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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)" p0 t6 }9 O8 U4 X
- #include <ESP8266HTTPClient.h>
/ V) m( K+ h, w1 J& u - #include <ESP8266WiFi.h>8 t# ~4 g, E" _/ B
- #include <ESP8266WiFiMulti.h>
+ q4 j% E. j9 ]7 M3 Z& C" { ? - #include <ESP8266WebServer.h>
# Q/ A4 G+ B" \, s. U - #include <arduino.h>, d8 b5 W7 T- ?4 `0 K7 x
- ESP8266WiFiMulti WiFiMulti;8 z( A$ w! F) H
- ESP8266WebServer server(80);
# {% w4 y8 B/ c* P2 F: _) o - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
+ [& F: j* o% K$ m$ k; B - ADC_MODE(ADC_VCC);
+ b5 [4 ^1 j, c6 g% q5 Z% ^ - void setup() {. n% h. f& o5 {$ U$ \9 X' E. s
- Serial.begin(115200);
- G/ X, i$ N3 Y0 n( f6 ] v - Serial.print("\r\n\n");0 a4 k0 |5 X1 \8 v% _
- pinMode(2,OUTPUT);6 R/ a% m4 ~) r# m- t
- // WIFI3 y; w- ]% N1 {% L5 y
- WiFi.mode(WIFI_STA);# D; ]! i. `& q! p2 l
- WiFi.hostname("Sparkle");+ d7 W! C( ]0 j* h& F! E7 H$ T& Q
- WiFiMulti.addAP("wifi ssid", "wifi password");3 |* ^( m3 {! d
- int tryNum = 15;
5 D' t5 p& ?' p) L* J, j - Serial.print("Connect WiFi");
2 O A, C' ~1 d8 ^ - while (WiFiMulti.run() != WL_CONNECTED) {
$ ^, n$ {3 |0 h. [% s( e" Y - digitalWrite(2,0);& \; H7 Y. O9 g
- delay(200);# @3 h; u1 s9 h8 p9 j0 \
- digitalWrite(2,1);8 I; E6 D: U+ U- Y- [
- delay(300);
6 b, I" D" ~4 z( t - Serial.print(".");
0 o, t6 M" R( o7 O - tryNum--;
% L* G' T9 c' T - if (tryNum == 0) {) N6 G( B1 V! V5 ~/ @, ]
- // 1min
P0 w. w5 D- k" U9 A - // ESP.deepSleep(60e6);* R1 L. G; |6 u/ p# r6 Z
- ESP.deepSleep(0);, N& h0 {" o6 V0 m
- }
! d b7 n% M f+ {8 s; F/ C" x% W - }$ }9 h8 E0 L# }' f; m+ \/ Z
- Serial.print("\r\n");2 A7 h+ T/ A1 P; T+ u
- digitalWrite(2,1);
& [' a# c9 l& [9 w - Serial.print("IP address : ");
7 @% C) R5 R! I$ ^: G v0 Y4 b - Serial.println(WiFi.localIP());( p* i0 q; f" k
- server.on("/", HTTP_GET, [](){7 q2 X+ P+ j2 R1 p& v; J* N
- server.sendHeader("Connection", "close");
0 y" b: P+ q; z - server.send(200, "text/html", serverIndex);$ C+ D! E& V' @4 N) B) ]
- });0 O3 |7 k4 N. ~! `" M7 v
- server.on("/update", HTTP_POST, [](){
+ x: ?2 }6 `3 y T - server.sendHeader("Connection", "close");8 _; C* A+ G5 V, ?9 r! ~/ R
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
- ]: ~- L- T, H5 c$ p* X9 u - ESP.restart();
# a. d/ k6 M/ \2 I* u2 z - },[](){) m! I C$ Y: |: H5 ~
- HTTPUpload& upload = server.upload();
, w" p8 R; w& h/ A+ b - if(upload.status == UPLOAD_FILE_START){3 `+ t( n- R8 P: y( ^' P4 @! I
- Serial.setDebugOutput(true);
& M+ r8 ^7 K6 K - Serial.printf("Update: %s\n", upload.filename.c_str());' g. }6 P+ y; }0 ^
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
- {' j5 |$ b4 g C# U - if(!Update.begin(maxSketchSpace)){2 k1 n' P' h7 i2 R2 T& ?6 H
- Update.printError(Serial); h1 e T( N! c3 n ^
- }$ D- |: p6 q& `' `3 y& l
- } else if(upload.status == UPLOAD_FILE_WRITE){
7 ^6 }' s3 N' @& R: i4 J1 J - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
% S1 B( `9 u# x- M+ Y( W- \( y - Update.printError(Serial);* z f% w3 I& y) M
- }* ]4 D1 i, @3 c! s, ?; U& B
- } else if(upload.status == UPLOAD_FILE_END){! x( \1 o/ U) y! u* q) u
- if(Update.end(true)){
- n+ T# |0 e$ \. I# A - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
& b( B$ L: f0 l# a - } else {) \5 G* S# U* ?7 J/ o- _ t& J
- Update.printError(Serial);
4 @$ v ]/ R3 Y- Q7 Q4 b - }
! c2 ^ d/ ~9 e7 m - Serial.setDebugOutput(false);
6 r- w j; A$ m+ z- N. c - }& N2 K V% T/ h6 H
- yield();8 B4 t" K" g& E& J/ e: H( h
- });
* h0 p' {3 V( z3 {: K -
( ^* `* Q" u& y) s. k+ U - digitalWrite(2,0); T- o! p* x# A9 ~$ t: n" c# p
- mainAction();: j+ G* n! N' j [$ H
- if (digitalRead(0)){
; l/ h ~5 G% q2 L& H, `4 @3 J+ `6 z - ESP.deepSleep(0);$ m6 b1 B8 y2 ]) l$ U. a* z+ Q1 Y
- } else {$ k5 d- n# K2 u( \3 T
- server.begin();5 g' B) S- z1 R, K# P- X3 }$ |
- }! {( b5 k; N$ {" Z; X& A
- }
- [' ^* _6 |9 ^* \; A1 O - void loop() {
: D, y: f6 S% m6 @; ?. Z% I - server.handleClient();2 }0 V/ J) B8 ^$ M/ ~3 Z$ ?
- delay(1);
* T' B( o6 }5 v/ R - }
$ {0 X5 Y s% ~9 u - String doGet(String url){2 f% Z( t3 |9 D- C) r1 R
- if ((WiFiMulti.run() == WL_CONNECTED)) {
4 o. P) o( ^+ S l/ v: t3 z* W( s; s - HTTPClient http;2 {- J: |- r, u0 I# R' o
- Serial.println("[HTTP] begin...");
0 U% ]; [6 H' }+ Q& g/ B! G& K X% F - if (url.startsWith("https")) {' c+ H, L; G. I" I/ @) `, L% T" @
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
; V" @6 t. }$ i2 i/ Z4 B - } else { R- b$ R, Q0 h
- http.begin(url);
w9 M: t. P E+ U8 W - }
4 r* g6 r: ?/ \1 E3 Z* H7 D - Serial.println("[HTTP] GET..."); f/ a' j+ p) e- o# b$ Q
- int httpCode = http.GET();7 o0 D! t; D& P% [$ n4 B
- if (httpCode > 0) {4 a H: J' `" U. g' K" a
- Serial.printf("[HTTP] code: %d\n", httpCode);: Y5 N, g9 _# ?$ ^0 a) K
- if (httpCode == HTTP_CODE_OK) {
) T) ]0 [7 p l2 O0 u - String payload = http.getString();: ~' C6 Q! n% u* y0 F# `
- Serial.println(payload);1 r% T& H# _: h% s6 n( k! ~
- Serial.print("\r\n");. x. [5 Y3 E% I# g5 o% [! w
- return payload;: [9 D3 L$ ?- x
- }0 C3 s2 N0 v& K
- } else {
. G' I1 o% c( k! q8 ^# N - Serial.printf("[HTTP] GET... failed, error: %s\n",
) _- O L* o( H% i" {5 c - http.errorToString(httpCode).c_str());
7 J* } b9 Y* o - }$ N- H* U2 i+ Y" w( u ?$ ]% N3 d$ s
- http.end();+ B8 t2 G7 ^8 \8 a
- return "";/ l4 h( w5 D( }- T
- }
/ e4 {- L0 l; `9 r& ` - }
4 v0 @, w/ x3 } - void mainAction() {5 R4 d7 {+ P3 B6 e
- // 发送请求$ X. I5 [- u) |' o
- doGet("http://google.cn");: E" M4 ?7 ~+ _% m
- }
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