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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)
' b$ c: O4 B0 j- #include <ESP8266HTTPClient.h>
+ t$ m) ^/ N1 \" t2 {/ }. v* y - #include <ESP8266WiFi.h>$ X" l* x+ y* m' Z9 U
- #include <ESP8266WiFiMulti.h>
, v! j X3 c5 h! B! |) o - #include <ESP8266WebServer.h>! {) Z; W+ d: ^2 X
- #include <arduino.h>
7 V0 q/ O0 A% R X - ESP8266WiFiMulti WiFiMulti;4 y. z5 c0 S0 C8 D( T8 G5 O# x! R
- ESP8266WebServer server(80);
i( F" _$ l3 j) |8 R - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";9 S [# o, C6 H( h
- ADC_MODE(ADC_VCC); O- A; s* Z+ d' I2 L/ d
- void setup() {( x0 j* C: Y% F0 k# ] p" P P c5 _
- Serial.begin(115200);+ U9 T7 T1 B: N- `' S. ?) Q2 j
- Serial.print("\r\n\n");0 o/ u: a. O W8 [& w, w" t
- pinMode(2,OUTPUT);
! n8 B* H1 T9 W& @8 X n - // WIFI; }0 D, H! N" ]2 k6 ~2 z/ J
- WiFi.mode(WIFI_STA); m" H! @ X3 H: v, O# E1 q
- WiFi.hostname("Sparkle");: ? t {3 o' H% b" r
- WiFiMulti.addAP("wifi ssid", "wifi password");
' W `1 T8 K6 X8 w2 N6 U - int tryNum = 15;
+ e: M! K" Z; m+ \ - Serial.print("Connect WiFi");* S T- L( a, B. h6 b* d; s7 h
- while (WiFiMulti.run() != WL_CONNECTED) {
# p+ {2 o! Q! P* n1 q - digitalWrite(2,0);6 F0 T, q+ ?1 q7 H% I
- delay(200);6 i w: u" G' ^7 d2 Q
- digitalWrite(2,1); z. Z0 A% i6 h# o7 b' h5 s, v
- delay(300);8 N/ [. Y2 w7 o6 J* q
- Serial.print(".");
. w7 A/ R7 X t6 {1 a - tryNum--;! U4 F8 ]) z+ }7 A+ F
- if (tryNum == 0) {# M; o" X) h9 m# g& h
- // 1min
S" p* n( @1 ~8 Y# w - // ESP.deepSleep(60e6);4 v5 ~5 Z/ }4 B# g& R
- ESP.deepSleep(0);
: E. P/ w( `) g- M' { - }
# V+ @: [6 a: [& J; e0 d% k$ P - }% l7 Q. O2 _8 {1 o
- Serial.print("\r\n");
3 j. E7 \0 |# i0 m5 ]9 {, M - digitalWrite(2,1);
3 x' `! ^, X2 E9 N, T: t - Serial.print("IP address : ");
8 l6 w$ a$ z: f" z8 Q - Serial.println(WiFi.localIP());) I. ?- A1 U( E2 K8 A' s3 [! S9 m0 m
- server.on("/", HTTP_GET, [](){/ a9 o, a9 l' I9 Q; x2 `
- server.sendHeader("Connection", "close");
7 C! Q7 S( [2 e( [ - server.send(200, "text/html", serverIndex);( N' Y/ I- i* J# {) A5 U
- });1 X# S2 Q+ P) R* F
- server.on("/update", HTTP_POST, [](){
4 d: @6 Y. k/ ?! h- V# u0 v* r2 ^6 r - server.sendHeader("Connection", "close");
2 H1 B& }! W; X* W! g6 \4 r - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");9 v* T1 x7 }5 j' Q) j: T, ~
- ESP.restart();
8 c. [+ e# p. w; R+ [ - },[](){+ M& b% Q* b4 U* X) ]" ~; f
- HTTPUpload& upload = server.upload();2 J/ V, Q' }0 H8 j. w2 e0 Z
- if(upload.status == UPLOAD_FILE_START){
7 a2 b8 S5 k5 r2 J( x - Serial.setDebugOutput(true);
- i3 Q& I& V( l6 H* g - Serial.printf("Update: %s\n", upload.filename.c_str());4 C0 _( d% X# L% A8 \
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
) ]3 C6 F4 h9 } - if(!Update.begin(maxSketchSpace)){( K8 ~; _. Q8 S% u8 u3 X' _* S6 n/ ^. t
- Update.printError(Serial);
9 ]2 S* S8 _! ]7 ]+ O( ^* [; H - }' W' W5 o8 }; O5 u( h4 b
- } else if(upload.status == UPLOAD_FILE_WRITE){
; T* F/ R2 Q; g+ ^! x+ ^ - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){+ ], O: {8 _# w2 [2 E
- Update.printError(Serial);) ]! [9 ?/ k: I4 m0 a: y
- }7 L6 ?: x) l, U& h7 ?& V, r
- } else if(upload.status == UPLOAD_FILE_END){
X9 R/ w! B3 a0 L0 h - if(Update.end(true)){
9 o, V+ D1 k$ n( b% c; _+ C2 S3 J/ H - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
7 C$ S. ]# x+ k4 _: i - } else {
q& h; k1 r, {3 e - Update.printError(Serial);
: h1 J8 Z- s1 X8 r, d - }
$ u: ?" x: b3 X( B) a. E0 f - Serial.setDebugOutput(false);/ X' m1 S8 t* n! Z' x' x
- }
# @$ u+ D% s8 ~& s& w( D# H - yield();4 ~! B/ M/ s5 L* I0 L7 _( `
- });
! z' ?. k, ~: m# Q" n6 i -
' Z# R. ~4 Z) A; { - digitalWrite(2,0);
' `0 i& D6 ?/ `4 H" o3 r - mainAction();
* z6 }! b4 [0 d/ J `0 T( T- T8 j - if (digitalRead(0)){
' _, d7 Z9 B# \ f - ESP.deepSleep(0);3 h5 |. a2 v [+ L" x" w
- } else {$ `' O% |! y6 K2 c+ j
- server.begin();
9 M* K0 Z5 V0 h* s# [: n - }& f8 `& p* ?* h c2 U% z- d( j
- }
8 \- N% Q1 j9 v( r& r - void loop() {" w$ y0 F% y* q8 L& }) y# O) ^' f& m
- server.handleClient();# O( X2 d# f; x3 @- F1 h" C
- delay(1);4 ]4 L2 X8 S& T
- }# e4 T9 c; m0 y2 D1 j" o4 j
- String doGet(String url){
" ?5 k1 H: O+ Y" Q - if ((WiFiMulti.run() == WL_CONNECTED)) {
3 D9 M4 k" x6 C7 T - HTTPClient http;
& C# n5 m( i3 v0 g3 C - Serial.println("[HTTP] begin...");
7 d( E6 ~ s2 W& x( x" [+ \ - if (url.startsWith("https")) {
" q( D% x4 k: N9 k$ D2 d8 z - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");6 r0 j) }, w1 ^' p% i X3 e2 G! W
- } else {* v* e% U+ f- o, d1 a
- http.begin(url);
# Z- t' H8 H6 U" r7 t4 D; i - }$ w' I9 d# }) J& }0 o8 w
- Serial.println("[HTTP] GET...");. h# @5 G K) f' \1 N/ l9 L* F
- int httpCode = http.GET();( T1 G% ~5 K6 h7 M1 D/ C
- if (httpCode > 0) {+ d5 V" m: O: w& R4 o
- Serial.printf("[HTTP] code: %d\n", httpCode);- G1 \( {! U- |' W% U% R
- if (httpCode == HTTP_CODE_OK) { T6 v7 ?' n# t; W* ?
- String payload = http.getString();
" H* U, t( o+ L, } - Serial.println(payload);
$ ?( |, [+ G* q. z4 C8 i# m! F - Serial.print("\r\n");
5 F0 |) f0 |; E0 E+ p6 | - return payload;
& u; V; l( j4 R! s7 L - }
9 ~ S& }& B$ L2 O$ _ - } else {
, i e6 [6 _2 b( Q - Serial.printf("[HTTP] GET... failed, error: %s\n",* K7 r6 R+ ?2 o1 ~3 {! Q3 D2 J8 l/ T
- http.errorToString(httpCode).c_str());
$ e7 U8 m" Y3 C! ~# b - }
4 N! }* l# j+ s - http.end();# C5 |! R% N' K- e( J: \6 a: u
- return "";1 v% l M7 w4 q* o" D' F( e
- }) u6 Q5 K$ ~0 j& t# c0 ]4 k* N& ~
- }: x" V8 y) `: e& l! b: J
- void mainAction() {$ i3 ?$ U j+ Q- n
- // 发送请求
: ~& b, k1 A4 o$ R! X - doGet("http://google.cn");& |) @" g: o! k" j0 x* n2 M! L; S
- }
2 F3 a7 P! u! }
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