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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)
- |% {4 C8 M8 @- A- #include <ESP8266HTTPClient.h>0 n9 p$ }7 Q: y5 Z% g- N( I( r1 e
- #include <ESP8266WiFi.h>
: I( t7 P0 `* a0 _ - #include <ESP8266WiFiMulti.h>( n2 y; z6 z/ O+ M: L
- #include <ESP8266WebServer.h>( _6 Q: _0 H: n' S/ t- [0 {( T
- #include <arduino.h>) D, N4 O7 e7 Y' E0 f ]" A8 U; ~
- ESP8266WiFiMulti WiFiMulti;
' J; H$ E# n5 u& h - ESP8266WebServer server(80);7 a+ ^: Z$ h* P9 p- t
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
, D# k8 I5 L2 d6 q - ADC_MODE(ADC_VCC);1 R& ~( c6 [4 y. @ A
- void setup() {
4 N4 v1 u- M8 @% i5 c/ u: k9 C# H" I - Serial.begin(115200);
: p4 B1 O6 b, [, e. T: m - Serial.print("\r\n\n");6 u/ e8 I5 H6 s: h6 s+ I# l
- pinMode(2,OUTPUT);
, t) O5 |; F& |1 _$ ]/ z- I/ S - // WIFI
1 F. c4 W: K+ w7 O# l& X - WiFi.mode(WIFI_STA);! L! d" H }' T, i9 ~+ ^
- WiFi.hostname("Sparkle");: M9 ]6 ?) }' D8 b1 V+ |
- WiFiMulti.addAP("wifi ssid", "wifi password");
3 n ]" Z. O4 s4 T9 @ - int tryNum = 15; {/ o; O4 a8 H; B# v: d
- Serial.print("Connect WiFi");
; p$ T( x2 h$ k3 D0 {* B1 {5 T - while (WiFiMulti.run() != WL_CONNECTED) {0 t$ F u' X: U/ Q
- digitalWrite(2,0);
0 r) N. q# V9 j3 k: O5 x+ w - delay(200);( }/ q5 q3 }1 R6 G6 t5 B: N0 {
- digitalWrite(2,1);* V0 \6 I% ^3 ~8 W! s
- delay(300);# m; `& _7 g+ r* j# s) N' E# C
- Serial.print(".");
- {) i' e4 b( a# _- R - tryNum--;8 z: i# \% F6 X# T$ y- p
- if (tryNum == 0) {
5 b/ {/ W9 z: t" y; m - // 1min
/ t7 Y% b9 m2 `+ t# f - // ESP.deepSleep(60e6);
5 v% u) B. z; Z) \5 B/ p - ESP.deepSleep(0);# n) d9 u5 u. ^5 Y
- }
5 v1 E( v* ?+ [ n1 ], B% v - }# \ R, o8 o0 p& E$ O" o
- Serial.print("\r\n");
, S% W6 K$ D2 [9 u* m - digitalWrite(2,1);
8 x, _' b% I! g( p$ M - Serial.print("IP address : ");: N8 i- q3 X3 q2 D- z
- Serial.println(WiFi.localIP());/ f% a, S3 R0 ? |/ V( I- C
- server.on("/", HTTP_GET, [](){" R2 O: S* |1 \ Q. B- I3 d
- server.sendHeader("Connection", "close");; R- f7 K! t; d, Y$ G! L. Y
- server.send(200, "text/html", serverIndex);
4 Q( b/ N: Q/ w) i - });5 I8 W3 v1 g' X8 u- t, X$ I2 j
- server.on("/update", HTTP_POST, [](){/ b0 s1 a2 [1 E- g
- server.sendHeader("Connection", "close");: f4 w1 U9 t4 T
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
8 Q7 c- `, {( ?# K8 z D. z - ESP.restart();2 D; i# O2 j. A/ W% n j
- },[](){
/ ]! V4 Z0 L: l1 f; f" K# v7 P - HTTPUpload& upload = server.upload();. j( {/ V" ^$ k b
- if(upload.status == UPLOAD_FILE_START){
- c( U* K, W( |$ N9 d - Serial.setDebugOutput(true);9 X, n0 X7 c5 h# j
- Serial.printf("Update: %s\n", upload.filename.c_str());
/ M1 r! ~# T7 h# t - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
. n3 H2 Z6 ]- P- ]8 P1 a - if(!Update.begin(maxSketchSpace)){
m9 C& z: T& @ - Update.printError(Serial);
) P+ L4 j) m4 y) Z! [8 e) g - }& l; A* ?; }7 c1 }+ z0 ~) n
- } else if(upload.status == UPLOAD_FILE_WRITE){) W5 {# p; h3 a; M8 M h9 O3 C6 f
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
3 V S2 ^# S0 s5 r( f% |3 L7 s - Update.printError(Serial);
/ k* X) B8 M" Z! J! U/ n5 ?% t - }
) I5 I5 y' V3 `+ h9 b7 G+ a: s - } else if(upload.status == UPLOAD_FILE_END){
; r Z2 ^' A7 ~9 e - if(Update.end(true)){
) y# ]. d; k: U- P: N+ m5 b - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
+ K9 ?% S4 k m! M# [ - } else {! K1 t; H/ [1 x0 q/ s# I2 f8 I
- Update.printError(Serial);' W' m+ z; d! k
- }( M& i+ @6 ~& `0 ^/ a
- Serial.setDebugOutput(false);
8 _" S' }+ ?# g8 g - }
& a/ ^7 ?: m* i: S0 r- f - yield();
# {. v& N# \/ J D - });
* d8 O5 j O4 \& K - & L/ F; i; E( L# W' L7 Q
- digitalWrite(2,0);2 t v t8 m8 C' S
- mainAction();# e+ j9 v2 u) L3 v, K! O) @' n
- if (digitalRead(0)){
1 G( _6 _, k: _2 [& U& b$ E - ESP.deepSleep(0);
/ t9 I: p* M6 j1 x+ o6 t! ?# z, A - } else {
" y8 V: e5 t2 V7 ? W - server.begin();& {3 O* @+ B+ h0 K/ v* Q
- }+ Q7 R+ r* F5 I
- }2 c# X8 l/ f' ?4 q
- void loop() {3 }* x$ K! ?; C3 Z
- server.handleClient();
& h! k; c0 |2 f9 q" @# Z* ~5 ` - delay(1);) U, H3 P0 u7 H0 _
- }; f2 y1 j$ m- E3 v- t; I& O4 w
- String doGet(String url){, j3 K% \' \. i: ?8 Z) Q% K# N' z H
- if ((WiFiMulti.run() == WL_CONNECTED)) {2 y6 b& p2 `2 Y9 O% x: Q7 I4 h
- HTTPClient http;; ?! u9 E' g% O% q0 R. u
- Serial.println("[HTTP] begin...");" M5 g* f5 f# ~& k Y
- if (url.startsWith("https")) {* U' m9 e. \; E* v
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");& \: Z2 A4 l. ~4 o# @% y% S# f
- } else {
# ^ S( b4 t+ B, g) l R1 { - http.begin(url);' ~- O7 u( o' f7 ^9 ^
- }. b6 U2 Y/ M% F3 }: t3 U
- Serial.println("[HTTP] GET...");* |! w9 |8 z' m% J& J3 ~$ E2 F
- int httpCode = http.GET();' u0 b2 v3 M8 A4 u
- if (httpCode > 0) {" q7 T5 j% F9 E7 z; i6 q
- Serial.printf("[HTTP] code: %d\n", httpCode);
/ p( C- [" m$ l8 i8 [0 `# H - if (httpCode == HTTP_CODE_OK) {
3 O- Q# N# k* A0 U e+ \ - String payload = http.getString();
6 i5 x% \' `' {- Q9 a - Serial.println(payload);% m) { Y& I1 G
- Serial.print("\r\n");2 A Y8 \; |1 a h* \; O6 I
- return payload;2 ^% c8 E3 q5 i& ^! i L' f
- }1 x" t/ s) |. ~! Z2 x+ Y; n
- } else {$ M& f. B+ C) ]+ y! a+ U- L" E" a1 Y
- Serial.printf("[HTTP] GET... failed, error: %s\n",
5 L5 o: ~9 k ]& y2 S9 ~ - http.errorToString(httpCode).c_str());
4 B9 q" t8 y! G - }
) u" \; x2 e5 [1 f* O+ Y5 d- n2 Q - http.end();
% F5 t7 A2 `( x0 ]9 Q6 F - return "";
% N% V$ l9 U0 |5 } - }
7 S2 P1 f: T2 X2 ?" D6 K - }
# H9 f2 z, J0 s. x! K - void mainAction() {: q+ H! a- w5 h
- // 发送请求
5 _6 `7 Y6 C5 W6 }' Q* U - doGet("http://google.cn");
3 ^* v; i6 r6 F9 d - }
! s( @) J/ T/ ~6 D. v% P* E
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