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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): `- Z/ @. @. M
- #include <ESP8266HTTPClient.h>. S6 A- B7 q1 d- Z& s5 {/ @ `. R
- #include <ESP8266WiFi.h>
; h6 R1 u; ?% r) y; g5 I& ] - #include <ESP8266WiFiMulti.h>. X# p* z0 }9 U% G/ P" a$ K
- #include <ESP8266WebServer.h> T% J E, N# K$ S4 e" S) i) l0 m7 a7 ^
- #include <arduino.h> }/ ?# A) X6 i1 H
- ESP8266WiFiMulti WiFiMulti;# T! n1 ?( F, E7 o
- ESP8266WebServer server(80);* @, J" d6 F& Y( k. q
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";# u4 ^' x5 @9 q
- ADC_MODE(ADC_VCC);% J9 w' D M! c( w: m2 _
- void setup() {
$ H3 _2 ^* Z2 @9 q - Serial.begin(115200);! c: D7 v7 A% W) H
- Serial.print("\r\n\n");$ E6 T% ^4 B s N1 _
- pinMode(2,OUTPUT);
( Y6 V$ O( j" E+ Y P c - // WIFI
+ M. |' C3 o9 e - WiFi.mode(WIFI_STA);
4 ~" q0 |) D- d: q9 g4 F) x - WiFi.hostname("Sparkle");6 h* d" I5 L5 P A
- WiFiMulti.addAP("wifi ssid", "wifi password");
, L- ?3 x; ]5 p7 V Q - int tryNum = 15;7 p% U& j$ N9 v1 F0 i
- Serial.print("Connect WiFi");
/ p* L! r7 |. a; e4 d- k) R0 U - while (WiFiMulti.run() != WL_CONNECTED) {
0 d( h! a/ O! n' P. c+ S' M8 t - digitalWrite(2,0);7 U" r7 q8 ]. [) P! S8 g
- delay(200);
; [9 \( M) ?, v. g$ {: B - digitalWrite(2,1);
9 M. {; b* @, Z0 d# b - delay(300);
9 `( g6 N1 o, N( U - Serial.print(".");
- W& `1 }& C5 M" d) F - tryNum--;# d" d+ S& B9 w2 E& h8 v$ y
- if (tryNum == 0) {! S: |# V% q" K3 e5 @
- // 1min
& Y1 s% Q' V+ B( w6 m' W& N - // ESP.deepSleep(60e6);9 k# k, X. M5 B- h: z- R" m
- ESP.deepSleep(0);
8 Z2 y2 m/ c* o H* e! ~) C - }# o( \: d0 p2 [7 H
- }8 e; H6 A- t$ L7 q# v
- Serial.print("\r\n");
( _% ~, ~3 _4 r& S, o( p - digitalWrite(2,1);
6 n4 k( T8 g8 T& j5 A7 l - Serial.print("IP address : ");
6 [6 R# U& Y# R: F, A - Serial.println(WiFi.localIP());
; U+ m1 K2 i+ b* {# K - server.on("/", HTTP_GET, [](){
' B7 e* {7 {5 i' L - server.sendHeader("Connection", "close");8 V0 e. ^# f+ K
- server.send(200, "text/html", serverIndex);
( Y3 g7 U7 b5 A g7 P7 }9 ] - });
3 n& w7 f, }# i: O6 _1 O6 k2 i - server.on("/update", HTTP_POST, [](){* S$ z$ U( d% a( V
- server.sendHeader("Connection", "close");
1 Z# S- s' p/ e1 {/ @% M) E - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");' y" p. o) ^+ H" e& q
- ESP.restart();
) H5 A7 N' q5 O4 ^+ C: P: O% S - },[](){
2 [, [4 s" S/ v% G( ^8 X/ W - HTTPUpload& upload = server.upload();# t/ g( B y5 e4 ]' G
- if(upload.status == UPLOAD_FILE_START){/ \! M/ _, D$ v
- Serial.setDebugOutput(true);4 i* D7 E5 m/ \; j
- Serial.printf("Update: %s\n", upload.filename.c_str());$ F7 r- ~' B; e
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;) u/ X Q& k: ^; x$ }) P+ Q9 K; J
- if(!Update.begin(maxSketchSpace)){; y9 s- \! }2 M, b( R+ _5 S, W
- Update.printError(Serial);& e% S% T5 E& O$ }8 @ J7 ?4 c
- }
# D9 ~- ~$ s" ]' _! H - } else if(upload.status == UPLOAD_FILE_WRITE){
9 l, \* N" |( S( q: h* j7 Y+ J - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
& ?5 I% \$ |2 {8 \. e1 _) n: K& z1 g - Update.printError(Serial);; C/ x- b$ ]0 h9 ~, R
- }
3 Z6 n5 k* ^" V# M+ B/ N$ }' c( c0 Y - } else if(upload.status == UPLOAD_FILE_END){
G W( l' {3 h' @ - if(Update.end(true)){
. A, r4 n2 z5 B" t* a& N - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
; E/ g0 v0 j. m. B9 F, ]6 g - } else {
: h- N) b4 i/ \5 M! I7 M - Update.printError(Serial);
$ O; F0 T1 P* q# y4 @; b+ _ - }
@) q0 ~$ ~/ C& K - Serial.setDebugOutput(false);8 s1 J# m; u4 T: J
- }
0 e% L! u1 b6 p1 z5 Z0 c1 r4 V - yield();
) a) Y/ r5 `- i6 \( T9 _ - });7 l' m: Q7 d5 W' Q" W* Y
- / [1 w1 O! L1 ~. C" ?( q
- digitalWrite(2,0);* O d7 o6 R2 B+ I' u
- mainAction();1 e# }, }4 A$ y
- if (digitalRead(0)){/ c- k" r5 T. e3 O B
- ESP.deepSleep(0);
, a' y4 k, S( S I - } else {
' C2 g6 j$ w8 W - server.begin();: E3 E) w: C$ f8 b+ n
- }
# `7 r* P- a& M. P+ S - }
) o/ L' w. l. t( t - void loop() {" W* w9 o8 r# R9 K" y( d
- server.handleClient();
8 A! |7 k' M- f/ v' d1 W - delay(1);9 l: }& u0 Q) p
- }) J+ b, r9 Z) {9 O
- String doGet(String url){9 {( |4 ]6 m' A% Z3 X# s) P
- if ((WiFiMulti.run() == WL_CONNECTED)) {
& p6 [* f& s2 y! _( K/ Y, @) u - HTTPClient http;
; ^( M# F9 c3 b* f) i - Serial.println("[HTTP] begin...");
! p7 a) _5 O& X - if (url.startsWith("https")) {
! X& W% S; u; x4 ?9 i( M - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");! s+ A* ^2 M' M6 x7 I
- } else {! M/ a0 {% Y8 ?, Y" j7 I9 |
- http.begin(url);
9 w1 u/ j: Q( D1 s6 i. B - }
1 H& P8 _% S; k: w2 K) X. G8 _ - Serial.println("[HTTP] GET...");
9 ?/ [9 u$ i7 u, e - int httpCode = http.GET();. e: f$ L: \& z7 N9 O
- if (httpCode > 0) {8 Z$ d$ b1 K9 ~6 H( B% U
- Serial.printf("[HTTP] code: %d\n", httpCode);1 L4 R! ?) c+ `; \+ y3 G, ]
- if (httpCode == HTTP_CODE_OK) {
; a2 f2 E8 b' ~; e7 b* U - String payload = http.getString();
( }: k0 }% @; N: z9 f - Serial.println(payload);
3 k! Q7 t5 C& o6 I+ Z& O: a - Serial.print("\r\n");
: z8 G! [7 k' j' b& W - return payload;# x/ ^* e/ c, V6 h& |8 M8 O
- }% ]9 |2 w0 S; O' h7 }+ K, g
- } else {
, h$ U2 o) U9 \$ V! o - Serial.printf("[HTTP] GET... failed, error: %s\n",
9 x l I4 e/ L6 T7 [ - http.errorToString(httpCode).c_str());
i* q$ ~) O0 y G; Z0 Y; O - }. L/ | ^# ~4 w' h
- http.end();
; C% ]8 U6 Y$ h' h - return "";
+ t7 A) o: k* T% X2 Q# b$ N - }8 c% O2 R- Z. I% q$ e
- }
- b. h) N9 w/ P0 [/ q' w - void mainAction() {
/ x9 k# d; F) z2 Q5 ^0 ~ - // 发送请求
1 c e7 N6 r2 s% m% \ - doGet("http://google.cn");
1 o0 Y. J5 o$ ?. `' d- l2 V( ~# f' g0 _ - }
* T" u X1 I) ^4 |! C- i5 j
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