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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) E8 [( o$ k' o6 p! K8 N
- #include <ESP8266HTTPClient.h>
) z; s/ p- T) y) \5 E - #include <ESP8266WiFi.h>
4 H. g5 g# Z. S) C, H& \- u- ` - #include <ESP8266WiFiMulti.h>0 K5 @5 O& J6 t4 T* h' a& p% i
- #include <ESP8266WebServer.h>9 i3 W5 P# T/ y* a+ ^
- #include <arduino.h>3 V' q+ J- A3 [3 Q
- ESP8266WiFiMulti WiFiMulti;
6 m4 B9 [# R5 r# _! g3 _ - ESP8266WebServer server(80);
( T7 o2 M( D$ x8 x4 {2 L, b - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
( }8 g$ P1 n# N2 G# O$ O# d - ADC_MODE(ADC_VCC);
" ]+ c% R: A3 t - void setup() {
2 {7 p8 O; n6 z, }* j6 J, d - Serial.begin(115200);+ U# L% [5 A5 W* Z" i
- Serial.print("\r\n\n");
/ z. B1 Z2 C( e1 c - pinMode(2,OUTPUT);
# p& r$ t) f, x& t0 m' o - // WIFI
. w! \0 p& @" o4 _ - WiFi.mode(WIFI_STA);* ]# w! i7 a2 k) [
- WiFi.hostname("Sparkle");
0 U* g+ c6 i& }: c2 Y - WiFiMulti.addAP("wifi ssid", "wifi password");
" s9 k: }7 |% m0 ~8 v2 M6 f- M' b - int tryNum = 15;
' Z) b- d+ r, m - Serial.print("Connect WiFi");
4 R Z. b# @) j! M* C# @ - while (WiFiMulti.run() != WL_CONNECTED) {2 c- L) b" {9 f: \: k
- digitalWrite(2,0);' _% ~# J1 R: U7 _
- delay(200);% u+ [& B* I, K2 q) V7 l F) ^
- digitalWrite(2,1);$ M: f; c5 { S$ U! [2 j
- delay(300);: e7 X. w8 \ r% X6 D
- Serial.print(".");
" s* T4 ^& D$ n/ ?, }( } - tryNum--;
) [0 K: G6 L0 y( ~; Q4 W* j0 ` - if (tryNum == 0) {: X7 p+ f6 @7 M; _. ]
- // 1min
: [; ^ f- L- J' ^( K/ V - // ESP.deepSleep(60e6);! t- Y1 L, K$ S1 \/ ?; m
- ESP.deepSleep(0);
% {# n5 F: u; f# [% @7 B, L, s - }
% x! n. r+ Z: j! T - }# Y {* I+ [% Y2 Z' H" O0 u
- Serial.print("\r\n");$ i9 F3 r1 F2 f/ q
- digitalWrite(2,1);# p+ Q$ S; L; v0 b q8 T6 x
- Serial.print("IP address : ");
$ T9 J# O$ f& M# h - Serial.println(WiFi.localIP());& M& V* z: _$ s7 b1 x1 i, Z- l
- server.on("/", HTTP_GET, [](){
7 T: L0 B: M" s, H" R: M; r3 B - server.sendHeader("Connection", "close");
# K4 V5 G/ J+ ~: q" @% J - server.send(200, "text/html", serverIndex);3 A% F4 Y, {( r: N/ k0 j
- });
9 r/ g4 N" e6 f" }1 a) x5 J - server.on("/update", HTTP_POST, [](){
+ X2 `' Y: {% |7 l$ U3 W8 y* t - server.sendHeader("Connection", "close");( w' i2 b! y/ R% F" `& B$ P
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");% }* s/ }/ p B: [( f* |
- ESP.restart();
% _5 s* ^7 S* |& \6 B% }' u) B4 Z! ~9 ]6 w - },[](){
: Z9 U* C' i O5 ~4 F - HTTPUpload& upload = server.upload();) T0 O! k( ]' I+ E/ B5 }& e- s; [" a
- if(upload.status == UPLOAD_FILE_START){% ]( d B4 g9 G' g0 @+ n. M4 Q
- Serial.setDebugOutput(true);
0 r7 n0 x( k' D T3 u8 X8 Z' } - Serial.printf("Update: %s\n", upload.filename.c_str());! j# s3 V8 T4 ~9 }. `+ n' y& V' K% Q
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;# |8 S* E& G) y
- if(!Update.begin(maxSketchSpace)){2 `6 y$ ^ }6 N6 G: C
- Update.printError(Serial);2 C# n. P; Z2 f) A; }/ s
- }
& B" w" _2 [3 W7 u5 z - } else if(upload.status == UPLOAD_FILE_WRITE){
1 J4 _7 ~' n5 X$ c' H8 g - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
2 g! ]0 B2 E9 T7 j1 b6 g - Update.printError(Serial);' B5 m- [; ]. s
- }
' J& M% E* m- E4 a0 B - } else if(upload.status == UPLOAD_FILE_END){0 B& X O8 F2 X3 z5 G! S
- if(Update.end(true)){* B1 p- x; B( r4 K9 |1 ^
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
. E) x; a; g" d& z' N5 K/ B - } else {+ o: x0 w! d; ~+ B2 N* k
- Update.printError(Serial);7 c8 d% E$ B4 W
- }3 t+ H. U) J L& I% d7 d' v
- Serial.setDebugOutput(false);+ L/ ?! _0 D) R; ~6 g& x* j
- }
) Q) ^# b, {* F* M& { D( H - yield();
) G( Y6 F2 r/ s+ Z: u - });
! [7 h* l1 J8 m0 q% t; B& I - 3 {/ U5 V: o6 R1 _2 o: r4 q7 K4 N) g
- digitalWrite(2,0);( ?9 E+ g. w% J C0 ?& x
- mainAction();
" q$ ?" g, ~, V - if (digitalRead(0)){- B$ X! O6 I" Q9 r8 t' s5 V
- ESP.deepSleep(0);
% E. u, k; r; D, i; G - } else {! E' S5 F1 [; K* A8 p
- server.begin();
; i. p8 E( o0 z+ S. V5 R - }
! G" C' K% t' {& n% u( \ - }7 l* S5 c( j; G n1 a, A
- void loop() {2 r/ v1 K: J! e2 U2 j5 ?, e
- server.handleClient();: |: C# ?3 Q8 | ?
- delay(1);
( o" A' d. A8 [* { - }
0 d- X2 i& Z) S, J4 _. ~' D - String doGet(String url){
0 N9 k8 Y8 i: f: I3 j2 T9 E - if ((WiFiMulti.run() == WL_CONNECTED)) {
7 ^( [9 j Y3 A- F - HTTPClient http;
$ @) H0 e4 D l ]; H - Serial.println("[HTTP] begin...");9 ~3 H/ {* ]2 i& c" `
- if (url.startsWith("https")) {6 S) B* L7 ~: ]" w; v. }
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
. x# W) z! h1 }" p - } else {* M( y# q" P+ H- M! t
- http.begin(url);
5 H5 N' d# c( R1 ^ - }
! f+ i! U# y# g( ]! n1 w - Serial.println("[HTTP] GET...");
9 w1 D9 ? v+ n/ p# ~- p: b: C/ Y - int httpCode = http.GET();
/ {# z. }% M* |/ L, U - if (httpCode > 0) {. ^! m# _+ m, V% M/ X1 f
- Serial.printf("[HTTP] code: %d\n", httpCode);
/ |+ X4 `: C" |& ~" v0 j# u - if (httpCode == HTTP_CODE_OK) {
- l; v5 z# e7 @% _ - String payload = http.getString();
0 c) R8 g, ^& J! O - Serial.println(payload);
& \% I0 g) g7 ]5 v8 f - Serial.print("\r\n");
# d3 U) U! a. ~. m) U" f/ d - return payload;! L: d3 A( u- H6 C
- }
3 r: K1 W/ e+ f: | - } else {
" I, U# w W" |; \. @0 g - Serial.printf("[HTTP] GET... failed, error: %s\n",
s8 G A) M; L, J1 \$ O - http.errorToString(httpCode).c_str());
9 H0 @( C; ^1 f - }
6 e# W+ J5 o; m4 Q - http.end();1 G) d d8 V9 m; U( ]6 ?+ `
- return "";
' _/ j! b- s% ^) V8 J+ I1 j* d - }5 S4 i7 O$ b$ H& G- p& k. w2 C
- }1 Y, y* Y O4 F0 Q$ O, q
- void mainAction() {: Q8 S5 C* p7 h
- // 发送请求7 }# Y9 l }! r2 |% m' u' O
- doGet("http://google.cn");
7 s/ P+ q& Y5 t# q - }
8 f+ i( E: H/ n9 V
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