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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)
- C S, T1 k8 g+ C! x! n; K8 p) f- #include <ESP8266HTTPClient.h>
& p- O, O' O% n0 Z0 {5 D ?& | - #include <ESP8266WiFi.h>( Q) O- ^6 ]% a0 p: n( n M/ H; C
- #include <ESP8266WiFiMulti.h>
# ?, _" G$ f+ E# n6 U; `. B# k - #include <ESP8266WebServer.h>
S8 |5 j7 L, ?# P, B$ X - #include <arduino.h>8 Q) Y( l' B4 U I l
- ESP8266WiFiMulti WiFiMulti;
+ h9 h9 X; d0 Z* g' ]( X3 ? - ESP8266WebServer server(80);; n/ v& N |4 [. {2 l L
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
6 U. k! ?4 Q+ r/ X0 O+ q9 M - ADC_MODE(ADC_VCC);9 W9 F3 k- {8 B2 j$ @
- void setup() {8 D7 H% _+ F4 r, W3 V$ b
- Serial.begin(115200);
. o$ a" @* G5 Y5 V0 z$ H - Serial.print("\r\n\n");
# f; S5 x' h; P; Y) d - pinMode(2,OUTPUT);& ] x6 ~# p! u( V$ c4 r
- // WIFI9 _: ]& L7 B0 _7 J4 N; K3 a
- WiFi.mode(WIFI_STA);) z' q; `, r9 I4 i6 W" u& m# E
- WiFi.hostname("Sparkle");
/ K/ I7 J7 ]( J# T: \' o - WiFiMulti.addAP("wifi ssid", "wifi password");4 v. j& Q( _6 W9 O6 y! g# g
- int tryNum = 15;
( B' n$ d2 ^5 j4 m - Serial.print("Connect WiFi");
; Y+ K9 w; d9 o/ L - while (WiFiMulti.run() != WL_CONNECTED) {
* s0 G$ v. D7 T0 h' U) J - digitalWrite(2,0);
: c# V4 o' X! q) s; Y4 a - delay(200);3 \+ ?! T4 G. T
- digitalWrite(2,1);$ K$ r* U0 f+ ]
- delay(300);( i3 c. `0 {& z$ L2 v. ]
- Serial.print(".");/ c4 g) F6 {! _, I6 C
- tryNum--;" n+ S$ W9 \# }2 v) L" S; t( ^
- if (tryNum == 0) {
( s/ b. w# b$ l, P. ~ - // 1min
; h$ f z, J( F7 `' c6 g - // ESP.deepSleep(60e6);
1 o* a4 |. Z1 V, @ z - ESP.deepSleep(0);9 N" O' Y+ t( Q [$ f+ p
- } U p1 g8 ?1 e4 x* a
- }
+ O5 `4 e1 i3 C3 U3 ]# s, t( f4 s, b - Serial.print("\r\n");1 a% x. {& z1 {- h' i$ x& {7 x3 K
- digitalWrite(2,1);
- h) ~5 R; y; \; W: N% ` - Serial.print("IP address : ");; H8 Z* C& v Y) k$ V% M. n" p% Z
- Serial.println(WiFi.localIP());. C2 n9 `7 V# C3 m3 f
- server.on("/", HTTP_GET, [](){/ }( F" ^4 i0 n. m5 @
- server.sendHeader("Connection", "close");3 j! h: v* n; \/ v* j
- server.send(200, "text/html", serverIndex);
+ T8 H6 Y! q" A! Y0 q. u - });3 B5 }' {3 d; ~# R
- server.on("/update", HTTP_POST, [](){
. O* {( R& V" B* s% H- M - server.sendHeader("Connection", "close");6 E, l+ t, e; {3 T7 y4 q# G) S: y
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");8 p7 O$ ~+ F/ z! ~: i
- ESP.restart();' a/ l3 r8 q3 u: r9 w) ^
- },[](){7 M7 o: K9 C/ p* f, Y
- HTTPUpload& upload = server.upload();1 ~3 z; ]5 ]4 ]8 m
- if(upload.status == UPLOAD_FILE_START){ w7 R$ C% s; ]3 \4 X9 t% q
- Serial.setDebugOutput(true);
6 {& L. f, F: j - Serial.printf("Update: %s\n", upload.filename.c_str());
a; q% H9 E' g( U6 p - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;6 }* O/ |% j, c6 [3 [2 `; x9 {
- if(!Update.begin(maxSketchSpace)){
$ }1 u0 f+ s% h' j6 g - Update.printError(Serial);
4 A$ M7 u6 H8 o" q2 d5 k. [ - }
) q& e: h8 _- l; e - } else if(upload.status == UPLOAD_FILE_WRITE){
, f- ^) g* x% y, s# o4 g - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
1 t9 h; m# ^; ~2 T0 O! o6 |6 g - Update.printError(Serial);
8 f( g$ g& F( E9 f, A6 Y% _ - }+ |0 L; F" Y7 C/ f# i J+ A) M, k
- } else if(upload.status == UPLOAD_FILE_END){. Z7 j* F$ F/ o7 z
- if(Update.end(true)){
9 i- S/ j) i7 q6 d) c# [ - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
$ v0 G: Q4 t8 N8 r2 N4 @4 s6 e - } else {! u) p% r! z9 O5 w, D
- Update.printError(Serial);
7 F6 X" z) |2 ] - }
$ v, u( ]- {& c# p( V0 J - Serial.setDebugOutput(false);
* s |& ~" u* Q - }
1 O. h9 y, r) j+ \ - yield();5 O4 ^# v. L* |
- });9 q# ~5 J6 v2 ^# l. g
- : `; q+ M' _1 q
- digitalWrite(2,0);
7 h0 E7 r7 @; @1 g - mainAction();' M% { {: O/ {, ]4 o) }. Y! Q6 H' v
- if (digitalRead(0)){& z5 c& Q5 x1 q$ k! b: ^/ m3 K
- ESP.deepSleep(0);
% r0 \. V$ L9 }9 ]0 {: a& F - } else {
$ a& G/ J4 O1 A2 f, K - server.begin();
/ @0 q6 h/ t! F! Z) h6 D9 E. {! ] - }- y& R' p' N2 }5 O- o( y
- }) w( x5 R! `/ j
- void loop() {
( S! ~# |( P7 ~( B, O/ u - server.handleClient();
" t7 X0 d4 ]/ l - delay(1);
& U. ^3 ^+ j, b9 |3 S - }9 X3 H2 n: ^; J9 D4 t8 l
- String doGet(String url){
/ y. j8 B9 c1 }* x8 O4 ?/ o - if ((WiFiMulti.run() == WL_CONNECTED)) {6 \1 L- y/ ~, N' ^. z: l4 ]! y& \
- HTTPClient http;
1 B- Y; B8 Y3 S X+ u. Y - Serial.println("[HTTP] begin...");4 W: H2 O2 t( B8 N d# p
- if (url.startsWith("https")) {
+ I2 f- _$ e' g9 c1 v1 k - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
! s3 {. c: y7 z8 G+ s G - } else {5 D7 R4 h& C% V* \" U9 p+ }
- http.begin(url);: A& {8 h( S% O- [) [5 I
- }
# C) F% a9 {" P& W# O" |1 O( ^ - Serial.println("[HTTP] GET...");
M( E8 @# g+ \8 F - int httpCode = http.GET();5 X, X7 v6 G4 x% ^8 W1 T
- if (httpCode > 0) {
- O" ^2 q1 k1 W - Serial.printf("[HTTP] code: %d\n", httpCode);3 V; @: ^& v8 [; S5 G% a T
- if (httpCode == HTTP_CODE_OK) {
) q* r' I/ o- M! E% X6 m8 j - String payload = http.getString();" i: a0 \7 G" Y& C- ?2 S1 A( L# Q! \
- Serial.println(payload);
$ X, M. j6 [& K% }# c - Serial.print("\r\n");
A' ^7 \0 k7 I ]% x4 I6 L5 e0 M; a - return payload;
. v5 V/ R6 L( ]7 m. b - }4 {( O3 A1 i/ h3 \7 _1 O5 g
- } else {
0 I( ?- y% x# `; M, d/ v T - Serial.printf("[HTTP] GET... failed, error: %s\n",
# o6 L# ]" a _6 W - http.errorToString(httpCode).c_str());
7 P% L2 C4 g7 w) w$ V! ?% n7 G - }2 V* [. m6 k/ D3 R+ Z$ t
- http.end();6 o8 B0 f" Z% c5 l$ D( G' I+ ]
- return "";
( | T, I( r# j) m4 f - }
z5 s+ s5 @. w- l5 }7 ` - }+ T: q' p% B% d4 }6 C7 t; a
- void mainAction() {
3 E6 J5 D6 P1 t) | - // 发送请求
' b- X$ t9 [) n" G - doGet("http://google.cn");& _' Y& X5 x8 i8 u/ Q
- }
% N3 Q2 p) G8 N6 w! H$ j" o" }+ J
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