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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)
0 {6 Y/ r7 \! A4 H- #include <ESP8266HTTPClient.h># m8 r# B" h1 M/ K) g" O
- #include <ESP8266WiFi.h>
1 n3 H1 r; |, E - #include <ESP8266WiFiMulti.h>
3 J2 e1 X T$ L - #include <ESP8266WebServer.h>
# f% C. |, k( J% h - #include <arduino.h>% u' i* `1 U) X6 D$ k! e) L
- ESP8266WiFiMulti WiFiMulti;
6 A5 G* C3 K" W. a; a: V1 g - ESP8266WebServer server(80);
, R* ^, K; m; X, |4 I6 t/ ? - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";! B. T7 W; f) w4 I
- ADC_MODE(ADC_VCC);0 u6 @) w p' v4 t+ e, N7 a1 T) T1 P
- void setup() {% f; [# B$ T! v( M% [
- Serial.begin(115200);
/ q; d2 h/ h3 n, F; C& Q" ]( b - Serial.print("\r\n\n");
% w1 w, `, j- w3 J' E7 k$ @ - pinMode(2,OUTPUT);# p. r) Y* F6 v' k/ g$ L
- // WIFI- }0 `* w4 s4 w
- WiFi.mode(WIFI_STA);- V+ g# f- m; p F N- n
- WiFi.hostname("Sparkle");
/ E5 Y( g! e% R5 C3 z - WiFiMulti.addAP("wifi ssid", "wifi password");. @4 h& @ v+ _" E, y
- int tryNum = 15;( j/ F z, Z* M g4 e
- Serial.print("Connect WiFi");) M8 N w: D. h4 X
- while (WiFiMulti.run() != WL_CONNECTED) {
5 u8 S. u) ?9 Y4 [ - digitalWrite(2,0);
# {, g3 _8 y2 [ - delay(200);
0 |6 q2 C1 ?3 B a - digitalWrite(2,1);
0 P9 ?! L; U' c" H7 t, x - delay(300);( \" c! y4 F. J( d# f
- Serial.print(".");
1 z" b% `* R: \6 H5 K9 S - tryNum--;
3 M* _) b0 c2 \3 S% [+ O- R - if (tryNum == 0) {% [+ O. B. C4 f6 G8 @) `" o
- // 1min! |0 t4 W" Q. B7 ~3 Q
- // ESP.deepSleep(60e6);* L5 X0 ~9 z3 Z0 Y8 H @5 ^% W
- ESP.deepSleep(0);" l# }( D7 d, K$ D1 c7 h! ?
- }; f: @: |, i3 Z
- }& z! y: [6 l2 X& l' `4 Z
- Serial.print("\r\n");
S* w, a; C8 ^& B - digitalWrite(2,1);1 J `- |. b T w- z- P
- Serial.print("IP address : ");
8 h8 y3 r4 q7 H' Z% k& ] - Serial.println(WiFi.localIP());
/ E7 i% J( f! g' a' P* K& {( l& F" K; x - server.on("/", HTTP_GET, [](){
( X# b; L! D) m8 p G- r3 _% m - server.sendHeader("Connection", "close");0 P8 V! u/ v6 ~! J* ~
- server.send(200, "text/html", serverIndex);
4 @5 |( X# G! h, k - });
3 p3 n q- Y" f8 o/ r9 F - server.on("/update", HTTP_POST, [](){1 v6 Y% j$ ?6 y
- server.sendHeader("Connection", "close");& c r4 o- {* _( `" {
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
$ h% l. C5 d6 f - ESP.restart();
4 Q# [2 W8 q$ H* Q/ r. P( ~ - },[](){9 f9 U5 T7 n. M
- HTTPUpload& upload = server.upload();
' r! }5 G3 i: w - if(upload.status == UPLOAD_FILE_START){4 X9 F8 p% r, V2 K
- Serial.setDebugOutput(true);8 ~5 ]) K% d2 ]
- Serial.printf("Update: %s\n", upload.filename.c_str());
, K8 J7 P/ d4 T+ p - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
1 ~( k: F9 C" m- l - if(!Update.begin(maxSketchSpace)){
5 g, l; M+ Z2 x" K H: F - Update.printError(Serial);4 m5 u' C' n0 p. B1 l8 J: v
- }
( [5 `6 l3 V- u2 ~ B - } else if(upload.status == UPLOAD_FILE_WRITE){4 U' J) T. a- K( G0 G
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){' T/ V o0 g' R* `- i( w
- Update.printError(Serial);
8 Z! L3 T) s0 t- N - }3 S& ]6 S2 O* `' E
- } else if(upload.status == UPLOAD_FILE_END){
- W) K9 J% ^* z - if(Update.end(true)){
) l0 h4 h2 ~, F$ S3 j: D v8 s# s - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);3 B5 } b4 h1 b# }
- } else {
+ z7 ~: z: h1 c( R8 _& V1 Y - Update.printError(Serial);
" B1 L4 n; b1 `. G+ F& ] - }5 w# K3 |% W% c1 U
- Serial.setDebugOutput(false);
" h8 D! _9 T* T2 ?+ f! c0 I' ` - }
! q4 ^" T- I. r* }9 m - yield();3 G0 o; f7 e, B0 g2 F6 n
- });5 n3 e' `! m- s
- 1 X! \0 |7 n2 P
- digitalWrite(2,0);
: a) z) D r" P. o) E - mainAction();
& N3 E( G4 ~8 o1 H$ l9 p+ Z+ ? - if (digitalRead(0)){ D6 A- M# k& k4 J4 ~8 h
- ESP.deepSleep(0); Z- @- n. V; N$ d4 c
- } else {& |0 i6 r" N" O$ d1 s. o
- server.begin();# q+ B' X- _% m, \3 n% _+ d, K
- }% }/ J. n4 Z5 ]' Z
- }% T# ]" |5 Z7 k! p7 A! A+ \, V x* O
- void loop() {' V" B! h6 q$ |/ A8 s5 J) [9 _6 t
- server.handleClient();1 X0 r0 i8 x! i% p
- delay(1);: j( _) ^% G; p) f2 J
- }
( H" Z; X* o) I' |( A - String doGet(String url){6 s* k& @1 ~& N ?; @8 g
- if ((WiFiMulti.run() == WL_CONNECTED)) {: ?" `" Z% S( ?9 R, i
- HTTPClient http;
: t" J7 |# C' @ - Serial.println("[HTTP] begin...");
& V' K5 `! ]% ~ - if (url.startsWith("https")) {
/ u9 d' S' q7 v - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");9 Y. z; V- h, R. i+ p; ^
- } else {) ?5 K, q. d/ s8 ~
- http.begin(url);
# y# S% X+ z; o7 C# w' ] - }
- E! K' E. Q: Z5 B - Serial.println("[HTTP] GET...");3 c- _1 Q( k+ m* I
- int httpCode = http.GET();/ l. i+ L) Y* ^' y. w k
- if (httpCode > 0) {! l( B. D: Z3 q, A/ |2 J( a
- Serial.printf("[HTTP] code: %d\n", httpCode);8 k3 J0 Y0 r: ^: `
- if (httpCode == HTTP_CODE_OK) {! |# ^4 T' x$ W+ A* k
- String payload = http.getString();
, z# D1 @: ]- l- K! }* u - Serial.println(payload);- {; Y) C6 `. z- V& o, d X
- Serial.print("\r\n");
# ]5 l- ]8 o$ [ - return payload;
, e2 n, v7 w' `( ]1 l( Z P: S1 @ - }8 c7 [' q" I' J% l. O2 o# P
- } else {4 ?. d8 A9 s; e) W+ y
- Serial.printf("[HTTP] GET... failed, error: %s\n",
& V9 L7 ^; L2 t; R' {4 c" U - http.errorToString(httpCode).c_str());
6 N& i$ Q1 d) p9 z R - }6 q9 N; `! `2 p3 o1 Y# x
- http.end(); l% W0 P+ I, c- C( K: z% C
- return "";+ L$ e" s9 @" Z$ x4 }2 T/ @
- }
, a. r! ] I) w, B$ a - }
: F* y: m, e t" l% b8 C - void mainAction() {
" Q2 ?) V5 j8 L c) ]4 s; F2 } - // 发送请求0 j6 n3 c5 L3 K: T- s* t" f! B
- doGet("http://google.cn");
& a3 c p9 l! J9 \' v2 S - }
8 c. y! k; X M$ g
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