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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)/ d2 [, P; [; w, S5 U8 D7 D
- #include <ESP8266HTTPClient.h>' X8 K: n( M6 O5 x5 f
- #include <ESP8266WiFi.h>
+ [- y: Z% t" `& a% C8 Q - #include <ESP8266WiFiMulti.h>; P' i+ y" _4 H: y' j
- #include <ESP8266WebServer.h>
1 q! G O" M2 `+ v: E% Q, F - #include <arduino.h>
& a0 [6 J) G d- W3 |+ a; O4 z - ESP8266WiFiMulti WiFiMulti;1 g0 c+ w i2 i" Y8 [9 w
- ESP8266WebServer server(80);, G P! ~: Z3 v3 ~- `% {
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
3 P. }' O! H; |! P1 \ - ADC_MODE(ADC_VCC);# Q- O, J6 o: R5 J$ V7 N2 u
- void setup() {
1 i7 ^) m! [0 E' ]; w - Serial.begin(115200);
9 K+ T6 _) q! _) H - Serial.print("\r\n\n"); n: F) t9 ^8 k% W$ R! }' ?
- pinMode(2,OUTPUT);$ O9 J A- e* _. q2 X
- // WIFI
& S$ [. _: m6 h0 o# @ - WiFi.mode(WIFI_STA);
6 {5 r- | D4 e( J4 j, e. y7 _" w - WiFi.hostname("Sparkle");
, @1 E) Q# [* r# S( i1 @ - WiFiMulti.addAP("wifi ssid", "wifi password");
% G. [4 J4 H, _- |* ^) H- e - int tryNum = 15;
% U5 d+ z- F- K/ h. J - Serial.print("Connect WiFi");
2 J v6 i$ F" p4 ? S& q$ J. ]" \ - while (WiFiMulti.run() != WL_CONNECTED) {
5 T2 n+ p, `! n* F& H$ }0 t- b - digitalWrite(2,0);
7 }2 j+ m. i8 s; f - delay(200);" T$ Q- w+ F4 k0 H f1 ^
- digitalWrite(2,1);% y) X6 `, P6 s+ @( H) }
- delay(300);
& Z# R" O H+ O - Serial.print(".");" M; v" T0 U- }+ O
- tryNum--;. d: d4 a# Q9 R' O# {$ p! A, o
- if (tryNum == 0) {8 f3 T% H% p* @" @. I0 A; K- V
- // 1min S, W9 I% Q' G G8 O
- // ESP.deepSleep(60e6);' z9 m4 q( s' K! f! Q
- ESP.deepSleep(0);. N" F& \8 G+ B7 {& S5 z
- }! D8 P# w9 C6 u2 S- v
- }
0 {/ }3 w g# D - Serial.print("\r\n");
5 t$ N8 l' @3 U5 ?; e" t - digitalWrite(2,1);
6 P: d' s3 ] b ?0 C$ [ - Serial.print("IP address : ");) S |' |0 J, R( N
- Serial.println(WiFi.localIP());& k0 v0 V E5 U1 `( a5 N* R& y4 M* ^( Z
- server.on("/", HTTP_GET, [](){
$ M" D+ R0 N z y/ U9 R - server.sendHeader("Connection", "close");
; S6 n- Z1 }# ^8 U/ ]9 w1 z - server.send(200, "text/html", serverIndex);& R! g2 k9 r8 D* }3 B
- });
. ]# ~6 J" {3 X" m - server.on("/update", HTTP_POST, [](){4 K) v* z! Z; C/ I: u
- server.sendHeader("Connection", "close");/ V, D: g: n' c& T
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
! }9 d& \4 v& V" c+ W - ESP.restart();+ f. K2 M5 t& T8 L+ `7 r# e3 b
- },[](){
& B L/ N1 _- l3 V, K" a, T: p) A - HTTPUpload& upload = server.upload();
# e* O& J0 T, T0 R, \ - if(upload.status == UPLOAD_FILE_START){( i$ l) J" [1 J( Z5 ~' N2 ^
- Serial.setDebugOutput(true);
0 w% M% ?2 b. ]7 O0 ]& t, n; m - Serial.printf("Update: %s\n", upload.filename.c_str());6 Q9 P' E( n3 ^; G( y- O& b
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;! W/ _5 B8 g4 o* g/ E0 P4 v+ w
- if(!Update.begin(maxSketchSpace)){8 @# l2 c5 I4 F6 b$ ]6 R
- Update.printError(Serial);
$ M9 p" \+ u6 I- X - }
! q) j( [2 [4 p# S* u% X/ V - } else if(upload.status == UPLOAD_FILE_WRITE){; E" S2 q! n% w5 d$ r% z R
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
8 O4 w3 f) i# i { - Update.printError(Serial);2 K7 B1 v$ D, d* K: K0 L+ z
- }
, d/ ^4 n9 G9 X( b - } else if(upload.status == UPLOAD_FILE_END){
# \1 a* S. W! i" k2 q - if(Update.end(true)){
5 g4 l2 i1 x K# \ - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);0 |/ {- T, J! e* e9 I; S q
- } else {
8 x3 h8 J9 {6 L0 O2 } - Update.printError(Serial);/ M# x: @0 P5 K+ B
- }% Q2 o" Z; y; U6 j
- Serial.setDebugOutput(false);* G" E" }7 ~" E" y) _2 H
- }) |6 C2 w% s, \2 r2 p! U/ g, O
- yield();0 }: y( b& C* J, ~# \0 I
- });, n* f3 z2 X. O( ~! ^5 \5 T N
-
3 w7 y! |" _0 i& C1 M0 C - digitalWrite(2,0);4 n$ j* V4 j$ f. v
- mainAction();
+ X: z& z9 M, ]; a8 A6 c3 e - if (digitalRead(0)){4 o! r/ K& q* q8 l0 m5 \( J
- ESP.deepSleep(0);; f9 g$ B- ^; @
- } else {4 q9 v( d$ l# ]5 e: s( D8 u
- server.begin();3 B4 h) L# S, ]: c
- }2 }" k3 _5 u1 f; a
- } p/ u0 r5 U7 {; A7 D
- void loop() {1 L' L* q8 D& q3 @
- server.handleClient();
- Y4 D2 ^* i% `' M7 q - delay(1);
5 H( z) `3 r' k1 T( R% |; K: U - }
( D$ a! ? G1 y7 K - String doGet(String url){
3 ^9 T4 ?9 P: W+ I' z/ \- h - if ((WiFiMulti.run() == WL_CONNECTED)) {
5 l, i% j6 p$ X1 C - HTTPClient http;
5 W) R: _6 c) ~: k# P - Serial.println("[HTTP] begin...");
* H0 |& |' Q# \9 ] - if (url.startsWith("https")) {
% ~; S) ^3 {2 W - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");' E$ K" ~3 V0 l
- } else {. K# A2 U$ O) s; i- ^; @, R: q5 [
- http.begin(url);7 k& T: n0 q% V4 ]
- }
7 V2 l& u) T) K; w5 ] - Serial.println("[HTTP] GET...");. e+ c, |; Q) k, t. D$ c$ r
- int httpCode = http.GET();
: o1 [, X1 Q/ J) P' r R - if (httpCode > 0) {
3 m, V( l- ~( b% j h7 y5 o - Serial.printf("[HTTP] code: %d\n", httpCode);; }8 `/ M# n9 q( l9 V2 j: f6 b+ l! E
- if (httpCode == HTTP_CODE_OK) {
9 p7 j- f+ V8 `( _5 e - String payload = http.getString();
5 h, j9 E7 }% a% p+ m - Serial.println(payload);/ }7 r8 t/ l8 u. Y- R* c
- Serial.print("\r\n");
* G# A8 b$ c3 C9 D8 b/ v/ H - return payload;8 \7 s5 w: R8 X$ X
- }
4 _( v1 r+ R. K6 \ - } else {
4 n5 L" O+ x7 _4 z2 T( u6 V+ X - Serial.printf("[HTTP] GET... failed, error: %s\n",4 @ M. u9 Z$ i0 F& E
- http.errorToString(httpCode).c_str());
' y6 F6 b+ o- v( | - }$ u# c/ [ P2 r8 e1 x
- http.end();
/ }. k( F0 W D% n! t - return "";
$ A0 r% Q6 h* n) ^ - }
2 W1 s$ Y( p7 E+ i- o/ I. O6 H: Z$ b - }
% U4 Q+ | K( g' O8 ?+ U6 K - void mainAction() {
& m) d, d' E/ |: x5 v% T - // 发送请求7 n& s2 t( ]2 |$ j5 L7 W+ u L
- doGet("http://google.cn");0 e0 |: `+ s4 V+ _: X/ J. w/ P: ]
- }
" e( x$ d3 ^/ I) ^8 ]' a8 \3 J
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