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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)
) e2 Z+ ^( f4 l: U4 F' y. C- #include <ESP8266HTTPClient.h>, S# U" f! C; f! c1 b/ h; D
- #include <ESP8266WiFi.h>) G0 g! R4 E3 o1 q' @8 q2 o
- #include <ESP8266WiFiMulti.h>
( n, \8 C ~4 Q4 i8 Q6 B - #include <ESP8266WebServer.h>' m) L% p# D* z, x0 o+ O
- #include <arduino.h>( q5 ~% Q$ V% N
- ESP8266WiFiMulti WiFiMulti;
: O8 [, v) X2 c - ESP8266WebServer server(80);7 P/ ?# ~. O& K* q% v3 X
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";3 g7 r( u2 d J
- ADC_MODE(ADC_VCC);( \3 t! Z' V' p4 X7 \
- void setup() {, k C8 l. B" v9 q4 n \! ?
- Serial.begin(115200);7 m/ L1 _ \8 e7 l3 z1 q+ y
- Serial.print("\r\n\n");
4 s( X- ^6 B# o* P' T - pinMode(2,OUTPUT);
) x9 w( V: i5 j: I! Y: _ - // WIFI
- Q) H; f h& y/ }; p8 D - WiFi.mode(WIFI_STA);6 |- [. p! F8 d5 Y+ G+ Q
- WiFi.hostname("Sparkle");; ?! }7 n" q4 d( S- l# R- w
- WiFiMulti.addAP("wifi ssid", "wifi password");
2 N" D6 ]( H! y& w' Y - int tryNum = 15;* O, i% W5 J- @9 B6 [$ f) S2 E
- Serial.print("Connect WiFi");! @; K* c' \$ N: k0 j
- while (WiFiMulti.run() != WL_CONNECTED) {
! p/ ]1 O/ D) ^( ?" F( G/ f( D0 ^ - digitalWrite(2,0);
4 j# @) l* i7 ?% @5 o - delay(200);
: h$ a9 x q( _ - digitalWrite(2,1);
4 T4 S" h/ [3 k3 z( F* r - delay(300);7 E: ]6 L; T& H; s6 G
- Serial.print(".");
4 }6 @, |6 u& L: f3 o - tryNum--;
! k0 @" G' Y X; D: ~8 n4 ` - if (tryNum == 0) {
2 d" I/ z& y( i( ^% Y+ t - // 1min
+ {, o& X( N1 c9 z8 n9 h - // ESP.deepSleep(60e6);
, Y0 t; S- {- k1 L# `8 E$ j# E( F" B - ESP.deepSleep(0);
4 u) u6 L: ^8 o2 E# M$ M/ A3 @. C - }
6 h& a- `/ E& t1 P - }
D2 h0 U, x" s - Serial.print("\r\n");
$ Q* b! o; K* c2 R9 x - digitalWrite(2,1);, ?7 l% S; ? U1 J* s/ L3 ^# o* u
- Serial.print("IP address : ");
* @! l+ p& u+ W2 P- {0 K# v - Serial.println(WiFi.localIP());5 ~' @% y+ n* e+ Z+ @, ]
- server.on("/", HTTP_GET, [](){) | H0 M' s r, V
- server.sendHeader("Connection", "close");
+ U3 }( ~6 e4 ~% C& [, o - server.send(200, "text/html", serverIndex);) {0 Z8 W7 o% f' A% t3 l3 ^1 l. l
- });
# V: d: d# v! Y1 a - server.on("/update", HTTP_POST, [](){1 F% X& Z1 q2 y4 S
- server.sendHeader("Connection", "close");' ]) c' T! x" L* T r* M8 c' ~7 ?
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
2 u( ?! n+ _* F8 U$ F/ q - ESP.restart();
/ N# s0 m5 D: |6 r - },[](){3 Z$ t; j+ G9 G7 `% L' L* J3 W
- HTTPUpload& upload = server.upload();
# w) c3 e6 B/ } - if(upload.status == UPLOAD_FILE_START){! ^9 E; g! t7 ]% W+ `, g
- Serial.setDebugOutput(true);3 H0 Z. y" X7 o
- Serial.printf("Update: %s\n", upload.filename.c_str());
2 N0 k' i- T9 U6 ^, q; r - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
: z- A9 \# i3 x2 E# |1 w6 } - if(!Update.begin(maxSketchSpace)){5 C( m8 e$ d7 l6 s E
- Update.printError(Serial);3 A: f/ Z Q6 C; X
- }
. A6 x& D, x; a - } else if(upload.status == UPLOAD_FILE_WRITE){9 X; f' n- y/ y. B" T: `
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){' A( W% b$ k& D4 b* C/ D
- Update.printError(Serial);
) H+ v! n: Q' d; d* w. H - }
) P6 E6 d' Y9 a( F7 s L) O& o - } else if(upload.status == UPLOAD_FILE_END){+ X" x/ X Q, W7 L6 r! M7 s
- if(Update.end(true)){$ N) Q% \' N7 g0 k2 b/ s3 m
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);1 @; V7 a* C2 I! Y+ z( e
- } else {
( Y. x Q5 ^1 ] - Update.printError(Serial);
0 w5 B C) y( C1 |. o; Z ~/ k - }
9 ^. g4 ]3 o" z3 ~: u - Serial.setDebugOutput(false);% E, B9 j) r# j, W# O
- }
, S! |- E- N$ ^: v+ @# \. g - yield();/ p+ j) J& R6 @$ y
- });
' W- Z3 }: e. G) X8 s7 ~ - % |% Z3 m3 k: t
- digitalWrite(2,0);* A: z; l5 j8 u2 ~1 Z1 Q
- mainAction();
' f2 s+ P" U: s, e - if (digitalRead(0)){
" p4 E0 q9 g* V5 W" { - ESP.deepSleep(0);
0 P2 k' r7 k9 h: ~, u - } else {# P9 ~# b% Q+ I( f
- server.begin();0 j }3 A' J" h% ^' i
- }
+ W+ L( |4 R" g+ P - }
- ?( `0 [: X/ k - void loop() {
1 M1 B, m: _- l. t* Z - server.handleClient();$ ?4 M/ N1 ^; N$ Y4 j) G
- delay(1);5 K; [ u& A8 [( r
- }
( F6 s$ F( N* K& a7 b. s' \ - String doGet(String url){. S$ r% O1 R" _/ [1 H3 Y# P8 Y
- if ((WiFiMulti.run() == WL_CONNECTED)) {: m, X, s& U) L- k- v. g- H
- HTTPClient http;
. M _$ u0 B' A' S% _+ Y- a& O' @ - Serial.println("[HTTP] begin...");
# X$ @- U/ P$ h - if (url.startsWith("https")) {
2 s9 n+ g: [2 c A+ a7 ] - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
* L$ z' r6 F! `) C% P- H - } else {
. N( R7 Q7 S7 r. B - http.begin(url);
( U+ Y4 D Y6 {, _$ V& c - }
: f9 I7 ?# x, D" b3 G7 U# Y - Serial.println("[HTTP] GET...");
7 {7 F. s0 s% U" W+ r6 ` - int httpCode = http.GET();
c# h ~& h+ f4 ?& y( n! g - if (httpCode > 0) {" s) h( k; u) j
- Serial.printf("[HTTP] code: %d\n", httpCode);0 \! Z' J! a. p8 u5 D7 }4 D) B8 F
- if (httpCode == HTTP_CODE_OK) {2 O6 |& d7 C/ j% y: B
- String payload = http.getString();& {& T) x* \5 D- X% |' F% Q
- Serial.println(payload);
+ c' k/ E$ c i, A% j, L - Serial.print("\r\n");
* ?4 ^! n4 t6 [; d* ?7 C* D# v# ~ - return payload;
$ b0 t: q3 q9 F% A7 y - }* H2 E; f8 Q! L# u8 G
- } else {+ o( s7 S) b6 Y% ~
- Serial.printf("[HTTP] GET... failed, error: %s\n",
8 I- d! I' h% R% x, O - http.errorToString(httpCode).c_str());/ x0 x. w+ e R1 y0 ]
- }5 [; t2 u" d( @2 J9 P7 E. Y, w
- http.end();( V! Y* `5 Z% [" |/ p( I
- return "";
3 a# T p$ u) |2 X: m - }- Q: N1 q- ^7 B, l) t( v- {
- }
+ Y- j% a/ l( p - void mainAction() {
' D6 d+ @( J/ x; p0 J. @- K3 t - // 发送请求& }% J! A5 U! T; U
- doGet("http://google.cn");
: ~7 |0 z1 I" n f" S4 s - }/ n" o( ~, u1 V* h; Z) j
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