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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)2 _+ `! y: u! Q7 @- u/ O1 F" X
- #include <ESP8266HTTPClient.h>6 o3 c' X; k, I& ]7 R
- #include <ESP8266WiFi.h>
3 W0 Z! O/ ]% t8 V3 u) @# A - #include <ESP8266WiFiMulti.h>
/ S: v" Y$ X8 O! J - #include <ESP8266WebServer.h>
) }/ F: T! R3 b2 i6 o8 R - #include <arduino.h># |- u6 [6 u5 ]5 Q( y/ `$ [
- ESP8266WiFiMulti WiFiMulti;5 }5 V3 _+ o M# b( K# H
- ESP8266WebServer server(80);
8 v2 q$ M* s( r5 q - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";0 F9 N- s! v9 p
- ADC_MODE(ADC_VCC);
0 L, W- W9 X; L) \; R2 c( P2 j - void setup() {, e( c$ M' j0 M: P' Y! T
- Serial.begin(115200);+ j! l' k! }- ]+ J: E9 X
- Serial.print("\r\n\n");7 x4 P: I J- c }
- pinMode(2,OUTPUT);8 g) u m N1 P8 K. t# i
- // WIFI4 P% g# u8 s' o$ f: B0 D% L o+ O
- WiFi.mode(WIFI_STA);
9 Y* \" ^* K+ n - WiFi.hostname("Sparkle");3 G5 c# Z& ?( V) H; C/ a# ]* f. R* }" d
- WiFiMulti.addAP("wifi ssid", "wifi password");) O0 W) x0 S/ L& ~9 S+ m4 K
- int tryNum = 15;' L& Y6 U6 B! f- T; O+ {+ @7 g+ q/ [
- Serial.print("Connect WiFi");- x) Q; y) ]8 G" G* f1 }7 h8 i
- while (WiFiMulti.run() != WL_CONNECTED) {* J; U6 e1 l. K) m7 F4 i
- digitalWrite(2,0);1 R/ T1 V) x) u# a5 g# p$ T) B. J% r
- delay(200);
' E2 W: M7 P" z" x- T5 k1 z- ` - digitalWrite(2,1);" z0 k$ r; x- B
- delay(300);
4 m0 Z# S9 _! d. R( S! j. W9 L0 v - Serial.print(".");+ u& J3 H4 @) v* N
- tryNum--;' T2 e3 }" f: S6 g& l% C. K
- if (tryNum == 0) {
1 d, w# j& W' C! P" r - // 1min, x5 z) Y: m4 `3 g. M2 y
- // ESP.deepSleep(60e6);2 @9 v. `/ X9 I/ ~# F* l7 b
- ESP.deepSleep(0);: X# R6 `+ a4 T+ C4 T2 C
- }. z+ |; j8 S: Y# e: E9 m+ ^
- }3 T( L+ W W( M* k- M6 a
- Serial.print("\r\n");
# Y4 i$ p# x. y5 x+ N; C: ~ - digitalWrite(2,1);
% n+ y, N {2 Q: z1 J' v+ f - Serial.print("IP address : ");; U7 I% @3 P- L7 v# ]0 ~& c% g
- Serial.println(WiFi.localIP());
( D; C* |! ^6 c) S: V8 T - server.on("/", HTTP_GET, [](){
. ~( R' E% ]! s4 w# m - server.sendHeader("Connection", "close");
+ N+ c% D5 I4 a# K F - server.send(200, "text/html", serverIndex);5 c1 ]) ]' K) T7 M8 F
- });) F& Y9 H" V, c- Q! W, ^
- server.on("/update", HTTP_POST, [](){
" X1 \; r4 C% d- t! y8 l - server.sendHeader("Connection", "close");
P5 |% d: A+ b+ C - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");3 u: Y4 Q" u" E: _- L7 \3 T
- ESP.restart();
$ H7 }. ~4 b7 A8 I) D) |# Y - },[](){
' h. i8 d2 F W9 I. U - HTTPUpload& upload = server.upload();5 z1 O' i/ \. l, d' q, D
- if(upload.status == UPLOAD_FILE_START){# D( ?1 E2 c5 G% E
- Serial.setDebugOutput(true);
2 x: {+ P1 v1 e% O& |$ X - Serial.printf("Update: %s\n", upload.filename.c_str());' \1 j. `7 Z. B1 k
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
5 J* F% ]! L1 c+ i, O% t) w - if(!Update.begin(maxSketchSpace)){% d! G, M. J( @" S. ^5 @
- Update.printError(Serial);" }3 A$ A8 n4 |9 U- I
- }
% b- e) b% ]$ |6 V( f) C* r - } else if(upload.status == UPLOAD_FILE_WRITE){' s0 M4 J8 B3 n E' w- d8 j
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){8 i1 S. Y! X2 ]' a
- Update.printError(Serial);0 a2 L( Q, O+ ~" O4 h! V, x8 D
- }' j4 C: N" B, a
- } else if(upload.status == UPLOAD_FILE_END){( H7 n( C4 o. \' D2 B" q! ]; H( P
- if(Update.end(true)){
: [8 B, a& K! z - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
2 Q' |' M' E% _) J - } else {/ `/ l" H w z' N9 H
- Update.printError(Serial);8 t2 o$ s9 V) g# v- L- c
- }
" J! y4 _ i% r; z& E( D - Serial.setDebugOutput(false);
6 W8 s, f; j, Y - }
6 n# y4 u% n1 @8 H0 ? l - yield();: ~) s" w+ H( q' N; k! R
- });8 Z+ k I* I; e/ O
-
1 I$ O# [# G& Q5 n4 F: \: @& { - digitalWrite(2,0);! [0 @1 V# _. T5 @
- mainAction();2 G) Z* S. P& e# q) c& {: m8 j1 F
- if (digitalRead(0)){" V# `7 @' p6 b9 i, l! K9 U3 V
- ESP.deepSleep(0);) {) x0 W! y$ @6 z- u7 q' ]
- } else {6 P* r2 ?! U5 C5 x% U. l: z( V! O" k
- server.begin();
! u% S v2 b" @9 U - }3 p ^2 q6 {4 Z. X# K1 f
- }
9 D& {, f% W0 ~- A - void loop() { x- S& E/ d ?( N2 `; y+ g+ ~( a
- server.handleClient();( q1 U) {- A9 C' N; B7 a$ h& L, a0 K
- delay(1);
1 _- z( ?" j0 r y1 a Z% T - }, V& h2 e* n/ _8 Q0 z3 r' |$ c
- String doGet(String url){
! |$ O! r! a, ~ - if ((WiFiMulti.run() == WL_CONNECTED)) {
( \$ G. R/ T7 | - HTTPClient http;
D8 w8 d' t/ \- g2 [$ p% @( d - Serial.println("[HTTP] begin...");* `; G. `/ P) v& U- u$ s
- if (url.startsWith("https")) {
+ l6 T7 L) F1 N9 A3 z# }* ^4 E - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
7 ]" ^9 }- E% ]) ]# E8 f - } else {
5 \7 ~- p) O! }! ?- I1 x- ` - http.begin(url);2 V" h# t# ?/ h( e9 P4 S( I
- }) v) a+ N1 d" K5 y4 ~
- Serial.println("[HTTP] GET...");: m7 K* ?- d5 A0 `8 h
- int httpCode = http.GET();3 E" b& h* ?2 k' m+ X7 o6 r4 W. l% L. q
- if (httpCode > 0) {% I& y- U; {2 Q% o3 |6 R
- Serial.printf("[HTTP] code: %d\n", httpCode);3 v5 s8 c+ X7 i! g
- if (httpCode == HTTP_CODE_OK) {
8 q+ G+ _( T, q- F0 b2 Z0 @- m - String payload = http.getString();
% m. ]; q: t6 g$ C& D - Serial.println(payload);
; x; W" y" G7 m1 H9 \* V0 |$ J - Serial.print("\r\n");3 {" e( b3 c/ k+ ]# B7 }
- return payload;: W+ z4 |% ~* P' i$ m8 t$ O* T
- } b' ^! i8 [2 o, Y
- } else {6 A2 m$ X, ~1 P8 j
- Serial.printf("[HTTP] GET... failed, error: %s\n",/ t0 g* ^" x& ?. L+ ]
- http.errorToString(httpCode).c_str());: N- b! D9 r# g. F6 w X
- }6 X) ^! F9 D2 E( b
- http.end();
1 w' f3 K$ L* H7 g - return "";
, p+ e2 q& L. c R$ O+ ^6 S - }) c" w7 i; j/ S- ^3 \
- }
$ C, N( G) l; r# V2 I - void mainAction() {
) u: X$ h4 r9 ] - // 发送请求
1 z# }. `5 N; O, X& | - doGet("http://google.cn");1 Z( _7 j8 F4 F8 s5 D8 X8 C- H
- }
. }+ X, D3 T1 T% a! v) W* n
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