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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)
: x' y- y! J6 ~, p# c- #include <ESP8266HTTPClient.h>
* A5 I, z$ t0 V' N, F' |9 ` - #include <ESP8266WiFi.h>
; \$ `$ g/ X4 K2 } - #include <ESP8266WiFiMulti.h>
/ U4 ]: b& [" u' N) a2 U* j! [2 Z( x - #include <ESP8266WebServer.h>+ E% Q/ U& d r0 I" l+ z, t
- #include <arduino.h>$ ~7 U+ }8 M: _: J) C# y6 K+ i
- ESP8266WiFiMulti WiFiMulti;
4 ~ c- L% c2 Y+ s n* @" j4 v - ESP8266WebServer server(80);
5 c3 e, U0 c7 F% y; h& n - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
/ n1 ^. M6 ]: v+ { - ADC_MODE(ADC_VCC);
" p1 \7 K3 g% }# k; T e2 q - void setup() {
U& n9 t1 D5 N$ S0 k - Serial.begin(115200); Z% a+ ]+ e7 q! b" Z/ N" n
- Serial.print("\r\n\n");
/ Q1 F$ {% p- ~$ D0 L" D7 { - pinMode(2,OUTPUT);) T$ O( {: o8 r0 \ V* ?
- // WIFI
0 F, q( j7 R, D1 n% |4 `/ q - WiFi.mode(WIFI_STA);
" k: q, H$ ?" O9 |, ^+ _% [ - WiFi.hostname("Sparkle");* A& L7 M$ ]' l4 p
- WiFiMulti.addAP("wifi ssid", "wifi password");
* ^' O m: k1 w3 T# i* n - int tryNum = 15;
. p7 i' @+ K5 Z' v3 D( d, F - Serial.print("Connect WiFi");
# l1 c3 X( S( @ - while (WiFiMulti.run() != WL_CONNECTED) {, C! C5 R( I9 p0 J
- digitalWrite(2,0);
) s# P& L/ K+ l! A - delay(200);' T1 S, B. Y! M( z# Z
- digitalWrite(2,1);( B+ _3 G" I5 J$ F! B* _' b* i6 c
- delay(300);8 s ] s- f x% F1 V% _4 I8 L9 u
- Serial.print(".");( N( F, B- F6 l
- tryNum--;
- D! D/ b6 k( {+ G - if (tryNum == 0) {
6 J% S1 B9 V& M' S$ p1 D* G2 Y - // 1min' h: S6 J2 i7 N
- // ESP.deepSleep(60e6);
7 U# F1 E% N( x" J7 H - ESP.deepSleep(0);
9 K& U' i3 t5 l; |! N - }1 z& m* v4 k5 z; d
- }
5 m* j7 x* ]8 C! G& S5 e3 K - Serial.print("\r\n");% n# e% C* N7 ~, O! m
- digitalWrite(2,1);
" ^; E2 [9 S! Q9 l" L - Serial.print("IP address : ");
4 @6 U% v( T$ H* l) O6 w; H5 N - Serial.println(WiFi.localIP());. y" a; R. s k6 @ R; l, H5 \" \
- server.on("/", HTTP_GET, [](){+ T1 R! v1 O$ t+ O0 P/ Y
- server.sendHeader("Connection", "close");
; m: _5 y9 Y: i- Y - server.send(200, "text/html", serverIndex);- Y/ R6 K" e" j) w% I) k
- });
$ S( v/ y+ F+ S8 T, S& X - server.on("/update", HTTP_POST, [](){
6 q+ D( Y. S! A/ u+ e% H: R U - server.sendHeader("Connection", "close");
- I+ `6 C- E( b- s( i8 D( I - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");6 [) k/ N8 a+ ?" _% r) n/ d
- ESP.restart();
5 h! h9 l+ P: C4 X1 h' g6 x - },[](){: r' t. a: N" _* u$ f& C/ f. F
- HTTPUpload& upload = server.upload();: D) V) K+ _' g& D
- if(upload.status == UPLOAD_FILE_START){ ^3 i9 U! h# Y# _, I
- Serial.setDebugOutput(true);
) q9 E8 V1 ?1 p0 L/ X6 o - Serial.printf("Update: %s\n", upload.filename.c_str());* D7 c3 ~+ B j8 Q! S3 G' i* m, o
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;+ K1 w; N8 R5 U, g4 A/ h( @
- if(!Update.begin(maxSketchSpace)){
& m# R$ W" r J0 |5 f& r, _ - Update.printError(Serial);
& {! {6 g7 R0 g - }) j* J/ H/ v7 p7 m" h+ I* R2 U3 z
- } else if(upload.status == UPLOAD_FILE_WRITE){( C/ a7 Q5 e& J( B' ]
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
5 @* R- v3 g! @) \5 i2 c. p - Update.printError(Serial);# r$ u( ?5 P# Q& h$ Y
- }2 h8 W2 l% H6 ]. D+ O |+ B& ^
- } else if(upload.status == UPLOAD_FILE_END){
, a, }' S) l. I; t6 e& O - if(Update.end(true)){
3 X( B" e) Y# k: _$ k% s/ | - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);' c u% h- l& f0 z
- } else {% g, C3 j9 R% U4 q6 }- _% ]
- Update.printError(Serial);7 \7 J% n/ u; ~! O9 i
- }
$ |; T- p1 L" R! h - Serial.setDebugOutput(false);
2 W v9 j+ G p% _+ v6 P; U; a% Z+ z - }
- ]# w3 J i, b8 U4 H - yield();
: V4 F) C0 m) Q, u# j) E - });
/ y" E/ I. n1 n3 T$ r2 x2 f a" H8 |) f -
+ r9 }8 i! i/ o - digitalWrite(2,0);
7 Q) e1 P6 r8 Y; `$ |% u. n - mainAction();4 {0 X R; r7 Q5 D4 _
- if (digitalRead(0)){* p! A- d( E' V. J' I% P% V
- ESP.deepSleep(0);
! ^/ R& s) a/ t6 ] r - } else {3 _% l" J! b" R4 _+ _8 p9 Z- o
- server.begin();
y4 w' E# }6 p3 A, ^ - }) [$ e1 D. i5 V
- }
6 R, M! p+ W$ Z$ w$ `% k - void loop() {) W- p8 \8 X3 v! Q( C8 `
- server.handleClient();" O5 K- t" R( ?& F0 o- m! w$ q
- delay(1);4 l4 A0 _1 K- V8 Z6 e8 F2 n
- }
4 f0 h: `; m' d - String doGet(String url){
6 s4 P# X4 z" e - if ((WiFiMulti.run() == WL_CONNECTED)) {
4 G+ C, _5 Z, G# Z4 b - HTTPClient http;
: F: x0 ^' q( o4 T# L! A - Serial.println("[HTTP] begin...");
- {9 Y0 h$ L# k1 Z$ l5 j3 y0 P2 v - if (url.startsWith("https")) {% j* t9 E& i% O8 u' G: p3 j2 y7 H
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
+ j/ P% o9 b" {" ` - } else {2 j) s+ a6 Y- x, r' X2 w) H5 m
- http.begin(url);
, k) F( P1 M- `6 h5 z - }
2 d% ~ N7 y# F4 m - Serial.println("[HTTP] GET...");
* A A" Q! x: R: ] - int httpCode = http.GET();" o! K0 c8 r1 {4 \0 }/ p
- if (httpCode > 0) {) ^" A. q' j1 {- N
- Serial.printf("[HTTP] code: %d\n", httpCode);
* }, Z0 Q6 R0 g% r ` - if (httpCode == HTTP_CODE_OK) {
! n5 o- \ ^. ? - String payload = http.getString();
/ c* c" y1 e$ J3 N# m - Serial.println(payload);# y; V; N: T! G* N
- Serial.print("\r\n");
) ]2 X0 C. [7 {4 _% m - return payload;( G+ Z, x% u" q/ Z" \( V) l
- }; n/ J( g2 _! L/ a- S
- } else {) Y* A, J2 l) F* J9 p6 l/ C' V
- Serial.printf("[HTTP] GET... failed, error: %s\n",' G1 W- j. r: A' v
- http.errorToString(httpCode).c_str());
1 A9 h0 o: ^2 S* ^* [1 ] - }
, \+ M+ R! d. r I, V - http.end();+ O2 ~, T; ?. Y# l" S' T
- return "";4 a, i" e6 j4 ~8 X5 \8 B$ ]
- }4 W. v/ J8 a d3 K5 t2 g. ^
- }
; j/ m8 |2 Z& f8 F - void mainAction() {0 k7 W- V/ s. Q+ `
- // 发送请求) ^3 Y1 t- b( I
- doGet("http://google.cn");6 a3 {3 E& O( P& H( |; X
- }
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