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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)
( t1 P$ }2 i5 L8 l- #include <ESP8266HTTPClient.h>
; _! l' F/ \" F8 K* a6 N: l( v: p - #include <ESP8266WiFi.h>) l1 o2 x8 w% s+ e! d
- #include <ESP8266WiFiMulti.h>3 M0 }1 A0 y: X' [8 J
- #include <ESP8266WebServer.h>
$ Y2 r# a U5 A" \: o2 y - #include <arduino.h>
1 }/ T6 B0 I* o - ESP8266WiFiMulti WiFiMulti;) J* W$ x6 |" y
- ESP8266WebServer server(80);
& I# J2 v: Q# z6 ^5 _/ e8 i- U- R& D - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
- m( L$ s) l, a* G& B N - ADC_MODE(ADC_VCC);
) s! k% ]( r7 o) } - void setup() {
6 T' u/ O r4 |2 z" v5 K1 Y) ^* U - Serial.begin(115200);- z I, G( S5 L% @8 g
- Serial.print("\r\n\n");
- w! Q6 Y5 @4 ?9 B1 y - pinMode(2,OUTPUT);
1 ^5 b/ P9 U5 q% V1 S+ E% c8 k' R - // WIFI
: x+ X5 p2 I8 o; e7 b! C - WiFi.mode(WIFI_STA);# y% ~5 U: n6 }
- WiFi.hostname("Sparkle");4 {* b, o+ O i6 `0 K
- WiFiMulti.addAP("wifi ssid", "wifi password");
9 x" j, x$ z; N3 H - int tryNum = 15;3 O$ ^- T9 ?4 }. ~6 N7 W3 I
- Serial.print("Connect WiFi");
- o) n2 \) A. K6 A* b/ X9 ` - while (WiFiMulti.run() != WL_CONNECTED) {6 `1 _! E9 ~5 W% { F
- digitalWrite(2,0);
, B8 ^# i& r! f" I3 A/ x* g - delay(200);
2 I# P* f' A# d$ s$ ~, a; u( X - digitalWrite(2,1);* R [& v' J4 m" {
- delay(300);
4 X# w3 s! T* P/ B8 [% W; b0 h - Serial.print("."); ~1 ]' L+ b R
- tryNum--;2 g) k+ f. z" d$ q
- if (tryNum == 0) {* s8 Z, y' h8 w6 m# ]
- // 1min2 ~7 H+ ^& ^" x9 z6 e$ L
- // ESP.deepSleep(60e6);
) M3 Z- V( m3 u$ g - ESP.deepSleep(0);
1 K! A1 y5 t) d D) T/ c - }
9 ?# y7 v. s* V% X% T2 b" |5 j$ ^ - }
& V3 N* ?. B: I9 c - Serial.print("\r\n");
+ {" c6 _3 l1 d1 m" M - digitalWrite(2,1);; t: w* b: y1 Y3 W" P' @% e
- Serial.print("IP address : ");2 l0 ]9 J8 c$ Z. Q% E* R8 B" g
- Serial.println(WiFi.localIP());' I) K# S+ J. I: M5 p4 i O# N+ e, ~7 w
- server.on("/", HTTP_GET, [](){
" k9 @$ z/ H7 s3 D- L - server.sendHeader("Connection", "close");
3 e- F2 D: j. B9 D/ [' J8 Q) B - server.send(200, "text/html", serverIndex);% q; b1 s8 f- H3 c
- });
$ X2 ?' a& S$ z7 q5 C2 v8 X7 O' `7 K2 j - server.on("/update", HTTP_POST, [](){/ z- l' @; s- Q0 B, W9 [% J2 x
- server.sendHeader("Connection", "close");' {3 s: w& w2 v1 c+ p
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
* J/ v# n! Z7 M d" t j) Q - ESP.restart();) ]9 f( i# o" k P% E/ ^
- },[](){
, e. I. q4 u7 Z5 o+ | - HTTPUpload& upload = server.upload();& j, \4 r5 F! Y- Q
- if(upload.status == UPLOAD_FILE_START){: V- k4 p( j6 Y* ?# k
- Serial.setDebugOutput(true);
5 O/ R4 p# P8 n- q$ g7 G! B* u - Serial.printf("Update: %s\n", upload.filename.c_str());
1 q8 f- e2 ]. N - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000; s4 F" U! _# B4 F* T: J, ^
- if(!Update.begin(maxSketchSpace)){( {. b: a' j, H# C9 ?' [, _
- Update.printError(Serial); j, `5 |8 n" z+ O
- }* V5 ^7 c7 a8 m# J( h+ K
- } else if(upload.status == UPLOAD_FILE_WRITE){
( D( X! S. J$ E - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
9 v) }% w' @3 E4 D - Update.printError(Serial);
A' c& H$ S: J; o3 n, c8 O0 h - }
( A5 Z! a. t( m2 [; m0 N$ F, ]+ l0 i - } else if(upload.status == UPLOAD_FILE_END){, s) D% z* e! H+ y- W |
- if(Update.end(true)){8 m# ~: t* r* } m" E
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);8 z' s* z7 F% f/ p I
- } else {
7 m0 B" @( q+ {! c; c# c - Update.printError(Serial);
% t q; F6 Q: m% L - }
) ^! t1 F9 A( U3 ] - Serial.setDebugOutput(false);3 j6 A7 s5 X+ Q! S' V: N6 @3 m
- }
. c# a, l) B( m1 `6 Q - yield();( m: l1 k9 p5 k9 [0 n/ F
- });$ D! Y7 V& f3 n0 \- g9 |
-
$ g8 p! L* T1 x) ~ - digitalWrite(2,0);
- l$ T5 D f0 l, l - mainAction();6 Z9 w6 ~& a0 } c; g9 `, z
- if (digitalRead(0)){ \& P% l7 ~7 f0 o h
- ESP.deepSleep(0);
& N! \6 {$ ?( e* F - } else {
! X/ G# Q; l2 Z' ]- }9 E) W - server.begin();
- ], s) B" C- l0 l - }
$ {5 c/ Z0 r/ I1 e$ p* a - }0 z1 D4 A' n( ?+ n6 \4 G
- void loop() {) d# }! D3 J+ J6 X. d( z
- server.handleClient();
3 S* y0 [" k T0 W - delay(1);
- V" e8 D& G* S2 j5 b& b- V4 r - }0 K/ ]0 X- x" f; g0 f+ }
- String doGet(String url){( _% A4 I: p* b) i& a6 p
- if ((WiFiMulti.run() == WL_CONNECTED)) {# t7 L( c0 T/ H+ n5 ?3 t
- HTTPClient http;
- J1 |5 u- X& f7 s+ X. Z2 c+ c - Serial.println("[HTTP] begin...");2 Y/ B: Z* d7 I, \, o/ }3 U2 j* h
- if (url.startsWith("https")) {
9 w( n3 ~9 h# Y - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
; G1 d3 \: E( m9 m2 h4 d3 F n - } else {
2 O4 u. }, f& }. c - http.begin(url);
3 I" _, U$ T% d1 A: r2 r - }
% E/ b' ^& i R/ t$ i Q" ^$ ~5 \. o, x - Serial.println("[HTTP] GET..."); G! J7 K! u( f" I: @3 Z o& `4 N
- int httpCode = http.GET();1 j2 s$ {7 X0 M- p7 G
- if (httpCode > 0) {
1 j+ _+ \1 R; p" A" G: t - Serial.printf("[HTTP] code: %d\n", httpCode);
$ v2 { f* Z: d8 c - if (httpCode == HTTP_CODE_OK) {
$ ~8 Y5 l7 w6 ]2 ?" H - String payload = http.getString();9 [# O2 H( S; h# m/ q! c/ u5 _4 I2 y
- Serial.println(payload);; J+ ]/ f# l" _) l) ~
- Serial.print("\r\n");
h/ u9 a6 i& u0 e9 ~* s - return payload;- R; a( c2 Y3 ^/ k! M; T' q
- }$ l2 `9 X+ `: S/ l2 K
- } else {/ }9 W, x! a; Z+ l/ ~6 ^: P- t
- Serial.printf("[HTTP] GET... failed, error: %s\n",4 m% Q |' k( O [
- http.errorToString(httpCode).c_str());4 l) |1 L! A9 `5 t) i
- }$ h$ G7 `; D3 U# Z. ?3 R" k! E7 s
- http.end();
# R) y8 Z& e+ x - return "";
+ O2 L$ ]1 D1 `3 j# E - }
! ?5 @- V5 a6 N. Q8 \ - }
/ n( `+ }& ]. H" U - void mainAction() {# n" i. Y Z9 w: y" g7 X
- // 发送请求4 Z9 V1 W' `7 I+ e3 g1 `1 `
- doGet("http://google.cn");( l4 u) p4 T% X1 w- i
- }9 Q5 q$ u$ G2 C- V& \4 ?) h" U4 d# a& _
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