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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)1 c8 N. b3 z F$ x( F
- #include <ESP8266HTTPClient.h>
0 d. }1 x$ W- e$ j& w w0 \ - #include <ESP8266WiFi.h>
C2 r" O5 o$ L; r/ _ - #include <ESP8266WiFiMulti.h>3 ~. E# {8 e K0 _
- #include <ESP8266WebServer.h>
) K( f) a# u* w4 F - #include <arduino.h>" u, d' \: X' y$ ?
- ESP8266WiFiMulti WiFiMulti;
1 x! v- B u+ G- O% ?/ { - ESP8266WebServer server(80);
7 I* O6 o. A5 c0 w - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
! c9 d" m* @* O6 f2 T - ADC_MODE(ADC_VCC); d P2 @- d: s) m/ k3 _
- void setup() {
7 J& o3 @2 B/ s+ W5 K+ n - Serial.begin(115200);4 f6 q6 {1 E* @7 b3 V0 t
- Serial.print("\r\n\n");* c5 h7 O+ { a, E0 {# F
- pinMode(2,OUTPUT);
! [. H: Q, m" k% {: s - // WIFI% O. a# @" {# Q" D
- WiFi.mode(WIFI_STA);" ^5 q3 L. z; [
- WiFi.hostname("Sparkle");: r8 [# y- `) Z7 R
- WiFiMulti.addAP("wifi ssid", "wifi password");
7 q7 |; N V6 Z5 o4 [/ h( N: X$ h0 m - int tryNum = 15;
$ Y: h, U! ?7 _- W) _( o - Serial.print("Connect WiFi");
1 u0 J. k+ r5 d+ f0 z; U% }" o( W - while (WiFiMulti.run() != WL_CONNECTED) {/ {2 j/ a& |! {; g
- digitalWrite(2,0);
, S$ |4 u1 q6 |& W8 a0 j - delay(200); X T; s8 [3 N8 \* }9 x
- digitalWrite(2,1);# G& Z) Y8 m4 }0 z
- delay(300);
/ m7 B4 h+ X4 s5 P& |7 n - Serial.print(".");
1 N5 E* J. n- ~ - tryNum--;
6 C+ r/ a$ Y3 x. m - if (tryNum == 0) {) ?. i: r t3 @, A
- // 1min+ ]7 @5 O6 J0 C; q$ U) ^" D v7 Z
- // ESP.deepSleep(60e6);7 P& l- z" R$ t) [9 B# D
- ESP.deepSleep(0);
. X; [3 ~# K5 I' h% @ - }: K4 Y0 y4 ^9 h/ B1 j
- }
! Y3 o# y" M" u5 Y) q3 ~1 s - Serial.print("\r\n");/ g; C2 ?8 R& {. j" V
- digitalWrite(2,1);
8 b6 ?! |2 K1 x- [3 A - Serial.print("IP address : ");
* o8 w% i6 @( \; c, l$ E - Serial.println(WiFi.localIP());
" A0 U+ z( ~" n- w; t. X2 l3 [ - server.on("/", HTTP_GET, [](){
! Q" v1 D: y( `2 M. N6 E - server.sendHeader("Connection", "close");
+ S# n$ w0 v# H, u - server.send(200, "text/html", serverIndex);
! Y8 e' a) ?( `; U2 [! G - });7 k# ]; Q6 b9 K, a1 J
- server.on("/update", HTTP_POST, [](){
- {) J0 q g, y1 P" X$ `2 l - server.sendHeader("Connection", "close");
( |6 J5 ]( [+ F - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");8 w2 E8 G% L5 ~5 @( t
- ESP.restart();- h# h# A* p# G& S+ P
- },[](){3 R9 [# R$ X. y5 n7 ^' ?7 g
- HTTPUpload& upload = server.upload();
+ Z* {5 i( q' J( C# b' z - if(upload.status == UPLOAD_FILE_START){( c9 D X0 ~; Y7 l) }
- Serial.setDebugOutput(true);' V, k! ]1 q3 |" s: j7 R' P3 ~. H( ~6 [4 S
- Serial.printf("Update: %s\n", upload.filename.c_str());
M" g9 a0 v( ^+ h% g% S! V! h - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;6 a0 A8 T; @/ S2 \9 t5 }7 d# [
- if(!Update.begin(maxSketchSpace)){
w& w6 d) |" J- d! E - Update.printError(Serial);
' I/ V% s/ u" ~5 o - }
; E6 X7 e, ~0 u - } else if(upload.status == UPLOAD_FILE_WRITE){
' e( ?6 D% K- S' o, P* k - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){2 S& i0 W ^( X/ h1 W% D
- Update.printError(Serial);
" t6 ^/ B9 h- i! f$ G - }
4 _' @2 g* f! d& C( ~ - } else if(upload.status == UPLOAD_FILE_END){
! @& T7 u) h! |9 H4 I - if(Update.end(true)){
T2 v5 q; F& A4 ` - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);+ V7 I- E! d5 X+ x
- } else {6 `: G: _1 D4 _- M- \
- Update.printError(Serial);* H' d6 ^! Y' P
- }
I9 C: G Q) W - Serial.setDebugOutput(false);) @& M6 k6 O" |; i" b3 k
- }% N f9 |* C/ o( n d
- yield();
C- M6 h: j5 @ ~% s: t - });/ U& r- m! S6 u" R& x
- 6 G% @# J; M8 W/ S' P9 |4 {: Z
- digitalWrite(2,0);5 i+ F/ Z% L% f/ u# o! k
- mainAction();) B: e$ G* x7 Z' n i
- if (digitalRead(0)){
+ b1 j8 u1 b: f6 ^ - ESP.deepSleep(0);% k: d& C" U3 c l; |6 T6 d
- } else {
1 n, W0 e: [9 @. t9 q$ y - server.begin();7 r* C! u: i6 c0 m6 f* u( Y
- }
% F8 G. S9 W& C) u' x) K+ X8 q+ W - }
( p3 ~ Z& j7 D6 a1 ? v - void loop() {0 j% H }$ m( `; y/ I% t+ [/ T5 |
- server.handleClient();; |; y) I: e6 y$ Q% E: M8 G
- delay(1);
( V0 |+ p" \ y* k7 [ - }: _7 q) O. `+ U$ y2 {3 G
- String doGet(String url){! a. V7 H# _& V9 f# e: T1 R
- if ((WiFiMulti.run() == WL_CONNECTED)) {. [8 B9 k2 R- J( B0 ^9 o1 d, u2 h v
- HTTPClient http;4 l; r/ R, v; l
- Serial.println("[HTTP] begin...");
( e, E) q5 i' J - if (url.startsWith("https")) {. k6 p* J7 `2 ~. v4 W+ R
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
6 c$ H- ~% N& g$ C - } else {
( }* E" P" C l0 S6 [ - http.begin(url);
/ Y* M4 h m+ [ - }7 @3 c& J) V: c0 _. R' r
- Serial.println("[HTTP] GET...");
! W2 G& w% e. ~5 ^1 W3 M - int httpCode = http.GET();
( [9 V) P S- N3 K1 l2 y& Q A - if (httpCode > 0) {
& M0 S6 i( C! `1 ~ - Serial.printf("[HTTP] code: %d\n", httpCode);
$ l! ^/ P2 y9 u$ U2 P2 | - if (httpCode == HTTP_CODE_OK) {1 X# M# ?; y% b j
- String payload = http.getString();
, L* A# \* ^$ @ - Serial.println(payload);
- q- W( Z) u J1 {0 c3 L+ Y - Serial.print("\r\n");
' C* v6 K3 X5 C6 t - return payload;1 T9 h8 h+ ]6 ~4 R" ]+ ?* v% T
- }
6 R( C: f5 t$ b6 h1 y. r) k - } else {6 {- M4 }5 w# g* n
- Serial.printf("[HTTP] GET... failed, error: %s\n",
' w3 L# g$ _0 r0 ]. [ - http.errorToString(httpCode).c_str());
* P4 D: F: ?& v& [, g1 s3 y& r - }, E) x. s" s3 p. w% I
- http.end();, t1 t9 o. {4 k% t! C
- return "";0 B6 m( x- T! S4 d- [1 v6 Q: K
- }
( R7 a& ?. |( O. } - }
: s0 J9 {4 |+ }# Q% b$ u; N [ - void mainAction() {
5 W) Q2 }* a! ] - // 发送请求
9 r6 W9 L8 f" H0 n - doGet("http://google.cn");* ?5 M0 ^* x+ O
- }8 t E3 _# Q# O2 g: r0 d& J4 u
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