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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)* g; [$ n1 E) m0 Y6 Z. _2 f
- #include <ESP8266HTTPClient.h>
# B7 {4 l7 T: u* W: d! n - #include <ESP8266WiFi.h>9 w% s; i; G% w
- #include <ESP8266WiFiMulti.h>5 t# R# s5 w2 s) f( X5 M
- #include <ESP8266WebServer.h>
+ r9 c3 F7 _* z( b- T - #include <arduino.h>. ^( @5 U8 h. i: i8 p8 c
- ESP8266WiFiMulti WiFiMulti;* a1 A4 R: E: ~, D
- ESP8266WebServer server(80);
, L" F$ u; B2 }+ U% z7 | - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";5 z4 J7 k+ a! n, d6 U" [
- ADC_MODE(ADC_VCC);, \- K, Q: m5 u& @' |
- void setup() {
9 @8 a- d8 C$ M1 N. e. N) A7 T - Serial.begin(115200);
! R1 M; s! B& z! {8 `- z% Y - Serial.print("\r\n\n");
- S' h. [/ W1 W8 g a) z; ]1 w - pinMode(2,OUTPUT);/ W/ n7 i% x$ J' {+ o
- // WIFI
8 J0 N" G8 l$ g6 I% {: q# I3 M% p - WiFi.mode(WIFI_STA); i$ C/ Y; t- l5 S$ p
- WiFi.hostname("Sparkle");
9 u0 w. ~% I6 k7 h - WiFiMulti.addAP("wifi ssid", "wifi password");; T" T% c. s( b/ Z& P# X/ v& O$ O( X
- int tryNum = 15;" e6 \: }* O& O: b6 b( `+ a
- Serial.print("Connect WiFi");: _4 F7 t( {9 Y4 D
- while (WiFiMulti.run() != WL_CONNECTED) {/ T9 u) o$ A% X1 _; C
- digitalWrite(2,0);( d0 c1 f3 k0 |) ` i4 ?
- delay(200);
8 ]2 C' i( r5 n. j7 q4 K - digitalWrite(2,1);; {. d m# Q2 C5 M6 D Y
- delay(300);- F4 f; k& h# l, @: Q- I
- Serial.print(".");
$ z+ e9 o7 D: u3 [ - tryNum--;3 O! E5 u0 {) L
- if (tryNum == 0) {
8 x s2 n4 R. N - // 1min
! x& a' j% q6 M. ]$ D6 |2 B5 S - // ESP.deepSleep(60e6);% m; q+ O" j' |1 ^: e( f3 P
- ESP.deepSleep(0);, q. b% p" g, T1 _$ I: _% _
- }
+ c. p/ R- R' E) s1 J: k2 ] - }5 T8 @, s$ H5 u0 _6 R
- Serial.print("\r\n");# t% e6 J% O) f8 F g U* v! V/ v
- digitalWrite(2,1);
K+ R6 J1 M! \2 d1 K& r& { - Serial.print("IP address : ");* I: Q0 G x# ?& _% F6 e
- Serial.println(WiFi.localIP());
9 ^1 d; @% Z- E. m% d* Z- ? - server.on("/", HTTP_GET, [](){( z8 X7 Q& J* e4 I4 B( Z. Q
- server.sendHeader("Connection", "close");
( m! H) q6 _7 Y0 A - server.send(200, "text/html", serverIndex);/ _* M% O4 K3 V5 a, g3 K' ~
- });( F7 N# x5 c& f# h* A6 \& v K
- server.on("/update", HTTP_POST, [](){
" z1 x2 u, p Q' x* s# F! s - server.sendHeader("Connection", "close");6 X% q( q, V) M. p$ a) Y5 e. A
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
2 k/ I2 u. ]! `, [" f - ESP.restart();0 `: Q A% o7 t; J7 p* B* D
- },[](){
1 P& N9 s9 m# x. S( Q - HTTPUpload& upload = server.upload();
" P4 W7 C2 X# `; A1 @ - if(upload.status == UPLOAD_FILE_START){
3 q9 R [5 n1 t0 V" i! F - Serial.setDebugOutput(true);
1 E4 E9 E) C% ?0 P6 Y. p - Serial.printf("Update: %s\n", upload.filename.c_str());0 C/ J6 n, y8 b( A) Z( E" u
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;& d, z; p) `" u/ Q' T: d) x
- if(!Update.begin(maxSketchSpace)){" Q7 b# ~' m0 j6 r' C
- Update.printError(Serial);
" k8 h' }5 v+ W% t5 l3 r - }
7 o6 J) G: D0 T" k+ |% | - } else if(upload.status == UPLOAD_FILE_WRITE){
; D! r. R+ ~8 g - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){" _% H3 n$ d q. a3 n/ u) a/ U
- Update.printError(Serial);
9 I+ `# Q+ o) l7 c5 j) Z1 B/ ^ - }
! L9 L. a% Y( {8 q - } else if(upload.status == UPLOAD_FILE_END){
- q: M1 Q) X, h) M k; b1 y5 _9 [ - if(Update.end(true)){
/ T- Q) K O8 h3 }6 I9 i9 } - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
5 S; g* V* d6 a9 J# ?3 R - } else {
8 c8 T; n& P1 t) T/ z0 }4 i: x - Update.printError(Serial);* p: i" U* S- K
- }2 |# ^. W) j7 e/ q3 v
- Serial.setDebugOutput(false);
1 x$ A/ G, l3 \+ K - }
* K2 ?+ }( ?2 G& o. f5 }5 x9 o - yield();
H$ n( s X/ N- x$ f7 a$ A. N7 `( X - });
: L5 ?) H! @* k -
/ b# T& t! c' f7 @6 @. X - digitalWrite(2,0);0 ^: _. y/ p$ ^: L; b6 P
- mainAction();
, J6 B- `8 p7 c+ k - if (digitalRead(0)){
/ \+ z( _# b$ R" p7 R - ESP.deepSleep(0);: p) g3 K$ `/ H5 H; i
- } else {7 y, b+ y! \. g# ?% w' ]7 D, g
- server.begin();
. D. I7 A& N/ c* @$ z3 Z7 ? - }5 w0 d p0 k$ z
- }
, v; _% G8 B6 z; a - void loop() {9 Z" w# Y+ t: X. i5 K
- server.handleClient();' x5 D: { ?- D. W! ^, e
- delay(1);
, K% F& G1 R6 G L - }/ x; T5 W' A; b8 T
- String doGet(String url){
3 a7 s. s3 U! o3 W% P - if ((WiFiMulti.run() == WL_CONNECTED)) {
3 V* T: |7 s' Y; v% [0 [ - HTTPClient http;9 P. F( y7 K* \3 U
- Serial.println("[HTTP] begin...");& m3 x4 e0 \5 ?: J
- if (url.startsWith("https")) {
- g m% D; H8 m: s/ 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 K# _& d/ r! b- q: z, H! J8 B- F - } else {
3 \) B& G. y8 b - http.begin(url);
# _3 T8 L$ I. N% M v - }6 S: S/ z+ {' o: J+ m) C, T- \
- Serial.println("[HTTP] GET...");
! P* |5 g# J4 Y3 i9 m - int httpCode = http.GET();( X/ y3 x& c1 H2 Y& v
- if (httpCode > 0) {
, z2 |9 P& t( q7 `9 i; p$ w - Serial.printf("[HTTP] code: %d\n", httpCode);
) D1 F: m4 U* M5 g" B' e - if (httpCode == HTTP_CODE_OK) {2 x z5 X2 r; N/ y( ^, ]
- String payload = http.getString();
$ `3 V3 @. D4 C5 I6 S - Serial.println(payload);
3 y4 e- I/ K( \ ]7 M# |" L - Serial.print("\r\n");2 O* m0 d& i3 e |; L
- return payload;
+ |- u% z' ?. B: l3 A& W - }& e3 m) s) ?+ n+ q+ U. _: l. t
- } else {. Y' |) `$ m8 n% T1 b% }
- Serial.printf("[HTTP] GET... failed, error: %s\n",
% x2 p/ n" I! e6 X/ M/ j5 M - http.errorToString(httpCode).c_str());
; [' E/ d z9 g+ e+ X9 w4 r - }
" l7 K% I8 j1 s; b+ i' m - http.end();
/ E g& R! s! l& z( y - return "";8 @" g: e; F. t+ T: t
- }
; v; Q; H- h$ W. q& q, @ - }6 T. I3 i9 i8 A- S' d! {& {/ Y
- void mainAction() {' O( x Q# A# f, B" c" B: g7 @
- // 发送请求
+ n. C/ q, Z) U4 i3 @1 F, P0 ^: ? - doGet("http://google.cn");
, N+ ]7 E9 j* _! w" l) M1 H - }
! _4 f: S' K4 B) @
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