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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 H. q6 r6 i# w" f; p- #include <ESP8266HTTPClient.h>0 l% f8 s6 g& k! H8 o( E( A
- #include <ESP8266WiFi.h>; C9 f8 T; w7 C' R9 G
- #include <ESP8266WiFiMulti.h>/ g5 |6 l9 Q: s7 ]) N; d" ?
- #include <ESP8266WebServer.h>0 T% R- ~3 z1 U( @5 v O
- #include <arduino.h>
! D7 s4 i9 ~' v2 ]& L* | - ESP8266WiFiMulti WiFiMulti;+ H. Q, r. E. j, r" K
- ESP8266WebServer server(80);: L, H5 d% r8 N c& V( s2 o1 V: O
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";' D: x8 y) d( ]6 o" h% u. ^ b
- ADC_MODE(ADC_VCC);
8 Z, S7 u, w ] - void setup() {
0 k& O: r4 I0 W7 I+ {8 w, ? - Serial.begin(115200);
2 p" Q& s9 L3 [/ p7 m% J - Serial.print("\r\n\n");
3 u8 a/ Q8 g' C3 M" E; e - pinMode(2,OUTPUT);
, f% D8 }6 L: _6 Z. l4 a - // WIFI
! S& ~6 d: V# N8 A- ~2 p - WiFi.mode(WIFI_STA);4 G/ B$ a4 p" |8 n' X- K4 I5 `! Y
- WiFi.hostname("Sparkle");
4 V J& o# q8 m( z1 x. u - WiFiMulti.addAP("wifi ssid", "wifi password");3 a- ]5 ^- B0 w S, i. ?
- int tryNum = 15;3 S$ d3 B6 G; N) u7 F3 |9 r
- Serial.print("Connect WiFi");; C7 B" ?9 _- F( N
- while (WiFiMulti.run() != WL_CONNECTED) {
* D/ |2 q" S7 O4 P- N - digitalWrite(2,0);
: B! A9 N% h- R- Z - delay(200);7 y" E: S3 j& ~, O: @
- digitalWrite(2,1);' P5 A8 h0 F8 g! Q% |! h
- delay(300);7 Q* b: T& r, ~ p) w% x# _3 c
- Serial.print(".");- u; r( C* C- @/ V S
- tryNum--;) [9 W0 s _7 P( l2 K+ p. N+ ?- H
- if (tryNum == 0) {
2 @' M! O: m2 ~: L0 V3 c - // 1min
5 p: q1 R" _; r9 [8 w, r - // ESP.deepSleep(60e6);1 u% Q, \/ ~5 e+ ?$ U* g3 l' X6 m
- ESP.deepSleep(0);
9 c% q, Y+ G4 P x* b k' r - }6 S% O3 Y0 W! k/ T- @
- }
$ C# A# E- n. \' O - Serial.print("\r\n");9 F! k# o$ |$ m- r6 ^2 ~) Z
- digitalWrite(2,1);
# |+ J" R' v" `: c, G - Serial.print("IP address : ");
9 z2 I7 n b! K" a; L2 { - Serial.println(WiFi.localIP());
# m2 {1 J1 ]$ |+ n5 v/ n - server.on("/", HTTP_GET, [](){
1 S( R4 I, H" l$ W( z - server.sendHeader("Connection", "close");( n( }' u! f$ m4 f
- server.send(200, "text/html", serverIndex);6 m4 l k- o2 i# B" D6 }7 p) S
- });8 F$ L( e5 s2 ?" T* [
- server.on("/update", HTTP_POST, [](){; g. U, C: Q( g- Z# l
- server.sendHeader("Connection", "close");% c& E U7 |. f6 o" l1 ]8 [
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");2 O' L- G0 d3 N" Q0 [* ^% c
- ESP.restart();! j7 e/ r2 r% k$ Y: |: O! ]" L) h
- },[](){
# t( X7 b/ O1 c5 \ J - HTTPUpload& upload = server.upload();
7 u2 ~ T# U1 [# ?9 |. o4 N9 U+ m+ N( d - if(upload.status == UPLOAD_FILE_START){
4 |+ ^) ?8 v! T4 T" [/ j - Serial.setDebugOutput(true);1 t7 T6 q0 c% j$ N
- Serial.printf("Update: %s\n", upload.filename.c_str());; Q8 p4 I, m& f8 u, r
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
& N2 Z5 {) k+ u' ^ - if(!Update.begin(maxSketchSpace)){5 T, u6 E' p2 L. M, C l
- Update.printError(Serial);
" l& f# \* |4 N3 G - }( @$ a0 H# ^$ s; ]4 K; I' ?
- } else if(upload.status == UPLOAD_FILE_WRITE){ ?( m& q9 G" {
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
" ?+ O- h" ^$ s) U7 W5 X - Update.printError(Serial);- p* l6 k2 C7 h! g( W& W: A
- }
+ M* h! ]1 t+ c8 y - } else if(upload.status == UPLOAD_FILE_END){
) Q7 g% k+ ?$ W B0 U6 t - if(Update.end(true)){: u O9 D3 V2 }* c, z) Y
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);& w P5 ]" N( m3 |. f
- } else {, ]1 A. G3 a3 C* Z) }% F: Y3 u
- Update.printError(Serial);
. W9 e- s% @# U8 F# B+ h3 x9 y - }2 |5 n! M5 X4 H+ D8 ?2 i
- Serial.setDebugOutput(false);, d- |/ d6 Q9 Z3 P" q& d
- }+ m _+ Q5 A0 Z/ ?
- yield();
( o9 F6 z$ p- [" ] - });
" U7 e( n/ h$ e; D% L -
* a, D" i8 Y0 f- g) E - digitalWrite(2,0);' s. y- W, B) j- J- d+ C$ L
- mainAction();
6 S$ X( M- _- z# |4 A9 h - if (digitalRead(0)){( x* J, T/ G0 e, I8 e
- ESP.deepSleep(0);
/ V, P2 H/ B% z - } else {
4 V. I, m% M7 V - server.begin();2 ]- B; x6 X( B) L
- }
3 R" y( \1 q# E1 Y% X - }
" g, f; H! y! F% a3 M - void loop() {
7 X; `. E# V+ s* ? - server.handleClient();' y/ ?6 E! E, u4 s6 m
- delay(1);, \/ y& z# Z: ]6 O
- }
" j, W+ u5 h; o" @. m5 ~6 G - String doGet(String url){
% k/ P& }! `, W+ p: O - if ((WiFiMulti.run() == WL_CONNECTED)) {
) c# z) E! c# d9 p& \- W - HTTPClient http;. S/ k# k( N! g
- Serial.println("[HTTP] begin...");
0 A& M1 r% H" I, R- W - if (url.startsWith("https")) {6 B. G* B n8 D9 C2 b/ H1 N& Q( O
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
5 r9 q& v. ]4 X$ E4 y - } else {* m3 K% `+ q9 i; x
- http.begin(url);
1 ]7 r% G, ^4 O - }
; O6 ^0 g( U% g/ f+ W0 ^) i' @) I - Serial.println("[HTTP] GET...");' ~) k& y. u7 }. m- \, N1 F
- int httpCode = http.GET();0 T) B0 m0 n, g T2 I* L2 o
- if (httpCode > 0) {/ @1 o1 I) K+ z0 B3 o
- Serial.printf("[HTTP] code: %d\n", httpCode);
+ w. l4 I: M. f - if (httpCode == HTTP_CODE_OK) {
$ o# d9 l" h0 @! x& e" i" t - String payload = http.getString();& L4 R$ _! E1 O; J
- Serial.println(payload);; k& I4 Z/ U/ i
- Serial.print("\r\n");$ \1 E+ o" K. s- ?6 d" q, I. a) O
- return payload;
) W; U& h8 R2 {- H - }
2 {& g3 f4 p0 @ ^ - } else {6 k( `1 F7 p! @
- Serial.printf("[HTTP] GET... failed, error: %s\n",1 @8 R3 ~- I9 T8 C5 m
- http.errorToString(httpCode).c_str()); D+ V o% N/ Q h* F. ^. I2 A
- }' L4 @( u, ^) i" I, k, o, {
- http.end();
6 B8 H/ W n, _1 o3 v( s - return "";
- q. F# ]1 f7 R6 P - }7 E3 A8 F2 C' U6 y% Q
- }
- e, _& B. m$ b2 a) W - void mainAction() {
3 n# S1 Q" q, v8 Z8 K - // 发送请求) H$ v0 |! g" [, A+ g0 C8 i4 N W
- doGet("http://google.cn");8 f* t' ^( l' b6 b1 x+ h
- }: E" s. F6 e5 I' _. v2 S4 n0 S% a
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