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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 U4 Z4 ~8 T- h3 {* S% V# w, S- #include <ESP8266HTTPClient.h>+ r: q, ^" r; I! @
- #include <ESP8266WiFi.h>' w3 O* d8 a# e; F
- #include <ESP8266WiFiMulti.h> r$ r8 m! p, ^. w2 G, f6 j( x/ j
- #include <ESP8266WebServer.h>) E" x) |, E: G8 ]
- #include <arduino.h>7 n( K/ Z ^2 G9 r
- ESP8266WiFiMulti WiFiMulti;
* T" A& [% t0 O4 E - ESP8266WebServer server(80);( f# J* K( H; t/ E
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
: D# c9 F) C; J. ^7 s0 y& E - ADC_MODE(ADC_VCC);
, P! ]) z! S1 X; C- s. E& h - void setup() {
' y0 @! `8 u( r" R/ F% S - Serial.begin(115200);/ K P: I3 w$ M# b+ n9 m
- Serial.print("\r\n\n");
0 B/ h5 L0 y3 t* A - pinMode(2,OUTPUT);( `$ l3 e* P! Y
- // WIFI
7 G7 n6 a! l; a - WiFi.mode(WIFI_STA);
0 z9 O# e$ n7 L; D4 m- D - WiFi.hostname("Sparkle");
4 F: j6 O& r& k4 I - WiFiMulti.addAP("wifi ssid", "wifi password");5 A, E6 ^# \, V$ l* n6 p/ n
- int tryNum = 15;
b! Q3 i) `6 d( C - Serial.print("Connect WiFi");
: w1 T6 r2 L5 t% A" ]; C - while (WiFiMulti.run() != WL_CONNECTED) {
6 i) Q& Z+ W# O: c* y" T - digitalWrite(2,0);
1 }+ o6 Y" w( w5 g0 `, a - delay(200);0 T0 V2 h' D& ], s: \4 R
- digitalWrite(2,1);
: d. W9 L, \' l/ F9 }+ A8 ~ - delay(300);
2 ?4 h# X( }2 Z! G+ z - Serial.print(".");' A W& g5 F& I9 I1 \6 M
- tryNum--;- d% \, Y3 c- d/ f' b+ T1 w
- if (tryNum == 0) {
+ ?/ H) F7 B$ j7 u9 L& f' T) p" g - // 1min) h' J" ~% `! X$ ?; p
- // ESP.deepSleep(60e6);
# Y) s3 k7 g* P7 c. a: H - ESP.deepSleep(0);
6 u# | Z" l9 k+ _/ T6 k( ] - }
$ s1 U, n1 U* P+ H% j6 O - }" T2 Z+ T' X1 o/ i
- Serial.print("\r\n"); q b/ D4 q9 `- W
- digitalWrite(2,1);
# W/ N, K% _: H; w2 R) }* l! a - Serial.print("IP address : ");. }# u5 z0 {$ g7 w% w" K i
- Serial.println(WiFi.localIP());+ u9 K! ]% \+ c) p) Y* V% S3 A
- server.on("/", HTTP_GET, [](){2 y% W0 A5 F# h( v: P( k6 h: k
- server.sendHeader("Connection", "close");6 F- T- M4 G; ?* y6 c5 P; `
- server.send(200, "text/html", serverIndex);; f# o& {$ z3 N% K
- });
) z$ s# }( U6 ?& @ - server.on("/update", HTTP_POST, [](){
# @6 a- O! z5 z4 L - server.sendHeader("Connection", "close");
. i* C4 @! ~% i6 H4 z - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");9 m1 P# O+ @# s4 l+ z
- ESP.restart();
! C' l" S7 {( R1 r$ k0 `+ d" H6 W - },[](){" M; [' s* [; T+ k' f& n; Z' L/ E
- HTTPUpload& upload = server.upload();
0 U6 p" i( F( \) `5 W# g( E - if(upload.status == UPLOAD_FILE_START){
T. P" U& X) `9 s3 t; _ - Serial.setDebugOutput(true);
+ }5 ^) Z9 h/ P# h J9 _/ U* x - Serial.printf("Update: %s\n", upload.filename.c_str());
. i9 [: Y; x+ r8 \5 P. _ - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;0 Z F8 ?* F4 ~# }7 l
- if(!Update.begin(maxSketchSpace)){; \2 h, r. s, ~- M
- Update.printError(Serial);# c- q% G" i4 ]5 ]7 U5 g; }
- }
2 a" T' V& ?- N! x+ n8 D5 M0 U - } else if(upload.status == UPLOAD_FILE_WRITE){7 e4 c. D4 ^( N( N9 C1 [& y
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){9 |; I9 M/ t! Y1 X- G
- Update.printError(Serial);
, r* s/ `" w) {& i, e; ]2 j - }( S) |9 G7 B& g% T+ P9 A
- } else if(upload.status == UPLOAD_FILE_END){, ^0 i/ V2 @* A3 w
- if(Update.end(true)){
0 W c& |# X9 a( _5 Z - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
) o3 Z7 J4 V/ S: {5 | - } else {7 O O+ r. Z6 S) N$ ]
- Update.printError(Serial);
3 w! t! S7 G+ y, e - }
/ T: F1 V$ X7 R2 S - Serial.setDebugOutput(false);" Z- Q# _- ?* I7 O
- }, r. R* _( n& L6 g4 `
- yield();; z$ H1 i$ o8 ]/ f3 s, l6 z$ ^
- });
! j+ r/ U8 [7 k* R! S - & T6 {" n' E8 i/ ?- P7 f* a8 B
- digitalWrite(2,0);
% y; b/ Y; s. y R, v5 T! X8 u( X - mainAction();
( V6 X; d- e8 R6 E' T6 M - if (digitalRead(0)){
# }- j3 F0 i# \$ k6 X( h - ESP.deepSleep(0);1 s; A8 \5 _) ?, u
- } else {
# g$ D `2 e7 h - server.begin();
' i3 J/ V( B# A& Y4 w" T u - }4 s J, C7 R; v& t
- }
5 b( u7 D* v6 q) E6 C$ r. P# _/ M - void loop() {
' U/ l8 I( @% H. w4 m: _' [ - server.handleClient();' G4 D$ [, V+ [. F5 t
- delay(1);
3 i, O! \8 n6 P, s& {* K' |( ] - }% ]2 h- v2 m& _# R3 a) o9 v
- String doGet(String url){1 |( S b: i: V. c% q' j
- if ((WiFiMulti.run() == WL_CONNECTED)) {2 ]/ S H( ~' s1 m+ ` I2 }6 f
- HTTPClient http;2 s4 B* A* ~4 Q) D- Z( r5 H F
- Serial.println("[HTTP] begin...");
0 l2 w+ z7 @- G- a0 o - if (url.startsWith("https")) {
& h/ x0 h% k2 f, i - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");+ _) y( I6 f0 o) X! t D
- } else {" X5 `- y" i" j8 q2 z
- http.begin(url);
2 b( Z7 ~/ ^, n J( r/ P$ g - }
" u* C! O; G1 P. r - Serial.println("[HTTP] GET...");0 o7 E: ?* O0 X5 L9 y4 K& S
- int httpCode = http.GET();, K0 n9 z! i2 B- x
- if (httpCode > 0) {7 q4 X9 ]8 F Y: v4 \
- Serial.printf("[HTTP] code: %d\n", httpCode);
- x8 R. _" s9 X" r- h - if (httpCode == HTTP_CODE_OK) {
% R- G/ }$ W. {! U1 ^ - String payload = http.getString();
# L D( f+ D$ K. ]1 }! `: h0 | - Serial.println(payload);
6 O$ E3 c6 j5 L/ |% m! Y - Serial.print("\r\n");
2 R! H% ~" T, L/ C; ]. t6 v0 G, r - return payload;3 k3 @' a0 U C$ a" p& i; {
- }4 y. R# M4 ~: A1 \ e& J
- } else {
' a6 h# O& e% N$ Q, V4 Y - Serial.printf("[HTTP] GET... failed, error: %s\n",
& g3 V* A) M& k1 h7 {2 f% z7 o - http.errorToString(httpCode).c_str());* Z- `7 w8 D6 F, [, Q3 O$ n* q5 Z
- }
% ]( z$ o, u* l& w2 V - http.end();9 h8 ^; i c( O G7 m) [
- return "";
3 g* h. L) \6 Q9 F3 Z - }1 @; v. C& t1 {& ?5 f+ r5 p/ ~' x" u
- }
/ E. I( H! X+ V8 U' Z - void mainAction() {# t& ?% z3 Y: Y
- // 发送请求
4 r/ ^$ Y( V! F$ s; v - doGet("http://google.cn");$ J1 P) _9 |8 p; M
- }7 k4 l# x/ K5 B/ n) ?) K1 ?
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