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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)* |) I) B0 n/ ]8 v
- #include <ESP8266HTTPClient.h>
0 Z; J9 E# ]8 Y( o - #include <ESP8266WiFi.h>1 Y5 ^: C) ?' C
- #include <ESP8266WiFiMulti.h>
0 x# P# K# U! p8 u( A5 z5 Y - #include <ESP8266WebServer.h>8 X$ n5 ^( ], h& o Z
- #include <arduino.h>" q) q! _) a9 ?4 k+ Y4 K
- ESP8266WiFiMulti WiFiMulti;
' G z O% h( g8 L, U! v* j - ESP8266WebServer server(80);
! ?, Y; p: Z; A9 p- C - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";6 h5 I* S% u- u+ I9 T
- ADC_MODE(ADC_VCC);
6 j! U1 s5 w/ F1 |1 l1 ? - void setup() {
: s* v3 e! ?- b* l - Serial.begin(115200);0 [ @# z5 b0 a9 M1 k, p8 R
- Serial.print("\r\n\n");
9 k# \3 v1 W, [3 n - pinMode(2,OUTPUT);
t" }& g5 }4 X, _, k1 E2 c - // WIFI/ U( @5 b5 w5 n, L6 ~
- WiFi.mode(WIFI_STA);1 v1 N0 Y( ~" f Q i& |
- WiFi.hostname("Sparkle");' ^- j8 R3 }4 t: D, J0 b
- WiFiMulti.addAP("wifi ssid", "wifi password");
6 P) m# H* a1 o" s - int tryNum = 15;8 M+ S- U, v( H7 U4 o
- Serial.print("Connect WiFi");6 D/ |- p, D! j' q3 O. ?
- while (WiFiMulti.run() != WL_CONNECTED) {) x2 R0 j- i1 S1 g( K! T5 @
- digitalWrite(2,0);
4 s( [& N* G% v) ^ - delay(200);$ B3 R+ X3 u' H6 l& E
- digitalWrite(2,1);; b9 ^& \* f: K: B5 r1 q& i8 m
- delay(300);7 i. T8 i: e- T% Q$ s6 M
- Serial.print(".");
: {" V! [( Z/ s% e6 [, L - tryNum--;
1 v: K: f- e. p, \ - if (tryNum == 0) {" P c3 s: U, m
- // 1min- S- W' S( F, d7 S
- // ESP.deepSleep(60e6);
, ~+ ?: M5 A, f; B - ESP.deepSleep(0);
/ r |9 N4 h$ b y9 B* l: Z) | - }
. H2 ^3 w* @0 S) r& g - }
" E# |( V/ a# p# K- v% k - Serial.print("\r\n");% o6 ?2 c/ Y# a5 t8 q( z1 @
- digitalWrite(2,1); ?0 ~, T/ R1 t2 j
- Serial.print("IP address : ");- F4 z# W& [; e& i6 v9 W: y$ D
- Serial.println(WiFi.localIP());6 ~. S4 }1 u# k _0 l& S4 v
- server.on("/", HTTP_GET, [](){: A: w7 I N5 B- d; T# p
- server.sendHeader("Connection", "close");
5 w, X; f7 b1 _$ ? - server.send(200, "text/html", serverIndex);
6 P% `: ~1 ]9 z7 X/ j) k/ q - });- r. q& _6 D& q
- server.on("/update", HTTP_POST, [](){
( u$ ~ l, s$ Z& s$ o) W - server.sendHeader("Connection", "close");
2 R, G2 c+ m* N - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
) ?; O5 b. @' ~; w - ESP.restart();
' c+ a/ O! F. [1 Z2 V) A; n - },[](){
1 o0 R8 q5 @4 E - HTTPUpload& upload = server.upload();+ Q4 x1 W! G1 j( r2 y1 f
- if(upload.status == UPLOAD_FILE_START){% Y1 R+ |/ J; `8 ^# I
- Serial.setDebugOutput(true);
' }% M0 z+ u J: s - Serial.printf("Update: %s\n", upload.filename.c_str());
+ g: S E/ w. O! o- A4 G - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;# n$ w% P/ b W( [
- if(!Update.begin(maxSketchSpace)){# j' ]) b( u9 a% h
- Update.printError(Serial);
l( M @ X$ P* r3 O - }7 ^3 G* L/ z- q$ ~) |+ J8 `
- } else if(upload.status == UPLOAD_FILE_WRITE){
5 B; |, `; H7 ?9 l, ~+ I - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
3 [2 F# w- b& V9 A - Update.printError(Serial);* P* b7 `2 @. L- J3 r* J3 R
- }
a+ G2 O A$ U% H) z& A - } else if(upload.status == UPLOAD_FILE_END){5 ^3 u+ d. Y$ D- ^' ?6 B0 b6 h1 D
- if(Update.end(true)){" f3 T& V0 Z8 R* C5 t" L1 ~
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
7 W+ l; Z7 A$ f - } else {
2 B8 w9 f5 f+ c) [6 x% U - Update.printError(Serial);& \9 W' V, u- W
- }
A4 F* R; c H* L1 O - Serial.setDebugOutput(false);1 c# M/ R+ `6 g, N, X/ J0 g
- }6 c7 r4 R' j# o7 l
- yield();8 ?$ M6 F& J$ W4 y+ o8 G
- });. e4 A0 W% M( {, ^9 P
- * V" B; V7 b! a
- digitalWrite(2,0);' x" C' }- a. s4 O8 H
- mainAction();9 j9 |4 w3 X( a' G# Q! g0 \1 b8 b8 h
- if (digitalRead(0)){
( b9 \ N7 v! V) H8 H+ M0 _ - ESP.deepSleep(0);
' @8 w5 j/ T6 U4 m - } else {/ E/ |* w& k4 e* ~& H! x0 U- W! D
- server.begin();- L: e/ M3 E! u( n/ G
- }. u" H# K8 n% v
- }
- q! [2 T- t; [9 ^4 }2 W* M - void loop() {
+ O+ K& T2 A: ]# q1 _ - server.handleClient();& |% m& V0 x: Q2 s7 ^
- delay(1);, b1 L: R$ ?) k6 }
- }4 y8 R' @9 Z8 b3 A1 _$ ^3 X: Y1 n
- String doGet(String url){
7 W+ G: `4 L& F! C - if ((WiFiMulti.run() == WL_CONNECTED)) {
, O6 l0 j7 u, n# Q6 E - HTTPClient http;
' [6 {3 Z% ~# [/ Z: K& p - Serial.println("[HTTP] begin...");
* v: x2 c! J3 C5 d% X; L" Y. z - if (url.startsWith("https")) {6 Z3 A" F v* u5 p
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");% z4 _ P4 {$ N
- } else {
( k$ `, k5 a6 l/ p+ E4 h- s8 A6 N* G2 S - http.begin(url);
$ K2 }* d, [4 j) ` - }0 I3 p2 m+ R( }
- Serial.println("[HTTP] GET...");0 h( G y0 Y, b7 j+ F6 q
- int httpCode = http.GET();
, z% p0 Z2 U5 \6 `$ b - if (httpCode > 0) {+ `' B9 p6 ^$ y7 H+ l
- Serial.printf("[HTTP] code: %d\n", httpCode);0 H5 a+ O9 r8 r" i. z# U
- if (httpCode == HTTP_CODE_OK) {
( C8 l) d( t+ X7 ^7 l3 f - String payload = http.getString();
. L# w; r/ R( s( o - Serial.println(payload);2 Y* A! f) v- K$ d" }- O
- Serial.print("\r\n");
8 P& g1 a& e$ ^% L2 q* e7 | - return payload;; w9 m0 R: P7 } ?; e* X
- }
2 K# f6 ?5 A- [9 p2 m1 }9 b# P& } - } else {
5 Z5 v9 p/ I1 `1 `! }; e4 k - Serial.printf("[HTTP] GET... failed, error: %s\n",& \* H6 p1 [, {8 S% C c1 V
- http.errorToString(httpCode).c_str());
2 q5 J2 h+ ^; ], L" w - }
* D2 a1 [/ B8 U3 x: t3 @! `- O3 V+ u - http.end();
- Y+ L+ v! ?! u9 M) W' f5 _4 O" ]' H - return "";
" b! w1 D; N. ~ - }
) @! r' g! `9 T# L6 L& h; a - }
& N& i# Z Q5 v$ b, y: \. p. s - void mainAction() {
% m4 q K8 W5 ~ - // 发送请求" ?. W( o# M3 {. X% f& g
- doGet("http://google.cn");
, P% G' M" y' p, U. |' O' K% S - }$ t* O% K+ e- Y }. P
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