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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)4 I* {+ u$ p9 r! U7 x0 D4 B
- #include <ESP8266HTTPClient.h>
! _( @2 Q! M: d9 b6 {* @8 z - #include <ESP8266WiFi.h># U/ `6 Y3 A& i0 M2 I- E
- #include <ESP8266WiFiMulti.h>3 a7 ]" }) r$ f, U
- #include <ESP8266WebServer.h>+ S! ~0 R7 x: ^. p- L: D; |. L
- #include <arduino.h>
5 D2 x" X8 q1 Z; ^; K! U1 `7 r - ESP8266WiFiMulti WiFiMulti;0 s; q; j+ V' ~- ^0 ~& z5 B7 M
- ESP8266WebServer server(80);) o$ t( M% r5 F# [' p, C+ x
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
$ n$ I& L' A D# x* h5 F( | - ADC_MODE(ADC_VCC);9 w8 _) S9 v4 ^6 C- z2 W
- void setup() {6 ]& Y( x4 ^0 E1 s. M( g4 ^
- Serial.begin(115200);6 ?9 `' U( t+ B2 P# r) ], o# ~3 X
- Serial.print("\r\n\n");. e$ E0 i9 N6 \9 Q+ p
- pinMode(2,OUTPUT);
. O3 e; _$ N7 y" R* n - // WIFI
5 Z6 f$ @1 Z# {( r+ {% k - WiFi.mode(WIFI_STA);. |) h3 P. F( `
- WiFi.hostname("Sparkle");
6 u5 V6 g( z, s- N' v - WiFiMulti.addAP("wifi ssid", "wifi password");
& o( u0 L# B, f7 j2 p U' s - int tryNum = 15;
_% P6 P* J' f- u3 a8 B3 C - Serial.print("Connect WiFi");
6 b# t; W* D. |4 q$ w - while (WiFiMulti.run() != WL_CONNECTED) {
7 y( M: k$ F5 B6 e - digitalWrite(2,0);* Z, h2 p( f) q- W% H2 R S" ~3 G- a
- delay(200);- B2 W2 M* P2 U& m. U
- digitalWrite(2,1);6 R! r& k1 i9 x1 ^$ U& n
- delay(300);
5 Q( V$ h4 ~* M: {+ E - Serial.print(".");8 d |5 v0 P0 C# n0 r6 O7 T
- tryNum--;- L' c0 M+ B) q" V6 G
- if (tryNum == 0) {
% j; q( N& `$ I) o9 M8 H - // 1min+ H/ W" _/ s2 _3 W
- // ESP.deepSleep(60e6);
) r: M. j8 S* B- D+ { - ESP.deepSleep(0);8 u. ?% @8 B6 X
- }9 l* H" s, f, j+ k6 w4 R
- }
) M4 d' Q, d/ [8 U; } - Serial.print("\r\n");& G, S9 L- O1 A; ^! M/ K# D0 U
- digitalWrite(2,1);- W- V; s! X, V& W R0 f
- Serial.print("IP address : ");
9 t7 n2 s# D6 o; t - Serial.println(WiFi.localIP());: A/ B* }. p: D c, J* k3 ]
- server.on("/", HTTP_GET, [](){( d' z/ |* F/ b" i5 O# W8 n$ A; D( H
- server.sendHeader("Connection", "close");
" m% m; u& n3 s+ }* S+ y - server.send(200, "text/html", serverIndex);% @! f! `. ` K6 Q
- });2 e1 V3 e; y* G% L
- server.on("/update", HTTP_POST, [](){
6 M" ?* I+ \3 W6 e% e - server.sendHeader("Connection", "close");
% u" B2 ], V7 u6 C& Q9 w4 ? - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
& F, e/ ~2 `0 J; @; P7 n: L - ESP.restart();
# _8 ~/ s1 F$ ?: M - },[](){) k: S; N: L% u$ w3 U! y" n
- HTTPUpload& upload = server.upload();4 V% C5 ^3 a2 d
- if(upload.status == UPLOAD_FILE_START){
5 N( M; U' @* S - Serial.setDebugOutput(true);
: ]* y; L4 Z+ v* l - Serial.printf("Update: %s\n", upload.filename.c_str());- G; D& R& U. l4 c% y
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;* f1 @2 `9 m5 f4 V
- if(!Update.begin(maxSketchSpace)){! L4 h/ z, d; `5 W: p6 }
- Update.printError(Serial);( h9 [( A% N6 W' c5 {
- }
% n- p$ d3 ^% P9 D2 i5 e& ?8 P - } else if(upload.status == UPLOAD_FILE_WRITE){7 R& _0 V1 r. ]+ h
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){; C; X' K( I6 e. K
- Update.printError(Serial);
+ i O6 g) I# j8 D- v - }9 Q! o) N* C" l5 y% ~$ B, m
- } else if(upload.status == UPLOAD_FILE_END){
3 A( Q5 A+ g5 J5 I0 |7 Q1 F - if(Update.end(true)){' g3 \7 P4 x1 k5 A" e# _" H4 l
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
; i+ Q' t# m6 Z& q# \ - } else {) s$ d7 \/ f0 H* V K& z. Z" ~
- Update.printError(Serial);
0 X+ ]' T: h; _ - }
4 K) x; y! o9 Z: j& K& U% l8 J - Serial.setDebugOutput(false);9 a! H9 D- y2 ?% x
- }
7 ^# C+ M$ v& ^/ P/ z- H) |8 J* n - yield();* s8 Y) b1 U; {% \! E* [. M
- });
$ Y* d) f9 d& _+ W* X: o- z -
& O7 c# }( E8 G - digitalWrite(2,0);5 k3 x* {1 ]" r% S& M
- mainAction();5 E5 y) K: ~( k2 V
- if (digitalRead(0)){
- P6 V4 P% a# K0 I - ESP.deepSleep(0);0 a; C% A9 \( g# E: W- Y: H1 _
- } else {8 ?6 N2 [( a1 g, d
- server.begin();
6 U l, B7 x* [/ W U - }" T* K" t$ N+ e( ]8 z
- }5 W5 e$ `8 `7 A" b
- void loop() {) o+ w4 d6 [4 ]! k1 l! c }+ i% Y
- server.handleClient();
o b7 T& _/ p! G - delay(1);7 C5 \- z( ^. }0 ~0 T
- }+ k G+ C$ t6 P% {8 P' o
- String doGet(String url){# n) \4 [1 s3 r' K+ T* K
- if ((WiFiMulti.run() == WL_CONNECTED)) {8 s. M) u" j7 s2 ]" s
- HTTPClient http;/ F% }% L& w% M7 } a9 h
- Serial.println("[HTTP] begin...");7 u7 r/ n# m. {* d; K
- if (url.startsWith("https")) {
% w) H! X4 Z' @ - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
: u f7 B: Q, p$ G. e - } else {$ w3 I; k: V% B2 n8 V+ V
- http.begin(url);
. x+ K7 y3 L# Z# s$ G' }8 @ - }" q, H6 O& G" ^9 @. ^* Z
- Serial.println("[HTTP] GET...");& b( l( u7 N- }8 n3 c) o
- int httpCode = http.GET(); [# I i: O# R- j/ K1 j
- if (httpCode > 0) {+ `& u5 v: g/ r
- Serial.printf("[HTTP] code: %d\n", httpCode);+ ?- \, ~) R* d5 W0 h5 j
- if (httpCode == HTTP_CODE_OK) {: Y, ?% H+ C5 v' [6 b+ l
- String payload = http.getString();
3 q+ I# }- {8 X! s O - Serial.println(payload);
$ R8 j* z& |2 [' g( a - Serial.print("\r\n");
0 X- R7 G+ D9 P, h9 r% X - return payload;
& V, E, x8 O+ c0 a7 q - }
- `* v( N* r, p. c - } else {
- e; H N' L2 A! t* p1 T. i3 Q - Serial.printf("[HTTP] GET... failed, error: %s\n",
9 @7 l+ X" r' Q8 V6 L/ N - http.errorToString(httpCode).c_str());
4 B8 L) R9 o: ^) ]" \ - }
% B5 [ Z6 K' u% R - http.end();
/ x& P0 ?+ K* w/ d$ A5 T, X1 T - return "";, t2 e; ~# w" ^6 x6 _
- }( d4 S& v7 u, k3 t! X" J3 a% x
- }
2 f2 v5 ~; `: e& a) E; x5 S - void mainAction() {
- H7 @, H9 Y0 @2 t, A) g0 u - // 发送请求
! `% d! c" d+ h2 P - doGet("http://google.cn");
, y( X/ D. l" G7 r1 v" ]! k! u - }
# G2 u A5 K) A0 u5 p$ P* `
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