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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)
9 @" R5 ^0 A4 ^9 c- #include <ESP8266HTTPClient.h>! h1 ^$ R2 L2 x& Q) A% p
- #include <ESP8266WiFi.h>
$ l z& n0 J: A - #include <ESP8266WiFiMulti.h>
6 { A& N/ B, {, i9 q - #include <ESP8266WebServer.h>" [) i& ~/ M4 u7 K7 }; K( Q
- #include <arduino.h>3 E6 m: J1 J( D- Y' @# P
- ESP8266WiFiMulti WiFiMulti;1 h7 ~1 P& e# J1 T2 C( {! V/ i
- ESP8266WebServer server(80);; C! T9 X# M* @% {
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";( G5 _3 m C0 F. R. _( h* q
- ADC_MODE(ADC_VCC);6 l5 ]9 e! W. m1 ^# C
- void setup() {
' t: J. _6 y; _7 t9 ^/ j5 T \ - Serial.begin(115200);
4 M! j! p! d, N8 l% a4 _+ A9 e+ | - Serial.print("\r\n\n");
6 D f: ?. r( d' X - pinMode(2,OUTPUT);0 n, z" h' f1 e3 `; Y" K$ i
- // WIFI' Y% k7 x& T) F' t: u* B2 d( s
- WiFi.mode(WIFI_STA);
& U- G) O$ K# I: W$ q - WiFi.hostname("Sparkle");
" t, }( {& P) S# t5 Q+ A - WiFiMulti.addAP("wifi ssid", "wifi password");$ A; O) t* p" k4 U- ?. ~
- int tryNum = 15;
& r$ `. d# N0 J; @ - Serial.print("Connect WiFi"); u. g* T9 r: `* F0 ^
- while (WiFiMulti.run() != WL_CONNECTED) {
( d! l5 \- F6 S5 D - digitalWrite(2,0);. s4 W2 M( z' w8 `: J, b: q/ U
- delay(200);
9 t- B) \% K4 I& l: t2 c$ N - digitalWrite(2,1);$ u- u/ S# Y- r. q2 `2 G: M
- delay(300);! n: I9 @: v6 V0 t% @
- Serial.print(".");
. }6 K6 ?# T( \ - tryNum--;2 f4 E( F: l0 J1 B& M6 d
- if (tryNum == 0) {
; s8 T3 b( D, v" e, N! |* S - // 1min5 `& }, m4 F) U/ H1 m
- // ESP.deepSleep(60e6);+ W# i( z, z* M" p# ~: `$ f
- ESP.deepSleep(0);$ Y5 _6 B/ E: D0 B( ?3 M+ M7 E! P
- }3 Q W2 @ H0 k) O6 N/ d
- }( o3 ]3 [$ C. R6 n$ f0 g
- Serial.print("\r\n");
- h9 E9 b# [* n7 {, |3 H p - digitalWrite(2,1);2 a; q; Z* o _$ o" U& ~
- Serial.print("IP address : ");
7 n! @, U& R6 e - Serial.println(WiFi.localIP());' L/ ` s8 i i* X4 J E
- server.on("/", HTTP_GET, [](){/ U* Y. x A$ A# y: e6 N
- server.sendHeader("Connection", "close");2 c: U: o" t& _
- server.send(200, "text/html", serverIndex);7 R$ D( c" c& n- G6 d
- });5 p/ }( Q4 V; w- A: r J
- server.on("/update", HTTP_POST, [](){* |( x4 E( h$ c. v: B2 c+ s
- server.sendHeader("Connection", "close");
4 m) C5 _! ?8 c( o3 L - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
7 i/ o- r8 `- y; R% {% [3 B- m - ESP.restart();+ g- ?" a, l6 Q
- },[](){# U/ u' x; V. m- c
- HTTPUpload& upload = server.upload();
# [8 G# k1 `6 c/ C, X7 L% s! ~ - if(upload.status == UPLOAD_FILE_START){' Z i- Y8 a5 j" l
- Serial.setDebugOutput(true);
6 r4 S G- D0 r$ c( f* G# J - Serial.printf("Update: %s\n", upload.filename.c_str());; V# m' F3 U9 X( J
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;* w* J0 H! u) V) s! I
- if(!Update.begin(maxSketchSpace)){" k- C8 U9 K* _6 A! w+ \+ c# r
- Update.printError(Serial);6 K4 `9 A2 ?; T! _
- }- T! }1 f! F( R# s" i
- } else if(upload.status == UPLOAD_FILE_WRITE){7 b# }6 V) g _- D
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){1 [2 N; b$ `$ p- L
- Update.printError(Serial);$ F. k$ w1 O( a' T
- }
8 ^, \% o2 a {7 v - } else if(upload.status == UPLOAD_FILE_END){; b N4 k) z; |
- if(Update.end(true)){' \5 W0 H9 t& }! ?; d3 j
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
# w/ u0 M1 S$ J. I - } else {8 n8 I' J) ?% \4 t1 ]/ \
- Update.printError(Serial);8 u/ ~4 C) G& R) E2 c W$ ^- n
- }" j7 Z" {, N+ {9 V4 ^6 H/ \
- Serial.setDebugOutput(false);' i: y9 R- n) P
- }, C1 A1 b! J7 p+ L C
- yield(); u" _- r% u) L1 ~: C( k
- });, l$ B! | I" F) r) A6 H) r5 Y* |
- + O0 c6 _9 e! v3 w& w! n( @- s, Y
- digitalWrite(2,0);
' q% I W" B" J$ { - mainAction();+ m5 T& y5 P9 w6 A
- if (digitalRead(0)){1 V0 B8 S& {% S. l4 ]' {
- ESP.deepSleep(0);
9 C/ O( B8 F6 H7 I) M; o - } else { z* B$ r* f ~& Z
- server.begin();
) o& {( |- e* ^$ H$ a# ?7 f( }/ } - }5 ]" t# {3 I! @4 B: ?! m# \% `
- }
2 v% V6 K8 H5 m5 T - void loop() {; U) p0 X% e0 Y7 L0 _/ C; U
- server.handleClient();
! d5 t/ |! m" T# X- v3 j! }) M - delay(1);
0 W2 O: k( B3 G C8 }$ E( D - }
. V: t9 Z" [: [6 [7 d3 {" w - String doGet(String url){
, A4 `& Y P/ O% J. G" W - if ((WiFiMulti.run() == WL_CONNECTED)) {) m2 W% B" B% j8 ?$ X! W+ W
- HTTPClient http;
2 O( L9 u3 F" F& e) D2 N) Q - Serial.println("[HTTP] begin...");
" v9 I1 O1 H$ Q. W/ o! L6 f8 U - if (url.startsWith("https")) {
' v; j- ^) Y2 |( e! A0 M8 A - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38"); n6 X7 m8 t4 [
- } else {
. F' x1 x1 B7 x5 \! m& ^ - http.begin(url);
5 `! Q# j1 v) w$ }% y - }
8 [6 `" C' |+ Q( l, @7 m - Serial.println("[HTTP] GET...");
5 C' i/ V2 b- Q$ O5 { - int httpCode = http.GET();
/ y1 \8 a' | O; k: k f/ h, u0 e - if (httpCode > 0) { T: }5 K6 U F8 \
- Serial.printf("[HTTP] code: %d\n", httpCode);
5 \6 d4 y9 L1 B8 A& C - if (httpCode == HTTP_CODE_OK) {
" [& @+ X# l% x( `1 s( J - String payload = http.getString();
0 ?: o4 Z# ?' b. l - Serial.println(payload);& Y, A y/ L; n2 G: s/ `2 S/ I
- Serial.print("\r\n");
; N- Z% P2 i) J6 s - return payload;6 X: _+ H6 ]8 B. w" V9 d% v5 t
- }" Y. Q8 y& N: Q
- } else {; U' [- n4 l, J) p& d. P) }
- Serial.printf("[HTTP] GET... failed, error: %s\n",
* j( ]- z- o9 f6 V4 W - http.errorToString(httpCode).c_str());
* z1 P0 Y$ {* D1 j3 e3 Z: T' i7 S - }# d9 |8 Z) F+ [, O
- http.end();* `$ [" J0 ^; }' r. d# g+ _' \2 S
- return "";
2 {; ^7 y3 {& G S! O - }
# j! C1 U$ s/ D/ n( X4 W - }; e6 F5 f0 P$ x3 O- k8 y! z
- void mainAction() {
0 Q8 k/ j% [6 w6 D7 f - // 发送请求4 o+ l# v4 H: d) w; s" c l1 |
- doGet("http://google.cn");
' O& Y1 c2 H8 {" W0 C. z6 t - }
+ W& s8 m. h+ u5 \3 d
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