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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)
" d4 \ Y5 ^, d- #include <ESP8266HTTPClient.h>
& ?: R. U4 _9 N6 I4 r0 U. a - #include <ESP8266WiFi.h>! b! A2 `4 x/ `2 ?, I. }
- #include <ESP8266WiFiMulti.h>- d" t; L. z- R) B& @( C% N. P
- #include <ESP8266WebServer.h>
: S( r# C3 p* y, d, [# {8 [6 o' c - #include <arduino.h>1 {. E' c. h9 P* x2 B
- ESP8266WiFiMulti WiFiMulti;" i: f v7 B+ ?2 Y
- ESP8266WebServer server(80);
* z" s5 Y3 Z. T8 y - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";: _) V' ~) R* }8 m
- ADC_MODE(ADC_VCC);8 Z3 z5 q, \1 X8 P+ o
- void setup() {
2 a" p8 Y9 m! }* ~6 f$ \# p - Serial.begin(115200);6 b- V, |% ]1 B1 z5 p$ I% M8 y$ e
- Serial.print("\r\n\n");1 ~, Z) s/ l& Z, o& J: I! `
- pinMode(2,OUTPUT);; l3 ]! H$ P$ r# y9 ^0 H
- // WIFI3 y9 y+ C# K7 G2 l8 J
- WiFi.mode(WIFI_STA);) W& }, |& _7 i& W3 @" `8 L
- WiFi.hostname("Sparkle");! V1 z. ~- F9 w! m3 l
- WiFiMulti.addAP("wifi ssid", "wifi password");1 Y5 \. N) W v6 _, k3 e7 R
- int tryNum = 15;
4 M- Z7 J, s/ Q1 ]$ v8 `% u! | - Serial.print("Connect WiFi");
+ X/ N8 K/ G- n) }# _* X7 z - while (WiFiMulti.run() != WL_CONNECTED) {
, M% _) U+ E; v" Q: F - digitalWrite(2,0);
9 w6 K4 O& q, Z0 D" R4 n - delay(200);
" b, e. y L4 i! i, Y+ l9 u8 j - digitalWrite(2,1);
' r" d7 X& s/ T- C - delay(300);
, u8 \! a! j/ r) _$ R - Serial.print(".");
6 ^7 F q$ _# b: d) ] - tryNum--;* c# K G C) ?7 C+ x3 q
- if (tryNum == 0) {
& W' `8 y s- v - // 1min
2 t- a# u7 I% d - // ESP.deepSleep(60e6);: `( ^" a0 |' I0 Q" K% ^: [% ]
- ESP.deepSleep(0);% ?/ P6 b8 {7 e+ Y0 G& a
- }
- \& C: U4 M/ R) w - }6 |6 x" W& Y2 S. u- Q+ y
- Serial.print("\r\n");
* b" }' a6 U' l+ F5 F! o - digitalWrite(2,1);
" ]4 M2 Y! j. }0 M. z: L! u3 v - Serial.print("IP address : ");
8 B+ T+ Q# x N: v - Serial.println(WiFi.localIP());
^7 N& b v$ O3 i1 x2 F( Y% L" J - server.on("/", HTTP_GET, [](){
( ]( {1 R* A2 S$ c - server.sendHeader("Connection", "close");
7 c# t9 y/ u P0 L$ P - server.send(200, "text/html", serverIndex);
; c# t c; M; e* M# M" k: j6 Q' V - });) P. h1 K9 {& F7 b( u4 @ L9 W
- server.on("/update", HTTP_POST, [](){4 L7 h6 c2 H4 ~
- server.sendHeader("Connection", "close");
( d5 ~9 p% L. x+ D - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");! t# n+ { p- n! k5 l) q: c
- ESP.restart();4 b, r N; \/ t. o _
- },[](){
' ~- P4 j$ i9 D* G2 R: z4 o* o - HTTPUpload& upload = server.upload();
% c; {% P8 e# `" @ - if(upload.status == UPLOAD_FILE_START){) H/ x' u$ ]1 z3 C
- Serial.setDebugOutput(true);* K8 m! Q x y
- Serial.printf("Update: %s\n", upload.filename.c_str());/ v1 }: U7 H5 N" ^4 |3 x* j
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
' s, h3 z3 S; Y0 d, J - if(!Update.begin(maxSketchSpace)){3 N! H( s$ I% E" L2 B/ H
- Update.printError(Serial);7 C) D0 l/ { Y! Q
- }5 w! L C6 e) x. D3 T7 a" Y' y4 n
- } else if(upload.status == UPLOAD_FILE_WRITE){
6 O ]5 ?8 ?; W7 Q& N; ?$ }+ P1 | - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){2 u* I+ K" I2 L
- Update.printError(Serial);
# x& z- |: R* o u - }. V K/ n/ ~7 e% o! M
- } else if(upload.status == UPLOAD_FILE_END){
& t) x5 [( V; ^- G( Q - if(Update.end(true)){
. t j. k* Y* l3 l9 x# J - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);6 s# [5 Z5 U& s( u* B
- } else {
0 X( n" k* [# R: x1 b - Update.printError(Serial);+ N! w2 I. @' a4 T+ j5 E
- } t$ a0 r6 ]* Q. O
- Serial.setDebugOutput(false);+ Y9 Y' D8 G# M8 c5 `1 H k
- }% I8 N6 {& W- l3 c. B2 }
- yield();
* H2 _* q, }+ S F7 H; r - });
! y" q: O7 M9 O1 F! b2 R, R -
, F" @( r; P- j% I( K# }+ g - digitalWrite(2,0);/ t2 {+ T2 ~" Q+ v9 J
- mainAction();
m6 {2 P0 b( {2 v1 U) \8 ?" d( c - if (digitalRead(0)){
9 N5 y( r6 s3 n6 E2 T! `8 h - ESP.deepSleep(0);" ]! y# D/ M H$ }( x7 K9 }3 w
- } else {
$ }# H `! L2 }+ c - server.begin();. a' N. a9 C$ R1 m* K
- }
$ U$ j; V0 V; k' E4 Q - }/ F$ j8 X1 h: N U" p
- void loop() {9 h# L9 D! C9 b) S
- server.handleClient();
F2 b4 o2 P/ r7 h. j" p; J - delay(1);+ z+ b; t$ `( m# r
- }( e+ d1 [3 x" q# i0 {" `
- String doGet(String url){$ d% I. Y4 K7 f4 E* |' L! Y# A
- if ((WiFiMulti.run() == WL_CONNECTED)) {8 _ H4 ^2 Y% p: y
- HTTPClient http;
( j P8 v4 h' q" ]* _ - Serial.println("[HTTP] begin...");' }% C# M. e) w" h
- if (url.startsWith("https")) {
9 N7 \1 M* R' A - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
: Y& j* `6 I# K0 f. X b - } else {
' }9 q1 j9 M" B! X) n1 k8 U* s - http.begin(url);8 }3 ~6 k" ~' `4 P) O
- }! p( }2 H% g8 T* [9 u7 l
- Serial.println("[HTTP] GET...");4 E$ N- A2 t2 G
- int httpCode = http.GET(); G8 C9 I& X Q
- if (httpCode > 0) {" z* M( \9 X, D8 ^
- Serial.printf("[HTTP] code: %d\n", httpCode);# x8 h$ F v8 T
- if (httpCode == HTTP_CODE_OK) {( H1 D; i. W9 u. Y5 P2 p6 T6 F
- String payload = http.getString();
, `% N L v/ z- C1 r2 t" U& o0 K) L - Serial.println(payload);& `; s$ V! s; m
- Serial.print("\r\n");5 A$ D# E9 f" u: R5 M6 i
- return payload;
, b4 r7 Z: ^ a1 t# b - }0 f9 W/ n. ?7 |5 k
- } else {& X0 {8 F/ m; c6 p$ z( Q2 z
- Serial.printf("[HTTP] GET... failed, error: %s\n",: o" M! Y; C2 `3 r" Q, q
- http.errorToString(httpCode).c_str());
) `2 z P# C9 l& g4 P/ x* k - }
t; S" J6 b3 c - http.end();
$ h/ z* r2 a4 F" C$ ~: G - return "";/ D2 T/ k, m; k' P# z6 W9 ?+ S
- }
+ O' w4 x8 ?0 B8 P1 x5 z' B$ B - }7 i4 J0 V6 |( e! m6 N: G" I
- void mainAction() {
% k: Q5 v7 B# X9 N- D$ N# X - // 发送请求8 f. C: ]/ @' v9 q; z2 |
- doGet("http://google.cn");* b$ K( _4 b( H
- }
: H8 h- @) J+ A2 ]9 k2 q
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