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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)* Y6 ]/ z' \1 b9 A7 B8 l5 r
- #include <ESP8266HTTPClient.h>& \" T. s0 s" r7 I$ [: M4 i
- #include <ESP8266WiFi.h>
3 u- f2 F( R& O+ h# ]) x( Q - #include <ESP8266WiFiMulti.h>
& D7 M# H9 c1 M3 s- S$ j - #include <ESP8266WebServer.h>
' t: L) e( F0 | - #include <arduino.h> F4 b; W C3 D# F7 z/ i A. z& S" c8 p
- ESP8266WiFiMulti WiFiMulti;- D0 l2 Q( S/ b; G9 q$ R& L
- ESP8266WebServer server(80);: o" K% H' p/ C3 B
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
6 K) @8 h4 Q4 B0 \! @ - ADC_MODE(ADC_VCC);& t3 }0 r/ q v. B4 P, U
- void setup() {
1 E% H7 }& D- e6 S5 q2 p4 f" y! S - Serial.begin(115200);
7 N3 V6 h8 W# t! x0 W - Serial.print("\r\n\n");9 j, q4 G2 j0 I* k" i8 d) a" o* G
- pinMode(2,OUTPUT);
) g6 W/ d7 S/ W, u, S% w0 _: J - // WIFI
8 o, }) K* K7 c: _ - WiFi.mode(WIFI_STA);
3 o5 V, Y( X' V+ P& P - WiFi.hostname("Sparkle");
! ]% V1 a5 z7 r' T: Z' q - WiFiMulti.addAP("wifi ssid", "wifi password");
3 ~5 {- h& D. y6 m1 y% {" S; E - int tryNum = 15;
% g3 b* @; s' m4 o - Serial.print("Connect WiFi");# |) f) S4 o8 k6 ~+ G% L
- while (WiFiMulti.run() != WL_CONNECTED) {
& D& B: l2 J' e0 i4 d9 `2 O \ - digitalWrite(2,0);
1 q& Z* k4 v6 p, w# u5 g+ a T- G - delay(200);
6 R; N" J7 r5 d, A& I( B; P - digitalWrite(2,1);
' t$ o ?4 t7 ~ _, M% U* c0 R - delay(300);' {8 R' c; A' A' M7 V W
- Serial.print(".");2 e' M& \5 F0 ^7 n) o j% ]8 W
- tryNum--;
0 D! D6 ]) j* V - if (tryNum == 0) {& g1 H! F( | R5 b- r
- // 1min
6 ?+ [% S; G. C" G - // ESP.deepSleep(60e6);
\: i; H: U0 V2 d5 ~$ _ - ESP.deepSleep(0);
2 U- \% W p4 [; ^( ~" Y3 Y - }
' K" g/ m8 y- N p" b - }9 m6 K; k1 u' p q% i& |3 |
- Serial.print("\r\n");
! x2 @5 d% }' O: }; M - digitalWrite(2,1);1 ?( a" g m! B! a* ?) _/ A
- Serial.print("IP address : ");$ Z6 I; m3 x& N; r3 |) ^; V4 A) y- P
- Serial.println(WiFi.localIP());- W( R. ?' D6 j4 k7 o8 W
- server.on("/", HTTP_GET, [](){
( B% k4 E# O: @1 t5 v' O - server.sendHeader("Connection", "close");% A/ g0 |$ e: x5 I7 q
- server.send(200, "text/html", serverIndex);
# i% E" K- h0 p" J$ a T - });, ?! \3 h& b5 q/ s' M0 [) f5 J# a6 F
- server.on("/update", HTTP_POST, [](){- G. c1 i# k. F0 S
- server.sendHeader("Connection", "close");. V2 ?& i# k+ d9 e0 L7 c% ~ X
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
- ^9 o5 M9 ^- c - ESP.restart();
, C2 y, n9 M* ]4 H, t7 |+ p - },[](){9 s: K- r8 T- A) @$ E X) B
- HTTPUpload& upload = server.upload();6 B. L2 F* N% M
- if(upload.status == UPLOAD_FILE_START){( a7 u2 y i5 t0 A" ^4 O4 t P
- Serial.setDebugOutput(true);( Z( ^& ^* t/ T7 ?+ p& a8 d9 w
- Serial.printf("Update: %s\n", upload.filename.c_str());
& { G+ o8 _- d W* a6 B5 A - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
R% K1 r; W# b6 E( b' l! \ - if(!Update.begin(maxSketchSpace)){( p* V6 O( I" K5 H3 x; J
- Update.printError(Serial);
' ^% X0 _5 \8 k1 |2 W - } U! T. g/ p- q- w7 f; l; W, i
- } else if(upload.status == UPLOAD_FILE_WRITE){1 T( n7 q; N# m1 Q& ]9 z& D& h
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){9 m- W" q' j. y; U) k% e4 c
- Update.printError(Serial);
, O l/ O$ R( N - }- {. [! S4 O J/ F1 P9 K V
- } else if(upload.status == UPLOAD_FILE_END){ H2 Q0 Q$ g" U& }: h2 y- ~7 P
- if(Update.end(true)){% B* b1 n. { Q8 k: x" [8 |" N0 Q
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);) i* u* { O/ w% w) l+ ]$ o3 Q1 Y% {
- } else {
+ `+ e4 s. {8 h, O& H' R - Update.printError(Serial);0 O" h: F" F8 Q- s" F
- }
! G# |8 u: V$ H: b# M( x - Serial.setDebugOutput(false);$ E; A' y% L, P7 ~$ C2 {2 q) O2 c
- }
5 e. ~( a, b5 f0 Y+ ` - yield();
! w- @6 A; N8 ~" C - });/ \6 T5 j7 [' w
- 5 b n$ x* z& G3 d
- digitalWrite(2,0);. F; B; Q# I6 ?; m( `
- mainAction();( k6 u' C7 w5 W/ O( X
- if (digitalRead(0)){# g! k. I( l/ X# z+ ~1 a
- ESP.deepSleep(0);- X$ q2 Y8 S. h0 ~8 B6 `
- } else {2 R% I. X* m2 @! C. S, P
- server.begin();1 W* }' d: r1 [5 L! e. _& I( e
- }
$ D$ |0 [1 q3 ~ Y - }
4 U- Y, O" @5 C/ ` s - void loop() {3 {2 @/ {- J5 J( E* B( ~) l7 p
- server.handleClient();
0 H# v* j; Q2 h0 L( k- }9 d8 J( _0 c - delay(1);$ P. E2 g3 F) l! ^
- }
5 u" _* M+ b/ e3 E. l, d, c% L5 k - String doGet(String url){, e7 ]( ]2 i0 d7 I* _) P
- if ((WiFiMulti.run() == WL_CONNECTED)) {5 z. R$ `& Y0 A8 U! {/ @
- HTTPClient http;- V1 g! C! |% L9 p
- Serial.println("[HTTP] begin...");3 c; O, V6 F: D O7 \) W, h) E
- if (url.startsWith("https")) {. Q& I6 o8 R4 U* F5 [
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
' b! O8 r* k, @& E - } else {7 `3 i A! k" P; C
- http.begin(url);
8 L: }) R1 w; N5 L+ }. S - }
$ c( G3 p) T/ G. p# q - Serial.println("[HTTP] GET...");4 U$ d! H, O2 l( ]3 T: J0 M
- int httpCode = http.GET();0 j7 I4 P7 i; A$ I; R& O. t
- if (httpCode > 0) { y& {) C* l r0 l
- Serial.printf("[HTTP] code: %d\n", httpCode);2 ] y& f* p2 M$ d/ b
- if (httpCode == HTTP_CODE_OK) {
; V7 g% l4 [0 e0 E - String payload = http.getString();
- B1 J" n5 ~* K% P; y3 M# a! K( r - Serial.println(payload);: ^, H$ T: W1 E# \4 [
- Serial.print("\r\n");
3 c9 \& {6 w, v, X6 g! s - return payload;
& k0 U" t& u. f6 R - }
5 B5 R' ]5 S, [1 r! Y! m4 o - } else {
( C0 V& x- b9 ~. j - Serial.printf("[HTTP] GET... failed, error: %s\n",2 A" j" `1 {3 w( d
- http.errorToString(httpCode).c_str());
1 Z5 l. }) C5 w) J% b - }5 e, v% N8 K* y7 E/ f# Q$ C
- http.end();
: V6 S* Y% b! ^ - return "";
9 D) Y: A7 c6 \& B* w! p. ^ - }
9 N+ O: r4 r- |& H3 Z - }
+ r8 A1 L h O& e8 f4 v; a - void mainAction() {
* e& G$ C2 W7 e$ F; ]) Z0 j2 k9 V2 ] - // 发送请求
( e" N" E h; ^8 P" h' j2 Y - doGet("http://google.cn");* w& [# F* X% h* m+ G. A
- }; P t6 J( J. C1 P
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