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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)
/ y& k/ N# f2 [ A% n8 N- #include <ESP8266HTTPClient.h>
5 G3 e1 J+ u3 C, k6 A- Z3 W7 x( E - #include <ESP8266WiFi.h>7 I0 L) w- }$ m6 o: g, q
- #include <ESP8266WiFiMulti.h>. y, d0 J9 h( n" @; R
- #include <ESP8266WebServer.h>) u) S0 F+ R @7 ?5 t
- #include <arduino.h>
$ H1 u" G5 T) H/ m' j1 l - ESP8266WiFiMulti WiFiMulti;5 i9 B5 S. L K
- ESP8266WebServer server(80);, C4 X; Z- d2 R# x$ }
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
0 [% t6 h% a$ A" ?, n - ADC_MODE(ADC_VCC);
# \8 p( ~/ D& U - void setup() { H; g6 P- { Y8 ~+ E# I) A; e
- Serial.begin(115200);
4 t, C8 J* M2 d4 q# x - Serial.print("\r\n\n");' ^7 i5 s5 D- f- e8 O& w# ~2 r R% b
- pinMode(2,OUTPUT);" `+ ^4 x, |& I: n
- // WIFI
& h8 O/ j# n5 w* u- w# c - WiFi.mode(WIFI_STA);* `/ o: b. N. Z& H
- WiFi.hostname("Sparkle");
5 w6 J0 \+ ~/ n5 N, h9 z2 t5 Y$ e - WiFiMulti.addAP("wifi ssid", "wifi password");
% W$ U* A. [8 ~ - int tryNum = 15;
$ E8 k$ J7 [/ Y4 r/ b$ m - Serial.print("Connect WiFi");4 [% @4 I6 O: O& R$ p
- while (WiFiMulti.run() != WL_CONNECTED) {. R, `! ^: }6 P; z, k; [; k. v
- digitalWrite(2,0);
# q2 [. P1 P' w1 A- c - delay(200);4 w. C; f, p i! n6 J; J- a: k( g
- digitalWrite(2,1);, U, L: N S- u0 |' f) V' ]+ n- q
- delay(300);! s5 E9 i4 N$ \6 C7 q e
- Serial.print(".");" _8 m. s$ v( d/ `' P* N
- tryNum--;# w8 h# ?% p1 z" o5 j" C) u: t
- if (tryNum == 0) {
& u. M2 _3 i% w* W - // 1min
+ K5 L% ^% Q' n& K& H# `4 W; ^ - // ESP.deepSleep(60e6);1 H7 {% b8 i2 l8 _
- ESP.deepSleep(0);
$ S# C+ u/ |1 k% D - }
0 W% `3 t* \" g) Q* o$ b" f' a - }
/ B9 l$ \" }7 h) S, d% V - Serial.print("\r\n");5 H- F+ ]5 ?. r2 r* F; R! D
- digitalWrite(2,1);
& @! h$ t6 Q) C; A# b0 I" H - Serial.print("IP address : ");
! k8 u4 m2 W/ A5 n - Serial.println(WiFi.localIP());
! j* d2 H! L0 ^5 A! [# \* d - server.on("/", HTTP_GET, [](){
0 d# g3 O: s2 v+ T) F6 l - server.sendHeader("Connection", "close");5 i2 _6 |" ^! e7 \5 s8 D
- server.send(200, "text/html", serverIndex);0 d& A( `4 d- O4 R$ e, M; E+ N! |
- });
* [7 D" [) \0 [: l- B' M( F - server.on("/update", HTTP_POST, [](){' ^+ o; F& J8 R* e& u" b9 W9 D
- server.sendHeader("Connection", "close");
" ]! P! ~' g' @/ b. Z% ^$ l) z - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
. e& m$ C P& a5 W b9 g9 C- V - ESP.restart();
* p( l# H! @, ?2 \+ k- ^2 Y - },[](){
, g& {* E- X: u( a - HTTPUpload& upload = server.upload();
% V& n% b' B9 X, M. I, e5 t - if(upload.status == UPLOAD_FILE_START){8 ?9 q; N8 V" X% k2 Y
- Serial.setDebugOutput(true);
. ~. X/ e6 V7 S3 V# K2 q* X1 ~ - Serial.printf("Update: %s\n", upload.filename.c_str());
* h/ u* r; _0 u2 H5 W - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
; l; f ?' G* r3 m# N. [$ f - if(!Update.begin(maxSketchSpace)){
, c, G$ _- B1 m5 o2 S - Update.printError(Serial);
( h+ ?) I' r, W+ E' c+ u7 s: W - }' @! O6 t. U' F: }& n
- } else if(upload.status == UPLOAD_FILE_WRITE){
1 T0 @( x% o6 k# s) O - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
0 l; |' R( \' r3 x% y6 i7 a - Update.printError(Serial);
" o, ]% a0 e% x1 h4 a - }
' a2 l) V: ~# @ - } else if(upload.status == UPLOAD_FILE_END){
) O* v% T; W: b - if(Update.end(true)){
& Z9 p# n' ]. L8 _3 E5 G - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);: V' e6 R, ~6 w
- } else {
0 t. ]) T' `( r% \4 O: \ - Update.printError(Serial); K' L! o* D# d' j) b, S0 r: m) G- \
- }& S- g$ `) d f& y7 H o8 a! n
- Serial.setDebugOutput(false);7 i2 k( d0 `; Z- E, z
- }) x) P$ O! Y+ @! U9 f7 P
- yield();
' S; w2 H& K; [8 u - });
6 x# G3 L, R6 R) o3 q -
+ U3 C0 d! ^9 E, a! e6 e1 X - digitalWrite(2,0);
! }( ~' U8 H1 q: j - mainAction();9 q6 _% F' o& m9 c
- if (digitalRead(0)){
$ o4 h c0 y4 z, ]/ g - ESP.deepSleep(0);4 Y7 A. E! v! H0 H( K I, U
- } else {
9 M# `, u1 I+ U - server.begin();
4 H6 R! K5 m1 H - }
) J/ j' H2 W% ^9 t' L+ N - }! Z" \, p+ T; M) V. i" [$ Z- X
- void loop() {, {, S# Y6 B4 G$ }4 _- t- ~ [
- server.handleClient();( Z) W" n6 v7 Z: {- _, x- D4 T- j
- delay(1);. P. [5 o) g# q5 k. h
- }; p: r( M4 J& {- T* o u
- String doGet(String url){
% D% g, l; O1 @% J& V. H. s - if ((WiFiMulti.run() == WL_CONNECTED)) {" J& J$ ]& `; N2 I7 [/ L& g) ~
- HTTPClient http;) D+ y8 }1 H# I5 h1 g
- Serial.println("[HTTP] begin...");
$ j v7 u, i4 F3 d$ N! N - if (url.startsWith("https")) {
% Y% s1 Z: q& {/ z, T& } - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");# R3 N* S( z2 D _
- } else {1 Q/ G3 A* [: c3 w
- http.begin(url);, A P% ?$ G* k# j5 o! S, C' i) e
- }) @6 h( t! S) ~0 [0 y7 W- _4 _: X$ B
- Serial.println("[HTTP] GET...");- W* O# z: \1 S. p! B9 n0 h/ K* n
- int httpCode = http.GET();
2 X/ ]7 K |# B+ J - if (httpCode > 0) {
, a6 ^% Y* |/ X: C/ K - Serial.printf("[HTTP] code: %d\n", httpCode);
% D: j7 m" G4 V/ i! J; j/ s - if (httpCode == HTTP_CODE_OK) {
' J; c! G" M# e6 T - String payload = http.getString();
" B/ S% F5 [1 r' t5 V& v! g - Serial.println(payload);
! R( w9 ^6 k4 {* G5 h, p& O { - Serial.print("\r\n");4 [9 }, A7 d. M6 j4 S4 ]
- return payload;, l: {4 S D9 E9 W
- }6 V2 X/ b' d( A* v! y8 J
- } else {: @ o. Z3 p$ x/ k- b* V. M
- Serial.printf("[HTTP] GET... failed, error: %s\n",
( ?' q5 u; d" q5 F - http.errorToString(httpCode).c_str());) ?6 I& w' X4 Y0 C' Y
- }3 Q* G6 q. s+ Q8 f( d8 K2 x% P: E
- http.end();
7 P+ @4 U2 O+ i/ q, m; Q - return "";
4 |+ B, t4 Z$ d: i- a) D - }
r; p/ f4 w, j3 S2 q - }
+ z5 A1 Q$ X: b6 j. K, X1 m4 ~ - void mainAction() {5 n2 C' {! {1 P0 U7 J6 _8 e
- // 发送请求
, ~6 B7 ^- g2 u - doGet("http://google.cn");2 E4 h8 o$ R: ? q, m" ?
- }7 u5 Q8 E- M/ [# W2 A' _
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