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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)1 p7 G9 b7 _+ z) @1 g: r& K
- #include <ESP8266HTTPClient.h>
2 I: ^. T, Z6 D- u - #include <ESP8266WiFi.h>
3 E% w4 a! V" W; e8 R+ W# y3 l+ ^ - #include <ESP8266WiFiMulti.h>5 p4 m& q' U% w. v% w
- #include <ESP8266WebServer.h>
0 E7 Y! \/ }! y& s, r, m7 N - #include <arduino.h>
: v A* W1 A: |8 l* j - ESP8266WiFiMulti WiFiMulti;) J: K1 a2 M/ Z& p* f" b! s
- ESP8266WebServer server(80);
5 a) B, P. Y( N6 D1 E6 z: ~ - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";/ ]" c) `0 Q k) ^# y" Z
- ADC_MODE(ADC_VCC);9 j+ e0 K- I8 a! l8 {
- void setup() {7 `5 J9 \& ^2 D* |% `0 M* a
- Serial.begin(115200);- L6 p( ?5 I# x% a8 K. [' W
- Serial.print("\r\n\n");0 U" t4 g& A9 P
- pinMode(2,OUTPUT);2 x F8 A& t& g( Q+ e% k+ {
- // WIFI/ @$ \8 f7 v+ C# ]
- WiFi.mode(WIFI_STA);" b; O' w/ g, T! x
- WiFi.hostname("Sparkle");
1 A4 Z; ~3 B& S; ? - WiFiMulti.addAP("wifi ssid", "wifi password");
5 y5 D# Q% o7 O/ \- R) L- Z - int tryNum = 15;/ z6 A; |3 V- V& g
- Serial.print("Connect WiFi");0 i1 K% g ~7 f
- while (WiFiMulti.run() != WL_CONNECTED) {
0 U/ m+ V5 J1 v( Q F9 f0 {; l: b$ C - digitalWrite(2,0);
; D$ s9 J N2 w/ R# p7 m - delay(200);$ J U$ X% u/ m* J
- digitalWrite(2,1);
, G* F" s, g4 L( s - delay(300);+ ]! N6 S' M/ O( r
- Serial.print(".");* V) \7 ~ I. @4 P+ V) v4 s/ K2 S
- tryNum--;
* S, N* D1 I1 B2 [% L9 O! ^ - if (tryNum == 0) {* f0 J1 C/ q" j) ?8 E$ o
- // 1min; G6 o( r- k+ l7 Z% L4 |0 }; e
- // ESP.deepSleep(60e6);
7 l. l v7 p* K U - ESP.deepSleep(0);3 n" o. ?+ I% M" f( `% G6 }
- }7 \+ G# c# }, T7 j0 v
- }
% ^ l4 M; I3 V8 |1 q1 h/ N - Serial.print("\r\n");* ~0 E5 f4 Q5 r, Q/ j( k6 Y* b
- digitalWrite(2,1); Q' C& G3 D9 l" Q/ p
- Serial.print("IP address : ");8 f+ S$ e, _' Y4 N0 {3 J$ K
- Serial.println(WiFi.localIP());
+ j3 ^, [+ g- |+ G+ @ - server.on("/", HTTP_GET, [](){
3 d( g8 o% P% y1 E9 i - server.sendHeader("Connection", "close");
7 t: ?/ Y$ b4 ]4 U {& C( u, y# E- } - server.send(200, "text/html", serverIndex);! g* w0 i; h) o
- });/ }$ C- A0 L$ q; P0 M, ~5 c
- server.on("/update", HTTP_POST, [](){
2 v$ I a" B, {& j4 p* Q - server.sendHeader("Connection", "close");" |3 c7 x1 D9 i
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");- ?8 Y& X- f& V% g8 W2 n2 v
- ESP.restart();
+ O# r$ ]+ V c2 d) r$ A2 ] - },[](){0 F6 {5 Y n$ a; l
- HTTPUpload& upload = server.upload();6 m3 ~; O4 w3 [* k9 l
- if(upload.status == UPLOAD_FILE_START){
0 H0 i6 l8 l5 G+ X: ` - Serial.setDebugOutput(true);+ K8 j4 }7 D3 P4 L
- Serial.printf("Update: %s\n", upload.filename.c_str());
% {3 I! K) O8 n$ `- D - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
1 ~ s6 F. ]* s6 W, W, |% ~ - if(!Update.begin(maxSketchSpace)){( d) B* m: Y H" }
- Update.printError(Serial);. U3 ~( P; [) N% ~4 r
- }
+ g ~# r, ?! x8 P: f! w/ Q - } else if(upload.status == UPLOAD_FILE_WRITE){
6 F1 _5 K' z5 d' I: D* V - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
: K% Y9 {) B+ S - Update.printError(Serial);; N f1 \8 m8 _0 }( v, H" d1 x+ Q
- }% f. x9 k0 d9 L
- } else if(upload.status == UPLOAD_FILE_END){! h8 @, \) K+ C( l
- if(Update.end(true)){7 N9 |" W" X' `' C+ E
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);& ]4 x' `% ^# M" U0 h# r
- } else {) e- ^* |9 G0 t0 z4 o) s! h6 c& I
- Update.printError(Serial);# `- Q! z" k4 z8 v
- }4 g. I. O8 T) c: u. h: W; d
- Serial.setDebugOutput(false);7 [* ]% [9 t) I6 l
- }' P: w/ i% H+ N8 F* M
- yield();4 _( }* h* M- Y2 O# p
- });
! [6 A @; ], @4 q5 ~: h2 ^ - & H% p/ _7 G4 J, R2 E
- digitalWrite(2,0);0 F( X6 M4 l! X9 L6 e
- mainAction();$ `; }% f; T5 k9 z
- if (digitalRead(0)){2 u* U" Z% Y3 b8 { {) b& ^# i: @
- ESP.deepSleep(0);' S$ Z; f2 B7 l) Z# ?$ O% f2 @
- } else {
( R+ F0 b5 u5 h+ V- h: L - server.begin();; j. u i6 ?- @/ k; t
- } B# n" g9 m+ B7 Y( q
- }0 }# [+ Q5 i8 g+ s. c' L7 M, z
- void loop() {; B3 v0 t7 i# C' M( V
- server.handleClient();1 W7 S7 W$ e+ J4 Q7 k% ?' M/ Q
- delay(1);8 R) I0 H3 e ^
- }
4 H% h8 S" `; p# E, a8 c - String doGet(String url){
. ~, |5 M0 ^ C, g7 n3 I% U - if ((WiFiMulti.run() == WL_CONNECTED)) {
( U1 f1 p' K) k* H6 m: X1 Y - HTTPClient http;
- @0 } j! r( e' B4 E! q/ E - Serial.println("[HTTP] begin...");
9 u, e0 H6 T7 ]. ~ - if (url.startsWith("https")) {' r; a# q5 M" \5 G4 j
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");/ U$ d8 k: }4 ^: J& E4 H7 @7 `' R
- } else {
2 K6 L: C+ O, f P3 d Z& l - http.begin(url);- k& G) K% U4 V, J# c
- }
* n( O2 F# B( u7 E1 M% W - Serial.println("[HTTP] GET...");
- L$ W. I2 l* ~2 g, h# H - int httpCode = http.GET();9 O2 |5 Z0 [! t" l! Z5 \6 ]3 v8 d
- if (httpCode > 0) {
; y2 P4 ~9 {% d7 \1 T6 a - Serial.printf("[HTTP] code: %d\n", httpCode);
( N2 ]# \0 K. A8 u1 u% r' H - if (httpCode == HTTP_CODE_OK) {( Y2 w2 F+ e8 X! n- x- F
- String payload = http.getString();
) F% R" Y" g% c - Serial.println(payload);" {4 X; l" V' t( {+ Y6 k7 z- P
- Serial.print("\r\n");
5 S" X* d% q' d- [) P$ u - return payload;/ s0 f$ ~- W4 C% B8 F. G
- }
- W* w) h( T8 s# W4 l b - } else {
6 r+ V6 ^. o) b* u3 ^! @ - Serial.printf("[HTTP] GET... failed, error: %s\n",( ^7 Q i: j$ e! N9 e
- http.errorToString(httpCode).c_str());
! f4 X M4 i2 ~ - }
5 { `$ N7 \8 c7 h1 k2 i& N* G - http.end();
& l/ q" n4 q% J - return "";
* A; {$ J ?) T. j - }
+ x$ a5 u8 Z0 V4 o+ \ - }" g0 Q. N3 ]. V0 O3 q
- void mainAction() {
- J- ^8 d0 A: L. x - // 发送请求
* Y |+ q, e8 |6 Y8 v; ~ - doGet("http://google.cn");" d- z C( A! e |1 E2 F& Q& J; p' {& i
- }
* V* T+ Y3 j* E- m1 S) O
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