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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 W6 E( f+ b L: f* ?
- #include <ESP8266HTTPClient.h>0 l% ?6 w/ d2 N/ |7 L
- #include <ESP8266WiFi.h>" g5 t. W% r( Y3 w( u( p
- #include <ESP8266WiFiMulti.h>) e$ I, \# C' o% u; |2 m* [3 O+ b& K
- #include <ESP8266WebServer.h>
4 H+ ?! Q" l U4 ?1 N* F) S2 t4 j - #include <arduino.h>: H. m0 j! Y" Y6 d: s" L( T% J0 [
- ESP8266WiFiMulti WiFiMulti;/ w/ I3 c7 L: Y9 D7 J# b
- ESP8266WebServer server(80);
, J8 I! Q, G2 ~- ]7 J- W, V - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";( k0 [" j& B5 l
- ADC_MODE(ADC_VCC);! Z& ?' |5 f7 Q2 p4 j
- void setup() {4 W, H3 ?! K# {. H
- Serial.begin(115200);: S4 b8 P. N% s( P! x+ U$ r
- Serial.print("\r\n\n");
# l: b1 h& d* w7 ]+ Y8 o5 F, [ - pinMode(2,OUTPUT);* W. g7 G6 x0 F! O! y
- // WIFI0 q6 u8 M8 \& m: D# x
- WiFi.mode(WIFI_STA);1 l/ q# a' |) A) T$ A& z, _" H
- WiFi.hostname("Sparkle");% i' w, I1 d+ D' C N
- WiFiMulti.addAP("wifi ssid", "wifi password");+ t. F( \7 ]5 R
- int tryNum = 15;
b5 Q/ [ K% l- O - Serial.print("Connect WiFi");, r1 i6 r+ X6 D: n% D
- while (WiFiMulti.run() != WL_CONNECTED) {' t/ E+ ?0 V4 |: K$ o/ a& h) F: E
- digitalWrite(2,0);# G! h q5 @' o
- delay(200);# b0 V0 D/ j, o j! j5 B
- digitalWrite(2,1);
6 [' F& I, U: y w3 N - delay(300);
- ]- {7 ^. x0 _) J - Serial.print(".");/ V3 v' U- S3 L1 n! x( ^8 p# y" t4 Y
- tryNum--;* W: q4 B4 ~9 E. m8 i! E t4 w7 m' h7 n
- if (tryNum == 0) {: D$ w. e) M7 J4 o2 U: q3 g. y# A
- // 1min
" c6 v7 k7 B/ e" o& a. z - // ESP.deepSleep(60e6);
; N3 |/ p- M: Z ~$ F ~ - ESP.deepSleep(0);
+ Z$ w+ I* ?# t% w: I: V - } I5 u f/ y# O d9 Y
- }$ R; z* f* T- u( G' v" P. J
- Serial.print("\r\n");8 ]; i( \: G G7 f% [3 M
- digitalWrite(2,1);
; @0 f4 K U3 r4 o - Serial.print("IP address : ");
, R( s3 B; U( e K o - Serial.println(WiFi.localIP());
3 e; V' A4 ?+ X) Z9 G - server.on("/", HTTP_GET, [](){. }! X! o- J! I" z* ]0 m1 _2 g
- server.sendHeader("Connection", "close");
% y# c4 {/ `- b# \, @- \0 Q. Y - server.send(200, "text/html", serverIndex);
' p: K' t _2 h; V; A$ P j - });2 N' T5 z/ l' h& M
- server.on("/update", HTTP_POST, [](){5 X# H% u3 j" M b B2 D. k
- server.sendHeader("Connection", "close");- x2 Z$ d8 t) O& ? N8 g# H7 ?
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");( _# @& l1 X) }5 T* K3 F
- ESP.restart();
/ D( r+ m. e- M* e. \* p* f t - },[](){
1 }" j! `7 s" q - HTTPUpload& upload = server.upload();2 u- M$ |3 E+ D
- if(upload.status == UPLOAD_FILE_START){
0 ^) v) [- v* M; b& Y, m - Serial.setDebugOutput(true);! K0 ?% x4 } a6 ?* @3 N
- Serial.printf("Update: %s\n", upload.filename.c_str());( P" e' v1 o" Y! C
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;' f/ D$ w) Y6 R% D" F8 {$ K# I
- if(!Update.begin(maxSketchSpace)){
' g3 m7 _# m! m' T4 a - Update.printError(Serial);/ w/ i" w( Z' r8 l# m m; K
- }7 c- J! c: y/ v9 t. N% {8 W/ z
- } else if(upload.status == UPLOAD_FILE_WRITE){
: ^8 ^& r) p) ]- k' v7 i/ d - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){) P8 T. m5 O( R
- Update.printError(Serial);
4 z' A9 X6 f/ Y8 ]+ D9 ^ - }" C, h' V7 w1 S% z/ D: e$ N
- } else if(upload.status == UPLOAD_FILE_END){1 m1 i4 D) S! A: o; ~ N2 N! b
- if(Update.end(true)){
: K: v9 K9 q T. L: R1 u. m - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);1 |1 J0 p: Y* ~4 x8 \
- } else {4 L* E1 ]1 P: `9 ~6 e$ Q2 c# |
- Update.printError(Serial);0 H$ i8 {+ x) G6 n3 Z1 ?& M5 ^0 a
- }
2 b( Z$ H* N. z0 q# {: r - Serial.setDebugOutput(false);9 Q- s% V+ i6 i/ _5 l
- }' ^* j( x* ]) x- i0 @& J
- yield();+ w$ ]& g J7 k! _& `: E8 @
- });( _8 r: C& i5 f- n. B- p
-
. l9 h" n5 v$ P: K9 h9 S! i! x - digitalWrite(2,0);/ b1 e( w7 s' @9 @* @5 ]' c
- mainAction();
+ l1 f0 M* I1 S$ m6 x2 k9 J - if (digitalRead(0)){) h6 A5 S; o2 I; H
- ESP.deepSleep(0);6 ~. n/ v, N9 N4 W0 X; R
- } else {6 S2 N/ \" h3 q, _$ W5 w5 g
- server.begin();
0 s3 m% r, c- X# t- t4 ~ - }- H; q& r v' E( D4 H3 n" \
- }
- i; f4 x; g$ b; N; u0 D - void loop() {
6 g) F' X: t9 j0 x - server.handleClient();* S% }4 A8 j/ H8 D9 X( z
- delay(1);
+ c9 {" s$ z* }/ ^ - }
, @: f* _( z6 k: K0 n - String doGet(String url){
6 ^9 o0 W) U2 O3 o# f- [+ h. B) d - if ((WiFiMulti.run() == WL_CONNECTED)) {3 P% g3 i9 c4 L" v
- HTTPClient http;
" m, V% F t) M1 @: J9 @& d - Serial.println("[HTTP] begin...");
' \" n6 @* A7 `9 r2 W0 |4 H7 r7 R - if (url.startsWith("https")) {
" z$ r9 m* Q' Q# Z/ ?5 q - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
+ f7 ]- N$ ^, M3 j- W, ]$ R - } else {/ H' a' T0 d/ ^: H5 m% v
- http.begin(url);
6 F8 z# N" }7 q7 N2 O - }/ [8 P( y" S. |: Q
- Serial.println("[HTTP] GET...");2 O! t( g2 ~% Y- V$ f
- int httpCode = http.GET();- h0 B0 D+ r+ v; w
- if (httpCode > 0) {
1 _7 i; r) d. Y" q+ L7 y2 g - Serial.printf("[HTTP] code: %d\n", httpCode);. m- {/ y6 p( C# M8 o4 T- K
- if (httpCode == HTTP_CODE_OK) {
Y Y$ f) K) ] - String payload = http.getString();& m- q* Q4 K- h5 A2 h" i$ n G
- Serial.println(payload);3 @! [% L2 \/ ?/ a0 O
- Serial.print("\r\n");
7 D* ?, P+ O- E! g* v- G - return payload;
% H4 f% A7 G7 C" j& F% \ ~ - }
9 @8 j2 ]8 B3 m3 r5 C6 I& E- {, B. Q5 P - } else {
9 t; i4 k% ]8 ^& ?/ B - Serial.printf("[HTTP] GET... failed, error: %s\n",9 r: b& \% \* \1 m( z" c7 g
- http.errorToString(httpCode).c_str());
' j$ S# I2 A# K6 [3 ]. G* f# r! ]# j9 r - }$ v: l7 ]1 G! O! I* [0 [, P
- http.end();
& U( w- e6 F" R' ?1 k2 x9 f: L+ W - return "";7 n9 h: [6 v; C) l0 C0 y# v1 W
- }0 b8 r2 _) m- V h+ s; u
- }
! s8 N5 r d, A! p' {0 F - void mainAction() {
; X5 O/ r6 H2 A" ^* i: t - // 发送请求
' b8 z% N% \2 |4 | - doGet("http://google.cn");
) h; R: r; O1 ]) m+ I - }
5 m9 e. U5 a9 q4 p& n& i |
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