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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)
% d% z+ Z3 O% W- y& x7 @1 Y- #include <ESP8266HTTPClient.h>) L4 h8 o, o- ~# C' y8 t0 p
- #include <ESP8266WiFi.h>5 d5 G7 b3 _, H) t6 A
- #include <ESP8266WiFiMulti.h>
' s. _; @3 V4 u6 p3 U - #include <ESP8266WebServer.h> v+ p- ^+ \7 E5 b/ P
- #include <arduino.h>
1 e6 x5 V, [3 @8 S0 Z - ESP8266WiFiMulti WiFiMulti;- l6 B4 a: m) M! j% e
- ESP8266WebServer server(80);
- H, d9 m9 K: }: o( M6 k3 @ - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
0 X* ]& Y: I/ P - ADC_MODE(ADC_VCC);
" D8 Y8 n' v7 o! ~9 _ - void setup() {
4 N7 v7 `: a4 \: B - Serial.begin(115200);
9 L" j. s6 e( ?& G# W! c5 i7 m2 K( q - Serial.print("\r\n\n");2 _+ \! M3 o' H0 P: S7 v' i
- pinMode(2,OUTPUT);
7 y5 `. F/ E5 r - // WIFI& k# D8 M+ [% J
- WiFi.mode(WIFI_STA);
- }7 |- f: b$ r3 J3 M8 w - WiFi.hostname("Sparkle");
! d, u# J' `! ]( z5 A. _ - WiFiMulti.addAP("wifi ssid", "wifi password");
- d1 r& Q/ M. G& |) D - int tryNum = 15;
( i- N" m5 S' F5 w) n. F - Serial.print("Connect WiFi");
( U4 [- Z8 j: s% G. b! N# p - while (WiFiMulti.run() != WL_CONNECTED) {
0 ~ Y% S8 p% @$ ?: _; z - digitalWrite(2,0);& u' |2 V6 y! }* \) a
- delay(200);
: Y: M8 a7 ]2 ?" A - digitalWrite(2,1);" r- g( g" W& y. P& G' N
- delay(300);8 m; p) N H& Q% }$ d4 C5 T9 R; [
- Serial.print(".");
8 M8 r% \( I3 N - tryNum--;) H! T: o! ^; y- D2 D5 w
- if (tryNum == 0) {
$ ]: C1 C' Y; v, H3 T& ]+ K: c - // 1min7 B: j4 t3 q1 w+ ^! u
- // ESP.deepSleep(60e6);
- g' N, X8 y! x8 ~% I - ESP.deepSleep(0);
6 v" ?+ h5 P0 i6 J - }
, B+ U- J8 W+ w! E j, I - }) w6 E9 @$ \% L
- Serial.print("\r\n");4 J( H: n3 ]1 |3 `: C
- digitalWrite(2,1);7 t/ N$ c4 f7 q6 Z
- Serial.print("IP address : ");% P' m5 z7 G5 q
- Serial.println(WiFi.localIP());
$ B' K8 Z, v- y7 i* {6 x' e - server.on("/", HTTP_GET, [](){
" o7 J/ o5 o; ?" N - server.sendHeader("Connection", "close");# `: b. G: ?2 {3 v
- server.send(200, "text/html", serverIndex);
2 S7 k) ^9 m' @7 j/ ]7 G/ m0 P3 g7 ~ - });
8 D5 N+ @$ a" a( F& u; M - server.on("/update", HTTP_POST, [](){$ W1 j7 F4 V: A: D
- server.sendHeader("Connection", "close");
" p1 w$ \6 N( S - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
6 J: ?: P( r& E% B: ^% l$ c - ESP.restart();
* K9 O* A8 x& ]2 d3 ?* @# ~$ e - },[](){
% h |! i0 c n2 a2 Z - HTTPUpload& upload = server.upload();
. N& a! t! N1 |2 K - if(upload.status == UPLOAD_FILE_START){
" m* a4 c; e2 w - Serial.setDebugOutput(true);
" ^0 f& P3 e0 m @ - Serial.printf("Update: %s\n", upload.filename.c_str());
3 n1 v* H) H2 y" Y - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;9 |% z8 r6 q1 u$ N
- if(!Update.begin(maxSketchSpace)){
7 Y: h; C% C% f5 R - Update.printError(Serial);" } k' Y. Z _% h1 ~
- }6 |) c6 l- B0 `3 z* z' R6 ^
- } else if(upload.status == UPLOAD_FILE_WRITE){
! a, r+ V; ]9 u# Q5 W% W% U/ t5 @( b$ V - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){# h$ s9 I" Q+ L! Q
- Update.printError(Serial);
. F f) i \0 f - } n$ K+ @$ h$ D
- } else if(upload.status == UPLOAD_FILE_END){
0 x/ L! d" s) B6 o - if(Update.end(true)){
7 H& T# W% f& Q5 o; `' M - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
* k- @' ]" C8 N* C# I" [; _ - } else {
% S7 M1 ^& J) P0 r - Update.printError(Serial);
4 l# W( a7 H, X3 _# V% s) y - }3 ]5 z$ O- F9 r5 v) ^- {
- Serial.setDebugOutput(false);3 O+ @ @/ x3 l* k1 i; @; y
- }7 i5 }' T6 P& t5 R* w% }& N
- yield();7 W, |5 b5 i6 d' z1 F% P$ X
- });
) i, }% ]" Q1 Q - 2 o2 d/ _" v- @$ H1 ~& L4 g
- digitalWrite(2,0);
6 j" X9 d. R/ m+ C - mainAction();
: u( H( {0 s9 _4 }, s - if (digitalRead(0)){; Y7 v c3 g( [" \- a
- ESP.deepSleep(0);
$ T4 J* v8 y5 @" \ - } else {8 h3 \: n& o' P$ P) I' @
- server.begin();( e7 [: j2 ^. p6 \
- }, o9 P# A1 ]9 `3 v
- }0 `* C. k* _8 \/ i& d, {' x
- void loop() {. t: t T/ K! L, U' ^9 r
- server.handleClient(); F9 U% b5 y4 B$ e
- delay(1);1 } V b8 }! K
- }
R* E: m1 W- M$ e( ~( j8 S - String doGet(String url){
! q- h* _3 k8 \: w A" q - if ((WiFiMulti.run() == WL_CONNECTED)) {2 T' r; Y; j) w
- HTTPClient http;4 D, _% z u* s S5 T" {
- Serial.println("[HTTP] begin...");. b$ ?8 E% J6 R% n" ?
- if (url.startsWith("https")) {
7 ?) r. K: y1 C& @8 g1 V* q$ L8 n - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
; h; ^4 F# k% @/ Q8 o" q1 I1 \ - } else {3 o" G4 b- r6 m+ O- ^2 s; z* H$ J
- http.begin(url);
1 |+ @& k7 ?& D8 H; r1 b - }
6 V0 e& C" F9 F- y - Serial.println("[HTTP] GET...");4 A0 ]4 R/ B: y( a8 Y U* k
- int httpCode = http.GET();
# ^5 U) m5 f1 P - if (httpCode > 0) {, p, G+ U( g4 U# f7 a
- Serial.printf("[HTTP] code: %d\n", httpCode);1 D% ]+ y. K2 p( X" A
- if (httpCode == HTTP_CODE_OK) {
$ ]5 T% ?; b7 M8 a R- s% \$ ^2 s - String payload = http.getString();
4 }% C, Z1 K k2 x3 p - Serial.println(payload);1 R' J0 `! g2 n/ {9 _( ?
- Serial.print("\r\n");
: ~* ^0 V" Z5 N# `; C7 ?: n% U - return payload;
. E3 Y! ?' K& U# t - }, a7 d$ J( R w$ g0 t% ]9 C1 d8 ?
- } else {0 m, V* a# ^5 X# @# W( @7 A$ I
- Serial.printf("[HTTP] GET... failed, error: %s\n",
0 `, J3 B1 i# _% B - http.errorToString(httpCode).c_str());
9 }9 Q# Z' N0 Y2 R0 q1 r - }# c! h( c2 Y1 \, B: S6 Q& w7 @
- http.end();2 U; F: c. O- \
- return "";+ }& }3 R3 f1 A% a0 d' W
- }
, t. z R9 F7 P2 G p - }
' n% L6 _$ S1 t/ w2 n ^3 \ - void mainAction() {
( x) b4 e9 [" c" V% O" J( A - // 发送请求
2 ~( }: T/ n. Y - doGet("http://google.cn");5 i! P# a( O8 U, j, r% D
- }
9 b. ]$ G- i- r
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