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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)/ w# X2 \7 Z/ r0 E& S# V0 y( n% o
- #include <ESP8266HTTPClient.h>, H5 F3 J! C# K8 y, ~* }. \! U
- #include <ESP8266WiFi.h>
, J6 a4 m2 R' b- S X, }, v - #include <ESP8266WiFiMulti.h>
7 a% A. T: r! J2 X. O& }& A - #include <ESP8266WebServer.h>
. O1 D& W, D2 ^2 L - #include <arduino.h>9 r/ P) a' ?; U) P+ q0 K3 u. B
- ESP8266WiFiMulti WiFiMulti;' `/ H5 i- M1 {7 S8 r
- ESP8266WebServer server(80);& q8 V- H7 B& c q, a. ?) X
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
, {) C" n+ B7 N( a6 l. x, V - ADC_MODE(ADC_VCC);& v5 v. @* B: c4 w/ b! x; {" D
- void setup() {6 ^' X5 ~2 z9 z3 f! J* T+ Z
- Serial.begin(115200);
' N: l) \+ L9 _) e$ | - Serial.print("\r\n\n"); ^+ J% Q5 Z' a: q0 i& n; {
- pinMode(2,OUTPUT);
! I( S/ W* k$ H0 S$ F. b - // WIFI
6 ~; D# j/ O6 ~ W. b Z% Z - WiFi.mode(WIFI_STA);$ W; H: K3 R% Z
- WiFi.hostname("Sparkle");2 h) w$ X8 U2 t) Y( Y, x
- WiFiMulti.addAP("wifi ssid", "wifi password");# ] v( k7 f. m5 b2 M5 G6 Z- N
- int tryNum = 15;' X) h/ j" B$ ~0 C7 m$ y& C
- Serial.print("Connect WiFi");( A7 O; O/ d4 w3 r, h r/ b
- while (WiFiMulti.run() != WL_CONNECTED) {' q3 n. i. _; Q6 }; S! Z
- digitalWrite(2,0);
. s1 H7 `7 J& Z b; b+ Q5 r - delay(200);) L- _/ ?7 q, }9 c( P: l
- digitalWrite(2,1);
, ~. w5 g e2 x/ i - delay(300);
, b+ `5 W9 |: l2 e+ k - Serial.print(".");$ d6 J g( s+ ~+ G- D
- tryNum--;
0 h" _9 j8 X/ t4 { - if (tryNum == 0) {0 c! T. d3 g( b& G* P
- // 1min2 _; y3 v1 P7 [, w
- // ESP.deepSleep(60e6);2 B3 P! n1 s S" c- [( z5 P# t+ o; Z
- ESP.deepSleep(0);
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- }# o- R- b; Q% w' g1 ^! P
- Serial.print("\r\n");' v6 d0 I6 x3 o9 v- [
- digitalWrite(2,1);3 r4 \; Q# @: C
- Serial.print("IP address : ");
3 y# S. E9 l) x - Serial.println(WiFi.localIP());
9 N& a b: W) B& U' C - server.on("/", HTTP_GET, [](){- [9 r2 A/ ]! O: p2 _9 M8 Y* T
- server.sendHeader("Connection", "close");' ^# E, q9 N5 N" N# c! V
- server.send(200, "text/html", serverIndex);$ j6 Z# N( U, i4 |8 o: b+ x
- });: n4 [+ V/ J* P1 T. R N
- server.on("/update", HTTP_POST, [](){, M( C7 k* c- x
- server.sendHeader("Connection", "close");. J6 E; t! W- I) [
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");+ v) ^0 g0 Y$ M4 b! C' `
- ESP.restart();5 T G0 V! h+ V3 p
- },[](){
8 M+ {& u+ Z: P$ }8 J - HTTPUpload& upload = server.upload();
, J& U5 z: O$ _! w5 B - if(upload.status == UPLOAD_FILE_START){
: g ?1 {8 l e t/ u - Serial.setDebugOutput(true);/ }4 g1 ^( _/ ^0 P5 v
- Serial.printf("Update: %s\n", upload.filename.c_str());% [: @+ j* K; W9 I
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
1 B( Y$ b& d- x% z7 E! z, p - if(!Update.begin(maxSketchSpace)){- [! V4 d4 s8 S5 q3 Y( P
- Update.printError(Serial);
* p7 [; ]0 L% k' @0 `+ l1 | - }
4 B$ s; C& g" a7 t' Z0 W% @ - } else if(upload.status == UPLOAD_FILE_WRITE){) v" i) @# \! j% I3 q( R
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
+ d3 ?; a% m# X5 n - Update.printError(Serial);
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- } else if(upload.status == UPLOAD_FILE_END){
, I n3 B4 D' x# u - if(Update.end(true)){6 r" V9 i& r9 T* p. `9 S' f. u8 p
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);5 @* e( o" v2 C Z2 C
- } else {
" x3 ]+ n4 i% `- h" n9 m; ^ - Update.printError(Serial);
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- Serial.setDebugOutput(false);/ D5 x: I8 _% y
- }# \( r; n# U$ N* ~- y9 T1 F
- yield();6 T0 @; P5 h1 y* ]6 w q
- });& C& B6 O) m$ f7 W/ n: w
-
, Q# y5 {* U6 M" i - digitalWrite(2,0);$ u# ?1 Z- d! g: P# A
- mainAction();
1 D8 q6 ?( c* K9 }- t - if (digitalRead(0)){
3 Z f% \" S" b* I# p - ESP.deepSleep(0);
% \! C/ c2 p7 U8 }6 O - } else {
! L) h, x0 L/ i# i7 m( l - server.begin();
0 C! g4 F/ k. n7 a( v - }
7 {. G& @) d; i2 ]# g - }- z6 Y* d: N3 C9 p
- void loop() {
0 H# U2 j# O) ^1 Z1 { - server.handleClient();' [& T2 i5 V2 n0 S2 H+ n) {% H9 z
- delay(1);
$ u) D, J$ x/ c& k, ]+ v, v; _3 a# d - }' W) O% ]+ g* Q5 ]8 s+ v/ {" p
- String doGet(String url){1 q( _# y3 E. M5 c
- if ((WiFiMulti.run() == WL_CONNECTED)) {
, g3 Q# c# ^9 m0 m - HTTPClient http;
2 g7 R8 w( e, B8 a6 C. u3 }* { - Serial.println("[HTTP] begin...");6 Q5 i4 n" r' @: A
- if (url.startsWith("https")) {
2 X8 H, j5 Z! z! U$ Y; [ - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");% k. t7 H- s. q. ^+ _! T
- } else {
: b: A2 k5 W ^2 y$ x' ~ - http.begin(url);# K3 l0 ^% I/ K7 f
- }
$ |# V* |5 G0 y+ z. g - Serial.println("[HTTP] GET...");4 _7 D( Y, f, E7 K1 U
- int httpCode = http.GET();% n4 \" {2 x0 r! e8 y! ?
- if (httpCode > 0) {5 _0 Q" f3 A! T+ [$ G
- Serial.printf("[HTTP] code: %d\n", httpCode);- T8 v b: L. `3 b4 i' `( n7 l: \
- if (httpCode == HTTP_CODE_OK) {7 g* m! p; v% P
- String payload = http.getString();
) L9 j( _ |# @5 U' ~5 u - Serial.println(payload);
' P3 v6 g3 X) w- y* i% J) v* G - Serial.print("\r\n");7 \ [" y) i, o1 y- y- P
- return payload;6 i/ G4 l0 }6 J: M$ `6 W; b
- }
3 C" |8 Y& C- c" i! C, j4 u - } else {
6 L; d# B8 Z. t( `! x6 U7 v - Serial.printf("[HTTP] GET... failed, error: %s\n",7 T' u9 C! Y. T8 I0 D
- http.errorToString(httpCode).c_str());
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- http.end(); t( r" @6 P. @1 v8 j/ y% {2 i
- return "";
( R: A& c/ O) \! a+ g - }
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- void mainAction() {+ g/ Z/ `. {! P
- // 发送请求" n! q, Q) v& q- N/ p2 q
- doGet("http://google.cn");! Z2 Z- O+ z2 o; F" G- v! W
- }. F: \# n, [) ^5 }7 s! g+ l' W
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