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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)
, U( L/ U) q. a( ]- U- #include <ESP8266HTTPClient.h>3 C; I0 _2 g+ P0 F" }
- #include <ESP8266WiFi.h>
5 B0 Q6 F( ^6 T% G& \: B/ } - #include <ESP8266WiFiMulti.h>
u5 o1 E5 k- x9 B - #include <ESP8266WebServer.h>7 W! r4 S. ]) c. x4 E
- #include <arduino.h>4 `! v7 m0 S7 v0 u c
- ESP8266WiFiMulti WiFiMulti;1 s1 a }7 p6 v) d
- ESP8266WebServer server(80);
5 z* t* ]* a& Q; |6 _2 X4 I8 L" N - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
5 g# [# u* y x8 h - ADC_MODE(ADC_VCC);; ^( f9 d% z# w t8 m$ G' K; y
- void setup() {
2 K5 p# l& v. t* n7 a& _, x - Serial.begin(115200);
( i' Y) V, v4 I J" P5 y: s - Serial.print("\r\n\n");
5 x9 d; A8 @. X& B - pinMode(2,OUTPUT);1 C9 N% u& B) F0 A! L
- // WIFI
1 Y+ d5 ?' s' L- E% L% e/ @ - WiFi.mode(WIFI_STA);. m# E$ g, q& Z- \
- WiFi.hostname("Sparkle");; Y: a L5 {! J2 l$ O8 E" W
- WiFiMulti.addAP("wifi ssid", "wifi password");; t1 A8 g: D' e; t
- int tryNum = 15;
' e- C# b' {6 z, A% A/ P. ^: d - Serial.print("Connect WiFi");
, M+ V( { l3 S, \$ i - while (WiFiMulti.run() != WL_CONNECTED) {
/ ^- m0 ?) I8 E* ~. C - digitalWrite(2,0);% O, S" b) f0 a, B( h' H
- delay(200);" {/ p& a$ y; b. }+ [5 u0 j: v( U& V
- digitalWrite(2,1);
5 T( B8 Y/ h6 ?' s1 w - delay(300);! l8 i5 {! R- X' I
- Serial.print(".");
1 r# K7 s' M' K$ T3 U - tryNum--;
3 e5 P$ s( S! E1 R- U - if (tryNum == 0) {) I' j" @5 X) X: |3 |! A
- // 1min) N; [) Z) E2 h1 P
- // ESP.deepSleep(60e6);- y2 @ I$ F. J5 F" c7 w
- ESP.deepSleep(0);- H% A2 J7 R7 p+ O4 n* U; B
- }6 D; {3 G$ t6 @7 W
- }
7 J$ G- E* H& S. P3 P I. J9 _ - Serial.print("\r\n");; {* x: ?4 j. M, ^, d6 u
- digitalWrite(2,1);$ i9 L; |) [& U
- Serial.print("IP address : ");9 T5 _8 M9 D5 g0 c' i ~+ [/ ^
- Serial.println(WiFi.localIP());# U8 Z- J T% i8 G- {: q5 x
- server.on("/", HTTP_GET, [](){) _# S% h4 O! J2 j0 g
- server.sendHeader("Connection", "close");
" g# A+ K l' Q. j5 h - server.send(200, "text/html", serverIndex);; p; n- B! W. V+ x6 n/ i" `
- });; x$ b4 |- G( I n% k- K e
- server.on("/update", HTTP_POST, [](){
: J5 `- w8 I* R( t' K - server.sendHeader("Connection", "close");
1 y c% v3 W8 n6 Z# k% ?$ }: w& F# m - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");; Q3 n7 e/ S4 Q: V, ^; r/ c. y
- ESP.restart();
. n5 L8 |+ T% I0 p - },[](){
8 {+ [# d: A, `' a8 v) L - HTTPUpload& upload = server.upload();0 `# }. C8 C, @" @& n
- if(upload.status == UPLOAD_FILE_START){
# W9 [/ Y8 x4 ?' @# ]* j3 T: i - Serial.setDebugOutput(true);
' K6 ?2 E9 y8 p8 K - Serial.printf("Update: %s\n", upload.filename.c_str());3 T4 w6 f7 q Y4 n4 I t
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;; U e/ M6 e e' ^& o) U: v
- if(!Update.begin(maxSketchSpace)){
5 @ b- U# `; t( g3 i, c0 f, u - Update.printError(Serial);0 b7 R( ~" b+ R& C# C* ^0 q
- }
0 z* A4 U) {& f) N, [+ D: T - } else if(upload.status == UPLOAD_FILE_WRITE){
8 Z: A$ m5 N+ V0 Y7 @ - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){* W4 C7 @. B: |+ U4 O. b5 A
- Update.printError(Serial);0 b* e5 z0 o% f ^" o
- }
% M+ k0 h3 u3 ^! u5 ^$ I8 X1 O - } else if(upload.status == UPLOAD_FILE_END){3 G6 R2 O# }$ U0 h7 w8 q
- if(Update.end(true)){3 @9 R' p7 G: l0 \- G8 V
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);: Y8 @; \& a6 H5 l. W& t2 e/ v
- } else {
) {8 ]% t* Q- }" s7 x# J8 N4 |6 H/ H - Update.printError(Serial);1 I6 Q1 b }) {4 m3 q' A
- }/ s8 D4 W% Q: \5 s1 y/ H6 l
- Serial.setDebugOutput(false);
9 v+ F1 ]/ x' B0 B9 ? - }7 [2 c( L* `: A) K0 [( k; m9 Z3 \
- yield();1 L# @) n0 f# {0 J# D) w
- });9 U: K" h. ?4 A
-
% A0 G* \# ]. M% Z& K, `1 O5 h - digitalWrite(2,0);7 w% U* h& o6 h6 [4 P* r
- mainAction();
7 m& r' }, k6 E% G$ W - if (digitalRead(0)){2 d! x- \! W' k V: Z: l
- ESP.deepSleep(0);
/ m N& N" \& g) A. k" Q- N6 F - } else {5 m. _% Q/ @# _5 {1 a0 R
- server.begin();
+ D1 p+ m: l8 M7 S: ]3 G K+ p; t - }4 ]3 W( C! J5 A4 o$ z! S& E
- }
# n8 D. O& p3 u& W( ` - void loop() {8 B0 y3 K0 V* X4 h
- server.handleClient();/ |2 A, ^# w; q1 O7 G& h& ]
- delay(1);
" K3 Z6 c6 {9 u4 k% ~! q `* ^ - }9 n! Y5 F6 N: p' @, x' M
- String doGet(String url){
" r1 j( _! A4 v; a/ c/ b - if ((WiFiMulti.run() == WL_CONNECTED)) {
3 l3 @7 `' a& G8 W1 K j - HTTPClient http;
; Z) p- |' B3 I% k - Serial.println("[HTTP] begin...");
) P( v" f7 b B' K( ^ - if (url.startsWith("https")) {" D1 f# o U( [; _ |$ U+ v
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");4 O) X5 l- C. R8 b0 g& d) L
- } else {
: M* R/ R! p( [6 j$ B - http.begin(url);+ X+ ~8 X1 u, ~
- }
$ L8 m: n+ m0 p4 h% Q( ?6 N - Serial.println("[HTTP] GET...");: ]2 a% V5 w( @- v3 D7 I
- int httpCode = http.GET();: u4 F8 [7 f1 V/ a0 E: G' C* g d) l2 r
- if (httpCode > 0) {; t- v$ C& ^. f
- Serial.printf("[HTTP] code: %d\n", httpCode);# o6 K5 N4 n, Y
- if (httpCode == HTTP_CODE_OK) {0 A0 A$ I8 }! g d+ n
- String payload = http.getString();* j8 O) c4 F; u7 i, u2 e
- Serial.println(payload);
7 T- \. L1 P% G3 k4 |1 l - Serial.print("\r\n");5 D. _4 \9 U, W% l N" a% h/ S
- return payload;
* ?$ k, f! s7 w i9 M+ u, a6 G1 C2 f - }
! A E$ b, b: ?7 B9 e2 s - } else {
' K Q7 _, f8 {; X; Q - Serial.printf("[HTTP] GET... failed, error: %s\n",
2 |- g6 {$ x# u% e$ F - http.errorToString(httpCode).c_str());
; f' B" \/ h3 O8 q/ p3 J - }( @7 G8 H* P5 H% d1 A' n# \
- http.end();/ b9 p. d; s; |8 t
- return "";1 c" f5 }* I# {
- }
; m6 u8 d- \# X$ N( G& q# n4 s% ] - }* Y* J2 @7 K/ f. J0 P. V$ J% }
- void mainAction() {' ? @% D/ f" |9 h9 V& `1 ^# l1 L
- // 发送请求
5 T1 M$ \* F! q. w* J, z - doGet("http://google.cn");
! W9 ^- Q! L) \6 U/ j - }* m+ o7 g6 p6 g8 C4 P5 ~" N( f
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