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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)2 \( m0 I6 w& _2 u2 u$ r
- #include <ESP8266HTTPClient.h>
5 I4 h! C1 Y; B9 Z - #include <ESP8266WiFi.h>. p& ^& ~" Y& y8 j @# K
- #include <ESP8266WiFiMulti.h>
* k+ I- T& x" R0 F) ]1 Z# \$ T, `7 i - #include <ESP8266WebServer.h> ^! }: p5 I$ b# F
- #include <arduino.h>; ?7 P( x5 Q; K2 X, U
- ESP8266WiFiMulti WiFiMulti;( M+ @5 e5 `7 c
- ESP8266WebServer server(80);3 P6 F' L) h, u
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";6 B* c& k9 ~7 q' y
- ADC_MODE(ADC_VCC);
3 r, M2 S+ f$ f0 J2 v0 c - void setup() {
* y$ V, U6 ^9 |6 a$ A# h - Serial.begin(115200);7 w, O; k# t7 ?4 e0 U6 D' Q
- Serial.print("\r\n\n");/ _9 g9 p7 ^; Q* n: v- O! N6 @
- pinMode(2,OUTPUT);+ E, X) j' F& S, m/ g$ Z/ a7 |
- // WIFI$ i' @$ @* j) t, D4 S
- WiFi.mode(WIFI_STA);
8 _1 ^' g8 E! b* n" H - WiFi.hostname("Sparkle");
0 m: v, z$ ? r4 h/ D# x5 J5 e - WiFiMulti.addAP("wifi ssid", "wifi password");2 }% b9 h( v7 j( \, |, t
- int tryNum = 15;7 _! g% v2 s$ u
- Serial.print("Connect WiFi");
% H2 W) I( U' \& e. h% W - while (WiFiMulti.run() != WL_CONNECTED) {4 U( C9 b2 \+ @! k% u
- digitalWrite(2,0);$ c% r- R% v" ]4 g' T
- delay(200);
: V) u, ^. G A3 @1 b. g - digitalWrite(2,1);
" y9 i3 }% W: K$ k# s - delay(300);
0 R8 u8 j7 }! z8 z" k: L2 t, O3 D - Serial.print(".");0 X/ O$ @( q! M( L" g8 C! [5 f
- tryNum--;" J" b; x) n" J. D2 K' Q4 Z
- if (tryNum == 0) {
# R2 G4 I6 }" m9 B; m- E1 Z4 ^. o - // 1min2 K: P; S; T4 p: J# ]
- // ESP.deepSleep(60e6);
7 k w, Z$ d8 g/ a& f! [* y1 g6 ] - ESP.deepSleep(0);) F2 H9 } `# t* Y; l0 M
- }
) D1 q: N. V' u& V( c3 @5 Z! [ - }' L" _- X& D1 S5 f, a
- Serial.print("\r\n"); d9 g) I" F! N# U& A: @4 G
- digitalWrite(2,1);
7 I; W. Y3 i9 ^1 m8 Z) h - Serial.print("IP address : ");
: f: W. ?+ D1 |4 b! C, G - Serial.println(WiFi.localIP());
1 V9 q* _+ j# Y* f% ?) i - server.on("/", HTTP_GET, [](){/ v& h) k7 o4 R2 W9 o& Z
- server.sendHeader("Connection", "close");
# N. y6 Z) R- V* M2 i# I - server.send(200, "text/html", serverIndex);- B! L0 m" x3 T7 Z
- });, l) ?8 b0 r& V" {5 d7 L
- server.on("/update", HTTP_POST, [](){3 n4 H) j1 l m8 \3 d' W
- server.sendHeader("Connection", "close");
: {4 }9 o+ F5 C* _4 v8 E - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
$ J8 k4 A! c+ i; E9 Z' n - ESP.restart();# Z5 x, s/ m8 d$ Q" h1 |
- },[](){
& w$ z! m! Z0 g% [8 Y* a - HTTPUpload& upload = server.upload();. w: ~# m3 x3 J Q* U }) |
- if(upload.status == UPLOAD_FILE_START){% f( C* k0 u: S# o$ ~' a
- Serial.setDebugOutput(true);
) h. @! m; I9 {1 [0 {% c- q! J! }( n - Serial.printf("Update: %s\n", upload.filename.c_str());) n, M7 s [7 U) D: U9 D. @
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
3 I! E3 `/ Y3 Y - if(!Update.begin(maxSketchSpace)){) V7 T$ J. \: |& V. G) Z
- Update.printError(Serial);! W4 P) k) ~7 b
- }" d* p1 l I# b) e; `+ z D$ s) f! l( B
- } else if(upload.status == UPLOAD_FILE_WRITE){
+ F) ^8 U, s$ B5 s* U) h3 y - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){/ X3 d: p% k0 [5 r( i. A+ Z
- Update.printError(Serial);
; Q. |4 g4 d' _4 D& N - }9 z# U6 ?$ A7 W7 F5 i. ^! _
- } else if(upload.status == UPLOAD_FILE_END){
% y7 X+ ]" E" s2 d - if(Update.end(true)){
. T8 D# O3 f7 [0 Q9 H - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);6 |' i O7 S! w; A
- } else {
: k2 `4 k2 U; W9 G. C5 d1 u - Update.printError(Serial);
. K1 c; G4 v% x - }7 G0 S u+ C/ S: P! W
- Serial.setDebugOutput(false);
+ ?8 \; m. Y! A: H7 r/ v2 k& m - }, _+ Y9 H- c" O# t" N' S7 w; ?# Y
- yield();9 i4 |( q; V5 y2 }/ w
- });
8 y0 i/ z, n1 C- ]3 @1 [ -
3 @- i( I7 s" {9 r' W3 E, Y% T - digitalWrite(2,0);( u9 H$ p/ Y7 N; s
- mainAction();* [0 o# e4 B* J7 ?
- if (digitalRead(0)){
* I: N, l e1 I - ESP.deepSleep(0);& T* ]( k* h+ Q* z+ m" J
- } else {5 A, D# P! y5 G8 M
- server.begin();
% y4 o# b) e6 ^; \ - }
% P( d9 D u# N0 M - }/ a K6 m R' m( H! y
- void loop() {7 G9 [& E+ L$ b4 o! ?8 ]
- server.handleClient();' K) N' u6 W' k% F( _3 h! [
- delay(1);
" K ~; q3 J! y2 I6 f - }: X R4 N. ?# Q: B4 B/ D) o9 w
- String doGet(String url){
; L. P8 N! V! Z6 U - if ((WiFiMulti.run() == WL_CONNECTED)) {
2 K5 M( v/ c: h8 h R - HTTPClient http;! i% b6 `. [9 z8 l4 I
- Serial.println("[HTTP] begin...");: ~7 E7 s( M# z5 z5 S" d
- if (url.startsWith("https")) {9 g! G& i) J" m- y" J" T8 D, J' o
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");. H3 \4 S! W3 W" O; D
- } else {* q& a! y) f D6 P1 w3 T4 D% j
- http.begin(url);; c6 E, g# z. V& _' G# b( E
- }2 \( k6 H( x, F: f" ?# |
- Serial.println("[HTTP] GET...");* U- H" s/ d' x% H8 G
- int httpCode = http.GET();& C% S$ G2 y: p
- if (httpCode > 0) {
( U. D8 Y- Q( {4 U: ] [ - Serial.printf("[HTTP] code: %d\n", httpCode);
6 @9 ~( {) z# b$ c - if (httpCode == HTTP_CODE_OK) {+ s! m+ ]7 ]* O% I
- String payload = http.getString();( m, u0 R2 c/ h
- Serial.println(payload);/ r- `$ s) t+ h8 i$ ]+ l
- Serial.print("\r\n");7 H- W0 j# y* Z( R, z. ^
- return payload;
! T! N( s- K4 {( D2 y" C - }
$ l0 F% ~, M% J$ d2 Q2 Z: [ - } else {
}4 {& a5 |) Q( ~ - Serial.printf("[HTTP] GET... failed, error: %s\n",0 i( }8 T/ w' h, E6 ~) @& `
- http.errorToString(httpCode).c_str());0 D* I. Z$ x9 k. ]! \
- }
# E2 \; H4 C$ A! t# B! b' \ - http.end();
' U7 ~. v- p* U$ z* R9 p - return "";9 i6 ?4 N" X* j5 m
- }
+ ?* ?, Q2 E1 _' w1 k1 U - }7 }+ A5 g. i# U3 x1 s0 V" i* s" L
- void mainAction() {# K# X% h6 C. G$ O& I: r- c
- // 发送请求
% o6 s- D' B8 t+ f# {" i6 m - doGet("http://google.cn");* e P* }- H4 n7 l* ^
- }! I3 Z8 b3 j6 h4 z) p' ?. R
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