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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 o7 d9 D- `8 [% f' ]- #include <ESP8266HTTPClient.h>( C8 A3 G$ o0 Q$ m) W6 U
- #include <ESP8266WiFi.h>
: L0 W" c! ^5 t" |. H3 t+ a; @9 A - #include <ESP8266WiFiMulti.h>
2 p( f2 H6 p" p# d1 i. k - #include <ESP8266WebServer.h>
; q3 g; m, i' o6 E+ {: J - #include <arduino.h>0 c! ]+ q) z) |& C1 |
- ESP8266WiFiMulti WiFiMulti;
# ]1 F' v: K" n- C - ESP8266WebServer server(80);
7 J5 c2 k1 k- Z6 M! b" P! L - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";7 }. I9 E8 l7 t7 l
- ADC_MODE(ADC_VCC);; y" X' x$ i& a4 k! q
- void setup() {2 D! o) D4 N9 M# Q! n* N! H
- Serial.begin(115200);
Y A" t$ [! k S4 { - Serial.print("\r\n\n");
3 g9 o6 _" F# m' ? - pinMode(2,OUTPUT);7 D. ]$ I% f( z9 Z5 J, @
- // WIFI8 j# b& Y/ O9 n: D/ y
- WiFi.mode(WIFI_STA);8 K" W: E/ J4 `+ S# ]0 j# D# f3 J
- WiFi.hostname("Sparkle");4 D7 E7 E4 B5 g5 i
- WiFiMulti.addAP("wifi ssid", "wifi password");; f: S1 Y& M* L7 k4 g% p
- int tryNum = 15;
: L7 j+ e3 P) I! k - Serial.print("Connect WiFi");
8 u: N8 L: r2 `0 \* I - while (WiFiMulti.run() != WL_CONNECTED) {
5 _0 L1 _* ^# G3 N6 D - digitalWrite(2,0);
! j. Z7 E! _( y. ^5 `4 z; v - delay(200);
8 C) S; W3 @$ ?9 q% v9 b8 m& J; I3 t - digitalWrite(2,1);
3 Y- ?( S9 ~) r1 g5 i9 [' O* H - delay(300);
$ \3 n. P2 @) l6 R3 N! Y5 b+ v - Serial.print(".");3 x0 e) i4 n! a( o
- tryNum--;1 \: G" \0 |, P* `
- if (tryNum == 0) {
6 f) C0 T U$ y - // 1min
9 d _( g2 k- s - // ESP.deepSleep(60e6);
2 c& w0 k- B; t - ESP.deepSleep(0);1 @8 f% g0 _' `) a/ q: |! Y! {
- }) n: U; U% ?* D/ N% A& O* l
- }
8 n ~/ w2 S* d4 _+ s - Serial.print("\r\n");
: Z4 p8 S# u) K, D1 H - digitalWrite(2,1);3 d% Q A9 w1 [
- Serial.print("IP address : ");# S! B( i" A. |) n/ H5 x
- Serial.println(WiFi.localIP());! U, d( k2 ?& T/ u
- server.on("/", HTTP_GET, [](){ \2 U' Y7 B, ]6 I) \
- server.sendHeader("Connection", "close");8 f& O% U) a$ n! D) w/ j F
- server.send(200, "text/html", serverIndex);& Y( J5 ^9 \0 U# A! F" u" A
- });
! N' J6 r7 W, [1 z7 [2 x3 d( p# I - server.on("/update", HTTP_POST, [](){& Y3 Q2 b* w7 u7 |. z5 Q) z
- server.sendHeader("Connection", "close");4 u$ m% y G/ m% Y3 u
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
% Y3 m& X/ N; O. Q5 @- Q6 ?3 ` - ESP.restart();
" w5 \, d* s( b8 s$ X - },[](){
' ^9 U8 @3 f9 ]7 H! g - HTTPUpload& upload = server.upload();
0 P2 s6 [" P4 o7 S - if(upload.status == UPLOAD_FILE_START){6 k$ f. }. ?- }; g( d* D+ x
- Serial.setDebugOutput(true);7 C! ^: R4 p- a, P) }7 {% M
- Serial.printf("Update: %s\n", upload.filename.c_str());
6 o9 Z9 ~$ u5 q5 a; B - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;% u0 m3 J$ q& q+ ^
- if(!Update.begin(maxSketchSpace)){8 K0 T" b$ A' x' U
- Update.printError(Serial);
6 r- P7 K' q8 B" m - }; y, E' `. F0 H: C
- } else if(upload.status == UPLOAD_FILE_WRITE){
/ A# a1 s2 I1 g8 [& h0 a. D$ | - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
1 y: [# [; p3 t) u# }2 P$ w - Update.printError(Serial);
' I8 o" q$ D$ A; r ? - }* L" b; T: Z2 L6 b
- } else if(upload.status == UPLOAD_FILE_END){7 ~7 }( |. W+ _" [
- if(Update.end(true)){% B) z- G# W$ ^5 E: ? n r
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
0 o! X2 f- M5 H; E* ]# q1 h% l - } else {& }' |+ @# o* U5 ]; V% t
- Update.printError(Serial);) c5 }9 V& ]) W5 y& M) h
- }: l) t! i2 Y C9 a% G# \4 m* c
- Serial.setDebugOutput(false);
8 d* K% S+ \$ O4 _8 A9 i/ { - }8 X2 O$ {+ `/ e" Z: P( w
- yield();7 H# Y/ x# d2 U$ g
- });0 c* n3 C- O: P8 b# m1 s2 K* ? e3 w3 T
- n3 R1 n- p% x* A& n8 d& z, ^
- digitalWrite(2,0);
$ f# w6 F, S7 y- l& `9 f: N7 c - mainAction();4 F' w' `$ A. `; h: Z: q# c
- if (digitalRead(0)){9 I- V" J, d8 ^+ H
- ESP.deepSleep(0);
, s$ ?1 z4 f( S4 i C+ y+ Z - } else {/ W B/ B! U7 I- L8 G
- server.begin();
0 @3 |; _1 h: `$ Q - }
& {5 @ y* e4 h2 ` - }
$ B0 i5 p6 O5 ^/ Q7 c - void loop() {; p5 E/ j% {2 s9 T+ z
- server.handleClient();( Y' x+ w* Y9 R7 v( N6 D
- delay(1);
0 ^# l. f+ r, P- X4 q& m! q! O9 }3 \ - }
( e; N8 q# [& {/ Q" i - String doGet(String url){
. r% |; K5 R+ y6 n, L' A - if ((WiFiMulti.run() == WL_CONNECTED)) {" |# {5 w+ _" _8 q4 ?* m9 i* h
- HTTPClient http;- T. X4 k' z# r) A8 ^" ?: m
- Serial.println("[HTTP] begin...");
q: l$ ^# F7 ^4 _: O - if (url.startsWith("https")) {
! K2 M1 {$ T& F3 G a - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");/ [& x; J& X# q. T
- } else {
* X) U/ p- {( m3 |( i5 Y - http.begin(url);
3 u' X0 k" x( d6 I; e - } I4 O. ?/ t# E+ O! W) Y8 z
- Serial.println("[HTTP] GET...");; e0 s$ o2 E& j! D
- int httpCode = http.GET();
' r* P( r: T: [% R" s) ]/ G1 p - if (httpCode > 0) {$ l5 a: C- r) m2 s% ^7 E
- Serial.printf("[HTTP] code: %d\n", httpCode);' X: c/ Q* C7 C+ e" E" I5 D% v
- if (httpCode == HTTP_CODE_OK) {8 H5 Q- X$ {+ {: [ z
- String payload = http.getString();
$ a/ O# r- r2 u6 x - Serial.println(payload);) x0 J" f& r( o1 {# s
- Serial.print("\r\n");3 K" F: R, _+ a& x
- return payload;
2 b8 R( Y) b- K! D. j - }
9 U0 j$ I. b0 T - } else {
0 F5 x( J# `* j8 ] - Serial.printf("[HTTP] GET... failed, error: %s\n",
1 t# ^- d% P7 F* n' T! I# j. b - http.errorToString(httpCode).c_str());* v, ?/ [. s: L
- }/ A5 m) q4 [7 ?7 L Z
- http.end();
( W1 L. N% A7 {, s$ w3 h- f - return "";+ F8 `; E+ x: T6 v
- }+ f/ n: [! r" y9 I2 o5 q8 b
- }
3 n3 s" ^0 T+ ^; |8 g/ g - void mainAction() {1 L$ W# u2 B" |( W" j
- // 发送请求! n4 z1 S* j3 R/ v! C" V1 _2 R
- doGet("http://google.cn"); p, U i3 S( t% w) H
- }; R- L8 ~$ N5 k$ q8 c+ K9 @8 N
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