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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)9 ]) O- r! h. X$ F
- #include <ESP8266HTTPClient.h>3 k0 M2 Q, e+ u
- #include <ESP8266WiFi.h>
u. b* P( r; n4 g8 R/ { - #include <ESP8266WiFiMulti.h>' {4 u2 j/ V5 c! v
- #include <ESP8266WebServer.h>; G& ^2 j9 S# ]( s0 O( F* Y" _# h
- #include <arduino.h>
. M% L. M# X& s: o* [+ Q* x9 s - ESP8266WiFiMulti WiFiMulti;
( o* T% d* B0 m, O! N - ESP8266WebServer server(80);
% S \, i P3 C/ W5 T/ M! V0 m - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
" D7 f- q2 e1 c. z: K+ D% S - ADC_MODE(ADC_VCC);
6 h7 t$ w6 Q& v' n, A, Q - void setup() {5 Q o- S$ A/ `2 u2 g
- Serial.begin(115200);* F) x: a) \: w: o8 w* L8 ~% A
- Serial.print("\r\n\n");3 H6 W+ {/ ?! v3 z+ `. h& r
- pinMode(2,OUTPUT);8 C( j8 ?1 A5 o
- // WIFI
1 L, ]/ _5 w. J- R. z5 H+ [ - WiFi.mode(WIFI_STA);
+ [8 e" ]* ?! E. }* j h* q# Z5 T - WiFi.hostname("Sparkle");
$ g9 q5 Q+ S1 M7 h* s" s - WiFiMulti.addAP("wifi ssid", "wifi password");
% O6 ]2 u- m& h. V0 }5 z - int tryNum = 15;4 P) A& c, W- Y) |
- Serial.print("Connect WiFi");
$ m; X# M0 S# m# F! c( k: R7 s- c. X - while (WiFiMulti.run() != WL_CONNECTED) {
) g! Y, p) x- j, ]$ ` - digitalWrite(2,0);
0 B0 m& M/ E2 m; _7 _ - delay(200);5 G2 T; Z! M/ [* m- |5 C* P- A/ |
- digitalWrite(2,1);+ C; n# ^ y' S# V& a7 E
- delay(300);
3 I$ \4 s% u* @) G! }7 G - Serial.print(".");. r5 M- m' y5 ]4 I! S) D" |) c
- tryNum--;
! Z- h+ l; L+ Y9 v$ F8 g2 m' S - if (tryNum == 0) {
& Q, P9 W( w- u/ i6 l& U - // 1min% ~. R; A$ Q5 `( ? @
- // ESP.deepSleep(60e6);" q& G5 H! x1 V0 F1 W
- ESP.deepSleep(0);
4 }, ]$ O% N# E+ W c" H) Y: F# v$ ] - }7 l$ J, _5 [& v( X
- }
( u6 s4 d/ n6 m5 q& y - Serial.print("\r\n");
; z! R7 W% S. m* P! r5 |+ Z - digitalWrite(2,1);
; e/ l6 |. |" h1 X. p& H- B6 a j - Serial.print("IP address : ");3 b- o1 B9 d0 ~5 L0 a
- Serial.println(WiFi.localIP());
5 Y, p( z" F$ g8 _ U - server.on("/", HTTP_GET, [](){. l% m% p' p) Z8 L- T% U* j
- server.sendHeader("Connection", "close");
% f/ V+ `. Y( g% O. ?: n3 W - server.send(200, "text/html", serverIndex);# q" W% B% O: A1 F# @9 A' E8 t$ `
- });' v( y, l% `( g8 W9 c6 \2 ~
- server.on("/update", HTTP_POST, [](){
6 A5 m" B. P* a8 \; y; \+ } - server.sendHeader("Connection", "close");
2 c2 w" u0 V3 a- D# v - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
x6 W# l, h: K0 y - ESP.restart();
. ]' |" V K2 q - },[](){* |' Q# d+ G, c7 B `8 S
- HTTPUpload& upload = server.upload();) a" {2 l. D- M1 ~; a# S
- if(upload.status == UPLOAD_FILE_START){" p& L* E9 z" A( U1 U
- Serial.setDebugOutput(true);
A! t' }# G( ?5 f: l1 A6 [ - Serial.printf("Update: %s\n", upload.filename.c_str());3 @3 S! w2 E) H ^. o% ~
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
; ^7 i( U- ?2 C6 g - if(!Update.begin(maxSketchSpace)){
9 R. ?/ c/ Y$ ]4 K - Update.printError(Serial);' \/ ^7 {& u* ^( Y9 a0 P
- }
/ b0 f3 D7 e5 ^$ g - } else if(upload.status == UPLOAD_FILE_WRITE){
' u& [+ w2 K- Y- ^# | - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
+ X! b& l$ r( I9 t) A3 | - Update.printError(Serial);9 q% s! p( m) d5 \& b: q
- }
, D/ V' u% ^% x' J, w* y4 y! z - } else if(upload.status == UPLOAD_FILE_END){
0 k2 d( M! [! C6 Z - if(Update.end(true)){; M4 A4 w3 A: H
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);+ n& a! E N9 `. }$ W' x$ o
- } else {
* Z: u- W0 ~9 @ - Update.printError(Serial);
# Z. |7 v3 [2 q8 ]& p8 x8 m - }
: m8 b3 }; x0 W8 k4 k- | - Serial.setDebugOutput(false);
3 _# H2 T; J& v+ }: e5 K6 q% c - }
) @ g2 f" d# A, y - yield();
# C, I! K0 Y4 T) f - });- r/ N/ D$ R6 M% Z2 v' S U
- / I8 N+ L3 u/ N; \3 s8 O5 h2 Y
- digitalWrite(2,0);9 M3 r @; X& b* N
- mainAction();
0 {2 c/ {9 A) s+ N) B2 t - if (digitalRead(0)){! u* \. {$ b1 E
- ESP.deepSleep(0);
/ S: r! b5 f$ {) u8 i+ H0 G2 O - } else {
& `% R; y2 A( u - server.begin();
9 D6 h& }( J. L0 e' Z3 z7 M2 [7 z% q - }6 \) B; _1 n* [4 p- q2 K& H/ ]
- }
) t" {. M' G6 s% f( ?4 T' t% B - void loop() {+ L% g; A( N; P, o# P: j% v5 ]
- server.handleClient();, a! O3 ?- u- |2 X
- delay(1);
4 i7 Q* @8 K) n' n+ a - }
2 ^( P' S, t, y2 i" P6 U - String doGet(String url){
/ t. v' F0 S6 \' ]- u - if ((WiFiMulti.run() == WL_CONNECTED)) {+ \! } z$ b2 N( d# y t
- HTTPClient http;2 ~! U7 ?! }. Y1 J8 @; B
- Serial.println("[HTTP] begin...");) Z% T7 ?4 K a! ~$ n
- if (url.startsWith("https")) {( `! U. K* _7 K" @* @
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
9 ?2 O. e* O* d' K' U - } else {- B. {8 F7 n- ]0 `
- http.begin(url);7 o: N7 H/ d5 _' w0 F
- }2 Y! A& z1 d+ B" ~6 C5 J
- Serial.println("[HTTP] GET...");* n$ Y# |9 c5 l+ q, H! X1 n6 X( S/ H
- int httpCode = http.GET();& l1 K8 z# w7 |. r
- if (httpCode > 0) {
/ D7 I1 J6 H: J% a# l3 Q9 @( o) {+ ` - Serial.printf("[HTTP] code: %d\n", httpCode);- Y/ s4 K* V3 V
- if (httpCode == HTTP_CODE_OK) {
U4 u% y1 o( N3 k: f - String payload = http.getString();/ |0 ]6 o) I# A* d9 F
- Serial.println(payload);
1 w \, A; d/ c. f0 |! |2 E: B - Serial.print("\r\n");
0 j$ l: l* P' Q- w. J - return payload;
+ n1 H: C8 F1 Q( C1 I2 G - }
3 n& m/ P" p; x. d8 b9 Z6 K - } else {
9 |. E) G; g& e& T2 D1 j% l - Serial.printf("[HTTP] GET... failed, error: %s\n",& p) I- X( }1 t5 e+ X( a: J
- http.errorToString(httpCode).c_str());
) t8 H# B1 P6 `# S - }
: c: V C8 l5 e - http.end();# z) o) P8 l: i' F
- return "";( k2 F- y" ~" E
- }2 g( Z" Q: K- S5 t% ~8 q( s& s
- }8 ?! J+ {' T; d0 y. P3 k# i
- void mainAction() {# L! u. }' z I* M4 @
- // 发送请求/ b' \" C. w! p0 N# Q$ r" T$ f
- doGet("http://google.cn");
5 b x' W9 B' n8 C - }% s% R/ q2 w% D W9 V) u3 Z
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