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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)3 ^5 {3 @1 L+ X3 |. H: @6 l
- #include <ESP8266HTTPClient.h>
7 K- j# v0 K# L5 |9 ? - #include <ESP8266WiFi.h>$ B& ?* d- l; h# M( U9 b' o' S) d
- #include <ESP8266WiFiMulti.h>
- ^1 i8 Z6 `3 w, R - #include <ESP8266WebServer.h>1 W. J1 R9 W3 M0 L) |7 [
- #include <arduino.h>6 p+ k3 z3 r0 |8 v/ g* k
- ESP8266WiFiMulti WiFiMulti;
& j [* q" h5 u - ESP8266WebServer server(80);2 V8 G( z9 J- I# {8 Z9 U& Z4 D
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";+ ]+ g* i: E2 S* N! ]
- ADC_MODE(ADC_VCC);% U$ Z; i* \8 S# `9 ~$ f" q% h
- void setup() {( ]& K4 C4 Z6 N
- Serial.begin(115200);* Z! u5 F* [6 O# j
- Serial.print("\r\n\n");
" c% s, T' \- W0 P5 t. U - pinMode(2,OUTPUT);5 L( A0 ?' V: s( I7 W" h: Q+ {+ A# |
- // WIFI6 d! {1 c3 B3 a' \9 {+ ^+ h
- WiFi.mode(WIFI_STA);0 U5 R3 F* m, c% r3 t+ P) f8 E/ w
- WiFi.hostname("Sparkle");% g8 R, }* m6 c* z; E
- WiFiMulti.addAP("wifi ssid", "wifi password");
. z5 E" w' S' { - int tryNum = 15;6 O6 i9 r' `+ n* E( F" o, B9 y! s
- Serial.print("Connect WiFi");
7 c& C+ a1 p3 J8 r6 U. Q8 y- J - while (WiFiMulti.run() != WL_CONNECTED) {$ F- t4 q! {, g% `$ l$ S
- digitalWrite(2,0);" P( w5 {! p6 G: H- [
- delay(200);$ U- Q$ H4 K" z& K
- digitalWrite(2,1);
# `: O9 ]8 |' e% O" f! r - delay(300);4 d J# K1 \. w @. J4 m. ~5 n
- Serial.print(".");) r3 `! e$ b5 [: B( }- X L
- tryNum--;
. M9 [; _2 o& V0 @# D# O. K - if (tryNum == 0) {
; L( R6 u. w. V! X! P - // 1min+ ]' x9 {# S7 e* f+ |" e/ c1 i, s
- // ESP.deepSleep(60e6);
+ c, K) Q" }% ^/ J' @1 x8 J/ J - ESP.deepSleep(0);
& w2 A( Y9 b2 j" c. y5 t - }. @7 R4 S* n) Y$ b
- }; k* Q$ z9 i8 B; t8 n
- Serial.print("\r\n");: f' Y1 N, p% z/ F
- digitalWrite(2,1);- e, g% w- V4 b( [) H7 ]- }6 R
- Serial.print("IP address : ");
5 z2 J5 Y! J6 x( T/ k - Serial.println(WiFi.localIP());- Z2 m/ q9 D: |3 r/ K
- server.on("/", HTTP_GET, [](){
6 M& x/ c8 U c! V( M - server.sendHeader("Connection", "close");9 }# O, y. C. _+ ~& Q& O0 z
- server.send(200, "text/html", serverIndex);1 F# K7 Z$ ?9 Q, a+ E& I0 F
- });0 y# g5 {4 l! L: H4 J
- server.on("/update", HTTP_POST, [](){( T. p% X: _" B( e$ ]( w" a
- server.sendHeader("Connection", "close");) ~3 g/ j! @- G# [& n
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
6 n" Q- Z1 H: f* l; E" Y) r7 H4 Q - ESP.restart();1 W9 h" M6 D- ~* h. V
- },[](){
! O6 t' w' J" N+ \# j - HTTPUpload& upload = server.upload();
* T0 z# y! k) ^7 z o( S3 s8 s9 } - if(upload.status == UPLOAD_FILE_START){& B; i" t3 T$ n! W1 K: i
- Serial.setDebugOutput(true);
( R1 y5 R# _8 A - Serial.printf("Update: %s\n", upload.filename.c_str());; g5 _3 t! u9 l$ q; J+ s# C& v9 ^- F
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
+ f8 m {0 v) U* z: M - if(!Update.begin(maxSketchSpace)){0 g) l/ k- a7 |% K+ g" u' j5 [( o
- Update.printError(Serial);8 \0 h1 Q2 S5 b
- }7 D8 L% I3 d8 ~* q$ _( H
- } else if(upload.status == UPLOAD_FILE_WRITE){8 t, C/ t# Y+ `5 P' B
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){ P- [9 ^. Z& W1 n2 v( X
- Update.printError(Serial);
$ T' O) t" x' ^' T9 A - }
- \6 ?$ R- a: O: E% e2 x - } else if(upload.status == UPLOAD_FILE_END){+ a0 g* E& l7 S$ \
- if(Update.end(true)){ E; q* v B+ t$ r% i
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
1 _& o' q& W, ?, C - } else {6 q6 @% x: I) _' @# D
- Update.printError(Serial);
- s5 x; _$ p4 _. p - }! r, _& w. [8 D" j
- Serial.setDebugOutput(false);3 H f" c2 P: V# ^8 r4 y2 V; J
- }
2 q$ f0 `: l/ q+ h, J - yield();
' E2 u: U4 H8 y4 |, I4 l - });
. \5 H7 y( x8 _- W# P" x" b - ' Z' H4 T2 \% h
- digitalWrite(2,0);, Q7 D$ L: z K$ K* r
- mainAction();
" H' A! O( y6 Z5 { - if (digitalRead(0)){5 {! p# @2 \+ G0 X
- ESP.deepSleep(0);
6 L9 ?5 T# n, m% x - } else {
7 r. n; B& G ~( _ - server.begin();
5 g! M" J! S f% D - }
% X2 e4 |( P6 h$ ?3 s6 Y - }0 }& [$ t+ F9 O' N9 j
- void loop() {
8 ]0 ?+ V" a. z O- @ - server.handleClient();
/ ?3 y2 c. l- B8 h% J* r% z - delay(1);
" `) v. [/ J4 i% X - } s P0 b# H/ ?
- String doGet(String url){% ^8 O# }2 {% j* Y- K
- if ((WiFiMulti.run() == WL_CONNECTED)) {
W) b# E/ x. e: E- I - HTTPClient http;
% h8 Y: K. i/ H3 D - Serial.println("[HTTP] begin...");
# I/ \, ]% @! `9 X- ]- m( v1 x - if (url.startsWith("https")) {* e, x1 q6 ^3 y" P9 t, m. k
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
1 ~, t' H* r7 F2 k) R6 U- G - } else {
$ b/ S- G7 h( k7 C+ P - http.begin(url);- E% f( X( b0 V f
- }
3 V; ]) W$ H X$ A/ D - Serial.println("[HTTP] GET...");
5 k- }6 O( k. V6 v3 ]' T K+ D - int httpCode = http.GET();
2 G) z7 T8 r. C4 }, l% k7 q - if (httpCode > 0) {9 e8 i$ U" X& S1 Y) b# T
- Serial.printf("[HTTP] code: %d\n", httpCode);5 J, j: B/ @5 I& K5 R& d
- if (httpCode == HTTP_CODE_OK) {" X" j2 z ?8 [6 B5 c2 |0 y- X
- String payload = http.getString();( p$ \" e6 S3 p* T
- Serial.println(payload);
( m$ I1 e% N6 e3 B+ L! p5 U: a1 u - Serial.print("\r\n");7 A" `0 T2 \/ h
- return payload;7 h1 |7 j% t0 x5 H
- }
' o) i8 q% s4 z& d - } else {
% n4 c4 c# ^8 A, `: u - Serial.printf("[HTTP] GET... failed, error: %s\n",- K) Y' x- s( Q0 _7 y( _8 b/ |
- http.errorToString(httpCode).c_str());8 S2 o6 x8 @' e" E
- }
* W) r4 S5 o8 E0 n - http.end();' H3 _: x6 W3 r; G9 ?& w& p$ g
- return "";3 t& z5 M+ s+ L, v7 x; X" Y
- }
) H. ` _2 x+ B9 D4 h0 ^ - }
" P7 q+ @4 z ?4 J3 K$ U H1 M - void mainAction() {" J% S7 V3 H) d
- // 发送请求
+ E& G" ?; e# M# N( ?0 | - doGet("http://google.cn");7 m2 F* V" L" a3 v7 a1 z
- }
3 u5 R W( F" b. \2 g0 {, H' D, }
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