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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)
, O, ]/ L: f6 \; H5 j- #include <ESP8266HTTPClient.h>4 G# N; Z: u) N4 ^6 X" L9 T4 z
- #include <ESP8266WiFi.h>1 e, Q( h& ?/ p4 I& h
- #include <ESP8266WiFiMulti.h>; w" N' e0 f- I9 A
- #include <ESP8266WebServer.h>; D; v0 T: J4 k9 M3 v0 @8 Z1 a
- #include <arduino.h>
! ]0 W" v5 x' G1 \# |$ E: X - ESP8266WiFiMulti WiFiMulti;* V7 \5 K1 c1 G: c. x3 A
- ESP8266WebServer server(80);
* `* b( f% D! J; h7 R - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
8 N( n9 b! U; Z( }' S q ^ - ADC_MODE(ADC_VCC);+ D' V7 f* i- G
- void setup() {* ]4 o; O. D& \
- Serial.begin(115200);& o( }0 ~( u5 d2 F- e" c
- Serial.print("\r\n\n");
7 u8 Y$ ?$ L2 Y& q - pinMode(2,OUTPUT);
7 @, p$ K* M! l3 K* O6 `5 P - // WIFI
- i+ e5 e! t5 I. U - WiFi.mode(WIFI_STA); T: l9 r3 x f5 @. n
- WiFi.hostname("Sparkle");2 h' x+ k* [6 U9 U$ b4 O5 E3 x
- WiFiMulti.addAP("wifi ssid", "wifi password");; C7 D A' v# t$ i
- int tryNum = 15;- J! |" W' H8 S$ e# o V; f/ j
- Serial.print("Connect WiFi");
- b; J1 @8 j, p% n% p5 l - while (WiFiMulti.run() != WL_CONNECTED) {6 y l4 p- L0 f7 i% H! m
- digitalWrite(2,0);2 B3 J- \4 F/ G' g' A( v2 ?
- delay(200);3 i- u1 G0 L7 Y9 d$ s
- digitalWrite(2,1);9 ^# F% S2 W+ \! G; V- _3 X; d% e
- delay(300);% ]' [9 F" ^" ~7 L7 N. f' B" d7 D
- Serial.print(".");. k4 i$ ]$ l9 ]/ S
- tryNum--;
# s$ C' m v: G4 H. |/ o - if (tryNum == 0) {/ e8 Q" A/ n" L% ]. B% O0 d
- // 1min' n7 a0 d* d2 ?
- // ESP.deepSleep(60e6);2 |- p6 g7 j$ ?6 Y1 _
- ESP.deepSleep(0);
1 }2 z- L1 U" I9 x/ F8 M, l X: c - }
* _- |8 R! k7 k& X0 a - }
7 a! S# m1 Z: ^( v' b @ - Serial.print("\r\n");9 m% m( q6 {1 m" O
- digitalWrite(2,1);: u, U5 i+ f5 Z0 ]$ T5 J4 R
- Serial.print("IP address : ");
/ u3 R+ U' U' t - Serial.println(WiFi.localIP());% W- k* U: H% t( K Z0 u6 H5 I* Y
- server.on("/", HTTP_GET, [](){# r# R; I' K9 X9 t( F
- server.sendHeader("Connection", "close");$ g% ? h, ^* k o+ R
- server.send(200, "text/html", serverIndex);4 \" z6 I ]/ ?$ J
- });. }! r& j9 u6 P- A
- server.on("/update", HTTP_POST, [](){ G( e5 ^6 Q' b
- server.sendHeader("Connection", "close");4 x% e- m/ T! E1 E2 Y* L
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");+ B3 _; W" q& ~; b
- ESP.restart();
5 h I7 H" M2 u - },[](){0 Y& A5 K; s4 m4 h) c# d6 D
- HTTPUpload& upload = server.upload();
, f# j" X% q, ~. R - if(upload.status == UPLOAD_FILE_START){
3 \" b0 }7 q4 K7 _% _ - Serial.setDebugOutput(true);
9 H5 S( o( l$ } - Serial.printf("Update: %s\n", upload.filename.c_str()); b& B1 t [: l3 P' u2 I
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
; I u9 V9 o A d$ T - if(!Update.begin(maxSketchSpace)){* C5 t/ B. E4 n
- Update.printError(Serial);
- J3 a U* \$ ~ y - }
% q1 }- W) u' b4 c! c - } else if(upload.status == UPLOAD_FILE_WRITE){! C7 F; m8 e, y3 R4 m3 I
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
% |: x5 Q9 S8 k. o; t' A - Update.printError(Serial);
! V6 \0 s3 }9 T. ~! J% w) H. D - }
. R6 y+ Y3 o# e4 v5 o1 n4 b' u- z - } else if(upload.status == UPLOAD_FILE_END){
$ ~- H( \4 z y- u - if(Update.end(true)){
" p- t; w$ E9 f/ o - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);, R1 C/ V! U$ C- S# w: D3 z( c( v1 w
- } else {3 D1 |1 [. @( y2 P- E
- Update.printError(Serial);
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- Serial.setDebugOutput(false);
- p& Z+ q; Q/ C' ]- ]# e - }
8 G3 H% A; ^9 T5 B+ u - yield();/ O9 _5 T# o: q6 K/ J( B/ r; B$ e
- });3 _ A2 O+ d7 R3 w
- 2 `( E2 X; \. L* X" t- y* C
- digitalWrite(2,0);
* r! A5 @* }! g% T& {. ]& \9 [ - mainAction();
8 T/ h; c3 J. ^1 [( D4 y5 B - if (digitalRead(0)){
- x: V* q; d$ p - ESP.deepSleep(0);
3 a, U% Y7 Y$ K - } else {! u- h6 d+ D$ n# T8 P3 p, V
- server.begin();$ Z. T" Q# O2 [1 b% V c1 h
- }6 Q" V j6 h' ]4 b$ h2 j+ A
- }
$ Q! {4 I" g7 J& Q+ h5 u - void loop() {
" u% d5 ?" x* h9 e$ L - server.handleClient();' Q7 [" s3 W* r5 u
- delay(1);
& U* U/ k- Y6 C3 `0 U6 o% F4 i9 j - }' p, y! e# d( g6 T( j
- String doGet(String url){7 c" O( k2 p& `% N" P- l% D) d! U: H |
- if ((WiFiMulti.run() == WL_CONNECTED)) {
$ c8 ]! M4 N0 S& s - HTTPClient http;
% k7 a1 d2 K$ H- `( g - Serial.println("[HTTP] begin...");
: F% H7 }7 `5 Y* D( l5 G( t - if (url.startsWith("https")) {
4 Q6 e9 F+ e) T1 M) G - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
6 [' T7 Z! H" b8 o D& S - } else {& T3 D# B9 t0 l8 Q$ o
- http.begin(url);1 ~2 _0 U" F: x0 P8 \2 {
- }
$ T8 x; K i+ M; A1 W1 J - Serial.println("[HTTP] GET...");9 P! V. ? J) ^4 p8 E# Z, K( [
- int httpCode = http.GET();
& g& ^' B4 a% ^3 a7 I' \3 F$ Q - if (httpCode > 0) {8 L9 p/ K1 e" @% {4 w
- Serial.printf("[HTTP] code: %d\n", httpCode);9 z5 p) H0 Z1 E/ J# M2 q( h
- if (httpCode == HTTP_CODE_OK) {2 D v& h) B! E2 L' i7 N& {/ ]
- String payload = http.getString();
+ _7 i: V- x. N& k. c2 x - Serial.println(payload);
: ]! E1 i( n- k; d; [ - Serial.print("\r\n");# g/ j }# @) b. b
- return payload;
) k7 r% v& F% ?0 f& q - }; U' J% H: i0 M# j( R6 f- L* p# Y
- } else {' B1 _* h2 U7 L, L1 x# {% [# G
- Serial.printf("[HTTP] GET... failed, error: %s\n",8 X/ u$ b( y9 ?" c
- http.errorToString(httpCode).c_str());# `7 d; H, v( Q" O: M! U3 y* C z
- }% D Q# m+ W- v0 }: T
- http.end();4 t4 T$ A6 A/ D
- return "";
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- }
5 x- Q% n% n5 ] - void mainAction() {. H/ @9 U6 o4 U1 l! }: c
- // 发送请求
4 X% a# n/ x* W# W - doGet("http://google.cn");7 @( f5 g8 _) Q' g% m8 H5 v2 y4 ?
- }2 i/ d. h3 n8 v5 @+ n1 c0 U% U
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