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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)- h. L- _0 r. N Y
- #include <ESP8266HTTPClient.h>8 o( w& a& b( d$ N8 @
- #include <ESP8266WiFi.h>( |( Q" ?- C. q3 B9 a( J
- #include <ESP8266WiFiMulti.h>0 i4 q! T' U! y! o
- #include <ESP8266WebServer.h>7 O+ X0 i/ O" C6 K
- #include <arduino.h>
7 Q8 X$ C }' j) x+ D+ j - ESP8266WiFiMulti WiFiMulti;2 ~8 { k. S* `, D- J
- ESP8266WebServer server(80);: i% e1 u4 J H9 y" U n& f4 g
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
7 F. c* K9 B8 ^6 p5 K$ K; t - ADC_MODE(ADC_VCC);
0 Y& |3 D, U9 J0 k- k+ a - void setup() {: t) W' R' t: s6 `4 X$ N
- Serial.begin(115200);* v% `3 \* \7 z1 B i6 U4 N, t% z
- Serial.print("\r\n\n");
# Q, L/ t u/ e* `! F# w - pinMode(2,OUTPUT);
2 y, C! u" n4 O$ q' M - // WIFI* z; I7 T& P# B5 ^ o
- WiFi.mode(WIFI_STA);$ S' o3 j1 \: Q: M: `% L4 I
- WiFi.hostname("Sparkle");5 T6 L/ I) X6 \8 x" q7 E* T8 P
- WiFiMulti.addAP("wifi ssid", "wifi password");8 @( N8 A5 }, e9 G- {3 f2 k
- int tryNum = 15;, f" Q* R4 j% m5 ]
- Serial.print("Connect WiFi");1 a4 N5 E3 g! ]8 G, j% I6 A
- while (WiFiMulti.run() != WL_CONNECTED) {$ V, c6 G O' J0 D I3 y X
- digitalWrite(2,0);
9 a* B0 T9 h: @9 |# K. f - delay(200);
8 c {. t; N2 I/ {7 E' P - digitalWrite(2,1);! P4 m6 \5 r) `# O! }, _9 J6 c
- delay(300); ]: w* T3 F4 O. E* h* z k( i; m
- Serial.print(".");, t% o% q0 ?# X% o; z
- tryNum--;
; @2 U0 A8 H8 g6 b- ]7 S( S( }1 r - if (tryNum == 0) {
$ v+ f t, U) D) ~2 w6 \3 ]; u - // 1min
# M8 V( y5 ~8 w* Q - // ESP.deepSleep(60e6);
% b' t: L% M3 N3 n4 X6 W$ D - ESP.deepSleep(0);3 p6 |1 j' w9 O! I
- } Y5 u+ K- a& |: k1 F# a6 o2 g
- }
) W( o& b' ^, S9 R# k - Serial.print("\r\n");
@$ _# C' }, L. Q' n. {% i - digitalWrite(2,1);
w9 D, O s) q/ g - Serial.print("IP address : ");
5 R" U7 F$ |+ q3 [( y+ y - Serial.println(WiFi.localIP());
- ?$ E% l; P4 T" Q - server.on("/", HTTP_GET, [](){
' D" K. O& ]' k6 ]" F - server.sendHeader("Connection", "close");
' q( k3 ]. l, T4 t - server.send(200, "text/html", serverIndex);
+ u" u9 _! V: q5 ? - });0 { s F$ j& P" {
- server.on("/update", HTTP_POST, [](){
0 Y8 I5 B# Y! s" Q: _+ w - server.sendHeader("Connection", "close");
$ {/ E6 Y f. n# N2 t* h - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");1 X) u/ n8 D+ |0 B% o
- ESP.restart();: \& T* W2 T! b7 j9 s( K! `
- },[](){
2 a/ q- L( Q$ h& f+ ~8 e - HTTPUpload& upload = server.upload();
) P7 Y* I) w# m9 G4 @& ]) y; x - if(upload.status == UPLOAD_FILE_START){. {* N' Z. O4 z2 z8 a
- Serial.setDebugOutput(true);( h1 {6 v- ?' T! X7 h0 R
- Serial.printf("Update: %s\n", upload.filename.c_str());
4 X# L7 G5 V" `2 A% Y - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;) b0 ]6 P5 @$ \; K
- if(!Update.begin(maxSketchSpace)){0 [( [3 X3 B4 O" P* E
- Update.printError(Serial);3 `0 E5 f1 H0 b$ v
- }! M1 R" P$ |! o! r
- } else if(upload.status == UPLOAD_FILE_WRITE){
. C Z4 }* t# o7 {! M - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){ ]0 y/ _& x+ ]6 a; O* B9 U& u3 e
- Update.printError(Serial);* S5 f( C8 v# G$ S1 ^! i0 W0 V
- }$ n8 O/ \" t8 ?5 H* y
- } else if(upload.status == UPLOAD_FILE_END){9 ]' l* ^8 }) a$ z4 j& e
- if(Update.end(true)){' s3 S; r$ \$ o3 }
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
' |& ~ j7 i7 d( T - } else {+ k, a3 r, x$ a9 f: w
- Update.printError(Serial);
( r( s; F+ E1 n) E& _. b( f - }% ^* f$ I% d7 ]; B& L8 B( a' }
- Serial.setDebugOutput(false);, u2 j: p1 n& E# x1 p
- }+ J8 y G* x; e7 d
- yield();
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-
5 s9 G7 b5 ~% i& W7 v9 F - digitalWrite(2,0);
; e: C" z0 f) a6 ~ - mainAction();
" z* m; _+ q v' d& I) r( Z - if (digitalRead(0)){* Z8 h8 u5 i2 C
- ESP.deepSleep(0);
! \- i R' I! H" e! h% a- d - } else {
" t* D0 u& C) q, J& S- g - server.begin();
( r( b* Y+ Y* f$ `1 p - }
D4 q8 h7 f, R4 Y8 Z9 Y. K - }
8 U+ l! g/ D$ j - void loop() {
9 T0 z4 L, O- A7 h+ x - server.handleClient();7 d3 S3 ^' G) x$ S# d) G
- delay(1); p, G! [7 b5 g5 _# i! H5 ]
- }5 L1 V. P! @) N- X4 [
- String doGet(String url){% a& y G7 E6 d( H* y/ q' G
- if ((WiFiMulti.run() == WL_CONNECTED)) {
( s( B: L8 L! W; D1 M/ R ?! M - HTTPClient http;5 R+ @$ s7 A+ _8 C
- Serial.println("[HTTP] begin...");0 j9 `. b3 O, `& j" [
- if (url.startsWith("https")) {/ f8 Q7 k; f- \$ E4 q" O. V
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
' }4 d2 L3 v8 |* j1 @ - } else {2 m/ w- U8 O+ i- R/ m8 A; e
- http.begin(url);
1 U9 q; B8 S$ ?6 \: w8 G' U9 B' t$ T - }
; A2 h8 A2 F- v- t. ]5 j) S - Serial.println("[HTTP] GET...");
; g a: @% Y" q3 v7 Y8 A - int httpCode = http.GET();
; k" D) V. Z9 Z( Z8 v k - if (httpCode > 0) {3 ~+ k V5 N- \& r5 J3 L7 Y- c
- Serial.printf("[HTTP] code: %d\n", httpCode);
1 n& y9 _; D1 {8 W% ^) C; k - if (httpCode == HTTP_CODE_OK) {
9 `0 Z- p/ b* u8 ? - String payload = http.getString();
: }+ b9 m6 r# h; t. i0 g - Serial.println(payload);$ T" _; ~% P. u4 M, M6 E! j* R
- Serial.print("\r\n");
* ^6 p8 a8 L$ p5 t$ @1 l' F - return payload;
, F% J v9 S& X! `" {% t - }
0 W. }! N$ a% c1 _ - } else {
, k' u8 M9 @: ^) L. Y# X - Serial.printf("[HTTP] GET... failed, error: %s\n",
1 }( S- ]4 S+ K- h& G. K* o, |+ v - http.errorToString(httpCode).c_str()); \+ A z0 E" ]9 W$ B# q
- }% X- _; b6 G" ]) d2 z
- http.end();
+ }8 W" f y! P6 I( \# k - return "";
5 w3 K4 D" h/ e2 ~) x- c - }
$ \4 c: X2 X/ e' b5 m6 n; V - }
! n/ {5 s1 \% V Y/ S( a - void mainAction() {7 s4 J9 n3 g; H6 n- J* ~+ i1 |
- // 发送请求
+ |" b; @$ W2 e" r$ Y - doGet("http://google.cn");
9 A4 y k+ d4 m6 ?3 O$ E4 q; Z. B - }" ^9 D1 i! j3 x! w- m0 ?0 s" o
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