* M1 ]1 k1 R
- Serial.println("[HTTP] begin...");
% \, R' p( x# I - if (url.startsWith("https")) {7 R( K! G# D, a" m
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
/ ?2 x x/ v+ ~, _* r - } else {8 `" d! U# Q9 E
- http.begin(url);
% e* [' B3 [1 s7 S0 K' A - }
5 f, q7 Q$ c, h, f8 _1 \4 s - Serial.println("[HTTP] GET...");% p" K# {+ {/ }3 a6 @9 x
- int httpCode = http.GET();7 x, n' r& J0 p8 \$ N0 ^+ Q
- if (httpCode > 0) {8 n/ b& K8 z& n% t2 C
- Serial.printf("[HTTP] code: %d\n", httpCode);% S( t0 L! ?$ f& F
- if (httpCode == HTTP_CODE_OK) {
G8 N3 i7 C* G, A - String payload = http.getString();, _: h$ e, c; \2 t4 E6 F9 Q$ a X/ E
- Serial.println(payload);
) F/ g1 Y) n* @2 Q9 S8 B - Serial.print("\r\n");0 i; @% @* O4 S- u
- return payload;
8 w' \* K! j3 c2 b% @8 }8 p - }
2 v" z: b- M* l - } else {
4 \; ?# u' I0 R5 e5 m) m8 C - Serial.printf("[HTTP] GET... failed, error: %s\n",
; o( N& q8 g( t) P( j P" I' v - http.errorToString(httpCode).c_str());
3 R( l" q( o) i; D - }) U: ?6 D% t: }7 q9 {4 F
- http.end();3 L6 H. u. M }. `* C ]
- return "";
* F$ r) H+ v4 n" G0 y5 j - }0 F# h% }+ ] p
- }
. m0 z( r$ }3 e# n5 r% S - void mainAction() {
* Q' ?3 `: h: u) H8 y' C - // 发送请求. t7 v7 O1 G5 \' p, b0 V
- doGet("http://google.cn");
* ^; T1 w. s" J& W4 W/ V( D6 n - }3 [; b/ _: t \- z, w1 P! g9 ^2 ^, U/ B
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