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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)
6 r+ F! s8 }! Y t- #include <ESP8266HTTPClient.h>
8 l) k8 s& P& x }7 O9 j - #include <ESP8266WiFi.h>$ @+ Q/ q" t/ f0 e1 ^2 |
- #include <ESP8266WiFiMulti.h>
) N- f: n. J4 j - #include <ESP8266WebServer.h>
) `8 o. Y! s6 I3 I' b - #include <arduino.h>
' J+ t8 u6 b8 U2 s - ESP8266WiFiMulti WiFiMulti;
: K: p' k+ l) ^) e0 |( U' ^! c' A* \ - ESP8266WebServer server(80);
4 S! ]+ P) T& g4 C1 F - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
" ~, p/ O/ e: d) e8 Z - ADC_MODE(ADC_VCC);
% ]. P2 x x# K2 ]' \ - void setup() {# @# K0 A7 N) B: ^$ E' h4 [. g
- Serial.begin(115200);
& T/ `% e9 } h+ | - Serial.print("\r\n\n");
, v( N; X( g* N8 h( k - pinMode(2,OUTPUT);( K0 G9 g9 t& K
- // WIFI
. P4 r) K2 {6 S2 m - WiFi.mode(WIFI_STA);* K4 v9 b) W% q7 X) Z/ D) N' K
- WiFi.hostname("Sparkle");6 N g# A3 j9 j0 Y. e2 _! _
- WiFiMulti.addAP("wifi ssid", "wifi password");' S$ J9 K; ?: [- A- H6 T6 n
- int tryNum = 15;
+ _4 L9 ?! S# p$ J - Serial.print("Connect WiFi");3 C# m( Q2 v( @
- while (WiFiMulti.run() != WL_CONNECTED) {
4 A! m/ T9 y% C# F+ I. a3 k& } - digitalWrite(2,0);9 V4 `6 y6 e4 l3 k! G3 M& `, h$ _
- delay(200);
n* T; s6 e1 G8 b: \8 g - digitalWrite(2,1);. D0 q) V% k, V- u$ K- ?! j, g' [7 e: w
- delay(300);
1 R& F# h3 O& u, b1 M - Serial.print(".");( `# h9 G: ?+ I5 M# ]& R
- tryNum--;
, s) C/ G i, w4 o - if (tryNum == 0) {
4 M$ V4 g5 [" \4 Q5 o6 r. V - // 1min
5 B0 M8 A/ h4 G3 z( S4 K" c - // ESP.deepSleep(60e6);# t% X" s! L' x6 n: q
- ESP.deepSleep(0);1 Y7 z o: P& [# ?8 a/ U
- }
% ?* A x" Y% p8 H% e - }
2 M. a% t: u0 y; C - Serial.print("\r\n");
t, E+ T. Y% R, W0 l - digitalWrite(2,1);
, `2 m. l# V/ O* w - Serial.print("IP address : ");- j: U. F6 Y# S+ H& j
- Serial.println(WiFi.localIP()); ~3 Y0 Y; H9 F4 }" I5 i7 Y
- server.on("/", HTTP_GET, [](){
: u H* `. F% U1 r - server.sendHeader("Connection", "close");
% d- [. p2 X. t( e" M6 b+ V - server.send(200, "text/html", serverIndex);
4 A. Y. z) S/ R - });2 O2 \' |9 u7 K8 n* N, A" ?
- server.on("/update", HTTP_POST, [](){
+ W' L9 x8 c; c - server.sendHeader("Connection", "close");
5 ? }/ q% w$ V+ h5 |8 ]' u- c- U3 H - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
+ @7 |* s$ y! V5 J4 { - ESP.restart();
' P& E) {8 U2 Z9 V( W - },[](){
; f# Y6 r+ }/ F/ g- d8 F - HTTPUpload& upload = server.upload();
7 O% _* ^5 e: s9 {) q0 M: z - if(upload.status == UPLOAD_FILE_START){
+ H p6 w% M8 v6 y: l2 o5 V - Serial.setDebugOutput(true);7 u! S, T( s0 _7 e
- Serial.printf("Update: %s\n", upload.filename.c_str());9 ~% k" n+ f! S# {0 ^9 `
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
6 F; _1 \ [' A) T - if(!Update.begin(maxSketchSpace)){" \- A0 X2 q8 \1 v, R
- Update.printError(Serial);
& _7 y# x: V8 [, M7 | - }: Y# x) Y- w: k: U: m% h
- } else if(upload.status == UPLOAD_FILE_WRITE){6 E. E) V+ }5 q2 h6 e
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
4 o. ?0 X6 a9 l% Y - Update.printError(Serial);
; X k/ z8 ~0 W% l! k! E6 r - }; y+ c) n5 v. y y: R( B
- } else if(upload.status == UPLOAD_FILE_END){! y# \" a! ? S" Z N$ B4 W6 R% [
- if(Update.end(true)){2 K9 q5 T, ]4 N9 {* E- F: O( ]
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
$ K- w: S2 P" q7 _1 U - } else {6 F% |9 T. I* n. f- A8 }
- Update.printError(Serial);
6 O# F8 Z; M! T8 c - }
/ q: S% E; r4 r - Serial.setDebugOutput(false);5 E2 `: a, X4 s% a# i, E0 O
- }
0 k) D: ?' q4 u! r; \ - yield();
4 {$ a I6 _5 A2 s# i - });+ F6 z0 X1 `- T" x! f
-
2 h* B8 v* E& T9 o) g - digitalWrite(2,0);
+ j, `) V# v, |" V( R6 B; ? - mainAction();
5 [" a; q/ A* L$ j - if (digitalRead(0)){
) t+ h" d% ^; o$ u3 s1 l - ESP.deepSleep(0);. f) M9 H! N( v$ c
- } else {
) j/ Z( K) I/ M0 H( t/ i) i - server.begin();
6 G U Y) J% q8 g) y6 Q/ U C - }
/ @( J2 F6 A& O; g- E% l( j. N, w - }
' w3 d7 M/ \& S3 U- X; B: v2 N. t - void loop() {0 V8 q2 Q4 N& F4 H1 d+ m
- server.handleClient();; A1 A% t: B. F
- delay(1);1 v' g3 E1 c& ^' l$ i2 Q" W
- }
d( \5 P* J; B6 L E" T2 P - String doGet(String url){
. a9 {1 z" B8 v) D - if ((WiFiMulti.run() == WL_CONNECTED)) {# X9 m2 e. m) Q, U2 a# n
- HTTPClient http;. P4 h2 Y1 U$ e/ j2 a% |6 `0 ]
- Serial.println("[HTTP] begin...");7 A2 x p$ P5 U& e/ [
- if (url.startsWith("https")) {& r7 C, a) x, k# ?& k
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");) n0 ~% n9 R9 j! v" e; Y9 w, l
- } else {
+ k" ^6 K4 M, O5 k - http.begin(url);4 m, j3 m1 ^2 c9 j- c
- }
* M6 p. \0 E3 e; M( y$ g - Serial.println("[HTTP] GET...");* g* l5 m5 k; M" L U
- int httpCode = http.GET();
. `. G+ ?6 z8 _8 z# D* v - if (httpCode > 0) {: b8 F% l" I. x" k8 E. p
- Serial.printf("[HTTP] code: %d\n", httpCode);' A; ^9 b g6 Q1 N
- if (httpCode == HTTP_CODE_OK) {
- g3 m: O# q( g) [9 [ - String payload = http.getString();+ D1 H( B/ \: G0 p8 p" H
- Serial.println(payload);0 k, f& w+ @; E; {, `" m6 d
- Serial.print("\r\n");9 X( S Y% a# y8 c: ^" y
- return payload;
* R2 W1 s0 P1 N4 u6 ] q' t; Y - }
6 i' t. }. J( }+ ~) t - } else {
( T, H) \9 L3 Y+ T% m I - Serial.printf("[HTTP] GET... failed, error: %s\n",5 w5 ?! J! _# M8 O& o
- http.errorToString(httpCode).c_str());
' i# [' P5 o. q - }
a- ~# t. D! ?9 }4 n$ {! `; x - http.end();
( q' R# u" U& q8 z. b* l - return "";9 J' Q% Y! B% C6 D4 J2 w6 a
- }
& P7 Q% W9 D8 R+ Y$ P0 r% C - }
1 m9 k9 c& @2 K$ E - void mainAction() {
' Y; _- F7 U) U5 e7 z - // 发送请求
]% x* Z F" P: X% k/ ~, I! u - doGet("http://google.cn");
% c+ x; M: h. g$ N0 H( y - }
9 J3 M% F' I9 T8 G6 o* c- h5 N/ {
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