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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), Q# r8 e8 s8 Y' H a9 v+ [; W0 e
- #include <ESP8266HTTPClient.h>0 R) o6 [/ L! j( B$ H6 u7 h1 t# O$ [
- #include <ESP8266WiFi.h>% }7 `3 z$ }* z6 f1 X+ C8 P: u: r
- #include <ESP8266WiFiMulti.h>9 s" }4 k" {+ |# ?
- #include <ESP8266WebServer.h>
% k: \) R- u" V/ K$ z - #include <arduino.h>
, v3 K" A7 |! b) d! M - ESP8266WiFiMulti WiFiMulti;
% z# O8 I( [) y; w8 j7 ` - ESP8266WebServer server(80);( E/ n5 \9 G5 L
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";% @& }& h' ~# ]( _4 Q T4 c
- ADC_MODE(ADC_VCC);7 p" Q* |% g; W! N; b" ~6 J
- void setup() {+ C, E: U# N* j( C1 ~( z1 {
- Serial.begin(115200);: I4 g$ l1 }% E
- Serial.print("\r\n\n");. t# Z6 I& n: s. m
- pinMode(2,OUTPUT);
. H+ ?. ]! [0 ?3 u& r* R% `# Z - // WIFI. c. g8 K. v( n6 T6 v1 m
- WiFi.mode(WIFI_STA);
" u$ `" x. Z$ l% ?; e" Q6 ?3 Q - WiFi.hostname("Sparkle");
4 A4 f2 I, V0 O; J - WiFiMulti.addAP("wifi ssid", "wifi password");
y3 r( E' c7 t; F9 n* ~ - int tryNum = 15;8 r* O7 v; R7 B) {/ g
- Serial.print("Connect WiFi");
+ v3 F$ D" @1 k% K) w9 R. L! b - while (WiFiMulti.run() != WL_CONNECTED) {
) W2 h A# |+ r: H* z6 K& B - digitalWrite(2,0);8 E" I0 C, G% Y9 I, m {- T7 v& l
- delay(200);# J+ v E; d+ E6 R
- digitalWrite(2,1);
: j$ v/ `1 A* \; [- t; R$ }+ k - delay(300);/ x3 k* [( E4 a3 j/ O$ |3 C1 M
- Serial.print(".");3 T4 a% `+ h4 o
- tryNum--;
( K# V5 ~% N, [3 S) x! m - if (tryNum == 0) {9 W" ?0 Z- e0 a; s z
- // 1min3 ^: r* q% N2 f$ H/ g S D
- // ESP.deepSleep(60e6);0 j/ n( W- p3 x- c {
- ESP.deepSleep(0);; K2 [0 E( R2 x+ R1 H. p" ^0 b! }
- }: l& t" d# q7 d; `) e# P8 W
- }
1 L" D# Z4 C: i8 y8 i - Serial.print("\r\n");
; Y4 X6 a2 k# W0 p0 }) i - digitalWrite(2,1);
) z( j* ?8 m- L3 e% D8 }. p - Serial.print("IP address : ");9 D3 F1 {$ C1 ?! C2 L! q
- Serial.println(WiFi.localIP());' K6 A6 n4 O0 ?5 H1 h
- server.on("/", HTTP_GET, [](){# I/ Z' L7 |$ g6 h5 V$ A
- server.sendHeader("Connection", "close");
7 N w$ J& y8 ~$ a$ t - server.send(200, "text/html", serverIndex);
8 u7 Z9 I, z. ~6 X - });
; |% ^1 ~4 a0 J$ t - server.on("/update", HTTP_POST, [](){
& Q) Z( Z& z! Z: ] - server.sendHeader("Connection", "close");
, U) T. I& K) {! ?4 d - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
: m( Y& T/ a) ? - ESP.restart();
+ P5 n2 C8 x* q+ U& }! ? - },[](){7 _: l( E/ A2 w& V% Z
- HTTPUpload& upload = server.upload(); C d# Y& t+ u% ?
- if(upload.status == UPLOAD_FILE_START){
! m$ u+ I- U+ g5 o$ M - Serial.setDebugOutput(true);
* X) z8 c# u' x( D2 `' d+ H$ v - Serial.printf("Update: %s\n", upload.filename.c_str());5 \0 A6 W7 o6 V p1 l( _+ t
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000; X/ G7 h$ r, ?! r' ~! F+ H
- if(!Update.begin(maxSketchSpace)){
. \/ \9 v: Z& z - Update.printError(Serial);
9 K! H' U$ l* S' J" M - }
8 @2 @( U9 } O3 U- r* o- x( A - } else if(upload.status == UPLOAD_FILE_WRITE){" A1 J3 I* \- m- v+ z' ]
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){* Y1 g- O7 m7 ]# k! X# ?* G
- Update.printError(Serial);! |6 F5 M( s/ B8 n% p( J
- }5 k" h1 Z, F9 s' Q4 l
- } else if(upload.status == UPLOAD_FILE_END){% {* z2 P9 B" { ~2 c
- if(Update.end(true)){
; h8 Y! N" H3 l z9 _, R# q - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);/ X. I+ N* { }3 Y
- } else {' P8 R+ g( z I4 T
- Update.printError(Serial);# Q q, O, z" J- t
- }& J7 f: e8 P$ m; F e: L$ B! a
- Serial.setDebugOutput(false);9 L. D( _$ [9 q& L
- }
) @9 N) N. ]" y/ \" D - yield();. A0 R9 O) J* `3 u
- });# ~; f3 q5 g6 k) Y6 ?
- ! N+ y0 X/ b* W+ \& |
- digitalWrite(2,0);. h+ X+ S+ g7 q1 J
- mainAction();* B' X, q; J/ U( P) Z) g( W
- if (digitalRead(0)){
* h! ?* }% M) \3 @ k, [' J5 n i - ESP.deepSleep(0);5 j0 x3 H0 _- i* m: \
- } else {
# l6 m4 }$ o) i# C - server.begin();
7 O+ u9 y. R2 K6 h- z7 I- O$ z8 e - }
/ [4 d/ T6 W8 y - }: H" b" V2 j& R. K% C6 ^ t" N5 y
- void loop() {/ G( f# Y( |# T8 v- }
- server.handleClient();
3 B# M" ]' r" s( j7 I" X) r - delay(1);/ S; H+ e# i/ }
- }
4 ~( W) h2 l' A0 L) o( l$ F+ o - String doGet(String url){' n. p# X* Q" l2 z, K) r) y- E6 s# D
- if ((WiFiMulti.run() == WL_CONNECTED)) {' V V$ M5 k$ D7 }. c
- HTTPClient http;+ L& o, [- T) t0 b; O/ B
- Serial.println("[HTTP] begin...");
9 u6 }: N2 W- @ - if (url.startsWith("https")) {
3 H0 w+ m) L; \5 _. [; u - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");5 A% x3 g4 z5 A6 @/ z8 v+ ]
- } else {/ o- ]6 p( x/ z# }6 U9 `/ ~# Z: A; {
- http.begin(url);
9 K) x. w2 b, ?3 t: h4 z" k8 Y - }3 I P. d9 Z; {! W& q
- Serial.println("[HTTP] GET...");3 Z1 `- I! i' v7 _; y
- int httpCode = http.GET();
& S& A' z7 O$ { w" h6 O' E/ c - if (httpCode > 0) {! J b3 |- K: \8 Q
- Serial.printf("[HTTP] code: %d\n", httpCode);
u/ w& i) I* I E$ h3 E0 ^ - if (httpCode == HTTP_CODE_OK) {' [ s7 F, H# j- e
- String payload = http.getString();# n* `$ M7 M+ ?2 J3 B5 v
- Serial.println(payload);$ X7 }! j, p% L0 M) ~* ^% P
- Serial.print("\r\n");
* G x% C* [2 N/ E1 F - return payload;
1 {" i/ d5 R% F6 t F - }: G3 `3 T. O, Y5 M" j0 ]
- } else {- z* N( Z) l- a
- Serial.printf("[HTTP] GET... failed, error: %s\n",
1 w3 R3 Q, Q4 M6 i# o7 g" Z0 ~4 N - http.errorToString(httpCode).c_str());
! O) D0 m) P! D& Z/ @! P( ? - }
. V5 T% P8 k, D4 Z( s& O" e - http.end();
. |- V" B S/ ~9 j - return "";
- z$ h" g4 v4 V( V/ ?3 P - }& \" N3 Q, r% Z& M( t, T* d; p- C
- }1 i/ F9 L* `% D% x+ ^' x3 M4 X7 C0 h
- void mainAction() {
) N0 r9 { M$ y5 c2 ` - // 发送请求
2 V) w5 I0 C! f. a) H! J - doGet("http://google.cn");: N, R; ?- W( s& b' w C6 d
- }" J6 e5 ^0 H4 k. a4 c
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