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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 ?- s+ w. p
- #include <ESP8266HTTPClient.h>& @% o% y- D8 [5 c2 j# Q5 z! e) d
- #include <ESP8266WiFi.h>8 ~$ V7 k4 j( y9 p5 D, x$ W! V
- #include <ESP8266WiFiMulti.h>) Q2 o8 Q; a6 e
- #include <ESP8266WebServer.h>: \* v2 z$ R9 Z7 r! b* r
- #include <arduino.h>; V$ R. j5 y- g( \' h
- ESP8266WiFiMulti WiFiMulti;
0 J! }7 f! Q0 v. V6 _ - ESP8266WebServer server(80);
7 U8 J9 h% {7 _4 a$ L& q( _) z- o - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
! u+ R) B/ w6 w/ [3 C4 ?! y - ADC_MODE(ADC_VCC);
) d( ?9 R9 q8 l" k; L - void setup() {
; W/ `! e. W' `' j8 x+ y - Serial.begin(115200);) y" E" B& ~% s. i Q; m. d
- Serial.print("\r\n\n");
& V3 @$ r( ]% }# H; ?: Y - pinMode(2,OUTPUT);
S7 q2 Z6 j. Y- V0 f/ d" D6 { - // WIFI/ A1 Y. Z5 Y2 u. y& O, ^1 L
- WiFi.mode(WIFI_STA);! ?- O( S. b, F" M3 @8 t
- WiFi.hostname("Sparkle");
, N9 ^4 Y% J( L! f9 O3 S - WiFiMulti.addAP("wifi ssid", "wifi password");
2 X' ~+ O- o- `% l3 ]6 F/ Q' | - int tryNum = 15;* K# K* u M& |4 E' V) b( O
- Serial.print("Connect WiFi");* U6 N: V; o' f( J4 G2 N( {. K
- while (WiFiMulti.run() != WL_CONNECTED) {' z% d7 V$ u; ~3 U
- digitalWrite(2,0);
& r ?! ]) E7 U5 f9 t- d! H9 y* T - delay(200);
7 v6 R# o2 j2 a/ F - digitalWrite(2,1); ^2 U; t5 U4 T; b
- delay(300);* X* M( X/ q9 c" g' ?
- Serial.print(".");2 S) F( {( ~) L; o. m* O
- tryNum--;/ n/ `' R4 @9 r
- if (tryNum == 0) {6 Z. ?3 i$ V8 I
- // 1min H' ]2 c& m" [) S+ n# |
- // ESP.deepSleep(60e6);
i8 {) M2 g% @, c1 A5 g; y, P! R9 k4 j - ESP.deepSleep(0);
$ \9 x) G: b- p5 q1 z - }
5 q2 P/ X9 _; A- @, F - } o' H, @4 j4 a
- Serial.print("\r\n");# \& j1 b& S* w! W7 b! h
- digitalWrite(2,1);% r. j( H" R5 U8 F
- Serial.print("IP address : ");5 o* J; i' ~& ?* b3 A2 R
- Serial.println(WiFi.localIP());
# G4 `5 {' Z0 U7 C* l - server.on("/", HTTP_GET, [](){
: I9 {# _' ?7 X: L- b, w5 n/ F, c) q - server.sendHeader("Connection", "close");
, C8 Z* s1 @3 X8 ]6 q- }7 v - server.send(200, "text/html", serverIndex);: V; f. M: a: s* y( u
- });
; p6 h, u7 Y/ y% @) v! g: Z: ] - server.on("/update", HTTP_POST, [](){
) a, v5 x0 {6 a! \* [ - server.sendHeader("Connection", "close");3 v& Z3 h% f8 k K$ e" A X' c' x
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
8 }2 E; Y0 N( b3 N8 B% _4 t$ A - ESP.restart();
- \2 N( r2 E; Q6 I( R - },[](){; d) x5 p7 i6 R$ l( m0 e( s; v
- HTTPUpload& upload = server.upload();
9 e" X' L/ N% T# } - if(upload.status == UPLOAD_FILE_START){
2 s/ K6 J2 q6 `! v - Serial.setDebugOutput(true);
6 C4 M& p5 p$ O& @) p( J$ E - Serial.printf("Update: %s\n", upload.filename.c_str());
" z4 C U7 e# K! F - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;) E/ u& ?5 c, ~. A! Y( ]
- if(!Update.begin(maxSketchSpace)){9 I& S$ [& g# p4 p6 \& J6 v% x
- Update.printError(Serial);& h$ p8 Z2 @4 `7 ~& J x
- }
& K) L- {$ `0 p! L6 ~! t$ r/ P - } else if(upload.status == UPLOAD_FILE_WRITE){
4 |) F6 z/ o% Z% o - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){6 n; L B7 K. C0 c
- Update.printError(Serial);
3 U! |! d; m: p' ]$ |6 `. i3 u - }
+ c7 W1 R: I2 }+ b - } else if(upload.status == UPLOAD_FILE_END){
; r6 \/ w5 u) Y6 h: ^- q - if(Update.end(true)){
9 o2 n' E# T3 |+ f N - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);% b4 C$ g- _7 M
- } else {: N0 f: I2 n( S' l3 A% v0 I2 @* ]
- Update.printError(Serial);
" H$ ?. P, O: Q - }
' @+ P3 m$ D, A# \! L( p - Serial.setDebugOutput(false);5 L6 \. U5 Z( F
- }
/ l, n1 O6 D# H Y; F% X7 x; T - yield();2 {5 i+ _3 r) k) k
- });2 H. e; m7 Z1 ~, f* d! ^. I- z( u6 M
-
- _" y1 g3 L$ t- [* u+ T* F+ b - digitalWrite(2,0);
( Q& {% [7 e/ U: k. P* s4 b& Q - mainAction();& Z! P3 u% b: V* N' t
- if (digitalRead(0)){: `# U6 P# q" W
- ESP.deepSleep(0);
- z. Y. Z0 J, z) z# W - } else {/ ^6 k3 |* a# [7 v' W, k& s1 x
- server.begin();
( ^, g' a" R9 A1 r8 e - }4 r2 p" n7 V: c
- }5 X9 @. w& x3 l" ^
- void loop() {2 z) B. j ^5 S) X) e: i
- server.handleClient();
9 S8 X* g" e, F4 J) S - delay(1);
) K' c X7 Q8 i. p M4 W8 J - }
9 k. `/ i8 G0 z: P& J, ? - String doGet(String url){
5 U* J* K- x; w, s8 A3 ~2 @ - if ((WiFiMulti.run() == WL_CONNECTED)) {
0 ]" D9 S1 y. j! p# ? p5 g% {+ ^. a - HTTPClient http;9 A9 |# r$ d3 J" a2 ?( q9 c; F
- Serial.println("[HTTP] begin..."); O4 }$ H) \ E& _% A7 a
- if (url.startsWith("https")) {0 K. K% F0 h; e) K( c; U" \% f7 z
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
8 `9 L o8 c! O) V. I - } else {
( X% t. A& u1 N$ t - http.begin(url);
/ ?) T$ A& a+ X/ O* P2 q. H" r - }
7 q4 Y6 v4 p* Q8 L5 J5 [5 i' n1 e - Serial.println("[HTTP] GET...");
, F7 v" j, w9 g: I - int httpCode = http.GET();
- C7 E1 P" ^( [2 p - if (httpCode > 0) {9 t! t. N$ M- M6 m+ C
- Serial.printf("[HTTP] code: %d\n", httpCode);
1 d7 y$ `3 R3 G - if (httpCode == HTTP_CODE_OK) {
% a. @2 G1 w3 R' C - String payload = http.getString();
( @ Q' b8 C" Z8 \ - Serial.println(payload);/ ~7 `( M( u% u
- Serial.print("\r\n");1 o: D3 F6 w/ T& \
- return payload;
# u" o7 ^/ X7 a: d - }
5 n$ ]* }/ [+ `4 p& ?) a4 C - } else {; G% ]3 K$ u1 {. E( c+ T. O& d
- Serial.printf("[HTTP] GET... failed, error: %s\n",- x: [& p$ n" Y0 g
- http.errorToString(httpCode).c_str());- M* I7 i! N" F3 f8 p' `
- }
# y4 t/ R/ r8 J7 r) x- W - http.end();
; C2 Q8 v) W/ d$ k6 c/ M9 m: f9 Y5 w - return "";3 t' S8 V: Q5 W; ?. r* k! y
- }
7 z/ t7 b4 f& F# ^3 R! C! v* [ - }
2 h) X3 p% e1 a3 z. k2 P - void mainAction() {
2 c1 V4 y0 ~1 m - // 发送请求 ]0 N; P( J; b4 p1 a& H
- doGet("http://google.cn");
! b" T! \9 f: a8 B! o% |4 }( z - }
, X2 |0 `% ]/ R$ x' `5 ?
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