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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 K1 R7 A: t: h, v- #include <ESP8266HTTPClient.h>& O! ^( x+ U q( z( @% r: S
- #include <ESP8266WiFi.h>. H8 [+ `, P+ S1 N" i+ ?1 L
- #include <ESP8266WiFiMulti.h>4 y; {, K: d; [, ^/ |( [7 o
- #include <ESP8266WebServer.h>4 a( z' }) ]& y3 Q" Y8 z
- #include <arduino.h>0 N! ^3 `; _# G. j
- ESP8266WiFiMulti WiFiMulti; l4 P6 W. _; @' X/ a2 v4 y% w
- ESP8266WebServer server(80);6 E) ?" } w& w
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
4 ?, d# e4 P' T. @! ~ - ADC_MODE(ADC_VCC);
$ R v7 W# R; ^" h; p3 k b - void setup() {
8 K" u4 u3 | U2 V& q* s3 g8 J; i ? - Serial.begin(115200);/ Z9 g% N! q# a [
- Serial.print("\r\n\n");
/ Y# k* W% M9 @) e7 I' | - pinMode(2,OUTPUT);
$ R* w$ i3 I4 _ - // WIFI
& h; i2 E# }( N6 z% L; M - WiFi.mode(WIFI_STA);
" m. m9 R2 m( |) R# Q - WiFi.hostname("Sparkle");
+ G, K, R0 ~. X" _9 a - WiFiMulti.addAP("wifi ssid", "wifi password");8 l% ?9 G% n% P9 x- Y
- int tryNum = 15;
$ H+ q: h8 i* i2 _( \ - Serial.print("Connect WiFi");- j2 t U5 o6 Q% E2 O1 e0 h) _
- while (WiFiMulti.run() != WL_CONNECTED) {$ a& w. T9 P0 p. j* I( s
- digitalWrite(2,0);
, R1 Z- U* e |% g3 \5 i* W7 k - delay(200);; [; v! b6 p: ?: Y9 I
- digitalWrite(2,1);& T, Q# g- z2 Z! K5 t3 p
- delay(300);
& u. I8 y+ L$ F2 O5 X9 D - Serial.print(".");
4 H5 a+ l$ f3 O+ {4 } - tryNum--;% p8 E% b0 n: v% s [
- if (tryNum == 0) {
% O$ ~0 n; Q1 o! u; T9 t - // 1min [% O: ~$ p$ T1 ^4 J- j2 L# M! k# |
- // ESP.deepSleep(60e6);
) T, D2 A- _, ?/ y, h - ESP.deepSleep(0);
( f2 |4 C$ v8 H- S2 I# `$ x0 c - }
8 ]2 N! ?$ m- u+ {, i - }
2 F4 U- V& B. [1 _3 Q# o, Z3 K - Serial.print("\r\n");& U* \" W8 z# d( d
- digitalWrite(2,1);
: U ^6 G" k; s6 h% s, s8 Y% M, O - Serial.print("IP address : ");
* k! H" I2 X7 I1 @+ z( B3 I2 r - Serial.println(WiFi.localIP());
6 s) V+ p# C9 r2 C, e - server.on("/", HTTP_GET, [](){# |5 q0 H- U4 a+ I" d
- server.sendHeader("Connection", "close");
9 |, a8 H' ?+ d3 s6 a - server.send(200, "text/html", serverIndex);
) X" h( [% X% B! y$ ?, u0 }" L% b/ _ - });
* x" H6 z6 q2 F; F/ Q - server.on("/update", HTTP_POST, [](){6 e) y/ V- w. g) l" Z6 g
- server.sendHeader("Connection", "close");9 |5 G5 o# n* T7 p
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
7 @$ f* U% t! D( ], ~ - ESP.restart(); Y9 h! [' @' K! f1 K6 I5 y
- },[](){3 k1 l* T2 b5 q% J# g. h4 `& k
- HTTPUpload& upload = server.upload();
$ v4 H/ C( F; C - if(upload.status == UPLOAD_FILE_START){6 D5 J2 B) M* D8 F
- Serial.setDebugOutput(true);5 X4 V0 v% B1 v9 }
- Serial.printf("Update: %s\n", upload.filename.c_str());1 N6 K0 P% v X# Z8 u2 n$ h6 s- P
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;0 \8 k! H; l' W. [( }$ H& @6 N
- if(!Update.begin(maxSketchSpace)){
" D3 `$ q' T; q( s - Update.printError(Serial);# @0 s4 r; f' _; `
- }) E5 ^% ~# w+ b6 m
- } else if(upload.status == UPLOAD_FILE_WRITE){
& N; n+ M- e# Y9 [4 u - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
! B! Y9 D) t6 `' e. R - Update.printError(Serial);3 m+ f) ? \9 O5 {9 ?+ `7 b
- }
- z* i2 ~- L, h$ y* Z0 X, t - } else if(upload.status == UPLOAD_FILE_END){
4 g% e6 P$ Y! N3 d, H - if(Update.end(true)){
/ p+ ^/ m$ J* b' Z4 o - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
% O% o, N* a3 t3 ]: d( T - } else {# U ^9 E/ \; r3 U, w. t
- Update.printError(Serial);
1 n+ |2 k. c) N; x+ x - }
! y3 \* N% p( t - Serial.setDebugOutput(false);2 q; \$ Q$ l1 w" A
- }
. a! x1 A9 i7 e6 _# q - yield();
" F8 C9 T. V9 m - });
# b- }% j4 B+ j- R - ) m; B4 G& E$ g7 [
- digitalWrite(2,0);" a0 W: h% l+ p0 K9 D! F
- mainAction();; u6 O& C0 ]( @. N3 p5 n1 ?7 @
- if (digitalRead(0)){5 ^1 M1 a; }! p3 }
- ESP.deepSleep(0);
: M) r/ q b# h - } else {7 x4 l/ y6 V" m7 @
- server.begin();8 w( e4 T- ^# o4 _
- }
: I! f- J2 A8 s! { - }+ W# _" u3 c9 s3 C5 }0 a
- void loop() {
$ I7 K0 P; U6 X3 o) z3 P - server.handleClient();
8 q+ e3 b6 Z7 e - delay(1);
8 a" a$ ~/ X$ _ - }9 I- r7 ?5 }5 C
- String doGet(String url){& _! G: { u" w# r0 w2 {
- if ((WiFiMulti.run() == WL_CONNECTED)) {0 ^ b/ D9 Q \4 A# \# C4 f2 _
- HTTPClient http;( ]9 T) b/ u5 U0 X' Z
- Serial.println("[HTTP] begin...");
% J9 f0 u; a( s - if (url.startsWith("https")) {$ u( b% ?3 K! O2 r
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
; t4 i( N9 h1 x - } else {
# S ]' J: e% D - http.begin(url);
( E2 b' h( D! q- g+ Q# x - }6 C% i7 Y: u t# P7 o0 T; b
- Serial.println("[HTTP] GET...");' S2 e8 m- w! b! Q
- int httpCode = http.GET();
8 {6 e" z& n% a. P8 ^ - if (httpCode > 0) {
- i; L+ w4 H9 p* Z8 c$ t: U - Serial.printf("[HTTP] code: %d\n", httpCode);
. _5 \4 x* ]" `' ]1 a9 z& Y - if (httpCode == HTTP_CODE_OK) {3 y8 Q3 u7 H$ g7 h! U: x- Z, e
- String payload = http.getString();
* @4 T) {+ p+ T' Z6 U - Serial.println(payload);
* U8 V+ g5 \, W, e9 ? - Serial.print("\r\n");$ O; S$ v, x" Q; E4 }5 t+ |
- return payload;( m9 f0 P7 a% s. P; y& J5 _9 G
- }- @; P, T6 _4 E
- } else {
9 a: h R2 ^8 c' C/ b: X# g - Serial.printf("[HTTP] GET... failed, error: %s\n",
9 m" ~$ R/ w) J" ^% ^ - http.errorToString(httpCode).c_str());" M& y$ V( O+ S7 o! l1 t
- }: u8 V5 m: S, U$ A
- http.end();4 A1 r7 j3 h2 L6 `1 j' B
- return "";
3 P/ B* e: b/ y - }; y/ @% q1 l9 j. ^: u. _
- }: Q2 G" y" C3 M8 S% g* n$ V
- void mainAction() {; a: L; H3 n. i# x3 y8 M
- // 发送请求
/ O7 h, C/ q+ D% O- j$ w - doGet("http://google.cn");# p6 r3 {$ Y6 P3 T4 i! S
- }
# i J: g7 j; A4 b
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