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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). U$ \/ f f8 \) [+ D8 a9 d0 A
- #include <ESP8266HTTPClient.h>1 p0 p4 n5 Y( l5 I
- #include <ESP8266WiFi.h>. x# }( V* Z9 M) R# Y2 K
- #include <ESP8266WiFiMulti.h>
; L {/ e- k& B# I2 z - #include <ESP8266WebServer.h>
8 \; w* \2 t" i5 L' r- P - #include <arduino.h>/ m; w. H6 A5 V, H
- ESP8266WiFiMulti WiFiMulti;
! q6 I* ?* [+ }" w" l) G F1 w4 Y; _8 l - ESP8266WebServer server(80);& B$ s/ g; d x* _ B8 J
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
6 X$ C Q. B" L) _ - ADC_MODE(ADC_VCC);8 e" o0 V U' e9 \: g' F2 E
- void setup() {
4 Q! g" ^: P; `, \ - Serial.begin(115200);
( N$ C" l$ ?6 g, e3 T9 b( G+ v - Serial.print("\r\n\n");
1 G( K- Z! s# t+ R# s1 l, {4 j - pinMode(2,OUTPUT);
( m% |. Z3 n7 ?3 H) G( M/ T# F - // WIFI
5 e0 X. A$ U; B& x3 ~2 b6 q/ d - WiFi.mode(WIFI_STA);2 F4 s; p- s$ o
- WiFi.hostname("Sparkle");
& r* Q. m! L* a! e _5 {! {3 x - WiFiMulti.addAP("wifi ssid", "wifi password");- w) j% o( ] @$ ~4 t$ l! r% i7 K1 e
- int tryNum = 15;
) f4 r" |2 x x% J0 e - Serial.print("Connect WiFi");4 F0 u h% i) J+ h1 J3 [
- while (WiFiMulti.run() != WL_CONNECTED) {3 j# o' w8 T9 ?$ D3 z& R
- digitalWrite(2,0);( h8 ~' q2 B6 k4 k6 t
- delay(200);4 b! W9 D# n; u0 A1 S, J6 y
- digitalWrite(2,1);7 I# f( V7 b% c/ x9 V9 k
- delay(300);
3 P& I) l7 N. Y- d - Serial.print(".");1 i' k/ O! N4 N
- tryNum--;$ p, _* W8 `1 _1 R
- if (tryNum == 0) {5 ~( O) a) b) ^; [
- // 1min7 W, c7 ]( ~* g7 V! N
- // ESP.deepSleep(60e6);6 ~7 [0 j3 V% o, {4 ?7 x; }( R3 ?
- ESP.deepSleep(0);
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- }5 s, b, g% D5 |5 V2 v" P0 n* s* J- c
- Serial.print("\r\n");: [& n5 d: A; G* ^
- digitalWrite(2,1);
5 V) l( n. v! |! c L: Z - Serial.print("IP address : ");
+ T3 c, F% u2 y4 I4 q/ @, X - Serial.println(WiFi.localIP());! B1 G5 ?& B$ e, Z6 N( y! n
- server.on("/", HTTP_GET, [](){
4 x" x) n- o! n( Z2 M; O+ h% U - server.sendHeader("Connection", "close");) W3 |2 x! E( f* ?/ W
- server.send(200, "text/html", serverIndex); P% C% j4 V: \+ D1 C
- });- P9 N& w- [3 p5 s- Y
- server.on("/update", HTTP_POST, [](){
: ^1 e' x0 j' a. D; Z* C( e5 ^ - server.sendHeader("Connection", "close");
* M- u3 m! {+ @* B/ ?. ?* X' G! j# R6 U - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
1 B- Z ?2 x4 R0 v5 \' X - ESP.restart();
( Y. o3 u3 U5 w( p, L - },[](){: z- b: |) P8 @& n
- HTTPUpload& upload = server.upload();
8 `# b/ i1 v. F- \" [ - if(upload.status == UPLOAD_FILE_START){
: ~; t' b" t9 C6 N( G( ~5 Q0 B% W. i - Serial.setDebugOutput(true);
2 g8 E) s+ K' k( M% @! J - Serial.printf("Update: %s\n", upload.filename.c_str());- d9 p, L/ l6 a
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;/ W' \' }3 L) k: R; Z% P' @
- if(!Update.begin(maxSketchSpace)){
3 w# A0 G2 {. V+ M0 |1 \ - Update.printError(Serial);7 C& ?8 m% H9 }. W
- }, b; e0 u8 O& X7 Y5 Q2 M, ]
- } else if(upload.status == UPLOAD_FILE_WRITE){
\( f4 V1 d+ N# M. b6 I4 \2 S+ j - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){9 N j" M: X1 e5 `! I) h
- Update.printError(Serial);. m- f/ W# e ]' C/ E/ z0 H8 H
- }; {2 i* K7 p6 j: V+ j
- } else if(upload.status == UPLOAD_FILE_END){5 w# \7 M! L8 z- i
- if(Update.end(true)){( n G( _" D% ^
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
: r3 n% g% ~% L( O U - } else {
% z4 j% p1 r* k8 W - Update.printError(Serial);
- L9 q- B4 y1 L7 R - }
7 M! I% I* n, ?* \# j) f) d6 @3 k - Serial.setDebugOutput(false);
' f- l9 ^$ o( H( s B9 G: A - }
" ~2 F" h- \! }/ l. {$ M& n2 H; V - yield();
$ l- \( L# w. A( R& e! H - });1 h4 B) y: D( P" y- j3 J% D
-
4 C7 e2 y* [: y! Q2 l. | - digitalWrite(2,0);
+ O o0 ^8 ^/ L- ?, [- v3 C$ ? - mainAction();
* b6 c2 i. \0 {" D0 j P - if (digitalRead(0)){" O) a+ ]3 Q/ T1 K( @
- ESP.deepSleep(0);
2 ] h4 v& n4 E \( b - } else {/ t/ I9 d8 G; h2 ^1 N5 C9 ?# R
- server.begin();
6 \2 x# i5 `* \+ [# A& L, ~ - }! e4 ~. a5 @$ r) u2 }
- }
! x9 l) f# {8 F2 |3 J: a - void loop() {
2 H8 l( n' w7 B: Q6 b2 r - server.handleClient();$ M* f2 H6 Q/ X+ p6 I+ @
- delay(1);
. ]3 d0 ]; c+ u% y: y - }
2 }. R3 J& F& u' ?3 F8 X F - String doGet(String url){& `' K/ ~2 p% Q8 N% N1 }
- if ((WiFiMulti.run() == WL_CONNECTED)) {- J+ ?, u2 F7 ]$ D
- HTTPClient http;
( y5 W3 w# ~7 G( | - Serial.println("[HTTP] begin...");, R$ l/ S7 \% D" [
- if (url.startsWith("https")) {
7 L1 {. F& j1 _# z0 C0 x/ l( k - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");0 _5 ]& y! s( `& M) a0 Q
- } else {
! E- g' r2 }! I4 B4 f- H3 J - http.begin(url);% m5 Y1 T- Q# h+ ^) y
- }" e. d5 i3 q* C. z, A) j; \
- Serial.println("[HTTP] GET...");
! H3 y% R' K+ o - int httpCode = http.GET();& o5 w4 V" B1 w+ m6 c# i
- if (httpCode > 0) {! |, C$ y9 m2 S6 \; l0 y
- Serial.printf("[HTTP] code: %d\n", httpCode);
% m1 [2 U3 x4 |( t5 \! v - if (httpCode == HTTP_CODE_OK) {
& M. F7 @* L8 @+ b - String payload = http.getString();
1 _+ O5 S- u. Z# O8 y - Serial.println(payload);
( ^" O5 L5 n4 o: ?1 g; s f - Serial.print("\r\n");
' { S; q, F2 k" d - return payload;! l" h7 e G4 E6 Q$ M
- }1 D- F( b% Y0 x3 V* x3 \
- } else {
/ F" ?6 P: Q/ V5 E ?/ A$ x5 u - Serial.printf("[HTTP] GET... failed, error: %s\n",$ x8 U: q/ }$ ?: I |
- http.errorToString(httpCode).c_str());
$ i6 _/ o& H! o4 M( ^* v2 y - }
# e9 V" _# B! c. O& ~! N% X - http.end();9 b& e1 H5 V5 ^( a$ ^+ w
- return "";
2 n1 L6 P& x: ? - }( n- X, Y5 \, p7 F
- }
7 A# y B& G4 R5 F - void mainAction() {, T" \' R% R) B) I8 ^
- // 发送请求
9 q+ b0 _" @1 V: }5 T - doGet("http://google.cn");
' |7 i* S9 Z# B+ q - }
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