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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)# j7 k6 K1 W" _# H) H: u" M, t
- #include <ESP8266HTTPClient.h>
5 Q: Z: \# P. g }: B ?- s8 n* Z - #include <ESP8266WiFi.h>; A( m: H3 C7 ^4 l# j7 a
- #include <ESP8266WiFiMulti.h>- `: d' Z/ j0 k1 E" H5 {+ c
- #include <ESP8266WebServer.h>) Z0 g( w2 O( M/ q9 G* \
- #include <arduino.h>
1 Y" e2 b9 L# N7 Z ` - ESP8266WiFiMulti WiFiMulti;1 W1 H( y+ Z% e1 {
- ESP8266WebServer server(80);
7 h- `: `, e* w$ o u5 z' j' k - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
" t7 ]( [4 Q" M# H8 ~/ U( z - ADC_MODE(ADC_VCC);
. E5 K4 v8 L9 g0 l - void setup() {8 l, L) l2 R. c
- Serial.begin(115200);
! u& n- q* q6 K3 e* O2 r - Serial.print("\r\n\n");
, K" j1 ?2 n0 n8 u0 X$ \* { - pinMode(2,OUTPUT);" ~, r& y+ X. w; X1 {2 ^
- // WIFI: k/ H, m+ c. }
- WiFi.mode(WIFI_STA);* I i- s0 V$ J m+ R2 Q1 M
- WiFi.hostname("Sparkle");+ D; k' @! k" v1 ]) I3 O z& Y
- WiFiMulti.addAP("wifi ssid", "wifi password");8 D3 N/ t U X+ u h& O( ~' p/ O
- int tryNum = 15;& ~% A8 n% C q! T
- Serial.print("Connect WiFi");! h9 J ?, M8 Q1 \
- while (WiFiMulti.run() != WL_CONNECTED) {4 Y9 A* H4 W I1 \# a
- digitalWrite(2,0);
! M! {, {' ^4 V- d# E - delay(200);
/ C/ d L: M) {! c) U- G+ v - digitalWrite(2,1);
% H% x% L' E+ ]3 U" [6 I W - delay(300);2 M5 i! S; P$ k* d3 J) Y
- Serial.print(".");2 h; B9 q- p6 p9 l7 ~' M
- tryNum--;
0 T B4 n* N" m9 U: P7 P - if (tryNum == 0) {& Y: P1 ?5 S$ A8 a; E" {
- // 1min( t- n& L: u% r2 t
- // ESP.deepSleep(60e6);
+ e* t6 l/ @. C - ESP.deepSleep(0);
! E$ l8 B. R+ _, O0 {; \ - }/ x" F9 o ^2 @! O
- }$ D4 i8 C: I# ]7 X3 j2 {
- Serial.print("\r\n");3 \! \4 e, l( a8 B1 {. X2 M
- digitalWrite(2,1);
* k' Z3 ?( I% @- q. h - Serial.print("IP address : ");
% d5 U5 k+ X) n# q3 y. f, f; c - Serial.println(WiFi.localIP());
4 T; x+ f/ b2 ?3 G - server.on("/", HTTP_GET, [](){
' T3 s7 p1 A$ @1 o; k - server.sendHeader("Connection", "close");- _/ `" j: H5 i0 ~( W1 `
- server.send(200, "text/html", serverIndex);
/ K; d2 t; p' X Y" }+ t - });& J8 J# G8 ^# W
- server.on("/update", HTTP_POST, [](){
8 f8 p# ]. ? ?. K5 S! [ - server.sendHeader("Connection", "close");/ y2 b* l5 `- Y/ W- ~
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");3 ?7 M& a A: W- ]8 U4 k1 v
- ESP.restart();
u6 Y m2 {- A# ?' l1 z+ o - },[](){
+ Z! ~( k( A( P - HTTPUpload& upload = server.upload();$ v# h r8 J% C- W, C0 Q: H
- if(upload.status == UPLOAD_FILE_START){# D, Z0 p7 C6 q a+ K4 Y5 q
- Serial.setDebugOutput(true);/ c/ L8 G! f, W1 r2 M9 F
- Serial.printf("Update: %s\n", upload.filename.c_str());; |" b K5 P* J- {. [
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;7 C i* u& s# b7 H F
- if(!Update.begin(maxSketchSpace)){2 }% o" y7 `. K& t6 v4 g# J: ~
- Update.printError(Serial);' G4 H) b2 d( k7 t0 |
- }
# z$ O$ @# g% p0 q w/ }) v - } else if(upload.status == UPLOAD_FILE_WRITE){
1 I9 ^# j! e$ q3 w9 \* k( o - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){( x7 t* v3 n" ^7 t* a
- Update.printError(Serial);- G$ [; A. t+ t, Z" Q: O# e
- }
; h! J0 h/ _- e# k - } else if(upload.status == UPLOAD_FILE_END){
2 M$ Q2 ?: X0 u$ M" s" N, N5 p( [ - if(Update.end(true)){! }' L$ Z% h0 K9 U
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
# T+ T( a8 B L) d u - } else {
" J9 _& z& U% ]+ b7 p - Update.printError(Serial);3 @7 P& ?- e+ ^9 Q1 G: f
- }
" G4 }/ r. c P0 W1 W4 P/ L - Serial.setDebugOutput(false);( f* A7 I% C! l6 B
- }
) h e. u6 G& m( C& v$ P. @& p - yield();- H6 \& @2 u8 T. j
- });
, K U1 G2 ]% \0 [4 n! c# {) r -
; R. }0 ]) i4 l7 U; A0 B$ k" F - digitalWrite(2,0);
- C7 t! v5 g* B i! |" V M) F# L - mainAction();
8 R2 {, D6 @0 D1 m s - if (digitalRead(0)){* o$ O% s0 S+ a4 P% e1 B
- ESP.deepSleep(0);/ P& @) i' Q! q
- } else {2 K {# N5 A" a8 y2 A" l7 [
- server.begin();( j& |0 `5 R- X# L- ?/ q* e) ^1 S
- }
. [& b9 @) q7 d& r+ J" D - }
6 c# E2 Q. j/ j2 i - void loop() {
" i; E* f) F+ Z/ a1 d# ? - server.handleClient();
; k3 s6 ~8 p) M - delay(1);) k0 F; Z0 m% q2 m/ I1 b4 D8 t. k
- }
- ]; w) J8 J/ V d' [ - String doGet(String url){! t+ T) d1 O2 h, G6 g2 P* k
- if ((WiFiMulti.run() == WL_CONNECTED)) {
; r5 W( j) U& k - HTTPClient http;
' h( H" I2 \& T) O* E# h% Y, h - Serial.println("[HTTP] begin...");) E: Y3 w% D. s
- if (url.startsWith("https")) {
, X6 ^6 ~( O0 B5 u - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
% ^; K6 x( o) h - } else {; ]' Z# N1 `. L2 x0 l
- http.begin(url);
+ Y. \: M, j6 T, f6 {' b - }5 @$ s7 L5 H2 i% a
- Serial.println("[HTTP] GET...");
) a! V9 V5 I- k, f" ?' j N1 v9 w - int httpCode = http.GET();
7 d7 h& q1 c5 v - if (httpCode > 0) {
- I% f) y x) Y" ?# B4 p - Serial.printf("[HTTP] code: %d\n", httpCode);0 ?) i; A9 c5 k/ J
- if (httpCode == HTTP_CODE_OK) {1 N) }) b! R3 M/ Z8 _% T6 [: q
- String payload = http.getString(); Z# C7 K7 J( i) I/ X- [$ R
- Serial.println(payload);5 N. @+ L; a4 v# k
- Serial.print("\r\n");3 v2 s5 x+ v9 O0 j; V# t- T2 p2 ]
- return payload;, m* `$ q) ^7 |) u1 B/ V, P
- }
! ^ p1 _/ j) ]6 L. Z& w8 U - } else {
9 b, B% z' M$ ~) G - Serial.printf("[HTTP] GET... failed, error: %s\n",
# W7 ?. f3 K2 F# T% \2 C) M ]7 S - http.errorToString(httpCode).c_str());" R1 M/ \! p, Z9 }% Q; u! H
- }
8 C7 `9 D2 m* T0 H6 b - http.end();
& i* p5 h' V/ V; b! k - return "";" |9 ]7 h, D0 x5 Z B" i/ s& _
- }
7 j6 Z1 [1 I- M4 b l3 |. g - }9 g; }1 R# [) l+ s
- void mainAction() {
, |2 V. E# S8 q$ n- c8 a- G - // 发送请求* }. y! H2 L& C$ L, B2 J; z: Q3 O
- doGet("http://google.cn");/ C1 X+ j: l& o' `% l1 Q+ h. I* c
- }+ R$ V2 R3 S' A+ [0 b( Q
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