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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)7 a6 g8 W5 \1 \$ o0 G# e3 l
- #include <ESP8266HTTPClient.h>- X3 v% l' F' F( k/ c
- #include <ESP8266WiFi.h>
2 L8 ?4 \1 X, v" N. N2 L - #include <ESP8266WiFiMulti.h>% l9 p/ v. h( Z9 Z$ G
- #include <ESP8266WebServer.h>
9 |# Q) z9 c4 }+ w' S8 f - #include <arduino.h>
( t' }. Z9 p1 @2 A) I: d9 t: ^ - ESP8266WiFiMulti WiFiMulti;
/ `. u$ {. S+ a - ESP8266WebServer server(80);2 s I6 _) L2 }$ _" N* [( N8 f4 L! M
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";/ x- | B3 V3 x3 q
- ADC_MODE(ADC_VCC);8 b- h1 ?" O( v4 `
- void setup() {
: H1 q( Q. z1 B. P: Y' N0 V - Serial.begin(115200);$ x# m" @$ I" f/ \6 O1 p7 @
- Serial.print("\r\n\n");8 `1 p2 y- N# W' N# n/ W3 o
- pinMode(2,OUTPUT);$ ` _( w; r" x3 f' @. P- P
- // WIFI8 u8 d2 x% V8 s- t) X. P
- WiFi.mode(WIFI_STA);# K4 ]3 O0 l5 q: @: O
- WiFi.hostname("Sparkle");
* a/ N% b( Z9 ^9 _- T# V - WiFiMulti.addAP("wifi ssid", "wifi password");
5 g4 d4 O0 g0 w4 `% `1 y - int tryNum = 15;' o' N9 f6 S2 h( u0 l( p( d+ p
- Serial.print("Connect WiFi");
+ H" N. G1 b% a - while (WiFiMulti.run() != WL_CONNECTED) {# D n. u) }# z( [4 q( d: E
- digitalWrite(2,0);: d9 \; u d" b+ N2 a( q
- delay(200);
7 T- E4 f( _0 M" _2 B1 L* A - digitalWrite(2,1);+ `: X \* s# x- K% Q. P
- delay(300);6 O! b; |; q. q$ b
- Serial.print(".");% b( X: L. Q0 L! P W2 v
- tryNum--;9 t# u; M8 u( |8 N, [/ T0 D+ Y
- if (tryNum == 0) {6 G. x$ ` S k: x$ Y
- // 1min) ~) j; C+ F/ ~1 s0 ^: c
- // ESP.deepSleep(60e6);
9 Q' S/ l }3 `. d4 [( M* _4 I - ESP.deepSleep(0); `3 a, B9 X& n
- }' i* B6 R1 a) \% I$ a
- }
# {& j- X$ C2 } - Serial.print("\r\n");
1 J+ h0 |0 _: y; R: { - digitalWrite(2,1);2 Q9 _! J1 t) L0 ]" [7 I! s2 [
- Serial.print("IP address : ");3 I7 X$ _. `! [7 i( b" Z8 U) _
- Serial.println(WiFi.localIP());7 v0 p! D% ^& z5 _ Z
- server.on("/", HTTP_GET, [](){" \! T: h/ S+ H, F* I
- server.sendHeader("Connection", "close");0 k `% D J- J: X$ d/ A
- server.send(200, "text/html", serverIndex);
+ [0 _9 n; Q8 B1 {, z# } - });
" H& U; o9 X: Z1 P - server.on("/update", HTTP_POST, [](){
& E& C! j: k) c - server.sendHeader("Connection", "close");
6 i# |' T {# x) z W3 `4 o - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
0 S9 O3 l# S8 U9 T- O: P - ESP.restart();4 C" W& T# N% x" n" v. C
- },[](){
% y) E+ y% g5 u' U+ L1 h. P; ? - HTTPUpload& upload = server.upload();
0 g, i" T f3 j - if(upload.status == UPLOAD_FILE_START){
% b0 B, O& l* d0 }. D/ @ - Serial.setDebugOutput(true);2 B& z8 [- P4 o. g5 C
- Serial.printf("Update: %s\n", upload.filename.c_str());
" X% E/ B6 Q L6 y U - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
- V4 ]! l& z [: N4 d - if(!Update.begin(maxSketchSpace)){4 F5 k8 M. b, `
- Update.printError(Serial);
* [! C& k. q9 T" K - }
0 v6 t' H$ c @/ H4 L* y. c$ W - } else if(upload.status == UPLOAD_FILE_WRITE){0 Z9 L) p' _# N) R! L
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
7 T j' O# j# e U( A2 S" C6 { - Update.printError(Serial);8 `3 G- H: y7 c* G
- }- q4 L+ a. P& G. F5 t9 ]
- } else if(upload.status == UPLOAD_FILE_END){
i) G* _6 m0 _/ i - if(Update.end(true)){( {; V0 s* Y Z( X
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
9 ]1 p5 W9 z8 i" E+ T - } else {7 m0 Q+ h) ~6 s& M; _6 e% a
- Update.printError(Serial);
G7 N( }5 b2 t# i* S# f0 q4 c6 } - }/ l, q5 ], b( f. o( z8 k
- Serial.setDebugOutput(false);1 S/ _- i. y# Q. y
- }* z9 e' M0 j- X% a
- yield();
6 Y6 E0 }, {, D7 J; F - });& X o* E1 m+ F" K* _
- ( Z; N$ \6 b/ d/ H/ Q$ [
- digitalWrite(2,0);
# {& j2 X" ~# t. Q - mainAction();
" s1 ^ a/ R) U% G - if (digitalRead(0)){9 P5 B0 R/ q% ]5 Q9 y: H# j
- ESP.deepSleep(0);
/ a/ S: S2 T" J' v' s/ W. m - } else {" Z1 \/ E2 O5 Z, r2 s7 s0 k$ V Q
- server.begin();( ]/ ~1 L/ g; _* n4 T
- }' x* t. S) z3 V/ h! H
- }
, v' K& h% M+ o( G - void loop() {, `8 @" P( b+ i. B) D9 }) v
- server.handleClient();
7 D' ~4 Y. P) R - delay(1);
- x; j0 l2 q# O* k4 @# ~ - }
3 n4 s9 p0 D- }$ m2 C - String doGet(String url){7 ~2 P/ h* k; Z" t: v) }
- if ((WiFiMulti.run() == WL_CONNECTED)) {
, b8 B( r! R7 y9 N, {1 _1 C2 W - HTTPClient http;
& x+ r {( a% S" B - Serial.println("[HTTP] begin...");
& {) I, G( l! n6 H' z/ l9 o* g - if (url.startsWith("https")) {
) B+ N, Z& I }) K0 ^, D2 O& i" D8 Y3 } - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
0 C: B( c, a8 T0 T - } else {8 @$ D4 z: P' z1 Z. }5 U
- http.begin(url);$ f/ a( _! T6 Q
- }6 Q ~# p" ]* a; [! q
- Serial.println("[HTTP] GET...");
9 I0 M' X7 ?* K: F$ S1 ] - int httpCode = http.GET();
( ]0 \( Z6 r( c( Z - if (httpCode > 0) {0 r' |6 x q j+ f
- Serial.printf("[HTTP] code: %d\n", httpCode);5 H4 M% b/ f O4 U/ D
- if (httpCode == HTTP_CODE_OK) {; g: U. W0 f- ?# {0 Q
- String payload = http.getString();
) h) J' S% ?' Z- K6 t$ ]9 c5 e8 M - Serial.println(payload);
t* W( \+ ] }+ h5 Z# F& h" {" V7 @" R - Serial.print("\r\n");
* v) K$ B) N& s6 b - return payload;
4 l1 |( P0 ~; w" s - }- Z/ e/ W: C, P$ w: |# F7 G
- } else {2 [8 c1 H h5 j
- Serial.printf("[HTTP] GET... failed, error: %s\n",
6 c9 n6 Q7 N* x - http.errorToString(httpCode).c_str());
9 X+ O4 W( v' [ - }
: t' O9 U$ t. t2 [, ?3 Z - http.end();5 |1 ?* {7 w9 F7 C$ S: T
- return "";/ V" F, B+ B2 k1 p5 n
- }5 M9 J) I9 z0 P5 y! J& F/ U- M
- }" z* ~* `8 y8 U- T7 u( f" v
- void mainAction() {
: l' R2 J6 O9 C, g - // 发送请求
7 J; ]7 p y5 @3 i- f( q0 \ - doGet("http://google.cn");( L0 K# v! R9 }3 q
- }
3 _# J9 F: M Q- B% Z( i9 g: u
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