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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)
! f$ A0 f3 } t" Q' f% P- #include <ESP8266HTTPClient.h>6 u( ~* x4 [9 s; k y$ z# S
- #include <ESP8266WiFi.h>
9 {2 @& S( `- q - #include <ESP8266WiFiMulti.h>
0 W E9 | P& D8 S2 u* O8 g4 _ - #include <ESP8266WebServer.h>
7 G; f! Q; f- D" c- K - #include <arduino.h>( Z! a W0 }) _$ {- c6 @
- ESP8266WiFiMulti WiFiMulti;
0 _+ O, G9 C: U f' U' [8 h- A - ESP8266WebServer server(80);2 u) ~7 o; {' H! Y; q, i' V
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
; l" n6 B0 ~* G! B- w& W, E - ADC_MODE(ADC_VCC);
& k4 e, B$ m# Q9 t - void setup() {) ?; Z# v+ t H+ m" S2 K0 t
- Serial.begin(115200);
* Q% V9 ~9 ]6 S - Serial.print("\r\n\n");2 g. O7 p& p! k" W. k, V
- pinMode(2,OUTPUT);
2 Y) I' p8 y9 R- E8 F" O* o3 j. } - // WIFI9 [* H" Q5 Y) L& c% }% s- g
- WiFi.mode(WIFI_STA);
3 w2 L9 p/ f2 r1 G - WiFi.hostname("Sparkle");( g1 v1 [7 N! q: X* z6 n
- WiFiMulti.addAP("wifi ssid", "wifi password");- x/ z, m n2 g1 Z, L+ ~7 j5 u# P
- int tryNum = 15;! E, q) c$ W5 a2 k* V7 x% W4 Y
- Serial.print("Connect WiFi");
3 A" u# g F9 b' ?, I - while (WiFiMulti.run() != WL_CONNECTED) {$ e% G' u8 H4 p% {% s! ?9 \
- digitalWrite(2,0);
9 h- N. }. z7 D; I: F$ U - delay(200);% D- H9 H3 ~, B4 P+ K: E
- digitalWrite(2,1);. f' B7 @' I' e" U5 m8 q
- delay(300);- V x2 z- m3 X1 ^" c
- Serial.print(".");
) y- R% p! y2 q; h- f1 z - tryNum--;
2 i: X6 U3 I% P3 i6 a - if (tryNum == 0) {- D, D3 N2 R1 Z5 l& \
- // 1min
B2 l" Y0 f: F - // ESP.deepSleep(60e6);) Z& x; A) r! ?2 {% Z
- ESP.deepSleep(0);
; M z- E' h3 Z1 s- u" Z - }: `8 Z% z$ x4 u4 ]) w% N
- }
: {+ z: G' g \: z. T' e - Serial.print("\r\n");
: C7 ^$ Y9 {7 r. c - digitalWrite(2,1);3 N3 m9 h3 F# l, i; ?+ b+ a
- Serial.print("IP address : ");4 }. h* R1 H1 h1 v; x
- Serial.println(WiFi.localIP());: f8 O* S [3 D, ^1 q/ s" x
- server.on("/", HTTP_GET, [](){. A$ W I: }6 ^3 y$ g' W1 j( K
- server.sendHeader("Connection", "close");1 A$ p2 z) p2 N
- server.send(200, "text/html", serverIndex);
1 g; ?7 J5 X. e - });' O! l* q- L- ]7 K q& A: c
- server.on("/update", HTTP_POST, [](){
: _4 @: b# j% o5 ?& m - server.sendHeader("Connection", "close");
, J" ?0 d+ T7 Y. q2 M, { - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");3 ]0 w) {" ]$ {
- ESP.restart();7 h+ J& ] Y) f% t+ Q
- },[](){
) X3 ?( |0 M" E6 M' y, K) J3 ` - HTTPUpload& upload = server.upload();, j4 J7 j6 p' k- M: Y2 f1 ?
- if(upload.status == UPLOAD_FILE_START){9 G( W8 ]! P v- O% Z* B0 k0 {) k9 W. P
- Serial.setDebugOutput(true);$ E5 ^ G: S- C$ u9 v' S6 U# [
- Serial.printf("Update: %s\n", upload.filename.c_str());3 O# `$ f4 n# g: X6 l
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;) c# W0 u1 o/ M4 N8 P" _
- if(!Update.begin(maxSketchSpace)){
) B# F. t7 |* l" `6 }- w - Update.printError(Serial);( q- n6 Y! q; f5 N
- }. E! K5 y! h$ l( |6 j
- } else if(upload.status == UPLOAD_FILE_WRITE){; o! h' `5 r* x W* ^: M
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
S% O& `+ ~' d" N$ o. G - Update.printError(Serial);2 c' ?3 K2 T( t9 p$ U1 @' N
- }3 g8 w6 T+ m$ l" Q5 o
- } else if(upload.status == UPLOAD_FILE_END){
5 O8 w) J* C* g0 e4 U - if(Update.end(true)){
" ^# o; N# o, z) m ~( x - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize); n% J( C8 p/ Y; g" |5 V- h
- } else {
! N' o( L0 \: ~* g - Update.printError(Serial);0 ^# `& x3 E5 D& c/ U3 z
- }2 |) O# U& m) w+ Q: L( d
- Serial.setDebugOutput(false);3 R$ U5 v0 P4 \& ^) m: E
- }" y% t: c( }# E; I. D1 ~
- yield();
( g s' ~* {: B5 Z. W - });% C2 n) n( k4 {1 A* W* A
- % ]# ]- u" C2 t. j
- digitalWrite(2,0);
3 n/ S7 j2 B- D: `( _# I - mainAction();
: G9 ^ v: f r8 n. i2 v - if (digitalRead(0)){
/ C; L. @: E/ l% c' w - ESP.deepSleep(0);
/ T& a. O, D3 X5 ~7 A - } else {
$ ?) X. t. f; E2 s3 D - server.begin();: O+ A. U, W. @
- }# J' J, {9 C# ]6 [ G4 |. q
- }6 l- q7 p6 E% {
- void loop() {+ \( @' K; X) B7 j: W
- server.handleClient();
9 A- }( `/ D% h; e1 Z - delay(1);1 c' s* L" X U& W
- }4 a0 m, R$ L* u3 J0 d
- String doGet(String url){
1 _' G- K7 H+ w: q! H' f - if ((WiFiMulti.run() == WL_CONNECTED)) {
$ }+ e7 x5 U7 x( ^3 V a - HTTPClient http;
% ]/ Y3 x" P( N8 z( |. Z - Serial.println("[HTTP] begin...");
2 y3 l' }; T9 Q5 @+ b8 p% d4 Z - if (url.startsWith("https")) {' g! a$ r9 S; H7 k/ L
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");) k! ~, d% y3 ~
- } else {/ l7 c9 S8 N; p8 \' R/ L
- http.begin(url);
0 e9 P/ t' T# B2 V4 U- x - }3 C: I. f! A; I% |6 C5 Q
- Serial.println("[HTTP] GET...");1 @2 ^- M3 l9 l* E) C6 t& t
- int httpCode = http.GET();. \( S+ X' G- z3 Z: f! p5 m s- {
- if (httpCode > 0) {2 Y& P8 B! T7 p
- Serial.printf("[HTTP] code: %d\n", httpCode);/ C5 r6 M: s. v& X1 u v
- if (httpCode == HTTP_CODE_OK) {
% j; x( r1 m- Q8 X, c - String payload = http.getString();& m7 [( q7 s( j
- Serial.println(payload);
$ E+ {; J1 f0 ]* Z, E& ? - Serial.print("\r\n");$ \/ D, I2 u W/ [! r4 f) \0 r" J
- return payload;- t; t. q2 Q' z
- }
2 t; h- m" G; l2 J$ C* n - } else {
8 t- W! R; C2 L3 [0 T7 r - Serial.printf("[HTTP] GET... failed, error: %s\n",' t% X' @1 l+ ?& f9 y
- http.errorToString(httpCode).c_str());
4 Q' P4 p0 I$ h# y# V( U - }! H4 m3 f; x* y& ?$ T9 {2 Y
- http.end();
% \# @. G0 s9 m$ z# A - return "";1 h) H! S, \: F
- }. M. M- s" S% M! R; t
- }
; ?, o+ ?! q4 n: u2 _1 l/ }) W5 o - void mainAction() {
) Q! q6 L* P5 t3 i% m! Z - // 发送请求
" z: L) N7 s( b& x0 N% F$ T - doGet("http://google.cn");9 B; I1 ~9 Y1 ~2 B
- }% x# L4 `' _) a$ h
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