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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)
& _) I; k$ m1 o0 \) `& M8 X- #include <ESP8266HTTPClient.h>+ L/ C% I+ `( E
- #include <ESP8266WiFi.h>5 I6 R9 o9 e6 J) ]" Z& }% E
- #include <ESP8266WiFiMulti.h>/ J* @; t0 x+ @6 w: B
- #include <ESP8266WebServer.h>4 D7 @9 n' g' \: {" u
- #include <arduino.h>
0 y3 @' |2 ^6 p' J& H - ESP8266WiFiMulti WiFiMulti;
% p% Z( O. `+ [7 g2 J5 \ - ESP8266WebServer server(80);2 y I8 E( W' `0 _! V- \( G
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";- _: ]# t0 J' x7 p
- ADC_MODE(ADC_VCC);
% P' c* S3 c5 w( }# q - void setup() {
Z7 C8 E' Z4 r" E: F1 }4 f5 u/ a - Serial.begin(115200);
. f2 O: W5 X2 d - Serial.print("\r\n\n");
9 r7 o3 O( O8 m& |8 l: }- [ - pinMode(2,OUTPUT);0 Y0 i. w7 \# v) ?8 Z
- // WIFI
y& u/ c, J \" D - WiFi.mode(WIFI_STA);8 S8 S3 }- O8 n: n7 Q7 h5 G. R
- WiFi.hostname("Sparkle");
0 c( M! r M! b3 h+ @ - WiFiMulti.addAP("wifi ssid", "wifi password");
2 r# b4 H$ m g - int tryNum = 15;
' p2 ~2 v# q* ^5 z, W6 F/ T" d - Serial.print("Connect WiFi");) P, c9 u% w W) P* a" f8 S
- while (WiFiMulti.run() != WL_CONNECTED) {) v. {. t* j- q4 K q2 |3 ~: P
- digitalWrite(2,0);: h) Z: R9 Z9 v4 J
- delay(200);" O/ h3 q* ?* t! J
- digitalWrite(2,1);
. k+ U. @$ Z4 a& j) Z. T4 O - delay(300);- ~) I0 [6 N% V7 t2 y, k. V! F
- Serial.print(".");' h0 M" K3 H4 o. A1 a3 z
- tryNum--;0 o5 e Z0 L) C4 {) \4 Q8 A% ^
- if (tryNum == 0) {
( B7 p, d9 V3 @2 A - // 1min
) X. E ~( H. |2 g - // ESP.deepSleep(60e6);& t8 z$ ?, A& x: B: p
- ESP.deepSleep(0);1 Z' M. E- e6 E D
- }7 ^0 V) V9 b- W4 J& w6 O# X( y& I
- }1 [" w: L9 C U5 ?! H) u
- Serial.print("\r\n");' g1 n; T/ o! W# `7 L3 `- `
- digitalWrite(2,1);- f' d/ C- @( ~. R: s) o: B* a# A
- Serial.print("IP address : ");
3 o! u+ a4 Y, p! i9 `6 s - Serial.println(WiFi.localIP());3 W: s2 c( p! U, r9 S3 _
- server.on("/", HTTP_GET, [](){' ]* q' m4 N8 O# o9 O! S* p! n/ ]/ D
- server.sendHeader("Connection", "close");
7 b, |5 C; v# H2 N% l3 P% Q- b - server.send(200, "text/html", serverIndex);
2 C% p3 E5 _& G h3 C/ [ - });
* o* M8 ^' J. h - server.on("/update", HTTP_POST, [](){5 ]% N. ^% X. V( R6 W
- server.sendHeader("Connection", "close");' P) P8 P4 S; K/ [/ I' Z
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
" Z3 `1 l, u: ]8 L( @! S6 I- _; F' I - ESP.restart();3 U( `. i( ~1 Y# [8 J
- },[](){
/ F8 L9 \! ?" R7 m6 i" t& _/ ^; m1 B - HTTPUpload& upload = server.upload();: J0 b, Z( I8 H1 b5 l) n- e' ]
- if(upload.status == UPLOAD_FILE_START){
$ S2 {$ F5 q% K# s4 Q - Serial.setDebugOutput(true); A' f5 G4 N6 `; k" c7 J) V
- Serial.printf("Update: %s\n", upload.filename.c_str());
2 t1 X9 |2 q4 ?4 k - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;' y; M1 E( Z. L8 A( W/ E j
- if(!Update.begin(maxSketchSpace)){
+ F6 H7 n: |6 ~ - Update.printError(Serial);
/ I7 Z% B0 i4 l4 t- O7 ]2 e - }
$ W1 Y( y% Q2 j- n; \ - } else if(upload.status == UPLOAD_FILE_WRITE){7 W! |# ?3 N% B8 C! Y
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
' j( O4 @- A& {5 @8 q. m" p - Update.printError(Serial);
T! T8 `# e4 D' j# |" ?6 {& L - }
& U x' O+ F& [* Z! h - } else if(upload.status == UPLOAD_FILE_END){/ ~- r3 F5 x3 l3 F+ T2 r8 ]
- if(Update.end(true)){
9 Q4 i4 P8 k8 b; I# ~# y - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
4 k, s9 r9 w- x( f( h( P - } else {
8 D- Z$ Q1 }: c, k* v+ W" J - Update.printError(Serial); j- r; t& L# c7 w! Y ^* p
- }/ Q% A* s. \+ r/ I1 {5 R u
- Serial.setDebugOutput(false);: w% K; z/ t* [6 o, e
- }, F, w$ v. y9 j# }2 o
- yield();9 k: V. E/ _5 K7 U2 A, s! S8 m
- });. H/ V6 b8 n( N+ w, W
-
$ l7 f( O% M* @) K0 n - digitalWrite(2,0);
2 a( \$ l0 U$ }9 ]" q' V - mainAction();2 H, s6 x% Y- X8 E" u4 S6 f
- if (digitalRead(0)){
! x4 _ @& a( a1 L* g - ESP.deepSleep(0);, ]) {9 X$ z" C# C3 {" x
- } else { g% `. ~" C/ I' @3 T+ S/ b6 E
- server.begin();
2 S2 N' N* h/ g8 D5 F0 q - }
7 n6 F3 n6 O) k% O - }( f" b. Z. T; x; d5 f5 g; ?
- void loop() {
- U. q& s% L$ O' M5 r - server.handleClient();5 f' Y2 I, x/ W+ {
- delay(1);
9 M0 ?9 Q! ?$ L, n. _# M; A% I* q9 c - }
# I" e- R) @; v' ~: T* f - String doGet(String url){
, E% v9 @- T7 J - if ((WiFiMulti.run() == WL_CONNECTED)) {
, }- A6 T3 g9 K& j - HTTPClient http;; s* _9 G ]' L. b
- Serial.println("[HTTP] begin...");
# F/ v6 J7 u3 R - if (url.startsWith("https")) {8 H/ ]. c/ u/ _/ m) x/ }
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");% O F3 s0 o6 ?) X% |: r3 Y
- } else {( f7 C# F0 c# } d# \0 ~: d
- http.begin(url);4 D& K$ x/ n3 \, m1 Q
- }
. O; i. X9 `: u2 D - Serial.println("[HTTP] GET...");/ L. N" f* _; q" x; I
- int httpCode = http.GET();* X* m# ^3 {# [/ |, k; M! P6 ?+ _
- if (httpCode > 0) {9 T- W* v$ a+ b+ q% E/ A# z
- Serial.printf("[HTTP] code: %d\n", httpCode);/ d+ t% k! v8 J6 F2 _% Y
- if (httpCode == HTTP_CODE_OK) {
6 Z) q: r3 W; }- b - String payload = http.getString();+ q' w3 p. j( ^1 K2 a3 ]
- Serial.println(payload);0 s" ]2 h: g6 E/ ?' P( q0 e% M1 Y4 [
- Serial.print("\r\n");
0 Q/ q" _3 v& o( o, N4 K - return payload;, H. u7 \" t, F! L- x% J5 v
- }$ w5 T0 f, r# M0 h
- } else {8 L6 B F) w1 a! m
- Serial.printf("[HTTP] GET... failed, error: %s\n",& n% S/ v7 o3 Z2 z! a
- http.errorToString(httpCode).c_str());
! V/ s% ?1 {5 v0 j' c - }
! d4 Z2 [6 U( s7 r - http.end();& E* {0 C1 m/ s
- return "";
) z" F* n, a% g) i6 L - }
% D+ e% X8 {2 \# u+ N2 ` - }& K% |0 b6 r2 A: M3 A
- void mainAction() {
# X. p6 }9 n6 b+ o - // 发送请求
+ d6 {/ p0 v1 V! m - doGet("http://google.cn");
# ^! u6 j, B1 T. A+ B) \+ X0 \ - }+ r4 c- W- x6 ~, b) [# Z) v
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