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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), s( V( m9 C2 a( F8 `) G. D
- #include <ESP8266HTTPClient.h>2 o$ X- K9 ~% @. P$ G+ g& M
- #include <ESP8266WiFi.h>, Z% x/ x' n; \: q2 D
- #include <ESP8266WiFiMulti.h>$ Z! R6 D1 }5 S4 p: \& X
- #include <ESP8266WebServer.h>8 V& N# T& Q1 F. z4 ?4 ?+ Z
- #include <arduino.h>- z& S5 Q) O. n0 t
- ESP8266WiFiMulti WiFiMulti;* `" Z8 o* _3 k: k6 F
- ESP8266WebServer server(80);; o t; p, {& b6 q% W
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";3 G2 I5 l2 e" O5 L |% v
- ADC_MODE(ADC_VCC);
1 X. i A# \3 i4 E* R; Q+ N/ v ]8 A - void setup() {
7 w7 i* J6 b- ~. j& V& K) D - Serial.begin(115200);
; @! G- p7 A3 C& h - Serial.print("\r\n\n");
! N5 S/ J+ b. F$ p% O - pinMode(2,OUTPUT); u5 P4 |1 {; P) s9 N8 h$ f( E
- // WIFI
" ?9 k, O8 X7 ]" Y: C; d( e - WiFi.mode(WIFI_STA);' B0 ^ r1 H% `# F
- WiFi.hostname("Sparkle");; q& `0 N& x4 H; m/ d
- WiFiMulti.addAP("wifi ssid", "wifi password");5 y8 e" U t' h7 e3 d% Y. x9 \
- int tryNum = 15;5 T* y% ? x0 J" G* Y5 @1 o3 F
- Serial.print("Connect WiFi");( O( U) e2 M" K2 R4 }( p
- while (WiFiMulti.run() != WL_CONNECTED) {9 q5 E* [3 R; v( p) z5 w$ |2 e
- digitalWrite(2,0);
6 w y) K6 q3 Z; X - delay(200);
: x' U3 r5 d2 p {" r - digitalWrite(2,1);
1 u' R, [; q( ] - delay(300);1 W. q0 o* T. U- r
- Serial.print(".");8 O& j! R( f+ g; x1 y# ~1 X
- tryNum--;
0 n% J& ` e- a5 ?5 k0 \3 X% w" E - if (tryNum == 0) {' u. r7 U9 G7 p6 ^1 X0 s8 k
- // 1min
s; }$ o2 V. G7 y: Q - // ESP.deepSleep(60e6);! {; e# L& o, h; l7 K" N
- ESP.deepSleep(0);
% R/ E8 b1 y6 G - }# K: D. I7 D9 q9 {; E/ i, e
- }* t8 n1 |* m' u- i4 ~" F
- Serial.print("\r\n");1 q; f+ ~2 {7 l5 f/ ?4 D: t
- digitalWrite(2,1);( v# M! ~$ M% d" k) G$ B
- Serial.print("IP address : ");
& Q4 S* s6 ?1 ~& Y6 X4 y9 h% v - Serial.println(WiFi.localIP());/ F* a. ?5 p* _
- server.on("/", HTTP_GET, [](){
9 J- k3 j; l. r% M - server.sendHeader("Connection", "close");
# n) k+ \, U N! _' [5 i - server.send(200, "text/html", serverIndex);
8 }1 z4 `6 m3 m/ l; t - });
' o- H* X0 f `8 p1 s+ h/ ?6 ] - server.on("/update", HTTP_POST, [](){& _* d: O8 P2 B5 M! l4 Q
- server.sendHeader("Connection", "close");2 F0 N" |* Y: _/ I, K: ]
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");9 I6 F: A5 g" F0 q1 M& r0 x, d
- ESP.restart();
% g0 J% Q3 c2 b - },[](){! v/ H u0 G z" T( h m
- HTTPUpload& upload = server.upload();/ y( J: p5 A5 }9 U+ p
- if(upload.status == UPLOAD_FILE_START){8 I! R, Z8 I5 b
- Serial.setDebugOutput(true);: ^% L ~( c+ q s$ ]
- Serial.printf("Update: %s\n", upload.filename.c_str());2 V: M! q, N8 y
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000; ~. m( N& i) L
- if(!Update.begin(maxSketchSpace)){* i: [6 j+ B' n! m+ e8 u
- Update.printError(Serial);5 Q; J, [4 z2 H0 {# ?8 a
- }: g6 M+ P; E' @" Q" Z) F, ^; G7 p+ w
- } else if(upload.status == UPLOAD_FILE_WRITE){0 A" g& Q) T6 a& x" n6 A0 j
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){9 J: A$ W1 l! @; A
- Update.printError(Serial);
- u$ q. d$ t! E ~ - }! F! A2 ~, @3 X' w( P- U. k* L5 y" I
- } else if(upload.status == UPLOAD_FILE_END){5 M: g1 f, K# i. w/ ~6 P d6 b
- if(Update.end(true)){( D) G5 A, l* c2 S% s$ Z
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
2 z: e4 V7 g7 m* z0 l' z - } else {
" X* `) K2 r' t) |( u! l, M) X0 W - Update.printError(Serial);8 e U; }6 P( W3 R
- }
1 e) t4 f- u, P- b) N0 j - Serial.setDebugOutput(false);
6 s; c# M9 S. _- X/ _/ p - }/ K0 w) `) w+ L* o
- yield();
' V+ a) s2 g# m* `5 G - });
2 B) y d! s' j8 w0 X - 7 l3 f. f0 m- T9 e/ M. y6 E5 J. E l+ A
- digitalWrite(2,0);* W ]+ w7 q* ?
- mainAction();7 X/ p% s# y" H( u
- if (digitalRead(0)){. [5 J: s' m# ]4 W% Y+ B" X
- ESP.deepSleep(0);
) y, C( D* H9 k4 [. s4 f- i - } else {3 T0 p* O5 Z {$ t
- server.begin();3 z3 c* i5 z4 W
- }2 c& L# p- L3 `& K: a* ~9 z
- }
" F* x9 \5 F7 ~. G0 {2 I/ e - void loop() {$ b( w/ B I; t* o
- server.handleClient();
' S) d2 a1 f5 |2 j& ^+ K$ O5 N. ? - delay(1);/ @3 V+ y% x4 ` g
- }
! \5 K2 X" j# U1 x F) I - String doGet(String url){
% f4 K! N" _- z4 x3 J* ] - if ((WiFiMulti.run() == WL_CONNECTED)) {( M; I: p f* n( a6 _2 ]- j
- HTTPClient http;
2 C$ _( t K1 K/ | - Serial.println("[HTTP] begin...");
4 ~2 \ S1 x. [ - if (url.startsWith("https")) {
: S! U# q& h& V - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");1 P* T! l! F7 J3 H% Z4 b1 W
- } else {' ?3 P' j, X1 Z+ a1 \9 u1 H
- http.begin(url);
( E/ x7 B! p* L- p' |( o1 I9 t - }
u( x) B, O7 g2 Q7 F, \ - Serial.println("[HTTP] GET...");
$ ^2 G( y5 q0 u; S7 V# R - int httpCode = http.GET();
" j! N3 J/ t b8 Y+ }5 T. \& U - if (httpCode > 0) {/ F* I2 L H6 e( k0 I% t5 A. F
- Serial.printf("[HTTP] code: %d\n", httpCode);
. a1 ?3 \5 O7 E0 ]8 W4 ?0 O - if (httpCode == HTTP_CODE_OK) {
8 {* [. r' X7 J3 W* V* f. _ - String payload = http.getString();
9 c9 {5 ]( ^! V# m, [+ L6 A - Serial.println(payload);
" L1 V$ x2 f7 m# m - Serial.print("\r\n");
" @) R: n# T, o0 I1 ^: F2 W - return payload;
7 `7 Z C1 K4 b - }6 Z6 j' m4 ^, C! D5 [# h' U9 w1 C
- } else {
+ R# q% {6 c4 k9 F% f, ~ - Serial.printf("[HTTP] GET... failed, error: %s\n",# y& ]8 i, q3 L* }+ F a
- http.errorToString(httpCode).c_str());0 Q' b8 ~6 ^6 x/ A1 S, c
- }
) B# S* ]% h8 | @+ I; t - http.end();6 x# T. J1 W7 ^4 u- N, U3 u
- return "";
. l& ^4 k5 |6 F5 y - }, ~9 z4 x! v# @* U
- }
. P8 N/ {/ y) B+ d' C5 { - void mainAction() {
- G8 p/ h0 U" V& j5 S! K% k- X# a - // 发送请求
& c" M% J+ k0 F - doGet("http://google.cn");
/ f9 y: k* p) F5 w - }8 k( m: j* X: H. c2 t
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