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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" z) E8 t% ~8 M
- #include <ESP8266HTTPClient.h>4 S8 g4 {+ L% C8 ?+ K
- #include <ESP8266WiFi.h>; F' n9 X4 p$ m# V! M
- #include <ESP8266WiFiMulti.h>
- y3 D. X. ^, E4 \4 t p7 x- a - #include <ESP8266WebServer.h>
$ {; I0 @. S% X" f/ l& ?+ t; Q3 z - #include <arduino.h>5 o$ N. o! Z, S8 S& d3 r
- ESP8266WiFiMulti WiFiMulti;5 L9 i* }2 i4 P( r! R' c
- ESP8266WebServer server(80);
$ b' v- O% @7 V& b2 o: M - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
W' T" c# e9 J, M4 |7 Z8 T - ADC_MODE(ADC_VCC);
}% }8 |2 D) s+ i+ w - void setup() {. x+ c2 y' y- b( U7 h1 M1 {$ B* n
- Serial.begin(115200);* Q: m4 Z; M, ]" V& }
- Serial.print("\r\n\n");9 E- g- }0 G0 V* B2 L0 A/ d
- pinMode(2,OUTPUT);
3 U, @# ?- f) L1 p, Z J - // WIFI
4 X3 K9 M( L. C, K! D- L+ i# c - WiFi.mode(WIFI_STA);
5 x7 ^ {8 b# G t1 M1 W, {- Q# ] - WiFi.hostname("Sparkle");7 _$ M7 J5 y* n! M% r
- WiFiMulti.addAP("wifi ssid", "wifi password");% y1 k s. _) b* X8 y8 p
- int tryNum = 15;
6 d5 z! J. d' _2 d& k* e9 R7 Y - Serial.print("Connect WiFi");6 n% l+ S6 X8 ^7 g" G: B
- while (WiFiMulti.run() != WL_CONNECTED) {
' X! u8 |% \4 F1 f2 I G2 W1 p5 _* t - digitalWrite(2,0);
+ O6 H) N; Y) v: F/ q - delay(200);
- G- B* @6 p2 f! D* {6 d- `4 o- d9 H$ Z- Y - digitalWrite(2,1);
. C+ k& y, f* f8 n- k - delay(300);
5 X; p0 K7 \3 [' K4 x1 @* f - Serial.print(".");( ~& V% v+ U) b" b8 t
- tryNum--;
2 W0 x6 }' J& s; y; W - if (tryNum == 0) {
: w. m& e# u1 e- Z8 C; X - // 1min: M7 [/ t- ~$ {: Q( O
- // ESP.deepSleep(60e6);
5 k3 f+ N4 t' p& S9 a! o - ESP.deepSleep(0);$ u- _8 c* B3 W
- }
; \! p' o) r. D1 o: y5 v - }* _+ J6 q/ S# J* b# r
- Serial.print("\r\n");- |4 ~" c* ]& q- W" J. v6 K
- digitalWrite(2,1);5 X) c0 l; V9 S& Q& q- L
- Serial.print("IP address : ");
; S- s6 x3 a; s0 o) U - Serial.println(WiFi.localIP());
& A3 d( P' t, l3 X: e: M7 J7 D - server.on("/", HTTP_GET, [](){9 ?3 ?% I2 P0 v9 p/ p
- server.sendHeader("Connection", "close");0 g9 v' ~* p8 V- ]( q5 M
- server.send(200, "text/html", serverIndex);
0 y* ~& _6 b# m( h0 s* Q - });& F X/ |" X' p. w! @7 U
- server.on("/update", HTTP_POST, [](){
1 v% d. F2 p- | - server.sendHeader("Connection", "close");
0 S. q; @# ?+ @ - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
9 l& a5 {6 \* `+ P: T0 P- f - ESP.restart();
' v+ [. A1 p- ^0 M" U$ t - },[](){
; Z( V+ f6 _# ?- C! P# \ - HTTPUpload& upload = server.upload();! z; e' x6 e: q
- if(upload.status == UPLOAD_FILE_START){/ {; L' e: m/ a. ~! ^( A, y( h; @5 q
- Serial.setDebugOutput(true);4 H/ }6 h' A8 D( [3 ^- k
- Serial.printf("Update: %s\n", upload.filename.c_str());" x$ ^' L0 z0 X
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;* y, j; `* V* f' \) [
- if(!Update.begin(maxSketchSpace)){
; D4 _7 O, n/ x% Q - Update.printError(Serial);
6 t+ g3 W; _' g. ^* l - }
# b! p) R; m5 j& k& P9 w z5 P - } else if(upload.status == UPLOAD_FILE_WRITE){1 B3 p* t9 U5 N O3 t; v. o8 S
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
) w- E0 }* X5 r - Update.printError(Serial);! [+ A v6 s( p0 D2 U, p l+ D
- }
0 y. Q) K7 n. g8 o* x6 G$ Y - } else if(upload.status == UPLOAD_FILE_END){5 q0 X R; H; Q5 N
- if(Update.end(true)){
* y; G; }5 u; j$ B" e - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
9 F# o! ^! S$ ~5 c+ V+ L - } else {
% w+ B" _- E9 R" a5 g, Z4 I - Update.printError(Serial);/ U& W: i( v- l
- }
3 S3 n8 ~6 R1 R/ E5 _( W B - Serial.setDebugOutput(false);& ~+ c/ T" |8 l
- }
4 F! m( J' W' x6 D; \' i - yield();
5 K% T, o5 N, | - });
* O9 ]7 Q+ B6 R8 S# F - 5 G: E2 Z! S9 C* ^9 S
- digitalWrite(2,0);( i! e% `, Y& k) _# V* w, T
- mainAction();
2 p6 u5 |8 O+ @. H - if (digitalRead(0)){+ ~" H4 g# P( L- G6 a3 C
- ESP.deepSleep(0);
# U6 K% F# _# ~8 R* j& K - } else {
# X& x: i! T& }7 T1 [ - server.begin();6 A2 ?+ h- d7 O! D$ [9 j
- }. w. Y K2 `/ Q
- }
+ t0 h# E& I8 o! E/ |2 [" X - void loop() { Y2 O2 E" X: d- V. M- B/ m$ n
- server.handleClient();8 m4 ^: n- C1 a W# W- ^ J" a
- delay(1);0 M+ t& x: [9 v. [$ q! k$ S
- }
4 V. Z5 \' h1 Q( s6 n1 H: ^ - String doGet(String url){
$ d$ y1 E( m v' l6 C - if ((WiFiMulti.run() == WL_CONNECTED)) {: p3 B% w% n3 b* X% p
- HTTPClient http;
5 s& z$ l. D5 m" _ - Serial.println("[HTTP] begin...");1 N, K S% }: ]* w3 E
- if (url.startsWith("https")) {1 O4 R; [4 x& y% i
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");' k2 b* J6 s; C! ?0 W% _) ?5 _+ H
- } else {+ Q% k/ ]: p" w3 k1 Y9 W p
- http.begin(url);
* D* a7 V8 ^( n; W! q1 X, J - }4 C' L6 F, g- s( e
- Serial.println("[HTTP] GET...");( y/ `) W. ]1 \* [1 Z( ~
- int httpCode = http.GET();
4 c% e( v# }, _ - if (httpCode > 0) {3 G, Y; X" O6 J3 Z) k2 s7 r* X
- Serial.printf("[HTTP] code: %d\n", httpCode);
7 Y& }, N: j, @: z - if (httpCode == HTTP_CODE_OK) {. E3 D3 |2 c8 \! [4 I' ?
- String payload = http.getString();/ ~# h3 H1 a& P
- Serial.println(payload);1 U, e7 o7 y( Q! D2 x/ C' e
- Serial.print("\r\n");- ?2 K! c D7 z! A( i
- return payload;2 y& v! ]* o! j! |5 L) l6 |
- }
/ F9 J9 Q$ i7 Z# W' t9 K$ q - } else {$ E/ T7 ^' D, {6 x4 a3 J
- Serial.printf("[HTTP] GET... failed, error: %s\n",
/ K$ @$ P6 N/ f1 v4 u5 P - http.errorToString(httpCode).c_str());
( y) ?/ S2 N; O" { - } K' @5 q: K( ^0 l2 b% y
- http.end();
9 A6 B6 g1 W% |, q - return "";
9 ]6 z' D5 J. e - }
* B) O3 Y( o) g/ N - }
4 d0 s$ @# G1 e1 X4 m6 n3 ? - void mainAction() {
8 `5 o$ [" U. {+ a/ O( h - // 发送请求
5 ]5 x& ]4 U9 e2 \$ _' X" R - doGet("http://google.cn");
# d6 u; z4 T7 F, m% o! E# s - }( ? s7 c4 Z% U9 N( ~) i# P% \
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