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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)8 r. H& I) V) {. ^* }+ L# }, `* f0 Q
- #include <ESP8266HTTPClient.h>
8 K$ d- Z2 u& C) L( C; ] - #include <ESP8266WiFi.h>! n* D' Z. M. ^ M* \/ a$ H
- #include <ESP8266WiFiMulti.h>
0 s1 c# ^7 m3 T1 o" o1 a9 ^ - #include <ESP8266WebServer.h>9 M# o1 B0 B, ~. b6 K
- #include <arduino.h>
. N* _0 r9 h" k - ESP8266WiFiMulti WiFiMulti;
& z9 H" V; v6 \ - ESP8266WebServer server(80);$ k4 r) V& w3 x7 b- V
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
* p" i3 H: |5 T% k% o( ^- { - ADC_MODE(ADC_VCC);
# h( S* W0 K1 Y - void setup() {4 [" d' v4 A. B9 C' O3 d
- Serial.begin(115200);
2 M) L4 i6 g8 s - Serial.print("\r\n\n");, J+ V X" _6 Y# }' U) |8 h, D
- pinMode(2,OUTPUT);% K* d0 E* E1 n! R7 T z7 Z
- // WIFI( W* z- i6 A% J: }) C
- WiFi.mode(WIFI_STA);! X$ [. E# f) _$ U
- WiFi.hostname("Sparkle");9 e# _3 y: L3 r- Z
- WiFiMulti.addAP("wifi ssid", "wifi password");
/ m" u- `4 [) H# ~% {! n% e2 | - int tryNum = 15;
/ h0 m" N4 Y( O: p+ m5 q* z( o2 h& S - Serial.print("Connect WiFi");
, m3 v6 D9 W" L( ?) f$ ^" S - while (WiFiMulti.run() != WL_CONNECTED) {
6 u& @8 s, _" k s0 ? - digitalWrite(2,0);
, b& N( O0 X% G5 i9 h" j - delay(200);' I9 I( S4 X0 e1 _0 e, O0 J/ U6 z
- digitalWrite(2,1);
. A/ y; ]! X, n* S3 c1 | - delay(300);3 W8 U' B) H& h$ u' o+ p& |# ^) h: L
- Serial.print(".");. j; k: A7 R* H2 l; R4 r1 C' C6 w
- tryNum--;
& M7 M7 }2 G; H$ v/ v9 I - if (tryNum == 0) {5 N/ W* q8 Z5 E% z3 z# |
- // 1min
0 Q5 f3 E, V* N* G) H8 m - // ESP.deepSleep(60e6);0 n6 `" p8 K' q# P4 A
- ESP.deepSleep(0);4 }$ T) R" j6 S+ s& K
- }. z1 s" Y R# J7 N6 S
- }
1 r; G: S: \& Z - Serial.print("\r\n");" E; I! p; _1 r0 W$ _
- digitalWrite(2,1);
; P( x. P, {8 o( [4 Y - Serial.print("IP address : ");
Y2 d$ f+ u% @ Q! x - Serial.println(WiFi.localIP());5 d& p0 \1 @: e
- server.on("/", HTTP_GET, [](){5 s. c& r. n4 I" r
- server.sendHeader("Connection", "close");/ X* Z" }4 N- ~* V0 ]3 L: T6 v
- server.send(200, "text/html", serverIndex);. }) _7 m/ f% c" ?0 x
- });
8 t0 p' R* ~+ O) G+ ` - server.on("/update", HTTP_POST, [](){
5 h9 x0 l# l# Y x0 k! C - server.sendHeader("Connection", "close");
+ p I$ M5 w8 s+ M7 y - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
9 p; ^/ m! _8 a- w0 s1 U1 u - ESP.restart();
M: s! U; C3 p' }% b1 g1 M - },[](){
: x/ a+ Y3 A. z5 U/ t - HTTPUpload& upload = server.upload();* o5 A" I2 y1 ?! N c* ?% @
- if(upload.status == UPLOAD_FILE_START){6 i7 t8 g4 E0 z5 |# S
- Serial.setDebugOutput(true);: o3 k7 n) T4 ^4 j
- Serial.printf("Update: %s\n", upload.filename.c_str());
6 z3 z. h" t3 A& o - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
% b6 c' t5 }1 W$ p; D, _2 x5 j - if(!Update.begin(maxSketchSpace)){
- c7 ] K5 n* n E( L: C( h" z - Update.printError(Serial);
0 S0 \# \! q$ S+ \1 k; T' { - }% y1 l' \. b2 W y1 B
- } else if(upload.status == UPLOAD_FILE_WRITE){# e( A5 I( l6 @% ?
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
7 {9 K4 D" e. G) Z! K - Update.printError(Serial);
# h J8 L5 ~5 @7 _ - }
Z) y1 G% k6 ?, d5 d - } else if(upload.status == UPLOAD_FILE_END){8 W2 F. j. d( u- Q# t4 M
- if(Update.end(true)){& y3 h% G+ b6 L6 I' q' ^1 Z
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
/ c% d+ O( E4 }+ i4 d9 }& g7 R) n - } else {
: _4 Q8 }5 O: z u7 _# P- k - Update.printError(Serial);
7 t4 q) y8 {$ [5 j$ x1 Q& M( m - }, A% M' b+ j0 z+ _. N+ z0 \
- Serial.setDebugOutput(false);
0 u! F6 ~, X: Z! c. | - }
E8 R, b$ k+ r0 `7 Q; m. F( m# M# g - yield();
. C9 H) [* r" ?7 ^" M% I - });. n9 q- E' Y, e8 Z* U) o, e
-
5 N6 s, J& M5 x( d. T! X6 {$ F - digitalWrite(2,0);
( {4 O/ [0 Q) n, L4 m - mainAction();
* D9 l6 x. E( F, W Z- [0 ` - if (digitalRead(0)){( \% d# d3 j3 y3 J, j l$ v# ~' w) j6 h
- ESP.deepSleep(0);
# q9 o: ?6 Z! P6 L C# {8 B - } else {5 \. ], [8 [3 S# I+ h" `
- server.begin();
4 H' F: J3 n$ d# j5 V) c) D - }6 i( |8 t0 @8 h
- }
5 Y6 Z3 l( {% [; \' V8 h; \ - void loop() {% v# i1 U# z9 v( y
- server.handleClient();
% S* f# ]* V/ L7 `. G% b7 M - delay(1);& B! C( ^! e6 P/ Z- B: R
- }
d! {/ E$ }/ b0 K; o4 q* Y - String doGet(String url){6 I0 Q5 t3 q; n( y/ m2 X4 G. F
- if ((WiFiMulti.run() == WL_CONNECTED)) {
- f" o$ y9 ?2 m: R! |1 ]$ E - HTTPClient http;4 X9 P; C+ J9 `7 m. n1 Q& i6 z- V1 Y
- Serial.println("[HTTP] begin...");
! n" f: m0 s) \/ W, A+ \& ~+ l! _7 L - if (url.startsWith("https")) {* l# X1 e# v3 y" }0 l
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");8 [& I' ]* h4 ^% F1 ]* @2 @
- } else {$ B! i$ O5 q- K4 B
- http.begin(url);
" ?% M3 m" n+ Q8 ? - }
* j& p- F! g) c n; F( d) H/ N* g - Serial.println("[HTTP] GET...");
) J. V0 |9 M( w+ Z - int httpCode = http.GET();
7 U. Z# M; B' ^( \ - if (httpCode > 0) {6 Q- F$ J& g {; U$ y1 f- P+ M
- Serial.printf("[HTTP] code: %d\n", httpCode);% t/ L& I! l0 ?. |
- if (httpCode == HTTP_CODE_OK) {
2 O/ ~7 f% K% R& g5 d - String payload = http.getString();
" h& g# h+ u. \# b - Serial.println(payload);; z; k+ _) c: B6 C
- Serial.print("\r\n");
% a& |5 K1 a$ c2 X0 V) g6 @, ~ - return payload;0 H4 [) z$ g! O
- }
; b& E2 i1 a! c0 |# w5 V5 F - } else {
7 y% o! {3 z* [+ A$ ~ - Serial.printf("[HTTP] GET... failed, error: %s\n",
% L$ Q1 g6 [* X4 |4 q' f - http.errorToString(httpCode).c_str());
4 z6 ?5 w; |9 v) N+ l4 G - }- E5 [4 }4 F0 Q9 V
- http.end();
+ C: |( }2 ~& n1 o9 _ - return "";4 E1 f* Y" }% G; n
- }
) O# A9 O' @0 m4 @ - }: T3 H( F9 H0 M$ x1 b3 p
- void mainAction() {
6 Z" u8 D6 l: c$ N& n+ { - // 发送请求# R' Z( ] C8 k
- doGet("http://google.cn");7 X, h' S4 @1 b$ u8 U5 b* K T# @; u
- }6 Z( L! U7 Z1 H* x& h9 b, f
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