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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)
' L; f0 w' O# K( X5 ` o) o- #include <ESP8266HTTPClient.h>
* N; `# a' Q0 g - #include <ESP8266WiFi.h>! J" q% b$ c( M! e
- #include <ESP8266WiFiMulti.h>+ Q- i" E% b' }2 M: w O
- #include <ESP8266WebServer.h>' m0 Z5 {# Y- N" r, g; U. F
- #include <arduino.h> |7 P! |1 S3 t# w. x
- ESP8266WiFiMulti WiFiMulti;
) b% _3 X; T& R - ESP8266WebServer server(80);) O2 J. c, x- W. D7 ^
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
$ ?. Z3 c/ f9 c9 n! b7 N m2 U. z& n - ADC_MODE(ADC_VCC);
D- b" l2 {9 Z; _2 a - void setup() {
) [( ?5 b- ]: u3 u" D5 M - Serial.begin(115200);, ~& t7 D# Q: ~6 }6 n w
- Serial.print("\r\n\n");
& P( R# R: F7 N/ ^. R - pinMode(2,OUTPUT);
* U( |! G; x: w6 s3 b/ r& ]9 i - // WIFI
" ]6 v1 O% s) z3 d9 y) R4 d - WiFi.mode(WIFI_STA);: b6 \4 ]+ n- f' G0 g! v" _
- WiFi.hostname("Sparkle");4 m, M! ?' F$ O& q
- WiFiMulti.addAP("wifi ssid", "wifi password");
) o& W" ~0 _4 ^4 K; Z - int tryNum = 15;
2 L. S1 |0 o5 x- W6 i( e - Serial.print("Connect WiFi");
- l3 i4 ^' Z8 ~7 z, s, w: e! Z; g - while (WiFiMulti.run() != WL_CONNECTED) {7 N( c( }1 ]& H( W: M# H1 K, z# ?& N
- digitalWrite(2,0);+ r4 Z# t" @7 E. {( S/ u
- delay(200);
( C2 T( w* q D k, b1 K - digitalWrite(2,1);' O$ Y7 X, l: A% E, y/ j- L6 ]
- delay(300);
1 ?9 @; N! O( T, t - Serial.print(".");
/ u6 \$ _1 A$ z; X7 n' L, _ - tryNum--;( }: ~1 i* \3 u2 Z3 }& C2 }
- if (tryNum == 0) {; H( m+ B5 @6 e: ^5 e- V
- // 1min! @& l# s3 m! U( X/ U
- // ESP.deepSleep(60e6);
3 e% K6 c+ ~8 c- |9 S - ESP.deepSleep(0);
+ ^; R5 C9 z3 S - }0 ~# y+ ]- ], [7 Y9 n; N0 [2 t/ J N3 R
- }& r: {& t; i# J8 H9 e% A+ z1 T
- Serial.print("\r\n");) A8 M- L% W2 z, P$ S8 F4 g( \* V
- digitalWrite(2,1);
- y. b' V& k6 k" m- P" g' f - Serial.print("IP address : ");
+ I8 Z: G# O; H0 g - Serial.println(WiFi.localIP());
2 u3 S5 Q& P6 S" ` - server.on("/", HTTP_GET, [](){
% u- }0 K! d: s' n - server.sendHeader("Connection", "close");9 d% o9 W+ A+ j* N. _' l- t# ~0 O
- server.send(200, "text/html", serverIndex);
' {* _, k1 R4 n! s0 K8 k - });
_' N% i2 ?. H( q: D7 ]9 x) J O - server.on("/update", HTTP_POST, [](){3 N; o- f# e* a
- server.sendHeader("Connection", "close");
: m+ m! m. d# D* k# x7 q, t" a) A - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");) k! B2 \: _" b, v
- ESP.restart();/ r* K7 Q5 ^1 a* T" F
- },[](){: a6 @! v/ \+ Q5 U' k- v
- HTTPUpload& upload = server.upload();
2 B/ f; L3 {3 a$ v - if(upload.status == UPLOAD_FILE_START){2 y9 p$ k, k# m" T) S
- Serial.setDebugOutput(true);
. u9 |9 l! y! [7 d( `0 p - Serial.printf("Update: %s\n", upload.filename.c_str());
, v0 c- t" B3 g+ V# C% W1 ? - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
" |5 [2 y7 m3 Z0 A2 D - if(!Update.begin(maxSketchSpace)){4 u I3 R5 I9 Q1 ]6 C
- Update.printError(Serial);
" [* g; C0 R& D& Q - }
c9 i% W+ h$ X - } else if(upload.status == UPLOAD_FILE_WRITE){: q; ~& _1 u) o5 X: c
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
1 T3 e4 F* b* Y' q9 ]! S% y9 ] - Update.printError(Serial);# e' V, j: i: o& o+ @; G
- }
0 g( G+ U. ?; h) V# v - } else if(upload.status == UPLOAD_FILE_END){0 f2 w7 M% i& ~+ p" T ~+ p! |
- if(Update.end(true)){
& b! F: y; C5 z - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
6 K S9 F& m( P* }( i0 U! b! o - } else {& N0 J( b0 Y5 g: z3 l% p+ E( E
- Update.printError(Serial);5 D7 N- g4 [# ]8 m6 U
- } A9 A4 R* U9 r- W
- Serial.setDebugOutput(false);6 X3 j1 X9 C% c
- }
( M: {, N4 R6 t" Q8 b& K" D7 A - yield();6 \) I6 h- D5 W Q, ~/ r2 D
- });
8 B6 j- c- w h1 T% ]) n! |! p6 m - ) c' d) V0 |$ V$ R! P9 \, r
- digitalWrite(2,0);
+ S! I: ?% Q: P) W - mainAction();
: P, }: a, N3 \6 s - if (digitalRead(0)){1 [. E! M: K1 B. z$ L* c
- ESP.deepSleep(0);; L, I2 \6 y2 L K7 \
- } else {0 R" v, W v% V; b$ p# W
- server.begin();
1 u/ e0 C& @6 U$ r' J - }
& B* M* \/ i: J/ `2 Z - }+ Y, l5 N2 X1 u& w1 i4 C6 N
- void loop() {
6 N7 j# p0 O4 }- f* B0 H+ F1 w, j - server.handleClient(); ~& ? ~- C0 u6 C% r$ u
- delay(1);7 s* l' Y: ?* Y4 c& W5 J
- }. A& P! \# N- [$ {: _5 d+ {
- String doGet(String url){
# F F# S) Y0 @2 E* A0 D+ e - if ((WiFiMulti.run() == WL_CONNECTED)) {/ v* t9 v) C4 P4 V1 e
- HTTPClient http;1 M; t( @+ F! y0 b: k" ~9 Q
- Serial.println("[HTTP] begin...");! E2 H0 i% {* I. B# }) P
- if (url.startsWith("https")) {% }3 l9 I9 B& I/ i
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");8 H0 I4 e* e* D4 C* t( I- u
- } else {- R; N* A* c/ y% F5 Y8 a
- http.begin(url);
# Y" x4 s: t1 r" q& @& m - }
2 C0 i4 u( |2 d2 `/ _( A i: x - Serial.println("[HTTP] GET...");5 {; i7 y: _" w5 `# i% }
- int httpCode = http.GET();% S! u. l; ~' A8 M6 c% G
- if (httpCode > 0) {
! P- `9 R' ]# t% M7 k1 t! I; c! W - Serial.printf("[HTTP] code: %d\n", httpCode);
* }0 ~! [" e% q" H1 }; ^; v7 G8 a - if (httpCode == HTTP_CODE_OK) {7 [" ~' X- H1 v
- String payload = http.getString();
$ h, v# R, ]9 N B9 Z9 U - Serial.println(payload);
: j/ V8 U' ]7 d% m: l5 Y$ O0 T3 ` - Serial.print("\r\n");! [' T1 q7 p; u+ G( P
- return payload;
' n' Y5 n2 q( S) E+ T - }
, t8 `9 }% v8 c - } else {
3 E/ V. ] T1 F8 O9 M0 E6 {7 S6 ^ - Serial.printf("[HTTP] GET... failed, error: %s\n",
+ l7 y$ v( }7 p5 ]5 X( F - http.errorToString(httpCode).c_str());
" o. w/ I, k4 d4 U+ x+ [0 O# s - }6 a K! a; U0 F) ^
- http.end();6 R8 b6 [; h/ O% y0 q* R+ T
- return "";
* e) I- j6 i9 A - }
3 v b: b l2 _, \+ W( G) ~% J - }
4 s! H2 a4 _( y6 n$ G( V - void mainAction() {
* Q3 y' U5 c, C7 D6 r - // 发送请求3 q/ N' M) `! g
- doGet("http://google.cn");
% l* A( }( U# h - }
$ T% T1 ^3 I0 p0 z/ L, a- e
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