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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)# _% `1 x! ]8 e' G0 p
- #include <ESP8266HTTPClient.h>6 ~, U! x- L, p0 x
- #include <ESP8266WiFi.h>
! G( f# ]. u+ B7 \, l - #include <ESP8266WiFiMulti.h>0 d' M( e, M2 K7 _- r
- #include <ESP8266WebServer.h>. U. ^" f3 t$ n
- #include <arduino.h>3 o8 D$ Z; n$ u1 T
- ESP8266WiFiMulti WiFiMulti;
, {6 ~/ H+ a: v! V3 r% p* z0 p - ESP8266WebServer server(80);$ i d7 {! _; N- }
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";2 o' K" _3 ?: `" q/ c9 C% X* @ e
- ADC_MODE(ADC_VCC);3 ]; U( c- l1 y, N* T
- void setup() {
1 @% q& @, k4 Z5 L* ~# X- p- N - Serial.begin(115200);
9 x' R1 L8 \ O5 C- K7 o - Serial.print("\r\n\n");0 {: R* {* ?- W8 f9 ^
- pinMode(2,OUTPUT);
; T3 j; e* N5 l; K1 f: }. H) ?' Q - // WIFI! G3 s7 e" K9 J& ]$ y# v7 ~ I
- WiFi.mode(WIFI_STA);
1 N3 x% {: s: _5 P! f% z - WiFi.hostname("Sparkle");) b4 B& B, ~" A( }5 m+ [$ N
- WiFiMulti.addAP("wifi ssid", "wifi password");. V) [8 w8 B$ X/ ^
- int tryNum = 15;4 s" f4 V* ^4 z$ m3 e6 \; @
- Serial.print("Connect WiFi");; S+ b- d6 l1 P+ o4 w& v
- while (WiFiMulti.run() != WL_CONNECTED) {3 O7 j5 ]# f3 F x0 Y6 {8 P
- digitalWrite(2,0);; t3 b+ `+ @' O% y
- delay(200);! s9 q4 R% I8 |; C& k! d0 g
- digitalWrite(2,1);2 w" m, L* c7 D% g1 P8 a. o* V! X/ Q
- delay(300);1 c/ ]/ t& ]9 Y7 D/ l
- Serial.print(".");1 R/ {* j7 z' R) S
- tryNum--; E4 o) D( W/ q" q
- if (tryNum == 0) {
" K, S! _* Q2 O" F8 y - // 1min
: F) v9 Y7 H3 J* F - // ESP.deepSleep(60e6);3 u, @' z. m u6 O2 A
- ESP.deepSleep(0);7 ^! Z7 f1 H3 G6 Z. `: s
- }* X2 Q1 r' r9 p: u$ O. R7 i
- }
' T4 p& y9 |4 S, G - Serial.print("\r\n");
; j2 a; f; Y8 O5 l/ {5 ` - digitalWrite(2,1);$ v2 ?$ G4 s3 t, O4 m
- Serial.print("IP address : ");
8 p8 C' p+ u5 y - Serial.println(WiFi.localIP());" p+ |- ?, m/ d4 T' m+ U7 ?
- server.on("/", HTTP_GET, [](){
! M, a0 [% G! N6 t# ~ - server.sendHeader("Connection", "close");
' x1 r' s5 J; K8 r H - server.send(200, "text/html", serverIndex);- H L; E$ r' |; d! Y
- });' j, W# a9 }% w
- server.on("/update", HTTP_POST, [](){5 |4 X3 Q2 d1 t3 Y0 ?* M' S
- server.sendHeader("Connection", "close");4 Q7 N ^: _/ H+ G1 _/ Y
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");" V ^, K" N* @! [; R- p# I
- ESP.restart();" j* o x% K4 m6 x: |. K
- },[](){5 r+ k: p8 s/ N/ ^
- HTTPUpload& upload = server.upload();% @; I' j; S) w5 o3 }* W
- if(upload.status == UPLOAD_FILE_START){
8 o/ o: s3 u6 ?2 T1 t - Serial.setDebugOutput(true);; h/ E* n; P: ~7 k
- Serial.printf("Update: %s\n", upload.filename.c_str());) I0 t p+ Q% t
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;5 w8 y8 ?# w1 ~
- if(!Update.begin(maxSketchSpace)){ [( r* s5 q1 Y: G6 F# ^" H' E
- Update.printError(Serial);
, \- h; o* O4 T. S - }
( `/ E1 |! t1 I6 u1 `$ a - } else if(upload.status == UPLOAD_FILE_WRITE){
" ^7 X6 `% T" r4 W) [# B - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){. n( T6 K2 m' m5 J' ?3 {
- Update.printError(Serial);
+ u8 o) n6 }$ i2 m - }/ T# K$ ?: c7 k& W5 S, ]8 Y) f
- } else if(upload.status == UPLOAD_FILE_END){ I# P; W( h6 n5 A- W3 k3 d" I- y {
- if(Update.end(true)){
/ x( y; p8 Z, L; q3 x - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);) ^; A0 S* S9 [, e
- } else {
5 l% r) k( p1 E( M) | - Update.printError(Serial);
& U f# f3 w4 W - }
# m" U- b' H: E7 r - Serial.setDebugOutput(false); H z9 _7 {$ j# f3 f
- }
" j/ K) K- d$ r+ h - yield();
+ t1 I* Z/ Y2 ~" R7 `# j - });. n2 S8 M; K8 z6 n( j! U
- 9 F3 M W" T- j; _
- digitalWrite(2,0);
. Z( ?% h1 w/ T; w( \ - mainAction();0 o% ?: n7 u/ L
- if (digitalRead(0)){- s0 Y; t/ Y" Z, a) h4 W" H
- ESP.deepSleep(0);
5 E2 b# L. \- U2 I7 e - } else {
4 D" h& A3 E5 p! U - server.begin();
9 ]& y: L6 r( t0 J" U d; A# t - }
+ B- f8 W' z4 ~, a4 r+ S) J - }- K/ F' J. b" E( O, A1 X
- void loop() {! c- n% N( p* \( B9 b- }9 x6 A
- server.handleClient();5 }' f6 f5 d$ q4 u- V- x
- delay(1);* U# Z9 ]+ p' ?5 E4 A7 h% M
- }6 a: Y M" u$ F' S* X
- String doGet(String url){7 G: ?8 d6 k) t' p7 A Q- M) L5 d1 _
- if ((WiFiMulti.run() == WL_CONNECTED)) {0 @" O6 m0 ~( J7 m M5 y q9 _
- HTTPClient http;
0 k% u# n1 K2 Q% h+ L - Serial.println("[HTTP] begin...");' G" n: J9 G5 u- X1 l# @
- if (url.startsWith("https")) {1 }: k/ B% q$ |6 c% @5 j
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");6 M+ _' J: E: E# c* U
- } else {
/ M7 H0 c Y9 R2 ?2 l - http.begin(url);
* j% K9 n: b' ^1 u% c0 v7 t8 E - }
! q; H1 ^ I3 O) R& Q1 v1 D - Serial.println("[HTTP] GET...");
* b6 A2 c# M. M0 V$ l0 {; L5 Q- [ - int httpCode = http.GET();
3 e- U" ?9 X* ~( P* A' m - if (httpCode > 0) {
3 e, T. s3 k( U2 D0 i7 a - Serial.printf("[HTTP] code: %d\n", httpCode);
6 s- ]) P) I$ h# k" W2 X - if (httpCode == HTTP_CODE_OK) {0 X" S$ ~+ D$ `2 e! F6 s
- String payload = http.getString();) b+ V: C5 ~, e
- Serial.println(payload);1 ^ N1 q: ~) t+ Z* A: V" b$ ^
- Serial.print("\r\n");
4 Y9 ^2 s) k3 \% S$ s7 w% V - return payload;: Y' h$ f7 Y/ c. C
- }
( m7 O# W- J3 O% R - } else {2 G/ E# h7 O, M
- Serial.printf("[HTTP] GET... failed, error: %s\n",6 X- t# n; c, {; V, h* K; p
- http.errorToString(httpCode).c_str());2 H* U6 o3 Y3 H
- }
! h% C! a2 m& w3 n8 y6 _ - http.end();
, w5 x: i$ H, | Q5 d) q( T; h9 a - return "";! G7 v: n* Z. J
- }
, S, i( x& I& ? - }
! g& z' R" Z) e; I5 Z5 n - void mainAction() {0 E6 [- Z. L1 d( k# }: y
- // 发送请求
, {8 Y( `& H3 v7 E - doGet("http://google.cn");' B6 [+ }; ]5 \ }* a' Y
- }, m2 C6 i& d- U _ `& L
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