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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)7 Y- F5 n& R$ x! N
- #include <ESP8266HTTPClient.h>
; }. f; p _& [4 V$ a/ S/ N - #include <ESP8266WiFi.h>
( A! f2 w: _' t$ ] - #include <ESP8266WiFiMulti.h>
+ u: Q+ M$ f ]5 g - #include <ESP8266WebServer.h>
9 O" M% _7 C( b) s3 @2 R- G, e - #include <arduino.h>+ q: e' K: ?. J5 s/ ^( \$ {! E
- ESP8266WiFiMulti WiFiMulti;
6 h/ N2 i1 }. z% n; Y K - ESP8266WebServer server(80);* x5 i2 \6 ?/ ]# y
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";! E' f! p, X5 D5 i) ?
- ADC_MODE(ADC_VCC);( L% x0 v, b. ?- B
- void setup() {5 Y, T( ^) @5 ]" Q w% \% i* v
- Serial.begin(115200);
" ^3 R P+ M' C8 z3 Y - Serial.print("\r\n\n");
) ^& ]) l& t& I( J v8 ? - pinMode(2,OUTPUT);
+ V, l/ t1 R1 f ~ - // WIFI
$ x4 M, a, t& f/ H& h, C6 @+ F0 m2 A - WiFi.mode(WIFI_STA);4 O% x( V. d! R2 a
- WiFi.hostname("Sparkle");; j( f: r/ [2 r( j$ T1 I3 o
- WiFiMulti.addAP("wifi ssid", "wifi password");: u- p% H3 E! b- r4 n% f
- int tryNum = 15;
- l+ l: ?3 X6 O; k5 t7 T, J - Serial.print("Connect WiFi");
) _* x& ]* u) a. H - while (WiFiMulti.run() != WL_CONNECTED) {3 ?2 [/ t5 v9 _# J% x
- digitalWrite(2,0);- s" [: b" ]! S9 t, e# n- W
- delay(200);
/ z1 ]! W$ a8 Q - digitalWrite(2,1);
$ {9 s7 P+ R- {& | - delay(300);& v: a5 h8 S/ i% i7 {
- Serial.print(".");
! A3 A+ o0 b, Y4 P, c& p# P - tryNum--;
2 |* v. n9 e8 s. `% t - if (tryNum == 0) {7 w/ E; h1 R9 M) x- C
- // 1min0 Y1 V Q7 ]# o/ ~1 v
- // ESP.deepSleep(60e6);. K7 {" K( W5 b( B: f0 `! h! ]/ z
- ESP.deepSleep(0);
M8 C. |, I9 q7 M2 i) Y$ C - } a8 u- W3 l( c& [8 ?( ]* U7 R1 Q
- }
! q: K! P$ B7 o" i - Serial.print("\r\n");
& @7 [, A! X2 w8 @ - digitalWrite(2,1);7 K6 g+ R" C( f- u
- Serial.print("IP address : ");
# A& K D) `8 P) g, L( x) A - Serial.println(WiFi.localIP());2 q0 a9 O) U4 } n6 c
- server.on("/", HTTP_GET, [](){
4 F- w! y0 F2 ~ - server.sendHeader("Connection", "close");
. W. }7 ^ S* h3 {! \! i4 q1 c - server.send(200, "text/html", serverIndex);
9 v- q. B* x- ]1 T - });5 d# Y' f% H2 f/ Q4 h
- server.on("/update", HTTP_POST, [](){
/ j) r2 K$ c0 M0 A2 M# V2 p; w - server.sendHeader("Connection", "close");
% S5 x( R: H. c: G! F: s. T( b# k - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
3 R( j. ` W! Z( I - ESP.restart();( ~; C0 v1 H1 @7 m
- },[](){1 j" i) B7 \4 }# v; [8 [
- HTTPUpload& upload = server.upload();& Z9 U/ w7 `+ i% J1 W1 p
- if(upload.status == UPLOAD_FILE_START){/ @' H+ j. |& K7 z3 [/ R+ K1 J
- Serial.setDebugOutput(true);
/ T8 Q# G1 r9 q z) X - Serial.printf("Update: %s\n", upload.filename.c_str());
3 Q3 _$ Y* V/ Z - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;6 S9 v+ |$ K2 Z v4 b- X
- if(!Update.begin(maxSketchSpace)){9 @, Q' Z1 j9 c# {" v
- Update.printError(Serial);+ G$ z( q$ Q8 W! v: |
- }6 h+ z' w, `+ S. h
- } else if(upload.status == UPLOAD_FILE_WRITE){2 C- {" R% l. h' ^
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){# |& f+ }* W# A* ^: D: }
- Update.printError(Serial);
- ?, D- Z4 Z' B b) X1 r# d, B - }
7 q5 V$ G% F- u: P" ? - } else if(upload.status == UPLOAD_FILE_END){
" t8 ~, B: S0 B - if(Update.end(true)){; I+ m" p# I' w1 t6 S. n. U8 Q
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);5 [( @4 n A) F" x+ M
- } else {
) a0 s1 e" b3 C* r- I - Update.printError(Serial);
/ ]. H/ Y6 Z' U* Z - }& C! f( o! H0 @
- Serial.setDebugOutput(false);( ^! f1 z; ]3 _6 L& v' s
- }
6 c, k9 Z! o6 u: W3 Z! m0 D$ p/ H - yield();
8 i. T6 ]# n* g9 ~ - });
/ \9 n* i8 z& Y4 ` - . p5 J F6 C2 B* ]( Q
- digitalWrite(2,0);
5 \9 q9 E. c' Q - mainAction();
1 i" Q/ W. o9 x' I( p - if (digitalRead(0)){
' }' L% H/ v& U& e1 } - ESP.deepSleep(0);2 X2 j* k6 m: ?; g; V* k
- } else {
2 C0 u; S! G) K, ^1 | - server.begin();% A" T5 k/ N. W8 O. F/ D
- }/ p# l" N9 Z" M& W' L& E& }
- }1 K5 [1 a- T9 `
- void loop() {7 ?9 Y8 ?# X$ u0 p) F0 ]$ n1 p$ b
- server.handleClient();5 F7 U& b4 v" B/ q
- delay(1);
2 H* J& o* R, a a% ` - }
1 }0 r+ h0 `) L% n3 n$ t - String doGet(String url){5 h% u" f! ^: O/ v ^% m
- if ((WiFiMulti.run() == WL_CONNECTED)) {
: c% v; X7 A1 Q) M# \ - HTTPClient http;) z7 L. ~* U+ x; q \3 s
- Serial.println("[HTTP] begin...");
( E4 r9 j& \; u5 E; D( M8 j - if (url.startsWith("https")) {
% a+ p0 A2 P7 B& [8 p - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");9 e0 s% t, Q4 d# M8 A, A8 r0 P
- } else {
( B4 a3 ]9 }7 A - http.begin(url);
- d. g: w3 |& G% W$ ]. E - }5 v* |" t6 O, L3 z }; _
- Serial.println("[HTTP] GET...");+ M2 H3 @$ `6 ^: ?4 W4 @& X1 y7 P
- int httpCode = http.GET();
! z8 b2 i4 _" \0 o; ^- S) C1 {+ q - if (httpCode > 0) {) f' c6 O2 D# `5 O" _
- Serial.printf("[HTTP] code: %d\n", httpCode);
( U! C3 j' u* T" V& j' O - if (httpCode == HTTP_CODE_OK) {/ h) `9 u# C" F
- String payload = http.getString();
9 D1 H T2 o3 h1 ?; s8 { - Serial.println(payload);( p+ c: u* b# v% E, A
- Serial.print("\r\n");# g$ p1 t( W0 j7 D! S
- return payload;
" |% v0 N# z T! Z+ R$ H - }
7 U# N, J! `7 v6 |- d: v# k. K- I - } else {2 \+ }" Q. A/ _- D, a: K% m& k! n- x
- Serial.printf("[HTTP] GET... failed, error: %s\n",
8 d. n( ^# ~) m - http.errorToString(httpCode).c_str());' o( W) I, h+ D3 R6 o2 Q/ Y" Y. F
- }
' c% s# H* n9 I- S' Q. N4 j - http.end();
1 f! R+ B6 Y5 J& ^- T/ [( J3 G - return "";
: U1 y% |. @ U) }9 v: ` - }) Z y9 `' a7 k# W% p* C
- }
" K- }% e. z r8 t/ `; N, y1 e - void mainAction() {
/ f5 F: M* q/ k- w8 R4 _- K - // 发送请求
% l7 T8 e( }. c! r/ e$ p! ` - doGet("http://google.cn");
' O. B" o" q: h/ R! g8 z. P - }
: g/ F/ W9 Z6 n0 {
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