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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)$ p7 c0 g. i( X6 O& V9 s- g
- #include <ESP8266HTTPClient.h>
( Y* J4 |5 \( m5 z - #include <ESP8266WiFi.h>
% }/ w) h" a" D2 o5 e; O% l! I - #include <ESP8266WiFiMulti.h>
+ @/ v9 y# V: w. J) n - #include <ESP8266WebServer.h>
9 X7 B& G$ [7 `5 k: \8 c - #include <arduino.h>! l4 V* p$ X4 c+ u
- ESP8266WiFiMulti WiFiMulti;0 ?! n1 \7 |# f1 H
- ESP8266WebServer server(80);
7 c' w; s* D! O' @. E) f, ^ - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>"; D( W9 {- c1 B$ N& F B( _
- ADC_MODE(ADC_VCC);+ a8 [) w0 E) \0 H
- void setup() {/ O4 U' r: ^4 ^4 y
- Serial.begin(115200);
# Y) h( u% I1 l) [$ m/ c0 ` - Serial.print("\r\n\n");/ o5 A% Z9 V& Y" ?1 l* }1 t# Q
- pinMode(2,OUTPUT);) u9 O: x! k1 ?) H3 R- c2 @
- // WIFI% G' g4 D7 M- i, e& v& _ f4 B* h0 |
- WiFi.mode(WIFI_STA);
6 Q0 ]- P* ~; w3 H - WiFi.hostname("Sparkle");
% J" s8 {: ?! T - WiFiMulti.addAP("wifi ssid", "wifi password");
9 _ l1 g6 Y) }; {2 {, S7 o - int tryNum = 15;
- O# A1 j* v, i2 e - Serial.print("Connect WiFi");
) s" Y# {9 B- N# r; r - while (WiFiMulti.run() != WL_CONNECTED) {
( A" t; E& C; H8 @+ m. s$ W - digitalWrite(2,0);, M1 W: l/ ]' j) V2 n
- delay(200);; g; J9 U" v0 g, R! u
- digitalWrite(2,1);
' b' J9 t% L+ C. @# A - delay(300);
' D& L8 O# Y0 O) n - Serial.print(".");
4 c+ j# c' P' {' q/ i+ ^ - tryNum--;4 F3 K) [ P. E' z3 ]) t+ |
- if (tryNum == 0) {! y7 s7 F. J2 M% A1 d
- // 1min Z! B+ ^+ i& z* |+ ]
- // ESP.deepSleep(60e6);9 x' l3 |0 f! j6 Y i
- ESP.deepSleep(0);
6 T" ~' H4 l9 u4 D3 P7 [ - }1 |, |( g' o ~8 C+ R2 T H+ b h
- }
( W# e( l- C8 t: r# v - Serial.print("\r\n");
e& v1 l5 b! ~: X) K6 v; y - digitalWrite(2,1);% n. h9 f+ c! }, b$ \ S& c
- Serial.print("IP address : ");1 ~% z9 M+ d0 K
- Serial.println(WiFi.localIP());6 |! s) ?- L _7 k3 @
- server.on("/", HTTP_GET, [](){
# {+ \4 ?# C; d9 c( C" a: O0 n; c4 N - server.sendHeader("Connection", "close");& C! @9 B1 s3 Q9 k7 C2 {7 V% Z' g
- server.send(200, "text/html", serverIndex);( n' V& x( E6 |* f1 C1 \
- });
# i! W5 o! c4 I9 e- n) G - server.on("/update", HTTP_POST, [](){' E) a: c- @4 P& `
- server.sendHeader("Connection", "close");/ t2 k9 M1 g( a) Y c
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
4 c% L$ ?3 I+ |" q( Z& U/ K - ESP.restart();! X3 A* s7 P, I. G2 Y
- },[](){
+ | q) e% K9 l' o+ N1 v! U" F, C - HTTPUpload& upload = server.upload();
. D$ i2 T7 L2 b0 H1 w+ o$ H* H - if(upload.status == UPLOAD_FILE_START){- x( c* \( b- p* q: [. \ }
- Serial.setDebugOutput(true);
1 Y& k$ R& F2 m1 A" H - Serial.printf("Update: %s\n", upload.filename.c_str());, F4 f9 u/ D! S7 T
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;# D* ^! S9 N* g9 S" q
- if(!Update.begin(maxSketchSpace)){/ } s' m1 S$ F4 [1 N
- Update.printError(Serial);3 I8 V2 T6 u2 x4 p& E
- }
6 M' O" S5 A; L' a5 ` - } else if(upload.status == UPLOAD_FILE_WRITE){
% x5 H; \# o0 |( H2 `5 F( ] - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
; o! s* b+ o! q - Update.printError(Serial);% N* d+ v7 Q F4 N+ E' n2 O. S
- }6 B- ^( _$ H3 P6 P5 t: t
- } else if(upload.status == UPLOAD_FILE_END){- r% E- N8 I1 N. q9 L( T$ m/ F6 O
- if(Update.end(true)){1 G4 R( z8 n _# b9 I l. y7 j8 B
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
& x* { K& G) s - } else {7 N' `! ^6 u1 o" R2 h! F
- Update.printError(Serial);/ Z1 ~. x3 g: e7 w) E0 t' Y- H% z# m
- }
5 i; x0 U( g. m# ]& T' c5 w - Serial.setDebugOutput(false);" G( d& g6 ~/ |
- }5 N! y& x" `4 o j3 C& F. A. \
- yield();8 w" V2 x8 E( F4 L7 q0 j$ R
- });
$ W+ r+ U- }8 |$ s -
8 o/ w( k. v% K7 }" ]) h - digitalWrite(2,0);$ |& ]2 x4 Q/ t5 u1 l+ A9 O
- mainAction();
7 |- Q, S" ]2 e4 l8 R( H8 J - if (digitalRead(0)){
: C; V' R$ ?' `* B - ESP.deepSleep(0);' O3 r5 ~- v W9 q$ c
- } else {
; m: } l9 T2 \0 T - server.begin();
; c1 Z, O8 N6 Q6 M8 ]. }) G - }
! r$ ^1 P4 }, N( p B$ q+ u2 K - }9 H* w5 S$ ?; l ?6 J
- void loop() {1 P( ]/ g0 r! T* m% E! ], [5 C
- server.handleClient();' z8 z) I1 M3 {, q6 R* q. c; `, b
- delay(1);
6 G8 D/ t! f) l& f - }7 m9 C+ b2 ~: O* J% C- {
- String doGet(String url){8 C1 G# i C4 ]0 }1 t* U+ L# D
- if ((WiFiMulti.run() == WL_CONNECTED)) {
6 [9 B+ P6 z# e$ i - HTTPClient http;. X' F4 D$ m; U3 J R( }* b
- Serial.println("[HTTP] begin...");
7 @/ Q) Z7 W. i) q - if (url.startsWith("https")) {
# [6 R* P: b" B7 U0 E1 K) ~ - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");* K0 H- U( U$ {) ]% `8 g
- } else {: \/ S# }* G4 v5 \3 a$ L; A$ P0 l
- http.begin(url);7 n" s8 Y2 H, N0 Q1 O
- }
; b, S7 ?4 w8 v! l4 G. f! ? - Serial.println("[HTTP] GET...");
+ n6 }. p" E) p( i, n - int httpCode = http.GET();
6 w: e8 K$ x6 ? - if (httpCode > 0) {
% ~" {, n9 J2 k4 Q/ p2 D - Serial.printf("[HTTP] code: %d\n", httpCode);$ J5 ~' f" b) r# j
- if (httpCode == HTTP_CODE_OK) {$ R# A6 M8 O7 p9 S( J8 O1 b
- String payload = http.getString();
3 H8 k% [. `: p) L - Serial.println(payload); s( {3 [! I6 i* T; B' L% b; R6 |
- Serial.print("\r\n");
( N, `, z* l& q. H - return payload;
, A5 Y3 F8 j, d; @7 r; M - }
. f% D) [4 y2 q$ y( p9 }' f - } else {
/ ]; Q5 \4 M) O/ J9 W( e - Serial.printf("[HTTP] GET... failed, error: %s\n",+ a1 Z6 s$ X, t1 T( b F7 z% {
- http.errorToString(httpCode).c_str());+ ^$ B8 V4 n! d+ V- y9 v. d2 R
- }: M7 L5 J5 X+ J: o: S5 G$ }
- http.end();
2 Y. H2 Z) v( ~6 S' z# o* | - return "";! W# o F/ l" `9 ^( {' S5 t
- }# k! _7 T" y# w( f1 a
- }
1 g6 V4 F# r& t; n - void mainAction() {
0 \9 D6 {$ k9 P1 T' r K - // 发送请求, d4 A; _9 N/ q% J
- doGet("http://google.cn");
7 z8 n9 C# Y, \0 j3 g7 J& r- l - }: V/ G! c' G- T
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