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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)- @; }' P0 j' u3 z9 t% K
- #include <ESP8266HTTPClient.h>5 @# P* p- W z' D
- #include <ESP8266WiFi.h>
4 ~! G1 Q9 q9 C% t6 s# k - #include <ESP8266WiFiMulti.h>
+ h8 Q6 w4 \( ]; G3 {6 K# ]' X - #include <ESP8266WebServer.h>( l4 ]. b( y ^5 W" h9 b) A
- #include <arduino.h>
8 c4 x3 G+ r$ s- | - ESP8266WiFiMulti WiFiMulti;& I1 d0 y: ~& B i# H
- ESP8266WebServer server(80);
: ^8 C; \$ A3 q8 B$ B# D8 P - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
5 f( S! p6 _$ A( m2 ] - ADC_MODE(ADC_VCC);* N0 ^* p# S8 G
- void setup() {
, J9 ~/ B T: _2 S/ I - Serial.begin(115200);- ?0 v8 N; C6 S$ ?' ^( B
- Serial.print("\r\n\n");! _ q1 r" O. ~8 G6 q$ Z
- pinMode(2,OUTPUT);/ p# L7 f8 C7 e: d: ^; H
- // WIFI
6 [: \' Z) C* p4 t% [9 c! U! R - WiFi.mode(WIFI_STA);* A( Q! k2 f3 o/ u
- WiFi.hostname("Sparkle");
: I' T, Q) T* v O - WiFiMulti.addAP("wifi ssid", "wifi password");% M) x0 Q& _! V/ F- p& F
- int tryNum = 15;
. k3 N$ p) b# `9 V - Serial.print("Connect WiFi");6 j n$ l6 |/ s' A2 d6 V
- while (WiFiMulti.run() != WL_CONNECTED) {
' B6 [; k3 }/ g! P, W2 S - digitalWrite(2,0);
& \7 g) w3 J* y- e' X6 f" y - delay(200);7 m4 l; i, T) r8 a9 O
- digitalWrite(2,1);
& _/ t$ L4 P% i9 }& m. f5 T - delay(300);2 [3 u8 V( m. ^8 b
- Serial.print(".");
# h& R: Q/ Z1 ^5 u$ `2 } - tryNum--;) k: V5 L+ r* Y+ l# v5 Z
- if (tryNum == 0) {1 L$ Y4 L6 L- l# |+ e2 C6 Y
- // 1min6 s2 L& P5 p4 Z3 A; _' c/ V
- // ESP.deepSleep(60e6);
* \. ?2 M$ r' W8 K* G* U0 n8 N Q - ESP.deepSleep(0);& S+ k' Z- a& d( @6 L5 _; p/ L* |
- }
# N- e. {! f% a* ] - }5 G, L, R3 Q1 O
- Serial.print("\r\n"); A/ S0 J5 s8 b
- digitalWrite(2,1);
: G2 t% U4 l3 @ - Serial.print("IP address : ");
3 S6 m( l2 b1 ~0 g4 b( w - Serial.println(WiFi.localIP());2 a4 T" w# ^8 c& {$ L& {& o: S' z
- server.on("/", HTTP_GET, [](){5 I4 u' l3 n E
- server.sendHeader("Connection", "close");
; ^3 p5 e# j$ u - server.send(200, "text/html", serverIndex);# R, B" k& G& |2 D" Q. o
- });
0 k+ }/ t% S- @( g' v - server.on("/update", HTTP_POST, [](){
1 W0 Y" r1 l6 f8 h& _" s - server.sendHeader("Connection", "close");
1 g' Q/ O. i; ~* P! j - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
- o l. M$ {2 e: p9 b - ESP.restart();
( Y5 @. ~- g* K6 W! z - },[](){# v% w0 g+ ]% _4 `4 p
- HTTPUpload& upload = server.upload();- T# y9 Z! t+ H
- if(upload.status == UPLOAD_FILE_START){! K& A: W/ U8 T6 `5 ^ l6 _6 Q
- Serial.setDebugOutput(true);
7 W! K' I( U4 e) o4 J4 C - Serial.printf("Update: %s\n", upload.filename.c_str());
: ]; M+ @4 f8 a5 S/ G: t# s$ B - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
: u9 H0 n1 p- `6 F3 {- f - if(!Update.begin(maxSketchSpace)){
: c/ k0 W0 f; s0 u - Update.printError(Serial);
+ U/ i: Y$ z J* k - } w! Z+ |& J/ {; z6 s$ l# A) Q0 Z
- } else if(upload.status == UPLOAD_FILE_WRITE){8 P. p: H4 [* T6 A8 k! Y
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){2 `1 M0 D9 y' D8 p! I/ a
- Update.printError(Serial);5 c$ N/ I. Z' `4 i
- }
# N! B/ c' G9 u5 W/ N9 r* k9 q - } else if(upload.status == UPLOAD_FILE_END){9 j* p M g" N
- if(Update.end(true)){3 \6 Y" C5 e3 L& [9 {: y0 i
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);) M* T) z5 D! s& A B
- } else {
- z; m2 W: v* {8 t( W3 L$ g - Update.printError(Serial);; C9 T' S0 z9 I n A
- }. t' c6 f6 H7 ^% {! A, h9 p
- Serial.setDebugOutput(false);" N: e; s+ W9 @9 F3 [. _
- }
" `- s( Y% M$ \9 X7 }! D - yield();1 G4 H p% N& H \
- });* ?! |- Z% E. w, `% P x
- " e6 e) x6 s. H( b0 n9 O' m
- digitalWrite(2,0);2 c' C( f3 w5 ^ Z$ L ?
- mainAction();
2 d2 {" ~6 n) l8 e; w E - if (digitalRead(0)){
! `% U- @, S5 J( ]6 g: y$ k. w) e/ c - ESP.deepSleep(0);
0 B2 V/ e6 p4 {. N0 x6 @ - } else {
0 |, o9 ]) C1 M - server.begin();8 L8 q1 e" R) Z& L/ e
- }
4 [7 j+ I$ P7 i$ x9 v - }4 {3 H+ D0 |- l3 _$ ~. x
- void loop() {
4 N5 Q$ _ C# j, S+ f - server.handleClient();
2 h- o- a3 a3 H - delay(1);. F7 k& y0 \( l7 r+ T( O1 N
- }% e) x6 v, ^$ C; L) T
- String doGet(String url){" a- A; C! V. U5 L: x
- if ((WiFiMulti.run() == WL_CONNECTED)) {
& ~2 S! F. r. x/ S: T - HTTPClient http;1 { ]( c. Z% C/ h
- Serial.println("[HTTP] begin...");, x8 |: X! k: M* ^0 R X' y5 }
- if (url.startsWith("https")) {
) ~+ Q3 e8 x5 \ - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");' G, c* Q+ D" Q: o/ a# `
- } else {" C+ q' D+ L1 h6 r: I! e
- http.begin(url);) o% _9 F- N( o4 C4 W2 C
- }; H1 v0 q4 ?& l3 U* l
- Serial.println("[HTTP] GET...");
" V! N( J8 x* t3 C - int httpCode = http.GET();
; |9 R2 F4 [6 i' `+ }+ { - if (httpCode > 0) {
) ]0 a( D1 t- H6 m% z - Serial.printf("[HTTP] code: %d\n", httpCode);, p6 |/ N* {$ {
- if (httpCode == HTTP_CODE_OK) {
3 |) G0 M8 h' X0 |: l& [$ [5 T - String payload = http.getString();
3 @9 m. f7 k; ?6 N, @ - Serial.println(payload);/ g5 _; A7 l" y8 J9 ~5 ^1 P
- Serial.print("\r\n");' L& Z7 t. t$ S& w% G$ D
- return payload;
" b2 p9 l0 [2 w+ l- D - }! ]5 O0 U% P) C- p3 P1 ^. ^
- } else {1 }. w8 B5 u, I) L0 z$ ^
- Serial.printf("[HTTP] GET... failed, error: %s\n",! _0 O% M- c: c' i& c% C1 C1 X
- http.errorToString(httpCode).c_str());1 |: u: Z+ H$ | {8 O- f
- }
# A% w2 ~0 s: V! d/ a - http.end();( k* [: r% a$ F: F2 c% v
- return "";: L, l6 p( H1 V" ?. Z" f
- }
9 T8 @, x7 @4 m4 i4 ?: f- b. {9 N - }; d7 H, P6 L Q: B+ p
- void mainAction() {! H8 Y6 `; H. F4 w3 x% H
- // 发送请求% O7 i' b5 l% F1 x; I, m
- doGet("http://google.cn");% u. s# M6 `* R6 f/ L) t3 h
- }
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