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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 j6 u& Z. j, v$ y. e3 \- #include <ESP8266HTTPClient.h>
7 E6 Q/ r/ {( w9 o9 W+ W - #include <ESP8266WiFi.h>6 r9 p. j! i4 r& B5 G
- #include <ESP8266WiFiMulti.h>' {) y! x8 n* M% v
- #include <ESP8266WebServer.h>
0 {- j2 s; A$ E" x - #include <arduino.h># ]. E4 q, H2 Y, \; V
- ESP8266WiFiMulti WiFiMulti;
4 ^0 {' r- m6 s2 @. T( E) _ - ESP8266WebServer server(80);4 x) A* @. i( 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>";+ h! C" o: i' h, w( w4 x# B9 c
- ADC_MODE(ADC_VCC);
9 h9 O% v$ m# L, G+ m - void setup() {! l4 }7 `* `# Y$ n
- Serial.begin(115200);8 A" T. p2 C( H( x" j; ~
- Serial.print("\r\n\n");
7 s( |! o) C, n( f9 {: v( `2 y# G) v - pinMode(2,OUTPUT);
( ?& D4 E# T2 m - // WIFI
' R5 q, _$ @- N9 { - WiFi.mode(WIFI_STA);
$ B- N5 e) C& Y - WiFi.hostname("Sparkle");
L4 o$ ^, X& H2 S3 Z - WiFiMulti.addAP("wifi ssid", "wifi password");. h4 \/ t5 g$ S0 e: Q+ }* }
- int tryNum = 15;
. ~$ y* U: S- _7 \" R7 o4 }' k& @ - Serial.print("Connect WiFi");
/ f6 Q( O3 {0 ~1 g2 n - while (WiFiMulti.run() != WL_CONNECTED) {' o" e) O) W" X9 e
- digitalWrite(2,0);, p/ {( q1 O! }# p
- delay(200);; |- z3 ~4 B- g' J6 y# F
- digitalWrite(2,1);# x: E" r' T* {& F2 m
- delay(300);
0 g* b8 I' {" Z+ }: a! h - Serial.print(".");
6 q# z0 X' n. [' V/ f6 T+ M - tryNum--;' S& B, X' c1 b
- if (tryNum == 0) {% ~2 H7 B, ?% R; W
- // 1min
7 D' a! Z: ]) S) B# s1 s2 b - // ESP.deepSleep(60e6);
( \9 R& U7 b+ o1 p - ESP.deepSleep(0);
( x' o9 b% v5 K' a - }
- q. M2 V/ u2 j! j( B - }+ A. a( o* Z) r3 F$ K2 ?
- Serial.print("\r\n");
: g7 {( p4 Q: M( W% \ - digitalWrite(2,1);
8 x1 e' M, H9 G* W, i - Serial.print("IP address : ");
* Y0 i W7 [' W8 N - Serial.println(WiFi.localIP());2 _ q! C2 }- s0 E9 p/ L- Z. d9 I
- server.on("/", HTTP_GET, [](){- ^! ^8 V9 W' _
- server.sendHeader("Connection", "close");
+ L, h, w- n4 g |$ g$ t+ ~6 g5 I - server.send(200, "text/html", serverIndex);; h, `: {' A! {# p. J
- });" K. e% l3 B3 U# K
- server.on("/update", HTTP_POST, [](){; e/ a' V3 [' X
- server.sendHeader("Connection", "close");, F$ ?/ A; }) w
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");. T8 z. p& f; D0 O* n( t3 f/ F. M
- ESP.restart();' j& Y" Z& f( |- G; v1 b+ M% n7 S
- },[](){
" l8 B$ [8 [( b - HTTPUpload& upload = server.upload();
9 ?5 ?; b$ A5 x7 S) { - if(upload.status == UPLOAD_FILE_START){
& k, x4 C9 z# U J, g" ] - Serial.setDebugOutput(true);4 h; f' q( W4 u3 _
- Serial.printf("Update: %s\n", upload.filename.c_str());
) h! A4 C4 \( M! P# z- d5 t- k5 k# v4 B - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
* a' M$ v7 q: |( b# ^: j - if(!Update.begin(maxSketchSpace)){
7 w9 h2 O! z K7 G/ p- D - Update.printError(Serial);
, B* T. U: M V) i7 m; ~ - }- \$ c; B2 U; o* Q5 Y% n
- } else if(upload.status == UPLOAD_FILE_WRITE){
. F- f( j1 ~2 Y. n3 A: @8 } - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
8 ~/ J1 M6 L. |; A - Update.printError(Serial); |0 l! A) m8 H( t# p. z
- }
" c4 ?# q1 }$ f - } else if(upload.status == UPLOAD_FILE_END){# e6 ~/ P, ^3 p* a2 r- e7 _1 \/ L% M
- if(Update.end(true)){
4 A/ B: Y( [; A; C - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
; R" {+ n. y4 ` - } else {" N% o- B6 q& T7 V; E
- Update.printError(Serial);: {* |$ c: t2 j% a/ T; k
- }
1 b/ i6 a3 P' p$ T: Y) R) [1 c( q - Serial.setDebugOutput(false);) q% u+ u% F) e4 I& J- p
- }
" ~2 B, Z: W+ W7 @ - yield();% h4 F5 k8 y8 z% H
- }); F) Z! M l; l }# ~, C1 r' }
-
3 ^8 _. [7 g8 N, f8 o( x - digitalWrite(2,0);
" B& C5 N2 r9 ]2 J - mainAction();
- J' F- ^& u5 R7 ]! Y* ?" K - if (digitalRead(0)){
1 s1 A, _3 o! r! H0 l6 g* \ - ESP.deepSleep(0);
8 d: q0 X# Z5 X - } else {
# g9 @9 K5 |: a" {6 {7 { - server.begin();8 m0 R/ f+ l8 L9 f
- }
( a# t& u% j6 m, e8 } - }
$ t$ F! E; L9 W) m% S$ O% q4 _3 o: ^ - void loop() { J0 W" @( ~+ }+ E/ W* j
- server.handleClient();1 g: S% E1 Z4 U+ K
- delay(1);
# n) P& r5 p: |) R0 t( ~! t - }
6 r" @* u+ I0 k6 b* k3 | - String doGet(String url){
( m5 t7 t1 j4 B- U8 F - if ((WiFiMulti.run() == WL_CONNECTED)) {
; j9 h; i: z: h - HTTPClient http;
" u( r4 ]$ Q8 e& T2 ~ - Serial.println("[HTTP] begin...");2 l8 R! r+ p6 T2 p- y0 v& _
- if (url.startsWith("https")) {
) y( t- D# y9 z7 y2 S% v. R, T - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");$ w w2 Z) S$ z8 H
- } else {( q' \" x) i \9 K
- http.begin(url);
6 ~( p0 S3 m/ u( b/ i' F. _. N0 e; ^ - }
% I' f! n/ Y4 x1 @ - Serial.println("[HTTP] GET...");
% _/ P: L; M- W6 U: [5 O/ t - int httpCode = http.GET();
! f: g% `3 Q* X; A0 ^ - if (httpCode > 0) {3 ~/ e& J1 ~) h0 P1 _; @
- Serial.printf("[HTTP] code: %d\n", httpCode);' K& \: f+ K% h
- if (httpCode == HTTP_CODE_OK) {
/ W) L' [. c4 W2 k - String payload = http.getString();
2 T/ A- W- \- [; V - Serial.println(payload);
, r, Q3 r/ x$ |& s' X2 L; N - Serial.print("\r\n");( R$ j; h) A" y& |; K( B
- return payload;
. p) L% l% \! F2 O - }
2 J. i$ t- l, t5 P( B2 z - } else {$ r4 E4 J! Z7 ]5 h- \/ }( }
- Serial.printf("[HTTP] GET... failed, error: %s\n",
, [ c5 N6 I" C/ ^! g& ~' i) M) c1 U1 e8 g - http.errorToString(httpCode).c_str());
. G b( W- J! X! `. q' C - }
1 r' K& v5 V& n( | - http.end();# ]& |6 c' |# f% G/ F) _6 T
- return "";" o. {$ Q6 M( G
- }; x; v0 z# z& t& `( Y: M
- }
* m9 z* D0 H/ y - void mainAction() {% A: R, o u4 F2 T3 @! G
- // 发送请求; G' [7 I! {; G. {, A2 t
- doGet("http://google.cn");
' I* h- P; m, q# p4 K/ t! s - }/ W2 \3 [% x/ \1 @" m5 O0 k$ B8 `
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