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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)( M4 O' W, g6 k$ D+ y* A O
- #include <ESP8266HTTPClient.h># c. T7 X$ x: k2 l) i s
- #include <ESP8266WiFi.h>
6 h- x; o4 o3 q5 j* D - #include <ESP8266WiFiMulti.h>
\ M7 w8 k; \: ^/ Y2 n+ u$ q8 O - #include <ESP8266WebServer.h>/ J2 A% @: x3 y9 p: n$ o" ~( Y
- #include <arduino.h>
b- }% X& B: r- e7 Q, B. J3 k6 J - ESP8266WiFiMulti WiFiMulti;
: G# [7 f/ U2 |/ v1 @ - ESP8266WebServer server(80);
+ y8 t5 |6 o& P* S - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
, _$ O6 u9 ~; n/ j8 x$ [' |% L4 G - ADC_MODE(ADC_VCC);; e6 |# T2 P0 q* }* i
- void setup() {
) s" P1 M. E* d E: u' N2 C; c - Serial.begin(115200);" G' ^+ x. H' Q! }; _
- Serial.print("\r\n\n");0 P( q$ j) m* i& z0 t
- pinMode(2,OUTPUT);9 ~. H+ M8 [' p- V. b
- // WIFI n0 F& p X* h; m
- WiFi.mode(WIFI_STA);
9 Q' L( h4 [6 y: R6 b - WiFi.hostname("Sparkle");& \" F% j; h9 x0 g
- WiFiMulti.addAP("wifi ssid", "wifi password");
0 m) l6 p7 l( X% e2 d2 u7 p8 H2 l( R - int tryNum = 15;# l; S9 E7 D/ n! {1 I2 y
- Serial.print("Connect WiFi");1 j ]: E8 Y& ]! A; n
- while (WiFiMulti.run() != WL_CONNECTED) {
. y! u2 t1 o8 X, v& ]8 m! a - digitalWrite(2,0);+ V4 D: N% X0 F0 |1 M: s1 F
- delay(200);5 E9 F7 g; f) @3 r2 J2 F
- digitalWrite(2,1);, o- L7 w1 K( A. m* K) P3 h& i
- delay(300);
r8 O( F+ I0 F - Serial.print(".");$ \* y9 ~6 x; k5 p. c; @
- tryNum--;% W' ^, Z1 i7 y5 k: X1 c
- if (tryNum == 0) {
^- B: O& h a. b5 q - // 1min" x# t- i/ [8 @
- // ESP.deepSleep(60e6);9 @; f, f6 t7 c: i, y
- ESP.deepSleep(0);
+ m/ m* K6 v5 \- c0 d2 P2 W$ T3 H. x2 M8 y - }
& z; L0 |: x7 N% J3 S& k2 G2 f - }
- H; C! |6 S6 I, P7 _9 f - Serial.print("\r\n");' p: ^" ]7 r6 _, ~3 p2 S
- digitalWrite(2,1);
& i9 O' Q. M) R; ^! p! B - Serial.print("IP address : ");
( _9 ?2 f. d. f$ R+ p9 a- ] - Serial.println(WiFi.localIP());1 X( D" m9 d9 i& z8 H
- server.on("/", HTTP_GET, [](){
. C% [% Z4 B: n3 q6 z# P. e" u - server.sendHeader("Connection", "close");
* H6 ^# y6 i. c9 v - server.send(200, "text/html", serverIndex);: Q, w3 G+ C( a3 |; ]7 d2 B
- });, C9 J) a1 R% Q6 o
- server.on("/update", HTTP_POST, [](){9 `+ _8 U/ j# j1 w
- server.sendHeader("Connection", "close");3 N- r3 b7 P6 t( D
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
0 \5 e7 k( h, ]$ y- A - ESP.restart();
" D% Q5 R* X3 y+ G - },[](){* [' j# I+ ?. |9 F# i0 V( P8 Q4 d
- HTTPUpload& upload = server.upload();1 |, q/ j, w/ B% c; A4 K
- if(upload.status == UPLOAD_FILE_START){
' M: Q+ u) J6 e& B9 d - Serial.setDebugOutput(true);
1 z* N% D0 ]# m- r% x0 f - Serial.printf("Update: %s\n", upload.filename.c_str());! X# y$ _$ b! x j( b9 @
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
5 L3 I5 ~2 {1 x5 Q - if(!Update.begin(maxSketchSpace)){/ K% Q+ W% X1 i( g" y* q3 E
- Update.printError(Serial);
; t. h0 _, V6 q6 l$ E - }3 b& V$ W# h2 h
- } else if(upload.status == UPLOAD_FILE_WRITE){$ f2 O4 g1 M$ d6 N( n5 N9 z
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
; x: P# U; n0 v9 G/ w6 J& _ - Update.printError(Serial);1 w0 L. \$ K) w+ K! t
- }
2 y7 D4 i# }2 G* }( ?, L X' ` - } else if(upload.status == UPLOAD_FILE_END){
& p' ?& I" u8 L - if(Update.end(true)){
# h# f/ y, {% b* _' `& K* u$ h/ T - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
+ e, [3 w |; T3 u( q - } else {
& E( }. v7 f1 i1 T - Update.printError(Serial);* O2 C( r; E' \, N! ~# l! Z Z
- }7 k7 P- c- M6 ^3 a
- Serial.setDebugOutput(false);6 @& R; E2 h" l2 L
- }
; y7 z9 D2 K* d2 ` - yield();0 ^+ T1 \9 s- @$ w: B- F( g9 {
- });
9 K/ c' l* `2 f -
1 ~" P+ f# R8 N5 l. I - digitalWrite(2,0);! I" j2 }' H+ X" `3 ?
- mainAction();
+ F# l! B P. i9 y5 b% P8 D - if (digitalRead(0)){6 A8 X$ U) D$ H+ d
- ESP.deepSleep(0);% F3 \. K; p+ @+ T/ j `0 R
- } else {: [1 M# f _6 O7 U4 ^. P3 p+ i
- server.begin();* A0 I+ b$ S0 @* b
- }! k Y2 o. B8 j% G6 o3 e8 ?
- }1 a3 t) A5 Y# R
- void loop() {2 j8 B8 X1 r2 `1 P( w* a
- server.handleClient();, i6 f* G B& T L& x) o% m1 h2 W X
- delay(1);; _' c9 y, p$ `: Z' x( D' G0 ~6 I
- }
- z* N+ ?% T! h) V4 i - String doGet(String url){4 t$ s- Y- w* e4 l; q
- if ((WiFiMulti.run() == WL_CONNECTED)) {
8 g* z+ {3 J, F - HTTPClient http;' ` n% l/ y/ o* G' q% O4 V
- Serial.println("[HTTP] begin...");
+ w$ G7 b) S8 L* W( r2 M$ i - if (url.startsWith("https")) {
# |( P: Q% A, q9 r9 e) l# q - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
3 W0 `- Q1 h( p3 k - } else {% B1 S( Z; { ? S0 S6 B0 k0 r
- http.begin(url);
T# u" Y& A: d t# r6 @ - }: N+ t. U9 A) s3 J0 i9 ~
- Serial.println("[HTTP] GET...");
% y `5 p' |0 r. H& v1 k - int httpCode = http.GET(); D7 ^: o% ]( ?
- if (httpCode > 0) {) y0 L- u2 w {. |/ v2 H' e3 N5 H1 j
- Serial.printf("[HTTP] code: %d\n", httpCode);7 {1 ~( L4 n5 y' p' T$ u5 I
- if (httpCode == HTTP_CODE_OK) {+ i6 D5 v1 Y( S1 s+ ]+ n, e/ c" Q0 r
- String payload = http.getString();
$ G/ W. C8 G% j& G' m - Serial.println(payload);
4 C% v3 b# F8 Z/ ^5 ]# x4 u - Serial.print("\r\n");
( N( e, ^, W3 y+ V9 @4 C - return payload;
+ @. ]5 m! t3 v, m2 a* Y1 e - }9 v" I I% O$ Z
- } else {' w: p) {8 C5 k& U3 D5 X9 i3 w
- Serial.printf("[HTTP] GET... failed, error: %s\n",
: Z( t. o1 G# D) S' g - http.errorToString(httpCode).c_str());
- ]" ~- @& a+ [# t' v4 ?& i - }
j+ |3 S5 V8 p! P1 h - http.end();0 o# Q* \) l, x' j4 ?
- return "";4 {9 e& O" n: T5 R. c! ]0 J# u' \
- }
# I7 F& p7 ^" e4 R. } - }- c9 n4 h/ a2 J# t1 @
- void mainAction() {
1 V7 s% E3 w; }; A* a3 w - // 发送请求/ W* A( V7 D" f- ~
- doGet("http://google.cn");
w% m ?; O# n( J9 V8 F; Q0 n - }" _$ r4 @8 R! |* `& B
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