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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)
8 J1 a f$ }& M; O% V9 ^- #include <ESP8266HTTPClient.h># D1 [3 l4 D) c; o( {6 Y
- #include <ESP8266WiFi.h>1 G4 k+ H: L! o4 h7 w
- #include <ESP8266WiFiMulti.h>
3 [1 `- D a" P" }0 `( }, f; k - #include <ESP8266WebServer.h>
9 |, d( |" B4 o; M& _" z6 g - #include <arduino.h>
/ c! z' R: | I9 D8 h& ] - ESP8266WiFiMulti WiFiMulti;3 U: J- z/ F$ {3 K9 n( I6 p8 @" @
- ESP8266WebServer server(80);
! r2 Z5 p( k6 O - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";* I/ j, s# `1 K! B+ J" X
- ADC_MODE(ADC_VCC);: j- w8 @) D; ]4 d0 F
- void setup() {) o! U) U9 H0 z7 O- a
- Serial.begin(115200);3 H+ o; `+ K; k8 Q! F' X5 S. Q
- Serial.print("\r\n\n");2 ^, J% u$ W( \% u& @! z6 s7 A
- pinMode(2,OUTPUT);; ~9 [ _6 g+ J$ L# d8 _: m* [
- // WIFI. I9 D8 Z: F2 c- p$ i4 p' Q
- WiFi.mode(WIFI_STA);5 i1 H: N$ ~4 d( J
- WiFi.hostname("Sparkle");5 f, ?5 R3 A X$ b% |# ?) }. Z5 {0 j
- WiFiMulti.addAP("wifi ssid", "wifi password");
$ T0 ?! k5 T. ^& k - int tryNum = 15;2 x$ D9 o. |3 a& s
- Serial.print("Connect WiFi");2 `$ n5 Y; O) s; x
- while (WiFiMulti.run() != WL_CONNECTED) {
# g( Z6 Z' Y6 l, G - digitalWrite(2,0);( P0 {7 s' C0 Q& ?1 g
- delay(200);- r6 @) y5 b0 T; ~ ~' W
- digitalWrite(2,1);
% W! T/ R# m; q2 @* _" a2 ` - delay(300);1 Q- C. d3 y+ o/ f
- Serial.print(".");
2 H: c# y4 m; h, J - tryNum--;
3 U3 ?! V" _; j) e - if (tryNum == 0) {
' a) b. v4 U3 G. x x. C+ ^) v - // 1min* ~2 M W8 `) V4 K$ _% D+ S
- // ESP.deepSleep(60e6);
0 b% h2 h, D! H6 K7 ?3 {% ^ - ESP.deepSleep(0);
+ ~9 z7 X# F' q. s - }6 o% o; q% A9 o" m8 P
- }
1 n6 u) h9 g# s5 C - Serial.print("\r\n");- n F/ c0 J2 {: q, q A
- digitalWrite(2,1);! a- r/ J8 J) r8 ]: J7 D2 f4 M
- Serial.print("IP address : ");8 P+ s; U) D' R2 s& m
- Serial.println(WiFi.localIP());
_7 ^: x2 |. X; f a7 s+ ^ - server.on("/", HTTP_GET, [](){
& g k5 a5 q6 ~5 l: R7 [( _ - server.sendHeader("Connection", "close");; F" w6 l$ U1 Q n8 \* c$ x+ z
- server.send(200, "text/html", serverIndex);
" f7 I4 x5 [! T4 Z' f - });
0 e+ C2 a. @* C9 K* r% r( A8 a5 N - server.on("/update", HTTP_POST, [](){! z9 K) D7 @2 z
- server.sendHeader("Connection", "close");3 k% m+ p: M" i; `
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
- O9 ]3 C: \8 b9 `, R; C: {# w6 { - ESP.restart();
. Y, Q& z& S. S# N1 Q! J - },[](){( [" z9 {/ l& j1 ^8 K! n3 R
- HTTPUpload& upload = server.upload();0 x- ^9 |/ n* @7 [6 u0 ?; }% b
- if(upload.status == UPLOAD_FILE_START){4 ?, l( |6 j t1 l( t0 A$ o# j
- Serial.setDebugOutput(true);0 h2 ^! q% e3 d
- Serial.printf("Update: %s\n", upload.filename.c_str());6 _; A4 _, p2 R7 ^$ Z
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
4 _, r7 h$ }+ D9 B1 }, ?; y7 \ - if(!Update.begin(maxSketchSpace)){
. |) p" a6 U: M0 P7 J8 D! O- ` - Update.printError(Serial);2 K |* ^2 G( {: J
- }
_5 e, {) v" f: v - } else if(upload.status == UPLOAD_FILE_WRITE){
1 M- h6 q0 P1 Y- R5 @0 X - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){+ B' d8 T, G* [" o
- Update.printError(Serial);: m) g6 l! X, P- S9 C. g S, J
- }
# x+ {# C' w5 g& H - } else if(upload.status == UPLOAD_FILE_END){
* k& ^4 M9 S& f( z z+ R' d - if(Update.end(true)){
# e# O& y6 L5 x7 c - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
7 v0 B8 b& |; M8 V: t1 x9 c - } else {7 L* {/ I: t+ J! T4 p( @
- Update.printError(Serial);
5 L2 K- D# F0 Y4 Y# j - }
' y9 V' E v# O! Q7 M. z9 Z - Serial.setDebugOutput(false);# X4 R3 t9 @" e+ ~- O) I: J, d
- }" T E% b' d' U
- yield();
, K/ P+ \0 N. l0 p9 m. {# G - });
* k( [# }( t, ~. F: K# V6 G. b' I' Z -
% [! e I* }9 f& W; Z - digitalWrite(2,0);% t+ M5 O% o! X7 I5 F8 K0 G
- mainAction();. O- l/ z- W4 X
- if (digitalRead(0)){$ }6 M% R4 m6 }. S
- ESP.deepSleep(0);
v* r1 n7 N$ o; O' i( k - } else {
# h8 @0 a* e1 e& T# o" t5 Y - server.begin();( G; o( R* A/ D( F: v) o0 H
- }
8 E% \0 d: L( c! N - }# b2 h4 p8 }* T ]4 K+ y
- void loop() {
/ K, @( o1 d# H. N! C3 O - server.handleClient();9 l& d$ M2 Z1 s. g8 t
- delay(1);
( F1 ]9 I' w8 O0 i5 M - }
7 Q; f. ~- Y1 A c* C - String doGet(String url){
% H" b) ~! N0 A7 a2 d; G: u( M* C - if ((WiFiMulti.run() == WL_CONNECTED)) {
, j# D0 v; D1 g4 Q! L* q - HTTPClient http;
0 y+ x5 B3 u. y# C - Serial.println("[HTTP] begin...");
' t8 e6 t" X/ B# D* L" w* ] - if (url.startsWith("https")) {* e8 N1 A: {" S4 ~6 l+ w6 M& f
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");5 x% a: u. { k" e& e
- } else {$ I0 {- s: H/ g7 v* }% C
- http.begin(url);* `6 Z; U v' V: G2 F! q- W
- }. w9 O- O( W! p/ G2 R4 _
- Serial.println("[HTTP] GET...");# {" h/ R* F' H5 ?
- int httpCode = http.GET();# |' k$ H; O* y! P9 j: t5 w
- if (httpCode > 0) {
; m7 e7 F8 n- D. @# c Q! F! `! ^: q% Y - Serial.printf("[HTTP] code: %d\n", httpCode);) z6 S. z+ J6 ]' a0 C- [# z
- if (httpCode == HTTP_CODE_OK) {
- r. L* Y0 E2 a; {* N& R6 u - String payload = http.getString();4 F+ r1 e" X& O, t
- Serial.println(payload);; J" y# u( k/ @+ l
- Serial.print("\r\n");
4 r0 @' W! v7 R3 H' Z* a - return payload;8 I& |- y+ Y* N& Q& Y
- }4 d, R9 i7 {" @+ P
- } else {2 j2 P3 P; z$ C3 d; L
- Serial.printf("[HTTP] GET... failed, error: %s\n",' y* f: ~% N& Y0 s0 L% L
- http.errorToString(httpCode).c_str());, i7 E* s2 q5 u/ N% p; O
- }- ]) c" F8 z. A* S
- http.end();7 {4 e- N0 T+ b9 N/ k
- return "";+ r6 @, G8 `" L; g
- }
# p* D" A/ R) j" ?1 x/ K/ f - }
2 n2 O H! Z, t1 ` - void mainAction() {3 W/ \: R! h5 T1 i/ [0 O
- // 发送请求
9 ^$ n, U2 k( v - doGet("http://google.cn");' n+ [+ ]# J5 B+ O% H5 W
- }% y9 H5 K1 a5 }) D# Y6 h
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