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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)
! H7 _. E$ e4 E2 g/ @/ l# a- #include <ESP8266HTTPClient.h>4 I+ l! m' \ j% q; n* g/ l Z$ Q4 k' ]: |
- #include <ESP8266WiFi.h>$ a. ~( P9 o& T6 m& a4 Z
- #include <ESP8266WiFiMulti.h>
0 q$ ~9 y9 S, h1 H+ s - #include <ESP8266WebServer.h>3 n2 k9 v2 h, \
- #include <arduino.h>( ^9 L7 ^, h% S. Y/ _0 T6 `* J
- ESP8266WiFiMulti WiFiMulti;$ D: t5 D& d; w
- ESP8266WebServer server(80);
% e, |/ G d3 z' m - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
* `# [6 z) o5 A: Y - ADC_MODE(ADC_VCC);
* P* ]( T* ?4 G3 `7 C! ] - void setup() {# ~+ i( S( n8 u: |$ H, j% R A# q
- Serial.begin(115200);
; }- x4 H, J" I/ s- s9 u - Serial.print("\r\n\n");9 k q- R( W. G5 g3 b8 ` q8 S
- pinMode(2,OUTPUT);
: K+ }5 {* `7 z+ m - // WIFI) O( E& F; |' n
- WiFi.mode(WIFI_STA);
7 ?) |: ?! \' F @! B6 H3 L: Q - WiFi.hostname("Sparkle");
- R8 O5 n7 F; O7 {. G0 E - WiFiMulti.addAP("wifi ssid", "wifi password");
9 J3 g$ F( l, `- [- d2 a7 K! K - int tryNum = 15;: |* w/ k7 x0 a1 F
- Serial.print("Connect WiFi");
) f/ I# P% F2 p- ]" |* A - while (WiFiMulti.run() != WL_CONNECTED) {
8 e5 H, b. f+ i$ b# X - digitalWrite(2,0);0 e" j# z( b7 ?3 W3 n0 P
- delay(200);
% E) }5 R2 E) X" b1 Z2 } - digitalWrite(2,1);$ d; |7 S5 _5 z* V
- delay(300);# \/ v: J9 E6 r* m+ W' T
- Serial.print(".");
0 o- k, u6 Q& X- Y - tryNum--;
# r j: t+ w% ?* I - if (tryNum == 0) {
- O) b8 h9 c7 A1 \ - // 1min5 R- \4 v& b4 U5 A
- // ESP.deepSleep(60e6);9 r, D5 `1 [7 D9 ]- A) r
- ESP.deepSleep(0);
- i! z2 L: F$ k8 Q$ g - }. [% P- y3 |% m/ S ]4 L& ?
- }) D: x4 ^- J/ D& E) a
- Serial.print("\r\n");
# H4 [0 T0 B, |! S* z5 ~- I4 S - digitalWrite(2,1);6 l6 W6 n" e% t; G
- Serial.print("IP address : ");, v9 m& p9 j" G+ l2 a4 u5 N9 K1 I# Q
- Serial.println(WiFi.localIP());
5 w! p; J* O" n" T+ H, M2 w+ _ - server.on("/", HTTP_GET, [](){+ v V; L8 |: W( g1 a8 o2 H
- server.sendHeader("Connection", "close");: F/ l; c5 B' s( D" ]
- server.send(200, "text/html", serverIndex);
1 m8 q) Y( D: _- N1 r - });8 B, P; l3 j" t5 Q* j; q$ c
- server.on("/update", HTTP_POST, [](){2 O+ q+ v5 X- F2 C9 e
- server.sendHeader("Connection", "close");
/ S: B$ Q' E- R5 t- q3 }+ N - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");" P4 X! }+ ~( ^2 k2 F% ~0 r
- ESP.restart();4 D& z' _+ t" M; h) E& X% v) n
- },[](){: _3 L4 D. X/ J4 `/ P
- HTTPUpload& upload = server.upload();! x/ _+ ?* o1 M& ^0 `
- if(upload.status == UPLOAD_FILE_START){
% @1 M8 Y1 q) I5 b9 e } - Serial.setDebugOutput(true);0 }4 q. H3 q8 S5 B) x' ]+ Y
- Serial.printf("Update: %s\n", upload.filename.c_str());
. c8 f$ q4 u$ ^9 h$ L& H/ N4 X - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;0 u" U; W6 y Q8 i
- if(!Update.begin(maxSketchSpace)){
+ L, x/ X# u( g/ ~* z ~ - Update.printError(Serial);
: D7 B$ I8 o; O1 r4 r - }7 C7 @8 i) V& {) b& {" c
- } else if(upload.status == UPLOAD_FILE_WRITE){) E& b5 j8 f. B: g5 |; l9 V
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){- t9 T' X0 g0 x' g2 O9 f4 _
- Update.printError(Serial);" n% }# n7 T' d5 q
- }. @1 p; R0 D& {( d) m* r0 j( q* z4 L
- } else if(upload.status == UPLOAD_FILE_END){
; Z1 U8 _/ l% ]: b6 ] - if(Update.end(true)){3 x+ ]. j/ ?0 B2 p n' Q W
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);; m1 V- i7 a2 A, j+ M' r3 {
- } else {1 i* x! {! Q- V4 T: `% h
- Update.printError(Serial);
, y5 W0 w1 j& i: \ - }: m4 `# }. n- J, R! p
- Serial.setDebugOutput(false);3 V8 l# H d: V9 L2 C
- }
* y8 N. v; G& p$ g) }- [" T4 D, \ - yield();
7 X4 N; j7 y4 N s3 t7 I* I" e - });' |4 C B1 h$ x5 x$ E
- : C6 T2 q8 z! Y) O x+ ~$ t
- digitalWrite(2,0);
% K: j1 R B1 `9 P9 @ - mainAction();
0 r' `8 B( j3 y$ f; i3 _1 w - if (digitalRead(0)){4 ~ F" s* M/ ~5 q, U: G
- ESP.deepSleep(0);7 H, ~% R$ x- C
- } else {
y9 E( L# f0 D3 ]/ S* g9 j, a% b - server.begin();! K/ k% g7 _, _# S! R
- }
. v* H& Z$ c" s5 A3 `( | - }! j% C/ F2 O* Q6 l7 h, u! r
- void loop() {
) E7 N- K' L' ?* A4 M9 Z% @- { - server.handleClient();" U5 n9 U6 b3 h* ~! A+ o- p) {$ o
- delay(1);: Y, @6 T4 r3 `9 ?0 _+ W* M
- }
& r; q! v1 i) H$ Z0 Z$ o# ^ - String doGet(String url){
. {7 m0 {; k% ~: z* u - if ((WiFiMulti.run() == WL_CONNECTED)) {- C, Q* `* o+ X$ v
- HTTPClient http;4 r! [* C: C3 L1 h2 v3 b% l
- Serial.println("[HTTP] begin...");
5 U% t3 G1 f9 ] - if (url.startsWith("https")) {
' X1 H9 o6 J" { - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
7 |. \" O" c4 U2 O - } else {
1 |. z* U4 U' z' c - http.begin(url);
9 @- ?- W: `1 c* {( R) e" ?( l - }) z$ O9 n! n1 Y
- Serial.println("[HTTP] GET...");$ F' d Y: {/ w0 o$ S+ p8 ~
- int httpCode = http.GET();
$ V. i0 T1 c6 t5 h9 S - if (httpCode > 0) {
8 H2 r2 o2 t. }) C - Serial.printf("[HTTP] code: %d\n", httpCode);
% b" y9 e3 T* y - if (httpCode == HTTP_CODE_OK) {
5 ?& B" ~) H8 e# w - String payload = http.getString();! w3 D8 B& @0 b8 L1 _! w
- Serial.println(payload);
/ v2 e( k& Q4 ^; B) d G" A( g - Serial.print("\r\n");! V% E7 G3 Q( n* b0 w5 J$ L
- return payload;
$ E }$ e, E$ ]9 D2 {7 x$ q - } ~( _. |" J. O' j/ l7 J- r# B
- } else {5 m2 v# o5 J6 @ X2 t3 n
- Serial.printf("[HTTP] GET... failed, error: %s\n",
8 j7 @/ [1 O+ p# _ _# b1 x3 ]8 L - http.errorToString(httpCode).c_str());
0 m, Y3 D/ r) n9 u C - }2 _# d5 g( g! ^) F( {8 ~
- http.end();8 B7 v1 T$ t1 k& s# ]1 I
- return "";7 r5 n4 c& ~8 u2 M9 t: F; {% _
- }
' a$ R( E' Y' z2 o - }) k3 U. j+ L0 C1 { t6 R
- void mainAction() {- h$ E3 y* w# i6 X' C
- // 发送请求
% U |( A: ^9 w$ a) D a - doGet("http://google.cn");$ H3 S3 o' ]- x( y& l2 Y2 \7 t Q) L
- }
* o% ` T8 l9 x! @+ q
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