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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)2 z8 d$ B* ~' K4 U0 [, l
- #include <ESP8266HTTPClient.h>
# v. l4 P% z7 w1 B0 Z* j) E- p( @- L - #include <ESP8266WiFi.h>" l* @" F7 T4 U8 y. p% N
- #include <ESP8266WiFiMulti.h>% I0 K, t6 z$ G, R, U3 R- T" ^
- #include <ESP8266WebServer.h>
0 Z/ H, {" R0 B2 h. ?! z% { - #include <arduino.h>( ?. {9 d5 e0 v# F
- ESP8266WiFiMulti WiFiMulti;, { E- [8 K( g2 Y
- ESP8266WebServer server(80);4 O! O9 R+ `# U1 n# J
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
' ]( M/ n3 {' K$ w - ADC_MODE(ADC_VCC);5 \* O; ?! x6 V( _4 W, l+ l6 M' C/ p
- void setup() {
& @5 `' _) b( S: ?" M - Serial.begin(115200);+ e* r0 a) `9 s7 J0 V) Q/ Z
- Serial.print("\r\n\n");# B a. Q' U+ U8 e$ l& D" m
- pinMode(2,OUTPUT);: {) s9 W1 z: m" N$ G4 I' |; w
- // WIFI3 M6 {0 s3 G" y* E( k. y
- WiFi.mode(WIFI_STA);
) T# G: w! D `6 a% g - WiFi.hostname("Sparkle");
8 u$ o1 W: p0 ^2 e9 V - WiFiMulti.addAP("wifi ssid", "wifi password");% d" q1 ?/ f! _- C8 S" v% T
- int tryNum = 15;5 J8 ~9 n2 w; w& ?
- Serial.print("Connect WiFi");
! Q2 j \; G; d& m+ o) D2 U - while (WiFiMulti.run() != WL_CONNECTED) {
; L3 S5 B# ]" Z, V5 A4 C" W - digitalWrite(2,0);! P9 m, x) M3 R+ l, R( U5 ^( c( i" m
- delay(200);
v) {) Y) ^7 N$ L- } - digitalWrite(2,1);2 @% i/ [. Z+ I$ Y- ]3 E" W9 `
- delay(300);
$ Y9 P, o; D+ E$ o$ l - Serial.print(".");
& s+ N) ^5 D! x. s" U - tryNum--;; m, b1 v/ W* Y& t
- if (tryNum == 0) {7 b- X0 n$ i9 ^+ k
- // 1min, K2 t; |5 N7 |* Y" T8 N
- // ESP.deepSleep(60e6);
* `' G& U- P! C9 G& [4 E - ESP.deepSleep(0);
* Q8 `( d! K4 l- y0 L4 W+ T/ O2 c# l - }, }* J' }2 _3 X. y5 w
- }
- g1 Z9 I$ y: l/ A - Serial.print("\r\n");7 \. v7 B3 H# G2 a* f
- digitalWrite(2,1);, V$ K8 X' E1 Z- e
- Serial.print("IP address : ");
4 N9 d( q" l# h# ?" R5 n" ~ - Serial.println(WiFi.localIP());6 }) A9 n. I. G* ^) ~
- server.on("/", HTTP_GET, [](){$ J* A. k1 {3 }3 b1 ?+ `) h, y$ F+ ~3 V
- server.sendHeader("Connection", "close");
# t& v& b0 N# T - server.send(200, "text/html", serverIndex);
( z, e( D" J) e, t/ J - });
6 M! [* i+ r2 W$ x - server.on("/update", HTTP_POST, [](){
1 N' Z7 \5 m; M4 d6 _( s# R$ P) X - server.sendHeader("Connection", "close");) q" B1 k6 k4 v
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");/ F) s1 `$ a k: R$ b4 O; l( w1 N( J
- ESP.restart();' J e" V, z! Q7 O
- },[](){
7 d7 B( [+ X! k% v$ n. k - HTTPUpload& upload = server.upload();; U/ i* u6 S* @1 h7 i; f
- if(upload.status == UPLOAD_FILE_START){
4 ^- A( ?. z' F9 B5 B Q" E - Serial.setDebugOutput(true);
# O8 I6 W1 K; J% q - Serial.printf("Update: %s\n", upload.filename.c_str());
3 F* T+ ]. M. P2 C* d0 v h - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;" x2 ]2 T, k- o! r' L: f* @4 u& l
- if(!Update.begin(maxSketchSpace)){
/ M0 k& N; X6 l - Update.printError(Serial);
1 g( c* n9 l3 j - }$ W* z8 H# M' ^. K
- } else if(upload.status == UPLOAD_FILE_WRITE){
. E# p! a, Y @0 Q+ \ - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){2 m: ?3 t( Y5 Y+ i- ]
- Update.printError(Serial);
4 l2 F9 K% }' Q- w7 K - }
9 V3 i4 a& u9 n9 h) ~9 A - } else if(upload.status == UPLOAD_FILE_END){
0 v$ n8 p/ A0 l2 P5 ~. } - if(Update.end(true)){
! ]% l6 k+ c% V4 y% s+ O: W - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);3 ?' W/ z1 ]( ], g. W3 a
- } else {3 d' j8 Z' o# [3 e( b- b
- Update.printError(Serial);
# w* S* S2 L4 {. d' @( m) c. W - }
0 A; @* f% M% _; \! G - Serial.setDebugOutput(false);6 e2 Z- m# G u$ I4 z! g9 E- X
- }
. F- G N( l; \+ ]7 P; E* ? - yield();: D: B# j% t: u2 a
- });& L3 z! U; V2 e: \) Z S. K" ~* d( r
-
3 y5 v, Z& O% _ V! u - digitalWrite(2,0);" u0 `) T! ?- Y$ Z% e, J- c
- mainAction();8 D' I( t, {/ g) B8 O
- if (digitalRead(0)){; g) s: T, q5 Y ?) ]
- ESP.deepSleep(0);, k" L5 i/ K7 Y$ q% c2 y. B+ w
- } else {
0 g2 H- C& k& V2 v - server.begin();( ]2 B3 ^. B, i- D
- }
7 L, M7 G! {+ l' } - }
% ^$ H) F4 o7 z+ F5 C: \ - void loop() {
! t9 D j; V2 m& T! K* E - server.handleClient();
% p2 ]6 P9 l- R$ I - delay(1);
! }. Q) n/ }2 g4 P% d, {# y0 v - }! u% m) b$ J$ {4 Z3 B
- String doGet(String url){( g8 O9 V' s" {& o
- if ((WiFiMulti.run() == WL_CONNECTED)) {
) j0 F3 ^+ `7 M - HTTPClient http;3 W! `4 W" B3 I$ b
- Serial.println("[HTTP] begin...");
/ Z& \# j5 T ]- n- f - if (url.startsWith("https")) {! E2 X* l4 m9 W Q$ Z
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");+ l3 }+ c) Z& ]$ k+ X
- } else {
" F5 B' N2 ~$ f" T6 R" V - http.begin(url);7 b5 _" j2 m8 c
- }- L! L5 P& V+ t5 A+ W, A" k
- Serial.println("[HTTP] GET...");
+ ^2 B( X) a: B9 C" f - int httpCode = http.GET();
/ H+ |. z! u% E5 s7 X4 ^# m8 { - if (httpCode > 0) {
+ j. q: }3 d4 ?; @4 H$ Z& C - Serial.printf("[HTTP] code: %d\n", httpCode);8 z2 U7 `8 f# I9 |, Y1 h3 e
- if (httpCode == HTTP_CODE_OK) {! B3 t8 }9 j/ [/ E0 t3 Z
- String payload = http.getString();
/ F! N$ r5 n# q - Serial.println(payload);
9 |, F9 D5 }- Y - Serial.print("\r\n");
/ l4 Y' f1 A9 ~% E. t1 B# @# z - return payload;
# @$ K/ V- p3 v% c - }
% W7 A. r# I: C - } else {
; u9 s @4 T, o( h( M5 u1 ` - Serial.printf("[HTTP] GET... failed, error: %s\n",
$ Z( c# \: w3 j3 i( y: y( ~ n - http.errorToString(httpCode).c_str());- D' x1 h& [8 x8 k& N
- }
2 q9 }) b$ H; I" S$ Q - http.end();
- d; a9 {' C# @2 k/ \9 a - return "";* c) r* _# k( K( g0 m3 I& L v8 g
- }
& w a9 e; V! S, s6 e - }2 g/ {; T# _8 G; E+ M
- void mainAction() {2 F" T) r( u3 Z4 ~8 }3 I
- // 发送请求
8 c3 E& g5 v8 Q, h; F2 ^ - doGet("http://google.cn");6 r- }* x" A$ G2 K8 f/ h& ?; _9 }! a
- }
! i( t% I- s# h9 h: A) t
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