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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)
6 M" r! k" S! f6 T& l- Q/ {$ b- #include <ESP8266HTTPClient.h>
1 P# s/ X$ X" @ - #include <ESP8266WiFi.h>
. [5 C- s, j2 f6 S- _ - #include <ESP8266WiFiMulti.h>6 [3 g7 d1 \/ ?3 x4 l/ h& l
- #include <ESP8266WebServer.h>
9 U3 `4 P9 P) V* s, g& F$ e( h - #include <arduino.h>
3 E. I1 Z6 x5 a/ R! S T - ESP8266WiFiMulti WiFiMulti;5 X! B N6 y' P1 q3 S
- ESP8266WebServer server(80);
, p6 l, l* R' n1 l - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";, B9 E5 H) I! x( M; x
- ADC_MODE(ADC_VCC);
+ j8 I7 T4 k6 a6 P3 X - void setup() {7 ]0 C: D8 }; y% A8 x
- Serial.begin(115200);
7 C. u* z$ z, { - Serial.print("\r\n\n");; L" o H# V/ }3 ]" ?
- pinMode(2,OUTPUT);9 b3 H* f2 R8 X, ~, ~/ l
- // WIFI, T. h. z7 ^5 T; S8 }
- WiFi.mode(WIFI_STA);" g0 I8 l: J9 f6 s G
- WiFi.hostname("Sparkle");1 ^6 d& q$ ^ ^$ m9 L2 @) @
- WiFiMulti.addAP("wifi ssid", "wifi password");
& K* j3 e* Q& A: \8 X; H8 o- F9 I - int tryNum = 15;3 }) B& E$ Y! W
- Serial.print("Connect WiFi");
8 b! F3 l5 i# u$ P2 e: b% I! v( Z - while (WiFiMulti.run() != WL_CONNECTED) {1 W1 z1 F) q: y) H7 [0 E( b
- digitalWrite(2,0);9 g# {# C( z* e; H
- delay(200);3 y+ o) k( ~8 n# S' ~, ^/ L
- digitalWrite(2,1);7 R7 M6 h* c, T! A
- delay(300);
* M" c. e" I3 z: |, R- h - Serial.print(".");
; b1 ]+ [1 L4 _# [8 `1 C - tryNum--;, Y* }: z) _0 M8 B" t
- if (tryNum == 0) {, @- {- V5 r3 u& V3 i* Z9 Y& U/ F
- // 1min5 @# G2 B+ o# l- {! ?
- // ESP.deepSleep(60e6);
, G7 ^- L, H# O) g: ?' L/ G+ T( C - ESP.deepSleep(0);
! @" f0 }% k" E4 Z - }: N, V p! Z# U m
- }3 m% X4 H( o# A( w8 W4 e
- Serial.print("\r\n");
: I8 d1 S% d, n" c# z' Y - digitalWrite(2,1);: f( I( `' y- V( y$ L; }3 K0 {& C5 ^
- Serial.print("IP address : ");
L1 V7 q" p! Q7 y- E0 C - Serial.println(WiFi.localIP());& E) y- G+ f2 s1 l- l: f; D+ o
- server.on("/", HTTP_GET, [](){
' Y9 @ h. n' a# Q - server.sendHeader("Connection", "close");
1 V% O/ M1 e7 Y1 {) n% b - server.send(200, "text/html", serverIndex);
0 a8 a; H7 ^* c( \" I5 q. F' N - });* R! F! {" C( ?6 ~" ^5 @+ y
- server.on("/update", HTTP_POST, [](){, u/ \+ `& k. e/ L1 Q. d2 g( m5 K, M% s
- server.sendHeader("Connection", "close");
0 n4 w3 z8 J8 n! n) ^# j" A- R - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
. z4 `$ Z( F, e6 a8 ] - ESP.restart();) x. m3 O4 C ~# n- Q7 @( y5 H- M
- },[](){
) w0 p5 H: E4 Y9 Y% e1 e - HTTPUpload& upload = server.upload();: f; A' H7 j! ~/ o4 \, h4 A
- if(upload.status == UPLOAD_FILE_START){
2 p7 y/ A% B5 [: e4 w9 H - Serial.setDebugOutput(true);0 T8 p1 v. v* t) L' O& C
- Serial.printf("Update: %s\n", upload.filename.c_str());
' e/ z) n/ F% G. J3 S - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
! A* J: f1 n8 u - if(!Update.begin(maxSketchSpace)){- @1 s( b9 m9 R5 I1 W, b
- Update.printError(Serial);/ M' J- j/ N% \- r
- }; e; [, ]3 a3 @' y
- } else if(upload.status == UPLOAD_FILE_WRITE){
8 _9 y( t+ s$ s6 y# f - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
. p& q, _8 u0 X1 O5 q- R - Update.printError(Serial);. X. h! x' V' }& b9 J
- }
2 j: Q+ ^2 w, k2 J! c/ m& S3 O9 L - } else if(upload.status == UPLOAD_FILE_END){3 h. w7 l& E: n
- if(Update.end(true)){
2 j# D: c7 ~. v. B. a3 Z - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);( t- [# _/ H' p; t; c2 ?
- } else {
) F5 p8 d1 R' V3 `) x2 B - Update.printError(Serial);
1 I) x3 i' R# p/ A9 i8 x% [: n2 D - }
! T9 I5 h6 t1 E$ Z" ] - Serial.setDebugOutput(false);
9 T/ R; @- C: h1 d0 t& I7 m - }0 s/ `% X* Q% M+ [/ h# ?
- yield();
2 ~* G: G! O# K. n. x: i u/ K - });2 S0 v' c5 d2 p, [
- ( B9 J. _6 S/ k+ U: g
- digitalWrite(2,0);
! h/ O( G! {- s/ S5 Z* Y( i - mainAction();; V) @) d2 D( d- M' _! e* n6 b
- if (digitalRead(0)){+ l- ?8 F" S3 [- {' s; l' F6 _& T
- ESP.deepSleep(0);
* P, @/ V. |: h% e8 x. S - } else {0 T& {# N! I: p% u
- server.begin();. }$ U2 H4 d0 | N
- }% q3 Y4 `7 |4 b7 N9 m t
- }6 H. \" v& X6 d8 h' `0 G
- void loop() {
( ?& Z2 e) t/ w5 c - server.handleClient();
) i# u: J! T* {& X, R6 H8 r, y T; s - delay(1);
7 h: `' M' \/ X - }2 B( F7 y" u6 }
- String doGet(String url){% d4 r9 ^ \. U( s
- if ((WiFiMulti.run() == WL_CONNECTED)) {7 v; d7 r3 g* h" q: G) r
- HTTPClient http;) E+ C2 O! Y& [
- Serial.println("[HTTP] begin...");% W2 \3 [4 E; y ^, R) W1 n8 ?
- if (url.startsWith("https")) {
8 P- U' _8 U$ Q! M/ x N - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
- L0 G3 \0 O$ f! s6 r) Z" }/ h5 X: { - } else {
2 |) [; e. _/ b3 w3 o - http.begin(url);$ Q1 {/ w! m( W! f2 y
- }( g3 R( L' F, O) f
- Serial.println("[HTTP] GET...");
) J' b) A+ K) R0 P - int httpCode = http.GET();
, q% P* X. A- U' f5 H/ ^ - if (httpCode > 0) {
( \$ a% l" S2 M - Serial.printf("[HTTP] code: %d\n", httpCode);! i5 z* P& h6 U1 k6 B4 J7 _) ?* ?
- if (httpCode == HTTP_CODE_OK) {2 r S" [0 H+ n% H: h6 M
- String payload = http.getString();. J: M0 ~+ R* m! U
- Serial.println(payload);- m. k& l+ I/ E9 H/ {4 q
- Serial.print("\r\n");
) I1 l5 W x1 M6 f - return payload;
) Z& t- I' M2 e$ g9 q7 n - }1 _: S6 f: a* C
- } else {
( @3 K7 s9 B8 h+ H& i$ r/ k: r9 m+ f - Serial.printf("[HTTP] GET... failed, error: %s\n",6 y6 ^2 d& o% t
- http.errorToString(httpCode).c_str());# A, k$ l& d" f- M) H
- }7 b' Z) D" L+ L' i5 N: S
- http.end();
t' a! I6 N) x m4 q: X. Z - return "";
( Y1 T g8 \0 F7 F4 k y+ s8 K' o) Y - }
b$ i: _% b x7 [4 P& c5 ~% A - }: M8 O% T' R& d- ~
- void mainAction() {
) V5 y/ U, z8 F L3 k - // 发送请求
7 d! e$ Q; `, P( X0 d2 g/ N3 s - doGet("http://google.cn");
6 c5 W: p4 G2 a' F - }
% f% u4 p) K+ \6 H
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