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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)
/ a- B$ [0 _% E- #include <ESP8266HTTPClient.h>( G) l- F; f2 Z& @# T
- #include <ESP8266WiFi.h>
! B# T+ f! @, m7 U2 q6 j: M - #include <ESP8266WiFiMulti.h>
8 u8 I+ X0 S6 M, U+ @ - #include <ESP8266WebServer.h>3 F* k" ?2 L, {8 h& J" ^: p. y8 D' S
- #include <arduino.h>$ S6 x5 I3 G; _4 p6 g7 F) t2 J
- ESP8266WiFiMulti WiFiMulti;6 F0 n4 Q$ z- V
- ESP8266WebServer server(80);' n4 P+ D/ K+ s7 o
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
7 j( G: a" ~' ~ - ADC_MODE(ADC_VCC);
) D% [1 V' A1 g: I+ e2 N - void setup() {
9 L# D+ [! a; ]% ^* V& { - Serial.begin(115200);' i6 A% E* p! Y
- Serial.print("\r\n\n");
! Y7 |! _+ z* G2 r0 x - pinMode(2,OUTPUT);
2 Y; S! ^$ o5 X/ |4 ^& { - // WIFI
& i% B' B# F' i8 A1 g0 H( Y/ V - WiFi.mode(WIFI_STA);
" j" H- N& R* T5 w - WiFi.hostname("Sparkle");
9 D/ s% V' i; l2 c3 A3 s - WiFiMulti.addAP("wifi ssid", "wifi password");9 F. Q. R6 x4 T& _5 R4 J* W, J
- int tryNum = 15;: C; c: y2 ? R8 v0 |
- Serial.print("Connect WiFi");* n* W6 x4 S! P {
- while (WiFiMulti.run() != WL_CONNECTED) {$ Q2 z8 C3 G, _: J
- digitalWrite(2,0);
5 [ M- t M; ?: F: ? - delay(200);
& K( r: c( n, ^' W - digitalWrite(2,1);
$ q6 p' v$ W R" d1 {/ V) f: k+ s - delay(300);- q# E8 W& Z2 J! D: X! s
- Serial.print(".");
|' |$ ~$ @' G' k, z5 t) p - tryNum--;, Q" W* k& h o* c$ @
- if (tryNum == 0) {
6 F2 [( A7 ^$ M; ?( |4 b5 Q% f - // 1min7 T" x4 D) i( Q- D7 w
- // ESP.deepSleep(60e6);1 z9 X: [. z, a& u: o8 F/ r6 A. J2 o1 j
- ESP.deepSleep(0); |, m; J3 I9 ^
- }
- K2 ^* p' I0 G; X1 d/ q1 P' j( v - }! P+ i. l* j- {5 k% M; C
- Serial.print("\r\n");
! p! R; k5 L |8 J - digitalWrite(2,1);
. n% x4 Z2 _4 ]* l* Q1 B g# M - Serial.print("IP address : ");4 S" ~1 z% B# X% h% d' r
- Serial.println(WiFi.localIP());
8 M) @/ G: y9 E9 K( M - server.on("/", HTTP_GET, [](){" k- o/ B9 J. F: e$ i9 w3 j; w
- server.sendHeader("Connection", "close");8 Q' ]: h5 C- [1 L3 m' N: ]) r
- server.send(200, "text/html", serverIndex);; q* n- z+ P, u* c- K; P0 b2 O
- });% n" x- [# f& o# q+ U, K
- server.on("/update", HTTP_POST, [](){
7 ^1 T- K# H( r- N* l. ` - server.sendHeader("Connection", "close");' @5 _% {, z; M1 P" @5 k9 q ^
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
: K+ Z4 F8 z8 F& a - ESP.restart();
& z" N% ]$ s# R) U9 u/ a4 X - },[](){4 L4 f4 Z" }, F9 g9 B: ^, _6 U
- HTTPUpload& upload = server.upload();: R- Q! T/ X; t; V
- if(upload.status == UPLOAD_FILE_START){
2 w% ~/ D% ^9 q8 V - Serial.setDebugOutput(true);$ Z j! v" q: A3 ]! L
- Serial.printf("Update: %s\n", upload.filename.c_str());, [# @" R* z# I- b* c4 i" `
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
8 i- P! k/ S9 W) t - if(!Update.begin(maxSketchSpace)){
1 {4 v# w G9 d! J9 r, y# z5 L( K - Update.printError(Serial);/ Y" l9 w$ e5 M y. }/ E
- }3 }1 G; t: Y( ?, ~9 n
- } else if(upload.status == UPLOAD_FILE_WRITE){( q' D7 x2 F( \1 h% g
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
, Y2 B: @# m6 s+ U4 P4 T5 S - Update.printError(Serial);
/ Z% Z: f! `" d) Y" y( p - }: K; [3 ^( c% ~8 b0 e7 e
- } else if(upload.status == UPLOAD_FILE_END){0 {+ E7 X. O% ]' r. d
- if(Update.end(true)){; `' o- [' ~5 w' A- `# o' g( u2 _
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
5 u' d- r( Q4 L9 k+ m# x - } else {3 q' u7 d" [0 \2 A- u; U' ?3 O
- Update.printError(Serial);
0 B- `5 c6 o9 K5 H" b, V" `, m5 h ^ - }
8 \+ p2 R7 v+ z7 L( J - Serial.setDebugOutput(false);! k5 ^$ P7 D7 s5 n) g: D, D8 J% |
- }# @. I% u* q. S; V- v
- yield();
9 D* y3 u* x0 n8 |; {1 P - });7 X# g( |0 b6 K& J% l" o9 H
- 0 `3 ?6 O& q4 B- W6 n5 v
- digitalWrite(2,0);# p: k. z _" z/ c% m9 b6 c
- mainAction();
8 Z( B; \( w1 t$ E - if (digitalRead(0)){
# G3 j- G* k7 k5 ]( ?! {( Z" c - ESP.deepSleep(0);3 Q$ R6 Q4 ]- r/ u+ u
- } else {, Q7 r# H" j; t% v5 ^! U" S
- server.begin();
: W4 W- b! C# r! @& F2 v$ g4 p( I - }1 j% _! u1 S6 Y& g
- }
& J! K6 s' x; [ F) x1 X' w6 e - void loop() {8 x+ H! b' F* a0 d* Q
- server.handleClient();/ w2 m. @- {, b3 R6 p8 m1 O' d+ l* G
- delay(1);
! R: T3 b% w0 s, i- ~' ? - }
5 Q# V* w8 i% K) f% ]5 F) ]) w - String doGet(String url){
- C, d2 p m/ b! r) m7 G/ e - if ((WiFiMulti.run() == WL_CONNECTED)) {
+ p3 G- O0 r, j7 V; R! Y; b - HTTPClient http;
( R) ^" Q4 @8 Q/ d, R - Serial.println("[HTTP] begin...");
: v, ]9 Y. ` y# Y/ d/ f; k - if (url.startsWith("https")) {
) Y% H, M8 I `5 M) b1 n. f: X - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");9 S+ f" a& ~ A: C( W- p
- } else {
) \- w2 M" V; C2 x% W - http.begin(url);& P8 h5 g+ p& k# O2 v# ^
- }
8 I* h! H1 ]* F. u+ C( V+ e2 k - Serial.println("[HTTP] GET...");
3 w+ C0 n! L$ t- d4 [ - int httpCode = http.GET();9 m s9 e( T/ m7 ?& a
- if (httpCode > 0) {
# g5 s1 o9 o0 ^7 n3 V7 V - Serial.printf("[HTTP] code: %d\n", httpCode);
7 x6 L$ ^+ n0 {) ?4 x# J - if (httpCode == HTTP_CODE_OK) {
7 }, ~ b% g0 t }+ L - String payload = http.getString();
6 Y4 K* B$ l' R# O+ Q9 ^ - Serial.println(payload);
# _% H/ m6 F4 J - Serial.print("\r\n");
1 R' v6 y+ t0 w - return payload;
8 u- ^; E2 O' A* c5 ?7 E8 Y0 m - }; i4 {3 G2 F9 E+ L
- } else {
e9 r8 [% [& U- |0 R) U - Serial.printf("[HTTP] GET... failed, error: %s\n",
0 R: B, e' r' ^, P! u" F - http.errorToString(httpCode).c_str());' ~* h6 |7 |7 x3 ~
- }0 Y) g) V, O6 ^: H$ `& A
- http.end();1 `% X* ?9 S+ \$ i/ j# K1 X
- return "";$ d- x: u4 C/ C, |& w
- }
* R% U, S& `$ i5 C6 ~! b - }
2 [# \) H4 [, G! f% q - void mainAction() { \) A; u- p8 D" O; E' C
- // 发送请求+ |+ h% e' g( {0 v$ S8 M
- doGet("http://google.cn");
# G9 O, ^* u+ N, g - }( r! A: y3 q' d% B( a
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