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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) v; r0 P. j; B& ~- k P
- #include <ESP8266HTTPClient.h>
" @4 \: [( U9 X/ k7 o - #include <ESP8266WiFi.h>
6 \# Y2 i/ [0 A( b1 g( l - #include <ESP8266WiFiMulti.h>$ N, y, T2 P, t
- #include <ESP8266WebServer.h># n3 f, Y( d' ]: }8 s0 s
- #include <arduino.h>
0 o/ p1 t9 H) }! G - ESP8266WiFiMulti WiFiMulti;
' }0 ?% j/ Q+ i5 q! Z - ESP8266WebServer server(80);. s# `# p0 j; X* o1 v2 N& n/ U
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
4 m2 K1 l* U0 w - ADC_MODE(ADC_VCC);' Y# I2 |2 z, d8 K6 I
- void setup() {
. u8 N/ Y r `* R - Serial.begin(115200);
4 U3 x5 U Y8 A4 I6 c - Serial.print("\r\n\n");& m0 }$ J7 y- x4 r8 ?" ~
- pinMode(2,OUTPUT);9 t* A% M! R: T. v% u
- // WIFI, ~' \. y; |$ [$ E* e
- WiFi.mode(WIFI_STA);
( ?' q0 {' E7 |- \ - WiFi.hostname("Sparkle");
; r$ T6 j; }+ R! p8 [ - WiFiMulti.addAP("wifi ssid", "wifi password");
8 E4 C8 l$ s; q/ E7 X* C A' g- ^ - int tryNum = 15;
2 {4 c# l7 K8 ^; A( D - Serial.print("Connect WiFi");
. M% X+ G; i7 T: T* V - while (WiFiMulti.run() != WL_CONNECTED) {
3 a' X5 v) ]" y - digitalWrite(2,0);6 Q* G- k5 f: n
- delay(200);
/ R$ P( W5 J5 E# h, y) ~# P - digitalWrite(2,1);
8 {, o/ v; X" n4 B9 X. c s - delay(300);
! S- H7 R4 g4 G+ U3 @- e - Serial.print(".");
: t5 S" E4 I- X' f# s9 O% E; R8 W - tryNum--;& A2 H& q3 E' S9 Q/ y2 d- J
- if (tryNum == 0) {7 f5 ?: \! V, N: `$ j; t
- // 1min
* ~: ^2 W9 J" h7 E9 a0 S* M - // ESP.deepSleep(60e6);
' r2 q5 @1 w9 [8 M1 Z - ESP.deepSleep(0);
$ Q* ]7 H) }: L( B( V) x - }% A" K' F1 s: Y$ _# l) B+ B
- }+ y: L$ y# w0 C' b5 v/ x
- Serial.print("\r\n");
) F2 i0 L: h/ H! s. q - digitalWrite(2,1);' _1 V/ W. H) O9 w
- Serial.print("IP address : ");/ Z0 L4 y/ ?" K/ t7 w; @, x
- Serial.println(WiFi.localIP());
# t- }# L- x' H$ y2 y2 t; d8 i/ L - server.on("/", HTTP_GET, [](){# P8 K6 i, R$ z; i \5 L
- server.sendHeader("Connection", "close");
4 E c' B" o, d; H7 { - server.send(200, "text/html", serverIndex);9 c) n* `- P0 p% U/ b
- });" L, E( ^. W# t# M- m
- server.on("/update", HTTP_POST, [](){
3 a7 x* Z& K$ P2 p$ o0 H - server.sendHeader("Connection", "close");: D4 ?( D* v0 z& {* v! H3 b7 ~
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");, L x0 k8 j7 y; }. c7 {
- ESP.restart();2 J8 T; L' A9 c3 @- Z, s) C# p
- },[](){
" f2 t6 R: T, I. B; T% k - HTTPUpload& upload = server.upload();
( c5 W& b" b, V: i! ^ - if(upload.status == UPLOAD_FILE_START){: B2 _, a9 P. O) B8 V& Z
- Serial.setDebugOutput(true);
! e- ]) N4 F! ]% ~+ U/ K - Serial.printf("Update: %s\n", upload.filename.c_str());
- j) c( ^) ^& k; h6 v - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
* W# I* I7 I5 G/ j* M! A$ Q - if(!Update.begin(maxSketchSpace)){
b2 L4 v6 _( I/ M) i/ D - Update.printError(Serial);
1 a. I9 I, z d& {1 @ - }/ F2 z: o4 `5 k( u& T" x
- } else if(upload.status == UPLOAD_FILE_WRITE){3 `9 a8 j- f$ ?0 w
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
8 N2 Y" o4 l' E: f0 A' @, v& k2 s$ _ - Update.printError(Serial);
( ^# s8 | {+ R% i2 c2 p! v" ` - }6 h) I6 g" p8 Q2 A" o
- } else if(upload.status == UPLOAD_FILE_END){
4 ]7 n" V0 c) B/ Q - if(Update.end(true)){
, a( l+ }$ _ X( n - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);/ X, \7 {( `) z1 Z* B
- } else {
. j' b% \( S$ t; C6 X - Update.printError(Serial);* q ~( y, d- H
- }
, Z& ~8 m% |% p - Serial.setDebugOutput(false);
3 d) @ A6 p& K7 C1 N3 I - }
+ r! H! P) m0 T; i3 [. d1 P# K - yield();
3 O( a: `' J. {/ d: v - });
6 b. O& j! x, O% I+ ]( O -
/ k6 Q( w" q0 }2 N, d) { - digitalWrite(2,0);# F( k: g! t: {/ O4 z( X
- mainAction();$ F2 @+ e8 w' t |8 V% l
- if (digitalRead(0)){
{: S, y1 }# @" @7 W% ] - ESP.deepSleep(0);# _& I$ Y' W) ]9 V3 s! F
- } else {$ ]! _# d/ y5 V7 Q0 E
- server.begin();
7 G2 e6 s& g" g6 v. d; G - }
! [: K) G) z Z( N - }5 L# U5 ~6 n' x9 Q, D- u' ]2 Y) i5 M
- void loop() {
8 t4 U r0 \- D' d+ } - server.handleClient();
9 e2 K$ D- ^4 j8 B - delay(1);
. h6 J6 v6 _4 p/ @4 j x* Q - }# p* n, y+ O9 A2 x( \
- String doGet(String url){
8 q3 `5 Y$ G$ W) C6 O6 O$ G& [! D - if ((WiFiMulti.run() == WL_CONNECTED)) {# P$ A. U! c+ u& p
- HTTPClient http;% @" @0 p7 \4 X/ S; F. G8 C$ }: V3 U7 l
- Serial.println("[HTTP] begin...");3 w' Y" I% Z x
- if (url.startsWith("https")) {5 ^( W; Z' Y& N5 O. m$ @4 K
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");; q* O# A6 f, c: H
- } else {# \0 M4 u5 q7 J5 Q2 C5 o. W7 R, ^
- http.begin(url);$ @4 @3 e' h( ~1 [: I. p* U
- }
, h6 O" S* p5 z$ W* d. {; ` - Serial.println("[HTTP] GET...");* I6 n5 h9 i' M
- int httpCode = http.GET();7 f& ?, w7 ~0 ~, ]* A9 a
- if (httpCode > 0) {
z, I) `$ W! M; f - Serial.printf("[HTTP] code: %d\n", httpCode);7 A9 l( Y4 L# g1 ~$ s
- if (httpCode == HTTP_CODE_OK) {
: o! X" }7 k( O - String payload = http.getString();
. a/ y) a1 M; A( [% |: Z - Serial.println(payload);
! N) s P6 Y8 y - Serial.print("\r\n");
1 \) @8 b! [; ?" H - return payload;
6 D" k. g/ J" |' J - }
7 ~8 ?- y- A$ j! c, S( H D - } else {
% H. w( E# t4 j3 r- ^ - Serial.printf("[HTTP] GET... failed, error: %s\n",: _6 Z" T! T, `2 G( p7 V
- http.errorToString(httpCode).c_str());0 ?, N7 l( r3 X, l! l, S
- }2 A& L) h0 ]( G: B% W( b8 {# z
- http.end();7 o6 K+ D8 u* ~8 r
- return ""; @0 g; i5 @9 [9 r7 G6 ^9 x1 T1 o/ r
- }
. H1 }/ O0 z/ L7 K$ j) Y - }
( ?1 E7 j9 h0 @6 I2 j+ y3 ^- ~) e - void mainAction() {
% L4 j" v* y" Q" T( F - // 发送请求
! P4 h' }& `' Y/ A - doGet("http://google.cn");
b. R# g: w6 c7 U! ^ - }0 E3 K# W! y+ B/ ^2 F5 k- e7 C
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