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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)
8 c; B/ L: o1 E* _- ?9 f. j- #include <ESP8266HTTPClient.h>
( C. h) `. n8 u4 Y - #include <ESP8266WiFi.h>9 [% J% g" r2 \+ t1 b3 R- x" D) d
- #include <ESP8266WiFiMulti.h> J! n6 z0 X/ a" h
- #include <ESP8266WebServer.h>6 }( r8 E5 v" N6 @& o3 o
- #include <arduino.h>
) h% T* D( J# j6 w2 C7 z& ? - ESP8266WiFiMulti WiFiMulti;
5 A; p3 u2 m- F0 O7 G- `, p% \ - ESP8266WebServer server(80);' f, f( |/ b4 D2 S, Z
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";9 L# B6 h( g1 O4 A, X4 j
- ADC_MODE(ADC_VCC);! u& V. Y6 p- x8 n! `
- void setup() {
* |( \& d( N' }: N" {. k; H. J - Serial.begin(115200);
* g; ~' M) A0 O# J - Serial.print("\r\n\n");
# \ `7 V2 b9 t5 r) Y8 U - pinMode(2,OUTPUT);
7 ~$ b5 g* E9 G# y - // WIFI, }+ }4 X$ @* A1 R8 N: L; ~
- WiFi.mode(WIFI_STA);
a7 ^) i/ R' J4 Y6 U$ q - WiFi.hostname("Sparkle");
% v0 R" K' {' ^. H# u% W0 `' |- x - WiFiMulti.addAP("wifi ssid", "wifi password");4 f. }2 m; {# d! k
- int tryNum = 15;
( ?) B$ q4 m8 }% z: s7 V - Serial.print("Connect WiFi");+ j( K# J1 N( o1 |3 l' Y
- while (WiFiMulti.run() != WL_CONNECTED) {
8 ~/ }1 Q6 T" n9 m - digitalWrite(2,0);& b- }' V, u6 {- {0 v5 a
- delay(200);
9 ?6 V( K$ L$ ^ - digitalWrite(2,1);
6 q7 b2 L7 V3 Z" j& q9 V' C - delay(300);3 _& T9 [5 u9 N X- c3 n
- Serial.print(".");. R; v! w1 g4 A/ u
- tryNum--;% D9 X2 R7 H) f" F5 J& n+ e
- if (tryNum == 0) {: [! t! K S1 p3 F: Y3 B
- // 1min5 w7 s) e) u+ F8 h# W) c* v
- // ESP.deepSleep(60e6);
: g5 J6 M, Y, h6 g - ESP.deepSleep(0);
3 K1 v0 o2 [" ] P( J6 r) u - }1 b) t6 l0 ?0 _% X0 |
- }
' g# h/ u k: b - Serial.print("\r\n");& j; Z) ?* w6 g, s( k$ H. U( N
- digitalWrite(2,1);
6 u$ M5 z ~0 H+ N - Serial.print("IP address : ");6 N8 ^6 Q9 H1 B
- Serial.println(WiFi.localIP());7 A! e; r; J4 ^# e: z. m8 ]4 I" s
- server.on("/", HTTP_GET, [](){
) `2 y4 n; i3 t - server.sendHeader("Connection", "close");& n3 A. n1 \7 H# Z% Y
- server.send(200, "text/html", serverIndex); L3 r8 |5 l4 P7 G; }
- });& J1 ^- j! U: Q' O; S( ^
- server.on("/update", HTTP_POST, [](){& N8 b$ v) `5 u2 F$ l& d, W t, F% A/ H
- server.sendHeader("Connection", "close");
; J: s7 z( j& a& y+ {! i - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");1 `8 h/ b5 K4 X3 F. q6 V3 y% L' P
- ESP.restart(); a& \& [( H5 P- r4 f4 V* {# r
- },[](){
4 J. T' F4 d4 D. w( D7 i# J - HTTPUpload& upload = server.upload();8 [0 G2 v+ O7 r+ m* }
- if(upload.status == UPLOAD_FILE_START){
4 O/ r7 ]: N+ g# I - Serial.setDebugOutput(true);
% Q8 S1 a0 I2 \" s* c. x* ] - Serial.printf("Update: %s\n", upload.filename.c_str());7 {7 t! ?2 v3 H+ I Y5 u
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
- t2 P U" W0 W- v8 F9 }' I - if(!Update.begin(maxSketchSpace)){
A0 A# G1 j. x8 d( [ - Update.printError(Serial);6 E! [2 N! K. R' S( o
- }3 @. E& t% U7 D$ p# q
- } else if(upload.status == UPLOAD_FILE_WRITE){
7 P r( r" {2 S7 Z% T7 W' r - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){* U, x) s9 {& P1 M; x, u, h
- Update.printError(Serial);
+ V* P U2 S, p% g- Z9 g) D: M - }
& A8 {; `; }' R+ Y0 i5 U% E - } else if(upload.status == UPLOAD_FILE_END){2 ]; \) v& A- o( z4 v" x
- if(Update.end(true)){9 z; \1 P* z7 K- i6 s8 z- Y
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);2 w2 {6 |) i4 ^+ Y! ~! D
- } else {
8 J+ F+ D& e3 }& \1 Q - Update.printError(Serial);3 r ~) ^. J8 E' C) L& M0 X. y' g
- }1 ^4 i0 E( q% {
- Serial.setDebugOutput(false);, F. K9 B, D6 I6 h# l
- }# b$ g) D" J" G+ U* A, |9 M6 }5 D
- yield();
& C& d+ | q; m: |# l2 D8 ~9 r - });
! U+ @$ i9 a# [2 Z( L& _. a# k - 3 f I3 A$ }& K7 V& e" E5 m
- digitalWrite(2,0);& E' }3 w# T& @' G/ |
- mainAction();
8 a' d$ N# ]% [! d$ z' z4 K3 U - if (digitalRead(0)){9 F* S( S- R; H3 n4 Y! V, w* o, Z
- ESP.deepSleep(0);
" N: `5 `. t& `2 W2 A) @( w - } else {/ {2 w4 ]: q' s: M& f7 o
- server.begin();# S5 S" g/ l3 v% _9 x2 H
- }/ q5 X& X3 X- K5 X+ r
- }
7 I$ a+ I7 T+ i+ C - void loop() {
2 O& n% a8 |# y6 X. {! g( c/ h9 v - server.handleClient();: _1 m- y8 t3 a. e) v
- delay(1);
% q$ z" T, c: ?7 P$ v: ^ - }
' W# T5 l8 G; G* S7 K - String doGet(String url){7 ~, o" T4 u9 V0 l- ]. q4 I0 B" o+ P
- if ((WiFiMulti.run() == WL_CONNECTED)) {% o( i2 X* e" @* n& h, c b
- HTTPClient http;$ U5 r7 Y( s6 p; H& H( I
- Serial.println("[HTTP] begin...");! s: W& D9 H; ^2 m
- if (url.startsWith("https")) {
0 Q9 @% v1 e: b% T% b. M5 [ - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
# o4 p; C/ _2 [! K - } else {
6 z! T! W e, L4 `: n( [ A - http.begin(url);2 b1 z6 h# H9 L6 v
- }
6 r* j, T' q. [7 w3 C/ v7 O - Serial.println("[HTTP] GET...");* [( _4 U" m( E- b' F0 P8 I
- int httpCode = http.GET();
1 d1 V9 z. }( A - if (httpCode > 0) {
; u) `3 S* S- O: D- t) F7 `+ w& ] - Serial.printf("[HTTP] code: %d\n", httpCode);
- z% ^8 ?+ s! D - if (httpCode == HTTP_CODE_OK) {, W' W9 s% h8 I6 F% V' ?7 g0 q& E
- String payload = http.getString();3 p& K. ~- K/ L4 j9 s3 l2 a: n$ L
- Serial.println(payload);% O: Q: a! X0 Y
- Serial.print("\r\n"); q5 L- g2 a! X. f- F7 W. ]4 X
- return payload;" |! p) U- {% z. z+ _
- }
8 f8 Y2 d3 @, k - } else {. U4 b6 R' J' v; i. L# o% q
- Serial.printf("[HTTP] GET... failed, error: %s\n",
6 _; n" U( O1 o& ^4 X - http.errorToString(httpCode).c_str());
, Q2 I7 ~8 {4 |! s - }
3 x4 U0 M$ { n8 ] d - http.end();
/ f( h, ` x" s2 w6 C - return "";
- q0 Y6 W( g( ~8 Z$ f - }
8 T K" X8 w- @9 C9 e - }
& @* i" V: [ X4 J! T1 m% t - void mainAction() {
' T: C4 F: m1 t3 k- Y6 M - // 发送请求; A y$ O' i( U* @: q( u- p
- doGet("http://google.cn");
0 n/ l8 l0 ~! r; u# L( n$ |% ^) H - }: g8 F8 ~2 F' H
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