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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)
0 N5 r' R0 D: k( C" ?! X& Q- #include <ESP8266HTTPClient.h>
$ M- v/ H; k& U- _6 u - #include <ESP8266WiFi.h>( P5 @/ U) a- F9 H0 @1 A6 W. R0 @, ~
- #include <ESP8266WiFiMulti.h>
K- b0 J% E1 ^0 u - #include <ESP8266WebServer.h>4 Q. w9 a! Z m. u
- #include <arduino.h>
& E; \* O; b; f - ESP8266WiFiMulti WiFiMulti;4 c( x& w# Y9 [, T8 W4 ~; |
- ESP8266WebServer server(80);6 P! R. I" g2 _, Y9 M. O' k# C
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
. s4 g) d# H( D j: D) _ - ADC_MODE(ADC_VCC); l' @4 N6 k2 j9 ?! X
- void setup() {' t4 [. S, ]* d/ B* _( d& |# m7 o
- Serial.begin(115200); t X8 u4 f& h5 G! Y
- Serial.print("\r\n\n");
: K/ u4 @$ H& t - pinMode(2,OUTPUT);1 X: w) G+ T; L, A) ^! d5 e
- // WIFI# @# l& e2 H. R$ i R) x3 |, I
- WiFi.mode(WIFI_STA);( Q k/ N G6 B9 L
- WiFi.hostname("Sparkle");
6 @( c j$ p I; Y$ C - WiFiMulti.addAP("wifi ssid", "wifi password");
4 p; k2 ~4 z8 M, t8 F - int tryNum = 15;' P7 H$ @: Q/ T# ^8 H, F {0 p1 w
- Serial.print("Connect WiFi");- ^9 H! L0 X7 F
- while (WiFiMulti.run() != WL_CONNECTED) {
/ M1 I5 x3 K7 b5 ` - digitalWrite(2,0);! s( g' h1 ?* }9 A
- delay(200);
" M- E6 Q5 T# N$ |: Q1 L; _& ] - digitalWrite(2,1);
3 U3 j2 ~# p1 c; ^6 m' V - delay(300);
: Z! d, e7 t9 X; P - Serial.print(".");' b2 ~6 z F' M) P+ a- p
- tryNum--;
* \7 ^) |/ W' w& c6 g - if (tryNum == 0) {8 P, }# F& r: i6 {' A
- // 1min) C B2 ]* d; d4 m7 f
- // ESP.deepSleep(60e6);
" x$ \7 u, ] S2 ?. q' }: W" t3 E: ^ - ESP.deepSleep(0);) I0 _' }* }2 J- O3 d& \- u
- }
$ U7 X, ?+ l/ b2 u( w- o/ f3 F - }
& p* l- l ]) k0 Y1 _ - Serial.print("\r\n");
& w) h# k; U* Q( A: z) r - digitalWrite(2,1);
. I% r* ?0 ?- _7 R& r - Serial.print("IP address : ");) a! D, J( C" ^% W! f( T N
- Serial.println(WiFi.localIP());: g. o0 d" k( T
- server.on("/", HTTP_GET, [](){
$ m/ B/ p6 s1 @7 V! T# l/ s1 A - server.sendHeader("Connection", "close");. n' o8 c+ q- M# z0 J( _. Q
- server.send(200, "text/html", serverIndex);
: e/ a2 S% C: J$ a: ]. R. J* I - });
$ c- m& x/ B1 ? - server.on("/update", HTTP_POST, [](){
0 J5 {8 z2 _ [5 I/ X& p+ |& s6 n7 h: g! w - server.sendHeader("Connection", "close");7 K- F; J0 v: f% T
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");9 z9 g' f `; Z( `7 w
- ESP.restart();
- A7 K f) m$ | - },[](){
0 H5 L/ E' g0 i+ p! T - HTTPUpload& upload = server.upload();
; r, C1 Z: G) O4 r - if(upload.status == UPLOAD_FILE_START){
8 A! I. H5 ?! @0 t2 x9 v: r7 Z - Serial.setDebugOutput(true);
& U9 O* S2 g" p# d - Serial.printf("Update: %s\n", upload.filename.c_str());% M% a5 U! ^8 x3 S0 ~- K9 x
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;( I) i7 F) ]4 \, G0 ]" |
- if(!Update.begin(maxSketchSpace)){+ I% Z; I* p* c
- Update.printError(Serial);
6 {8 C$ L. |: S! e - }$ |3 r$ w6 z0 M1 E
- } else if(upload.status == UPLOAD_FILE_WRITE){5 i7 h* ^! A7 _" c: ]+ H6 [( {
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
7 b! S# `( q b; k - Update.printError(Serial);0 v) _+ u' q$ R0 H
- }: U' N4 K3 z" X- ^7 ?4 ?* p' b$ T
- } else if(upload.status == UPLOAD_FILE_END){" Q% z' b \+ n3 n! ?2 I9 O7 q
- if(Update.end(true)){. R! K( q/ x$ F6 w) v8 I$ K4 ?3 u
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
: r R) b. Q" E; z6 Y - } else {1 k- P# e2 t( A
- Update.printError(Serial);7 x$ L, y( q5 o1 N
- }
7 F+ g: L5 r: Q, L - Serial.setDebugOutput(false);
6 a* p/ h. x/ _# M - }
: f: U1 V( E! b7 h9 ~( r - yield(); }# a$ H _( n! x
- });
X& m2 l# q4 z. H, _, v, A -
J& T7 U2 F5 F - digitalWrite(2,0);
6 n: B! w6 d6 s" Q# c; Z8 I - mainAction();# s* C9 l- n6 v/ I3 d
- if (digitalRead(0)){
, W$ U5 `3 e$ W- i2 w+ I2 q5 Y - ESP.deepSleep(0);
) D, u, \, K8 b' c5 r - } else {, }" m/ v6 E0 n! W6 S" c
- server.begin();* _0 D7 e! I4 T* R, E) j
- }
2 z0 n* W. ^( g! E& [ - }% W4 U, m, R: J9 [( l5 ]6 [5 o+ b
- void loop() {/ s2 W2 u7 L) K- W
- server.handleClient();4 P2 y6 F' ?% m* {; ?. D6 j
- delay(1);
% o& p$ v: C/ m/ @* Y( Y. S - }; L+ J4 a! T- d/ T% h5 Q& a
- String doGet(String url){, l9 L4 k6 U- g9 S4 m5 _+ L/ i
- if ((WiFiMulti.run() == WL_CONNECTED)) {
8 M ]7 c7 y/ ~! j! g - HTTPClient http;" h, o( o+ W8 i
- Serial.println("[HTTP] begin...");0 D' H; H( g0 H7 W. c; S. f
- if (url.startsWith("https")) {" V, s" g0 p- M2 s8 D) J, k5 w6 n
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
1 l( n) {! x+ `: F' r* W* d - } else {
! C: V6 ] I- t! [: u - http.begin(url);
7 R6 v" e, |$ @+ j# K - }) u0 U+ Z0 |3 q
- Serial.println("[HTTP] GET..."); b/ K0 K y7 A1 @' t) I' \& S; E- i
- int httpCode = http.GET();
/ S. B: m' Z& L" T+ v - if (httpCode > 0) {
" Z5 `4 |! N" {# C9 j: e - Serial.printf("[HTTP] code: %d\n", httpCode);
; Q6 Z9 G0 C& ]. U- \4 F6 m. z - if (httpCode == HTTP_CODE_OK) {5 I4 v9 Y/ @3 S& ^2 ~, @5 j+ G
- String payload = http.getString();
7 x4 ^0 s+ Y# O7 G/ u+ e8 s3 n, E - Serial.println(payload);& P$ v( g h) r5 e& q+ n2 B/ ?, H0 u
- Serial.print("\r\n");7 A7 n6 `* @: U
- return payload;7 X5 N' F# W' I5 E3 v! c
- }
8 X* h- t, w2 P5 S: C - } else {
( w4 n0 P2 b. @; P' J+ u* Z/ Z - Serial.printf("[HTTP] GET... failed, error: %s\n",
% ` ~! g2 [; `6 v9 Z# Y5 [ - http.errorToString(httpCode).c_str());0 l: t' T$ C* Y4 v* B" j" O3 f2 e
- }
" s8 y" z9 `: h: c/ B - http.end();5 U7 G6 q5 |. t, v Q* _! r
- return "";% Q. }; V6 G& _/ D, V) S
- }& Y# }! \4 C( E& v. X5 H
- }1 N8 r% ?: i: l" N3 M$ C5 j
- void mainAction() {
s* F$ Y* ?$ C1 J3 f - // 发送请求
5 S: {0 D5 t) V - doGet("http://google.cn");3 k' c, t5 Y: w p
- }, v1 R$ o0 k" l0 b1 e X; m
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