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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)
" b& L4 k' c9 Q- X- #include <ESP8266HTTPClient.h>% q3 r* v# W6 @9 g8 G
- #include <ESP8266WiFi.h>
4 a0 g4 S/ x. @+ @. V - #include <ESP8266WiFiMulti.h>
3 o2 w! |' w/ s* o; w" n; ] - #include <ESP8266WebServer.h>
4 R# U! }# s7 c( m9 K7 e - #include <arduino.h>, ^1 g2 y8 F$ T1 \: q: z
- ESP8266WiFiMulti WiFiMulti;
, H- l- C4 h+ D - ESP8266WebServer server(80);1 P0 C2 U) x7 G9 U0 W- Y' x( l' O
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";) b x6 `9 \6 h `# t
- ADC_MODE(ADC_VCC);
: P1 ~$ x* a1 c* Q1 }$ l" m$ Z - void setup() { Z1 \/ ~9 I6 Z: B; P, U
- Serial.begin(115200);
0 U6 N1 Z! B4 y$ T# s: Z5 \ - Serial.print("\r\n\n");* N+ X! [( F7 I( C
- pinMode(2,OUTPUT);
% t" @5 j w" ?8 R - // WIFI
' g' W- c9 ~' L4 J% U$ d - WiFi.mode(WIFI_STA);
+ R/ B) p8 t" g m) | - WiFi.hostname("Sparkle");% c) g- j( u( n8 j# k% P/ v" v
- WiFiMulti.addAP("wifi ssid", "wifi password");! `9 ?: \$ U& k
- int tryNum = 15;; z- V6 Q% m2 p# d; I4 g
- Serial.print("Connect WiFi");7 r( U8 L, r Y- ^& U
- while (WiFiMulti.run() != WL_CONNECTED) {' S; t0 `* g% L. s9 a4 }
- digitalWrite(2,0);
* {7 o; Q0 R% o7 | - delay(200);; t) \& S! ?& o+ w
- digitalWrite(2,1);
- S# ?- i9 A' `6 T% n! z - delay(300);
9 H% A$ C* x3 Y3 @ - Serial.print(".");! a w" |' {6 X2 k" {" d* n
- tryNum--;
, m3 O7 S r. ?* v2 Q b. f - if (tryNum == 0) {% s9 {% d7 ]6 |5 A: i
- // 1min6 u/ w+ i" v b( J/ p4 p
- // ESP.deepSleep(60e6);
9 R( R4 P- A/ H1 U k' I - ESP.deepSleep(0); U# `5 w v5 T" `% N4 u# f
- }
' G& }) e/ P" W$ X0 q - }
8 q' h$ y% b+ ]1 L y - Serial.print("\r\n");
4 @: N: q4 x2 q& \ - digitalWrite(2,1);8 {4 w7 Y y# Z
- Serial.print("IP address : ");+ O. _. _) U$ R ?$ g4 A9 e1 Z
- Serial.println(WiFi.localIP());" ?2 k! G$ Y& @5 o
- server.on("/", HTTP_GET, [](){
. i2 ]* u9 I. ? - server.sendHeader("Connection", "close");
/ N# o7 t5 e$ g6 S% S5 s - server.send(200, "text/html", serverIndex);% x. o4 t8 @# i2 w' j4 i2 }
- });* Z! O+ y1 t, x# [
- server.on("/update", HTTP_POST, [](){
9 ~/ \) h/ Y: w4 N; h% w$ o. Y - server.sendHeader("Connection", "close");
. h' u" W3 a1 O( b* O( \! i% M - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");3 u' l6 e" r- z* L
- ESP.restart();2 @8 Q& U0 ]8 O: b; a9 }
- },[](){
. c7 D+ L) Q# E - HTTPUpload& upload = server.upload();2 B5 _& h- y7 Q/ |# b4 l% Z: R. v3 j7 Y
- if(upload.status == UPLOAD_FILE_START){6 K3 u: w; K( C7 t
- Serial.setDebugOutput(true);! r# h+ s _& E. @0 f+ i
- Serial.printf("Update: %s\n", upload.filename.c_str());
7 y$ B3 G" [ j7 O6 B - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;2 Q1 F0 u0 [% K. ^# a! q, ?
- if(!Update.begin(maxSketchSpace)){* v$ d+ N8 K6 [7 c! u
- Update.printError(Serial);
( J. j3 G) A9 t. y# }; }) f# f6 d# b - }
9 T, _8 Q& {7 [! D0 B$ r - } else if(upload.status == UPLOAD_FILE_WRITE){
( B+ H0 x5 t: t$ L0 s" | - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
) l* Z, z, x$ `9 w+ S4 S - Update.printError(Serial);, x9 N* @( x1 e8 |" e
- }7 v; k. p+ k2 M8 m6 g
- } else if(upload.status == UPLOAD_FILE_END){
' X0 E% T4 w% ^3 O: m; W# z - if(Update.end(true)){2 R9 b1 V& M0 x0 B+ @- P/ Y
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
/ t% E; o: }, Y2 g( x- o - } else {5 {' g* ?# D# U" I( d6 l9 ~
- Update.printError(Serial);
; O, l; ]9 W; t1 ]# \ \ - }0 c* w. _# K \6 s3 W
- Serial.setDebugOutput(false);
/ x; `4 f3 z7 H7 Y - }
3 {+ B/ n! Z% s - yield();! M% L6 H0 i+ d; \( g
- });
4 l3 c9 j% d9 ^& T% R( |: k - , v: Z1 ]4 i1 c4 y1 B# b
- digitalWrite(2,0);; c: B2 g" D8 ]( c
- mainAction();6 |! w4 f1 N7 f
- if (digitalRead(0)){
) \8 P: E) i6 a5 l3 C2 N - ESP.deepSleep(0);
6 h3 v; e* J7 A0 F/ m5 Z! O - } else {/ N4 u- L* Y* W$ e
- server.begin();& p+ b2 h8 P0 [. I5 ]2 i
- }
+ n9 j& D* {0 ]" C+ Y: J - }
: Y5 \! a& I4 g# `/ {" @0 w - void loop() {
2 v# a8 v: c9 h+ P - server.handleClient();
7 f# j$ i5 g0 b1 z! R2 r& {) { - delay(1);
% B( M# g" K# V2 d0 a; A - }' S- b$ \ q/ E1 t0 U
- String doGet(String url){
" ^5 ~/ m( p( w- a - if ((WiFiMulti.run() == WL_CONNECTED)) {
' M- W0 j1 Z5 O' [, Z6 B Y7 g9 d1 N - HTTPClient http;
* u3 ]: G0 t1 N! ~3 a/ G% j - Serial.println("[HTTP] begin...");
0 T7 e& M! `$ P; n9 a, I - if (url.startsWith("https")) {
7 V4 M3 b4 F' T. U: n2 q& z - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
; n. h/ m* g( N. w - } else {
7 T$ e; I1 T. M* N% w9 ~ - http.begin(url);. d" D+ q" U# W% x" q# f
- }
% w+ h% s1 w2 c8 Y6 L - Serial.println("[HTTP] GET...");* J/ ~# E8 U \9 _3 U1 R
- int httpCode = http.GET();
! ~* N: J. `% T6 {. a) w; \ - if (httpCode > 0) {
, s* P \: d- q8 b9 k$ H4 b# h6 U - Serial.printf("[HTTP] code: %d\n", httpCode);
: K# F5 Y8 y0 q - if (httpCode == HTTP_CODE_OK) {4 _2 G2 |# ]* I( ~, [5 W' U! u
- String payload = http.getString();
8 R' c, p. v* e3 n# O0 H7 C7 m7 K - Serial.println(payload);9 Q; M% h' e" h0 y
- Serial.print("\r\n");( @* w1 _! \8 |8 U
- return payload;& L+ B5 c" U1 E5 `
- }
" O! q. i8 p3 ], J7 j2 L8 H% V- `* \ - } else {
# r$ B5 x L5 N( j! D; s- O3 { - Serial.printf("[HTTP] GET... failed, error: %s\n",$ v6 P' ^# R6 ]
- http.errorToString(httpCode).c_str());) }9 x5 v9 m2 [1 J m
- }
/ k- |7 H' M8 I9 g1 z' Z) X: c - http.end();- a) D* N! w U$ _: V
- return "";3 P$ w! I: N( Q# e& d5 [) O- i3 R
- }
; C4 G* X* S# Z# O& g7 n2 m4 p - }7 N" h. s( Z+ r; C
- void mainAction() {6 Q; }% m3 N, o. S: w8 G% d
- // 发送请求3 [7 z, D5 x* X4 P4 l
- doGet("http://google.cn");
4 V8 ~, l {/ `, v! V, g1 S+ \ - }
- S7 K; R2 M+ X# W+ `+ e
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