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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)
8 \7 I. o a3 O" d% Y1 @- #include <ESP8266HTTPClient.h>+ _! E* C8 z$ g& z/ p
- #include <ESP8266WiFi.h>
q) w$ j1 S! A4 { - #include <ESP8266WiFiMulti.h>5 B% o9 M8 @3 Y- x1 S% y( ~. l1 W
- #include <ESP8266WebServer.h>
" `! [$ L( |" e, \ - #include <arduino.h>
% V' o* f4 H! j: P1 n4 ^ - ESP8266WiFiMulti WiFiMulti;
# ]# b( r* y- d - ESP8266WebServer server(80);
2 e) z+ A0 k0 p5 m W5 Y1 r - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
2 l9 z' F7 _* n& w - ADC_MODE(ADC_VCC);) U* W/ q! S; K; |" K
- void setup() {. C) O& l% H, B" D8 A- p
- Serial.begin(115200);
9 ]! X5 H8 @8 _& A0 C. k# u. Y - Serial.print("\r\n\n");
( ^: u4 c6 }- c5 h' | - pinMode(2,OUTPUT);
2 e u8 }- R* w6 @. V5 q" T - // WIFI
$ c2 ~& A# e' v$ F0 H l - WiFi.mode(WIFI_STA);
0 @, Y/ ^% B( E0 n - WiFi.hostname("Sparkle");
, Q/ R. W( P1 _! N6 w; K( @% Z( z - WiFiMulti.addAP("wifi ssid", "wifi password");
9 ]. d5 r3 B' m' f# E - int tryNum = 15;
$ W; i" f1 x3 b% J1 ^/ F2 e) F - Serial.print("Connect WiFi");4 ~ x. `4 L' v7 c$ \- J' [
- while (WiFiMulti.run() != WL_CONNECTED) {$ J: S. o4 E# M8 w l4 \9 @/ D2 Q
- digitalWrite(2,0);
% f9 t, K% G- {+ Q- s - delay(200);7 o6 J! E( X& S7 [5 f% }
- digitalWrite(2,1);
5 L5 N8 t) W: _7 x1 A6 Y0 x - delay(300);, T5 C) c. I; K4 J
- Serial.print(".");
D$ j( X5 G1 C' N - tryNum--;* z( e: J% S& P
- if (tryNum == 0) {# H8 e8 Y! E; p% U4 y; `% G, Y
- // 1min
: ^/ w0 F3 Z2 X - // ESP.deepSleep(60e6);. Y7 D& f8 D: Z/ N) u( T
- ESP.deepSleep(0);
; g# i1 F. i! C3 F - }8 e, O0 a9 N$ M5 O$ P( E
- }
( F7 z) N: U( \ a - Serial.print("\r\n"); ~) w# l* @. r% M t; e
- digitalWrite(2,1);
) Q7 B8 w9 i$ }. J. \ - Serial.print("IP address : ");
6 q! n: q7 e: @& |) B - Serial.println(WiFi.localIP());
0 R/ t! u1 {' G$ ? - server.on("/", HTTP_GET, [](){
. C. I. W P0 y+ {! b1 Y - server.sendHeader("Connection", "close");
4 c5 h8 b4 y- u: g& J# l( u - server.send(200, "text/html", serverIndex);# E) `( c. b% e1 J* _# ?
- });$ P; [) p: `9 p8 ?
- server.on("/update", HTTP_POST, [](){
F; c9 F0 [- o5 s - server.sendHeader("Connection", "close");. ~4 h' I+ N, I
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");: g3 [" v8 h# G( t4 u& o: E
- ESP.restart();
7 [! W6 G7 ?* ~+ ^9 a6 q r - },[](){
1 E+ O9 C- e0 k - HTTPUpload& upload = server.upload();' _* r; R' Y ?5 n
- if(upload.status == UPLOAD_FILE_START){
$ Q; k* [* M( \& j- H. k - Serial.setDebugOutput(true);
- N9 ^8 `, a; g5 \ - Serial.printf("Update: %s\n", upload.filename.c_str());
: F8 C+ [6 ]9 Z - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
1 |1 Y- W4 R+ i+ v1 R- v& d4 o - if(!Update.begin(maxSketchSpace)){8 G4 R- ~$ T( C I' u
- Update.printError(Serial);
& k6 S: B" Q6 j6 w' Y$ p - }& D0 s, \; _: g; W- \" ]
- } else if(upload.status == UPLOAD_FILE_WRITE){$ C& C7 e8 n8 ^5 \6 ^8 V3 b
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){" T+ e+ Q( X+ }6 N
- Update.printError(Serial);. y y2 y" ]' }
- }
1 g6 Z s3 s( r, V; k5 m* t - } else if(upload.status == UPLOAD_FILE_END){
2 M# j1 u2 ^% w# E9 ]4 u# [8 ] - if(Update.end(true)){
9 n4 j+ l- m* |+ Z3 Y& j: ? - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
; A7 C/ [( _( K0 j3 ] - } else {/ s+ w5 P1 u! S& }
- Update.printError(Serial);% Y. I+ O1 t3 {8 |3 l% }
- }' \3 G, G4 r4 j" w% q* U
- Serial.setDebugOutput(false);+ O* t# Z5 x! E. i3 d: p# q
- }
3 ]6 |! Y4 h" g, v) ]; }. ]' H! f - yield();2 ~3 P S p0 Z# o: K3 f4 T
- });. v( j7 U* y& \7 u
-
; J' F( ]6 ]5 m/ v - digitalWrite(2,0);
" x9 g W* A3 r- W( _2 L: n0 v! q# r - mainAction();
; K/ z; i3 V2 e5 X/ P - if (digitalRead(0)){0 x4 ~; {% Z/ W% d& y
- ESP.deepSleep(0);
* y8 M8 T) ^! A0 z) t# |5 a: t( S - } else {
+ j l# i* @) N2 }( F. e" Y - server.begin();
& Q( C2 u% J7 t - }3 c; A' s% @% A. R8 }! Q4 o: _
- }
+ q& H* w" ^+ H) d# F6 Y - void loop() {
% L8 }/ J- Z- {- {6 l' x# E% Q - server.handleClient();! K8 s' n" x! O' M( M/ w; y
- delay(1);
_: Z' C* F4 ]. @" T - }+ g5 W2 B( T3 h( [- K! r4 `
- String doGet(String url){
0 ~, t. j f3 Z' d7 m - if ((WiFiMulti.run() == WL_CONNECTED)) {$ S: l6 \0 ? Y% w
- HTTPClient http;6 w1 A+ a$ G) K: V3 G
- Serial.println("[HTTP] begin...");
2 R* w3 k9 m0 [+ K6 f - if (url.startsWith("https")) {
. O8 I2 u+ w5 ]5 J5 [ - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38"); @# K+ ]- l! |2 q. l$ n
- } else {
0 _' o: H6 R3 f4 t: g7 u* ^ - http.begin(url);
" F: R1 B' |5 H - }8 b9 X) k% a9 Q) y" U
- Serial.println("[HTTP] GET...");" V- D9 H. ]: L( R0 R$ k! v: D
- int httpCode = http.GET();. P; i6 C+ v2 Q+ ^" ~. M/ |
- if (httpCode > 0) {
+ q6 y W' v, p3 u. W - Serial.printf("[HTTP] code: %d\n", httpCode);# F5 M" K- r7 s5 _/ G( F$ P
- if (httpCode == HTTP_CODE_OK) {
9 N# [, k! D8 n, [ - String payload = http.getString();# L) o( k+ s" O3 {' x1 \6 b
- Serial.println(payload);, `3 [5 y! F, m; v) Z
- Serial.print("\r\n");
z. V" V5 Y& b8 [' ` - return payload;
0 y5 x" c& j/ O$ p6 e - }
0 i* W* r% ?# Z6 C- L9 d4 v! c - } else {2 m7 F: c+ b* x, ^$ Z; D
- Serial.printf("[HTTP] GET... failed, error: %s\n",
# X: d& m- B; O' }+ C3 k* C - http.errorToString(httpCode).c_str());
. k0 W0 f; j( N1 Z! l8 m; B9 Y - }
' c1 {; i7 b" @* u' ?4 ?3 ]% s - http.end();
9 `- N; g+ W# R: I9 r# z- {) V0 m% y - return "";$ A, |0 n' K* N4 s* L% [# f8 D' a
- }
2 M [/ C: F8 z5 u; D+ \& ~( e! N - }! q) ^# D) \* w" j: z) I% g
- void mainAction() {: x8 [. D3 M% m+ D
- // 发送请求
$ j5 n( u: G- f/ |# m - doGet("http://google.cn");4 s [* d) C4 _/ C3 Q
- }
: @' n9 y+ G1 a& L7 ]
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