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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)
( V( @' i) _3 P) A" Z/ r- #include <ESP8266HTTPClient.h>
: G! e! O& K8 K9 ` - #include <ESP8266WiFi.h>
" k: n* D; c$ p9 ^ - #include <ESP8266WiFiMulti.h>
Z2 l, p5 [$ ~5 ^/ G - #include <ESP8266WebServer.h>& l! r! `) j! S* q) \
- #include <arduino.h>
: o4 n& _! |7 j& X. @( E- [( N - ESP8266WiFiMulti WiFiMulti;" I, M `$ B& @' B+ a# u
- ESP8266WebServer server(80);
1 Y" v: ?% b+ W N9 p' c9 o$ m - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
1 e! P9 r J: t - ADC_MODE(ADC_VCC);, s; J% e1 J: f5 D7 D% e
- void setup() {
2 i3 ]4 L4 l1 C8 M - Serial.begin(115200);+ ^0 C# ~; O0 f5 j6 i
- Serial.print("\r\n\n");
# [! o1 w1 t6 ?1 E1 K - pinMode(2,OUTPUT);
& u) Y$ b- X$ q$ @' c+ _6 z: h - // WIFI' U3 t9 E3 m$ Z8 P- }# P! _9 W& Q4 `! i
- WiFi.mode(WIFI_STA);: p/ w* n0 c+ k. ]9 N* n8 O$ P: z
- WiFi.hostname("Sparkle");
6 F% _ E7 u$ [+ B& D) w - WiFiMulti.addAP("wifi ssid", "wifi password");
- J5 ^' b: S0 v7 K p# m - int tryNum = 15;
- Y) K( [% t3 z5 C4 g: T* n& H: c; T& ~ - Serial.print("Connect WiFi");
/ v# O. k; s4 |/ \ - while (WiFiMulti.run() != WL_CONNECTED) {
7 E/ @6 Y5 j8 w$ H. O1 t - digitalWrite(2,0);
3 P4 `2 \6 X7 {. L# B' b! @ - delay(200);
4 G' t) P$ r5 [8 H/ Q - digitalWrite(2,1);: d& ?7 W1 X U
- delay(300);
/ A/ `* m7 o8 |" c) D - Serial.print(".");
$ w+ \# m$ m" t4 @- u8 Q+ G - tryNum--;1 u& y) S- I: q! O
- if (tryNum == 0) {; H$ Q# ?" ~3 E+ R. A
- // 1min
% `2 q2 W& J$ B# c, X" z; A - // ESP.deepSleep(60e6);
' R6 C7 u2 {' W1 m' B% V F; B - ESP.deepSleep(0);1 K" E5 y1 v# h, M' i" I" F {
- }
6 b+ t3 P+ Q2 N* V5 K9 t% D/ T# S - } ~7 R# U* H. G7 @$ |+ a
- Serial.print("\r\n");/ q3 U( ~$ ], s# x! w
- digitalWrite(2,1);) J% @0 f& A6 ]! A( [/ L4 x; ?
- Serial.print("IP address : ");
% K2 M( o: j' _- L - Serial.println(WiFi.localIP());0 |1 K/ ?$ K& z: V( ?+ z
- server.on("/", HTTP_GET, [](){
; t* _& u# D2 m - server.sendHeader("Connection", "close");
2 W' T7 H8 l5 C( ]% B& W i3 O - server.send(200, "text/html", serverIndex);, a' i$ [; l6 D0 v. ^! t
- });
, K. \+ H, J9 L1 h) a% U# m - server.on("/update", HTTP_POST, [](){2 j2 ?& _8 P$ {) J) y
- server.sendHeader("Connection", "close");7 ^. \( K- p2 t v- E
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
+ F3 w& l6 |! c/ x - ESP.restart();
5 V) l, c" z9 s5 ~$ k* E2 p( [ - },[](){
, r& x7 |" @- r* o9 m7 f q - HTTPUpload& upload = server.upload();
' p! r4 k- ^) f ]5 _" | - if(upload.status == UPLOAD_FILE_START){; g4 ?3 h- i3 i1 @& V4 u9 h
- Serial.setDebugOutput(true);
4 W) R7 G4 Z9 o0 t. K# V: r - Serial.printf("Update: %s\n", upload.filename.c_str());
2 e# K& }1 |4 f* N - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;1 W: T5 o' x3 s& {5 w
- if(!Update.begin(maxSketchSpace)){
( W, g3 S/ ^# K: g6 R. j; n! y( e - Update.printError(Serial);
' X$ }3 I- r3 K6 I1 c! f - }9 N' O* Y: K/ K1 M9 G
- } else if(upload.status == UPLOAD_FILE_WRITE){7 u* H7 B( {0 i2 H# z7 u8 A6 {5 Z
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
* }7 _1 U9 W8 q1 t6 E - Update.printError(Serial);
9 i5 ?' |1 u+ ^5 o1 i - }
; ^" e; c! N$ T2 j. J4 @1 ] - } else if(upload.status == UPLOAD_FILE_END){
5 T) D, F4 m) b' R# ?# g0 J - if(Update.end(true)){
' R7 P7 G8 L3 x - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);5 \0 G4 L& N8 C4 W( R
- } else {
6 P' C4 p$ E: T2 F - Update.printError(Serial);7 h5 p6 \' Y7 q( |) @
- }
8 V- k( A6 B& Q$ V W" r - Serial.setDebugOutput(false);
0 w9 s$ z+ c9 g - }
5 M1 w7 d4 X3 {4 V - yield();
M8 g- H3 ?6 ?( v% ~/ d - });0 r0 i% Q8 ~' L W" Q+ C
-
9 k+ t+ {- S, L" I0 c2 }5 o- ? - digitalWrite(2,0);! r3 N( i! [8 L1 X
- mainAction();
7 ~) L" S$ {: ]& L+ w! k% r( d - if (digitalRead(0)){
' k4 z- x% X) k, J% z- ^2 v3 K - ESP.deepSleep(0);% w+ p8 x9 S' {/ L3 U9 A1 x' ^: `) ^
- } else {
, Z0 c( g' B F5 w! e4 M I1 x - server.begin();, P k3 R8 O1 X( ]1 F" }. v; L
- }
+ ]# M% b' \! e$ R - }
: F+ B8 t5 h, _2 \! Z& K2 F q - void loop() {
' \, `; e% X* b( m5 T - server.handleClient();/ ?" } z4 X6 v( e3 z' E1 a
- delay(1);5 P/ L, D9 A' X+ r( u/ ]& ~1 W2 v
- }( l. x9 R" P" N) A- L- m$ ~1 X
- String doGet(String url){3 f, q! [, d ^: g8 V. [9 h
- if ((WiFiMulti.run() == WL_CONNECTED)) {
6 D# m( \7 N$ n, { - HTTPClient http;
6 M" A& Y- H" v& g& p! p - Serial.println("[HTTP] begin...");
* ]/ j3 \1 j8 K; ^ - if (url.startsWith("https")) {
7 ~& n$ @# A' U7 E2 [ - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
/ [' F+ B" h4 [ - } else {
* ^ ?( _- D$ v8 A0 Z - http.begin(url);
+ x8 b# p8 p8 {' p - }
8 p4 A9 j# Y: B& ?" L- a - Serial.println("[HTTP] GET...");3 Y! K& H G8 _; N P
- int httpCode = http.GET();
- w. L$ g. _1 F* T% N$ A" _2 F3 } - if (httpCode > 0) {
- `- L" Y) O! ]2 c# o - Serial.printf("[HTTP] code: %d\n", httpCode);
3 T- S5 Y. B {0 v& b - if (httpCode == HTTP_CODE_OK) {- T3 v6 h% l' R/ y
- String payload = http.getString();; @% u4 T/ T4 b" w
- Serial.println(payload);
3 ?% Z+ W- n2 L - Serial.print("\r\n");: G1 I2 l' G/ W- y4 N4 ^/ k+ U- y
- return payload;; F# o6 o% m+ O/ n
- }
7 _/ c3 ~2 j1 z' W. u N9 p+ D* G! ~ - } else {2 y, Q* U% x" Q; b2 |% V. @+ S- |3 m
- Serial.printf("[HTTP] GET... failed, error: %s\n",. z! J! R7 D$ l8 I3 I1 Z: x3 {
- http.errorToString(httpCode).c_str());
- Q$ i6 \6 O8 G3 v- S [$ _4 R - }
! ^3 R0 D4 c! X; }5 h# k* \ - http.end();
. W! Q$ v. `* [7 @ - return "";5 ~4 h4 h2 R/ ~8 X
- }
6 \ \3 M. a0 j( K% k# \ - }$ J/ L3 Y+ L) O. V4 J1 D6 s, C' k
- void mainAction() {; e; N- w7 Y5 {
- // 发送请求
+ S0 K5 [! X/ G- f - doGet("http://google.cn");2 y0 ]0 L! |( E, N2 i5 L* A4 n1 Z q
- }$ i* O; X. B3 H0 A2 P1 I+ w
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