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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)% @ X7 W9 E/ Q \$ j. v9 W
- #include <ESP8266HTTPClient.h>
C0 E1 }* O% X - #include <ESP8266WiFi.h>
6 Q$ |9 B/ B. n) q* f - #include <ESP8266WiFiMulti.h>
4 t) }$ q: I( z' D! w/ E. i8 B n* n - #include <ESP8266WebServer.h>
; h" `: H) y# S, A; k; } - #include <arduino.h>
! D0 Y/ W; h/ q - ESP8266WiFiMulti WiFiMulti;
7 y# ~ Q, q% W& b - ESP8266WebServer server(80);
( m( G. }2 k4 f# A7 d5 G - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";9 `9 Q4 q, I7 X
- ADC_MODE(ADC_VCC);4 [ Z$ D+ s0 e, B+ M
- void setup() {
7 B* r9 Y6 X6 l1 ^* A/ h - Serial.begin(115200);
) i$ k- w( M) B- G9 W2 Z* U5 k6 @9 X - Serial.print("\r\n\n");
2 v( U; ?. |! o; \ - pinMode(2,OUTPUT);
& h6 R, L% w" G6 A* u0 d; ]; d - // WIFI
$ E, @7 j7 N! c C# v" [/ }6 V G8 j - WiFi.mode(WIFI_STA);
" M2 i6 q9 |8 N) j - WiFi.hostname("Sparkle");
7 A0 \6 }! w& g1 J4 D! B6 c# a - WiFiMulti.addAP("wifi ssid", "wifi password");
' r. O0 D, U* Z3 i' C4 Y - int tryNum = 15;
8 J2 n/ y! D w - Serial.print("Connect WiFi");# V( S u* }& d/ Z4 n. ?5 Z
- while (WiFiMulti.run() != WL_CONNECTED) {
% g, h$ e. `; y. O - digitalWrite(2,0);6 O) _0 R( R, T( J4 p
- delay(200);
+ d% T$ p/ G0 H P& ^8 y; T! [1 i - digitalWrite(2,1);
; U3 K+ A& P9 d4 p* x G. f - delay(300);4 f( ?1 [3 n/ E: p
- Serial.print(".");$ n7 g- J( c2 ?" n# t& x3 J
- tryNum--;
+ [( E5 f g5 o: I4 Y% l - if (tryNum == 0) {
; P- ] ^: q1 i - // 1min* u) O7 u) ^( k' {1 z; r; N: \
- // ESP.deepSleep(60e6);
/ ?. e3 g) F% Z4 Q! f) J - ESP.deepSleep(0);
- r. m& `8 ?; g7 c - }! r0 l5 w) G# |' B- U/ z. H3 ~
- }
# _, M% |# ? i' J6 U - Serial.print("\r\n");6 t2 A' _) F- Z T: C: y g, x, e4 T
- digitalWrite(2,1);, u5 C5 F1 \, K% Z0 ~& k$ W
- Serial.print("IP address : ");2 c% L* ]( p' \: P9 R0 X
- Serial.println(WiFi.localIP());
( y$ v2 k7 k; a2 g; Q9 F; L! A - server.on("/", HTTP_GET, [](){
/ F' h( L1 A# O$ G - server.sendHeader("Connection", "close");
! B" O7 C+ H W+ x# J - server.send(200, "text/html", serverIndex);7 r$ B0 G c- D
- });
# P+ o/ d* t2 A: D - server.on("/update", HTTP_POST, [](){: C6 s8 T1 O/ [: l- d3 y
- server.sendHeader("Connection", "close");' n0 V+ G m" d3 O" L" q7 w. y4 S
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");, E1 P4 m. f& Y9 J4 Q& y
- ESP.restart();
& x& r, h! T8 V( g - },[](){, f) e5 s" }% x1 j3 s: i
- HTTPUpload& upload = server.upload();
* [) ~; ~& j" G - if(upload.status == UPLOAD_FILE_START){: ?8 Z/ e+ b; A; [& n$ N
- Serial.setDebugOutput(true);1 m# v: i) v, c; h- \ ^7 e
- Serial.printf("Update: %s\n", upload.filename.c_str());+ T; }. R* w* g, _
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;+ n7 w- [9 P9 A' X+ D7 m9 d
- if(!Update.begin(maxSketchSpace)){: q% [; U7 l5 {# L; O/ P
- Update.printError(Serial);4 q2 l, s$ c/ {5 m6 E* y
- }
3 [, ^) t2 s9 R, P7 F8 q - } else if(upload.status == UPLOAD_FILE_WRITE){2 _: d8 b0 M% H
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
4 }2 g2 w' N) @2 G C - Update.printError(Serial);7 D$ A9 y; H: c5 p$ b) P: d
- }
4 _) A0 M. R( Q$ e- _/ P) v O/ \ - } else if(upload.status == UPLOAD_FILE_END){% G9 b/ w y( c' s: w! _" D/ h
- if(Update.end(true)){
7 U) G% o" N4 Q; |) r- L2 [2 d - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
3 I9 M3 `& ]0 q2 `6 ~+ _ - } else {
) h( }5 `& {9 U3 c6 ?7 Z3 F7 t. l - Update.printError(Serial);2 Z2 M: G$ K0 h2 H( e4 b
- }
, ~) ^5 q4 W# ]4 L& a; R7 }* z( S - Serial.setDebugOutput(false);7 u, F c/ r# N* i: w& B' B
- }: @& ~& A1 Y0 f7 {* V4 f; ]
- yield();
) ^; j0 Q' W. F0 K( r' L* ` - });
/ |3 T4 T, o( W' S9 K - % B! f& p2 }5 @( J% T; a
- digitalWrite(2,0);& I0 n1 S/ m7 X
- mainAction();
2 Q/ G+ I2 }: a7 x - if (digitalRead(0)){1 k$ v, H8 Q) w* s
- ESP.deepSleep(0);# H6 X9 H$ O# O. D2 A" s
- } else {8 W, |' n& e p; X& j
- server.begin();1 y* p* \% W9 n/ d8 r8 o5 ]
- }2 e8 a& Z# x2 j/ [! A: I9 G$ [
- }
' O- Q# j2 m0 f, T- L/ G - void loop() {
, r4 |1 b1 k" d# q4 w& y+ U - server.handleClient();
, h( [% I7 E% m Y - delay(1);
. ]+ W0 S: v: ~% k+ i$ b7 y - }
- x8 O7 I5 B, P( c - String doGet(String url){
6 S9 ~/ _8 F* S0 b - if ((WiFiMulti.run() == WL_CONNECTED)) {
+ m- l8 E2 v4 D5 } - HTTPClient http;
1 v$ i# X, z3 F& a* v3 |1 }! F% y - Serial.println("[HTTP] begin...");+ P0 M6 W! u% A0 {
- if (url.startsWith("https")) {' x$ o2 P9 i' B0 m
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
+ |% f. M: Q# m* E5 r0 z - } else {
) D0 k7 j# I( o7 R9 R( Z+ d# ] - http.begin(url);
2 R }3 m, Q! o3 \! g+ I% k/ B4 C - }& c) c8 r+ [9 }+ ^: X3 H. b- A! ?
- Serial.println("[HTTP] GET...");
1 m% R- e+ G1 M" x - int httpCode = http.GET();3 F4 ]2 n, i l- j T6 T9 Y
- if (httpCode > 0) {9 z0 F" b# d4 k: ^+ `& b+ O
- Serial.printf("[HTTP] code: %d\n", httpCode);. D8 V+ k0 l: H
- if (httpCode == HTTP_CODE_OK) {
+ L, [- \5 R) @; K+ O* O - String payload = http.getString();
8 W; y! G/ b. E7 H- Q* g/ c - Serial.println(payload);/ g+ P* g, u' r2 j8 S6 E
- Serial.print("\r\n");
' p- ]0 @1 V8 J9 k& q2 v! N/ k - return payload;
6 I, j' P3 L6 C - }
' J( i* @; m A" Y; s' i - } else {
7 X4 l. p# s& v. @ - Serial.printf("[HTTP] GET... failed, error: %s\n",
1 p& D: f5 f0 [, C5 W+ f( ^: M - http.errorToString(httpCode).c_str());
?0 p" A4 W7 X7 [% C - }
0 @3 _* |, g: ]$ X- K - http.end();
& t' k$ f9 p0 Y t; V - return "";1 @: s- k q& F' Y$ F. |
- }4 K2 s- J" p" S8 m& o: [5 R+ n
- }
% y& B2 X" v+ N - void mainAction() {
2 h9 G4 Y1 ? }! W: D. M( N- Y - // 发送请求3 _( I/ z( b+ U+ T% v
- doGet("http://google.cn");
) ]8 L- [0 D0 u& ^/ `. N4 u+ { - }
) u' M" m0 D1 e* D* h# M
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