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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)
/ l. X, ?6 I+ [, e9 K# J- #include <ESP8266HTTPClient.h>
3 D+ |2 V. d5 ^$ \ - #include <ESP8266WiFi.h>
8 P5 z1 Q2 z C- u% Y, q/ A8 R5 U: y - #include <ESP8266WiFiMulti.h>$ a' ^ L' H/ W3 _
- #include <ESP8266WebServer.h>* O7 w9 L5 H" `8 g9 `( J) G9 p% U0 \
- #include <arduino.h>5 O. `- }5 k) p0 a
- ESP8266WiFiMulti WiFiMulti;& Q. _; X# Z2 u) E* z
- ESP8266WebServer server(80);
3 b( H2 q2 Z; E9 n; B0 Y* L - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";3 J8 N- M7 c/ g7 d
- ADC_MODE(ADC_VCC);
% B! T5 f l# y6 B - void setup() {; o" P9 B- K6 {6 }1 G2 E
- Serial.begin(115200);) \/ x7 i* S0 o
- Serial.print("\r\n\n");
7 z# g; _- R/ U" ^+ K _9 l - pinMode(2,OUTPUT);2 m3 P# U& j) w2 [+ z9 o5 h8 y6 ]7 p
- // WIFI/ m4 f) U5 H% _
- WiFi.mode(WIFI_STA);
0 j8 i6 A, G N# O/ u - WiFi.hostname("Sparkle");
& }, B. x1 |- w [& [% r - WiFiMulti.addAP("wifi ssid", "wifi password");
+ @ H1 }/ H9 Y: S) T" y - int tryNum = 15;
3 b( Z; N/ X3 A/ L0 E1 ? - Serial.print("Connect WiFi");
- ]/ e, ~2 R9 Q8 O, l* `" | - while (WiFiMulti.run() != WL_CONNECTED) {
2 V6 ]/ I+ `+ B9 ~# X - digitalWrite(2,0);5 a( d6 b# J9 H
- delay(200);% `& |) M, _. t/ z5 B
- digitalWrite(2,1);0 _% |; A8 k" F& q2 i
- delay(300);
/ j9 ~$ [" z" |% A6 L+ s - Serial.print(".");
! N& D2 B' a8 h. l - tryNum--;- n. _1 f) n. K: I: g# \) M2 m5 z
- if (tryNum == 0) {& w8 z1 X" C, D
- // 1min
# ]$ ], Y% p' w6 D) Z9 u - // ESP.deepSleep(60e6);
7 r& h/ @" M% \ - ESP.deepSleep(0);
/ O0 r4 q! ]! L) ? - }
' N/ y' N+ R' ?: X - } i. j6 Z2 l! _2 \' j+ t
- Serial.print("\r\n");
8 b1 N+ O& b% Q8 ~+ k* q - digitalWrite(2,1);# s% `. n' p/ [4 c4 }+ F
- Serial.print("IP address : "); [0 ?; s/ y# O+ d; f+ h. x
- Serial.println(WiFi.localIP());2 y" P* w5 O$ K5 g, i
- server.on("/", HTTP_GET, [](){! _9 j8 O% {$ @* W x
- server.sendHeader("Connection", "close");
! J% F5 ], g1 }- z! J+ C! s# Q - server.send(200, "text/html", serverIndex);1 h7 w) N+ k* ?3 y: m
- });+ o' ^( \& Y2 \" ]. `: O. F# C
- server.on("/update", HTTP_POST, [](){" Y' K2 b/ q z" }& P6 U" ~
- server.sendHeader("Connection", "close");/ ~ h$ D/ N/ i7 @; [
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK"); c. B+ h9 }1 q4 G; n
- ESP.restart();% v2 K/ l, D& o' ]6 B
- },[](){
5 @& \: W9 v3 C - HTTPUpload& upload = server.upload();
) p, M' y. S0 o - if(upload.status == UPLOAD_FILE_START){
: O/ _: s- \3 t d - Serial.setDebugOutput(true);
/ k8 F0 ]9 @8 V9 a# n* k - Serial.printf("Update: %s\n", upload.filename.c_str());
4 ?! O2 F2 H' q: P+ Q - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;6 ~' p: _2 p2 k7 O
- if(!Update.begin(maxSketchSpace)){
( ]6 h" G3 S+ K2 N8 U7 L - Update.printError(Serial);
9 t8 j1 w6 v9 ]( z - }1 x0 n7 W4 V; h) U/ x, A
- } else if(upload.status == UPLOAD_FILE_WRITE){
, c! t! O# P6 s - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
( r$ b" d; [/ I R - Update.printError(Serial);4 L% W2 {- f9 Q. O
- }
$ H; o ~" J* ]( g - } else if(upload.status == UPLOAD_FILE_END){
, H$ B% V$ ~2 G8 F3 J9 u0 J - if(Update.end(true)){
( N3 x6 x* E2 q$ }* U1 Z - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
" p8 R/ A- @4 S* t) @( s& [: J B - } else {
* P6 I* L/ s, s) Q r; N* [+ v - Update.printError(Serial);3 w/ Q# @. M9 e# h
- }$ m6 w# M# A8 v2 G" h
- Serial.setDebugOutput(false);
% t: H3 x2 J. R% r( q$ ~! | - }* {. }' s7 L" \# l
- yield();4 h! ^. R8 j: K; v( f. P4 c
- });# U0 @' J; \" K+ S! u( W
- 1 d( b% \8 B5 n; k: h* A* B
- digitalWrite(2,0);; B; P& M$ r4 ~3 M
- mainAction();
; d# `7 P2 r6 C6 B. v" ^0 g1 f. [* S - if (digitalRead(0)){& _. }( O. v9 x5 C0 _: @. F3 U
- ESP.deepSleep(0);: q1 L5 {* C, L5 x3 x F
- } else {1 S; V9 [3 s4 F/ g4 |% f7 P6 H2 U
- server.begin();
7 N& ?5 w2 b8 M+ o - }
, s3 n( N6 [9 r3 D5 n! T) { - }
4 Z& E N# k$ u) D% E - void loop() {
7 O ]( [/ B) i; c( w( C - server.handleClient();
( E7 \$ [& j& v8 ~& M+ q - delay(1);2 s' Q4 g/ u( Z4 F
- }
3 c2 G1 x$ i1 J. |( w' q' R5 U - String doGet(String url){: W/ X" }4 ^1 q0 I( z' H& z
- if ((WiFiMulti.run() == WL_CONNECTED)) {
8 c6 [% U- A" Z' e - HTTPClient http;
/ ^1 \, p9 z& f - Serial.println("[HTTP] begin...");
9 H8 y: ^ v! M8 b9 A/ b2 q - if (url.startsWith("https")) {1 @5 r, A$ D6 N8 U X; }$ x
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");, U' G# T% @5 K2 L
- } else {( Z. D u4 T7 p) o: y' _
- http.begin(url);1 x: i B$ L1 E0 D2 F: I% I
- }2 w1 C9 j: F* O# Z! p) {
- Serial.println("[HTTP] GET...");0 {* H- S# [/ E* E
- int httpCode = http.GET();
+ ~- Q9 x+ z$ U2 H+ H+ A) C/ R, Y - if (httpCode > 0) {
9 l9 F: W" d0 F8 h8 Y# N - Serial.printf("[HTTP] code: %d\n", httpCode);# b; W; E8 j1 w3 d
- if (httpCode == HTTP_CODE_OK) {3 [& @5 `' T4 j5 k* [; v
- String payload = http.getString();. ?( S7 A7 _: s) ~' y z% |( q( a
- Serial.println(payload);3 ~0 Z8 K% i' m/ h6 @7 R
- Serial.print("\r\n");; D+ ` _4 M$ r L. `
- return payload;
3 N% \' W; v$ h+ \/ _' E# U) K - }
& X' I7 g( t7 \$ G' w. r+ A - } else {
4 W% Z. R& h5 k \6 n/ _3 a - Serial.printf("[HTTP] GET... failed, error: %s\n",% ~( C& Y* {, }% C# R. b7 }+ c2 f
- http.errorToString(httpCode).c_str());; h# P4 K/ B+ t9 L: U X
- }
. @8 J$ \2 t! o+ y$ C/ r1 V7 N/ m - http.end();
9 N( a, d$ c# |+ x: j9 p - return "";$ U% k, r/ J% a+ K2 b: s% j- c; ^
- }
' Q# m8 {' j- j, @$ S+ d& K/ F - }, {* W2 v1 M1 u; ?9 }! S
- void mainAction() {
9 E; }8 ?! i+ I' T( O& [6 y - // 发送请求
. P+ V" B" W. y/ D9 v - doGet("http://google.cn");
" S3 X! {" t0 k$ }1 w - }
- |- W* g) i& A7 r+ H# F
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