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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 l- z! Q5 L- s* G5 K
- #include <ESP8266HTTPClient.h>/ ^( Q+ m5 M" z, t
- #include <ESP8266WiFi.h>
, p) _# `6 Q* }$ E- X( M6 L - #include <ESP8266WiFiMulti.h>% Y8 _8 R$ w- b) s! Q
- #include <ESP8266WebServer.h>$ x0 {. Q( }, k8 X, h
- #include <arduino.h>0 q. t7 W0 u# R3 l3 t4 I; d
- ESP8266WiFiMulti WiFiMulti;% I+ G% p9 {/ v" B& _
- ESP8266WebServer server(80);: @# |9 p3 u) b2 B* Y
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
0 |) O: A. F9 {7 k- H9 p$ G) ] - ADC_MODE(ADC_VCC);3 y X% ?; A& d, d9 G- j" @
- void setup() {
+ V& V) M* X1 X8 D& v - Serial.begin(115200);
: {: s4 w8 y; q. u, t [+ z - Serial.print("\r\n\n");; v& ~$ H* O& c
- pinMode(2,OUTPUT);
& P6 j! A+ g# K - // WIFI9 v5 r" C K. U6 H* w
- WiFi.mode(WIFI_STA);
+ b, }" d) P8 o - WiFi.hostname("Sparkle");, Q& m+ h* U2 d. ^6 T: C' a
- WiFiMulti.addAP("wifi ssid", "wifi password");
! o8 g7 v/ ?/ F" w- t5 @0 s - int tryNum = 15;1 Q3 ^# X% t6 n8 j3 Y6 b
- Serial.print("Connect WiFi");+ a! q, u1 y+ o( h7 t/ K
- while (WiFiMulti.run() != WL_CONNECTED) {: A6 n; K* w" Q* z% J) M- l
- digitalWrite(2,0);
9 N4 T& D3 E3 L0 ?# l - delay(200);
4 Q3 y- V' Z) W* R4 ^ - digitalWrite(2,1);
9 N6 x. P. [2 W - delay(300);* W8 s+ c; C Q0 F8 v1 y8 c* L
- Serial.print(".");
3 D8 r$ _) O6 e! S7 x4 b - tryNum--;3 @# K, ?* A9 S# e* S8 K
- if (tryNum == 0) {- |; U+ X2 L j* f
- // 1min
1 B+ s* t! N/ ?$ |1 S - // ESP.deepSleep(60e6);* z: c; f$ P4 O# @- [* X1 k6 D
- ESP.deepSleep(0);
9 {$ I2 E, ?5 A. i; T+ P( l - }8 r3 I; m) _" g2 n9 _8 I- g
- }
$ z# x9 F( c, L, H% k; w( e, f& o - Serial.print("\r\n");( }: X7 }! I% F
- digitalWrite(2,1);' e$ z5 e5 q# v* _
- Serial.print("IP address : ");2 f& Q8 h0 d* @: [+ W. l n1 K
- Serial.println(WiFi.localIP());
) q) c4 y' u/ ]8 M0 L b* l7 } - server.on("/", HTTP_GET, [](){
2 B# C1 i9 S5 Z1 o) b - server.sendHeader("Connection", "close"); h' x9 o$ G8 e; S% y0 o, k
- server.send(200, "text/html", serverIndex);6 ^7 ` y) ?2 D4 n2 k( w0 v
- });7 O1 S6 l6 V, d( t3 {5 d) m
- server.on("/update", HTTP_POST, [](){/ G P K/ h, M: J3 F1 \
- server.sendHeader("Connection", "close");" W1 w2 F0 `9 H: Z
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");" {7 Z$ {! j: m y& d/ x, U
- ESP.restart();& c( t7 e4 z- a- Z) r
- },[](){- {; f( L& E& A; ^5 V
- HTTPUpload& upload = server.upload();
' ]6 S& K0 p2 f: t+ E- T! |1 S - if(upload.status == UPLOAD_FILE_START){ E; @- g) Z) A
- Serial.setDebugOutput(true);0 `: l, s5 D; ~
- Serial.printf("Update: %s\n", upload.filename.c_str());; t* V& M c% E' z( C" a, H# [
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;# U8 O1 b X+ v% m; R" l0 p" \! e
- if(!Update.begin(maxSketchSpace)){' q s% }. U8 H- G5 z
- Update.printError(Serial);# ]* O' i! k4 m9 d8 b# j$ L0 n
- }
6 K' }" [7 t* |+ j3 o$ ^ - } else if(upload.status == UPLOAD_FILE_WRITE){& W2 b0 C) _2 ~: W6 Q5 ]9 G
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
* y5 G/ P) [$ K" m) b& N - Update.printError(Serial);& K/ m) b- t$ n$ Z& k* E
- }3 v, t) S3 P6 T0 n( E% b2 R
- } else if(upload.status == UPLOAD_FILE_END){/ t- K: v* W0 W* T
- if(Update.end(true)){
3 E0 A0 f$ S" [7 | - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
8 ~* g6 N8 q9 h8 Z& Q - } else {+ J5 ^0 a9 J: ]) t. \
- Update.printError(Serial);
$ |0 Q' \0 q/ p9 @! [; D6 m0 a - }
4 w3 h5 P- C; [5 K; y4 t - Serial.setDebugOutput(false);
, B' [+ f! P& w6 O! b1 J, n+ f - }7 o$ @2 Z& O/ F& d# f5 {
- yield();$ Z* K; T# T. c! C7 r T$ A
- });0 S9 a4 } u/ o
- 7 r3 C Z2 d( } U; a
- digitalWrite(2,0);
# j: w. G" e: _5 M9 E$ |. ~# u9 X3 a - mainAction();, z4 M2 ?) w, E; n8 }$ D/ V
- if (digitalRead(0)){
7 T# K/ {, L9 I6 B" j - ESP.deepSleep(0);4 g: Y# n* q/ z2 a" c
- } else {
4 `/ g) t. h) v& N - server.begin();7 b Y( k s g& u6 H3 K+ i
- }; G e& _, y) A" Y7 m
- }2 w8 O6 t% c4 |2 E! R9 B
- void loop() {
- j- A8 s8 d4 x P$ ^3 s) I - server.handleClient();+ N6 l. x: Z9 b/ N
- delay(1);( v! W) m0 X+ g6 e, Z& g- s
- }8 O4 d- a) Q: A' [: G9 w0 e. O. ~
- String doGet(String url){8 `( Q6 d4 Q- [! j' a- i0 j6 H
- if ((WiFiMulti.run() == WL_CONNECTED)) {
C5 {. y. T9 {: D/ F0 p - HTTPClient http;
$ l* ]1 `/ p0 e" M5 G, k - Serial.println("[HTTP] begin...");. g+ a1 V( G' `% o8 h
- if (url.startsWith("https")) {
' j/ l( _4 E6 z# m1 w - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");% l2 n1 y0 f3 m$ T1 C( c
- } else {
) D" q6 e; v. u+ w# v$ L. n5 f& F% d - http.begin(url);
! x( Y! \' a7 H* Y$ t a8 V# Q6 N - }' F9 z0 ~; J& h, K1 B9 G
- Serial.println("[HTTP] GET...");0 `+ [2 p4 _; Q9 | Z9 Y
- int httpCode = http.GET();2 ~5 q U: ?, [+ ~
- if (httpCode > 0) {
7 n' _; p1 w! s) i8 x7 F5 s' w2 C - Serial.printf("[HTTP] code: %d\n", httpCode);
" L+ G% I1 |, K- ] - if (httpCode == HTTP_CODE_OK) {1 P* E5 ?) b2 i4 o) U
- String payload = http.getString();
0 P. D( a! N: y# R$ T5 r - Serial.println(payload);
- }. \7 r0 v& K p - Serial.print("\r\n");
; |+ S% h' ?% g - return payload;
* A0 _3 D0 R5 J# _ - }& v7 h0 V+ `5 @' R0 D( B/ @. Y
- } else {
5 h* o* I- Y. P! ]3 ?) f. |. d6 M - Serial.printf("[HTTP] GET... failed, error: %s\n",
K3 b# ^/ u X - http.errorToString(httpCode).c_str());* Z+ U9 C) G, e- z8 S0 r+ A
- }
5 I! _: W( ~( S1 q. Z1 _* M - http.end();) x/ B9 ~- R x; J1 e$ y2 u/ d8 g
- return "";) C" I3 H# T6 d: E8 f4 G/ _8 A
- }
: s r# D. k( p1 x2 I - }
+ {. \, R% ?- N1 k% r - void mainAction() {6 {( z! d' ^( \* x; D
- // 发送请求
( n( V$ P8 j/ |! A0 J. U$ D6 ` - doGet("http://google.cn");
3 i& y) V$ Z2 l5 X! C; ? - }
% {4 G% Q7 w; T) X: b3 V
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