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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 ^6 X4 l- d4 N: O9 I( B: v2 N/ n
- #include <ESP8266HTTPClient.h>/ |+ k4 p. @, @8 s& u
- #include <ESP8266WiFi.h>
' S- z3 Z- q0 T - #include <ESP8266WiFiMulti.h>
) @3 X/ A, r0 |0 \" C8 x - #include <ESP8266WebServer.h>* x4 A3 n: @3 x1 I3 b& q$ r
- #include <arduino.h>
9 J+ @2 l s# Y0 w - ESP8266WiFiMulti WiFiMulti;( l* _9 o: Q. B1 ^7 f& T4 e6 W
- ESP8266WebServer server(80);- z3 W0 B& T% y% U$ n! d
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";# ^" x% D/ z" B
- ADC_MODE(ADC_VCC);- W3 b. S: L% e7 O' M
- void setup() {. C9 I+ G7 c0 {
- Serial.begin(115200);
$ a- s' d$ I2 j& n7 b. \0 A - Serial.print("\r\n\n");5 S: {1 [: q- n7 N+ J" h
- pinMode(2,OUTPUT);
5 V9 k6 T8 ^3 w8 N1 `! Z# O - // WIFI
: c. W% e- D# N/ i% M - WiFi.mode(WIFI_STA);
- I0 s6 y* X( b% e4 ^ - WiFi.hostname("Sparkle");, {9 \" }* ]! z5 W. J7 H5 W8 G/ f
- WiFiMulti.addAP("wifi ssid", "wifi password");
# W/ r0 i9 r, j3 j - int tryNum = 15;/ y, A6 n ^, F' q& E- a0 n
- Serial.print("Connect WiFi");- g/ ?0 \) Y/ Y- h
- while (WiFiMulti.run() != WL_CONNECTED) {" O; o9 X% K) i& R
- digitalWrite(2,0);3 [4 j2 C) c5 s
- delay(200);+ Q# b( n) Y$ v: T0 M" s5 L
- digitalWrite(2,1);( E7 e& U b) ]0 ~- I
- delay(300);! q7 Z, d' Y: e2 P
- Serial.print(".");/ E$ R" I, w, g
- tryNum--;* f! b/ @. @* S9 U
- if (tryNum == 0) {2 I; q7 h- R# X& i5 X# h# C% X, K
- // 1min9 V& I, O) z: J) t6 y, Q
- // ESP.deepSleep(60e6); F1 f' z$ N4 T; E Z
- ESP.deepSleep(0);
$ v) B' F' t. @% ]# {) }: i! ? - }- y6 T. i0 U# u3 d* g- z
- }
& p' D1 E$ | Y7 e$ u }* S8 Q! ~ - Serial.print("\r\n");
3 r0 I8 p) x6 k* H - digitalWrite(2,1);( g3 Z% s" i* D& C3 v- i
- Serial.print("IP address : ");3 u* c% K6 Q/ U" F% L
- Serial.println(WiFi.localIP());
5 N3 [3 f! ]- e' G! F - server.on("/", HTTP_GET, [](){
' R, u+ g1 @) G8 |, C - server.sendHeader("Connection", "close");5 F; c8 ?( J F3 U0 m# x4 Z* t
- server.send(200, "text/html", serverIndex);
# ], A7 q8 e1 @- U9 b0 } - });! P4 f! e" y5 B& ^+ Y( t
- server.on("/update", HTTP_POST, [](){- w. Q2 r8 |, i7 u' ], L7 s% \ _
- server.sendHeader("Connection", "close");
3 G/ T0 O. v7 Y# H7 i3 P7 l - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");# M' j' n( }4 z- J
- ESP.restart();) r- d/ f d9 Z; }
- },[](){
+ T: O3 D3 d* P4 r% {; r - HTTPUpload& upload = server.upload();
- d6 B1 f- y4 N - if(upload.status == UPLOAD_FILE_START){& ^9 t# @. @3 b; }
- Serial.setDebugOutput(true);$ E$ l8 O* x# A2 e* d, }' x
- Serial.printf("Update: %s\n", upload.filename.c_str());3 v9 A5 k& r" Z. d; j& U
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
- k. i( z5 u+ T/ ]! G6 g1 v - if(!Update.begin(maxSketchSpace)){
: ?8 |2 w! U7 b# F - Update.printError(Serial);
) K ]7 ~+ p2 o. q5 `! i+ U - }. i7 M4 [/ _; G8 q
- } else if(upload.status == UPLOAD_FILE_WRITE){
# e/ ]( `: q4 z, R5 |: p0 Q! m - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
& t8 K) T4 s( h' @ - Update.printError(Serial);
. u* Q1 r/ [0 U$ L1 o9 T - }1 h1 w1 D5 H: E2 j
- } else if(upload.status == UPLOAD_FILE_END){' t, M- y* V7 g
- if(Update.end(true)){# b6 r! }; K o$ |6 F z# _& N! ?
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);+ U) S8 G2 w& \* X8 W7 R
- } else {
( S: C [ j; e T$ X - Update.printError(Serial);
. F5 V' r- K8 |. w0 l/ u3 I* [ - }
6 l. w) s5 A) W9 ~ - Serial.setDebugOutput(false);( o1 Y7 S. s M" a; r$ N) Z
- }, @! l. V8 k2 Q" ~- u( w! ^
- yield();0 F3 ?+ c9 {' g2 x3 N
- }); I2 P$ e/ Q: l7 y
-
6 q( O, F, r3 W6 E1 h. x - digitalWrite(2,0);# Y3 z) L7 `1 g0 y- o
- mainAction();% _5 d% t% Y) n( [
- if (digitalRead(0)){
% k3 `- G6 u0 t e3 ^% I - ESP.deepSleep(0);
( W. D7 c5 k, w2 Y/ a - } else {
$ G! M, m# J, y1 V - server.begin();; i2 Z( I) t! g9 w9 \
- }) [& i2 f3 \5 F6 z/ J' \6 Q: G
- }, ]* H( k7 u( Z1 ] }) N
- void loop() {
/ g" k" I% q6 P% _ - server.handleClient();
% a; x# J' |, Q2 @1 e! P# x& k - delay(1);
) K) G) O8 R: y - }' v0 H5 C/ }1 f' [" j. j1 i! `: E
- String doGet(String url){
+ v( k2 i5 G% y+ t w( w6 L - if ((WiFiMulti.run() == WL_CONNECTED)) {3 O, I& g" d) [8 ~) w
- HTTPClient http;
" ?0 T& I1 A, ]" i/ y) t - Serial.println("[HTTP] begin...");
* q* G3 _3 H& D, x$ s9 N8 v - if (url.startsWith("https")) {
r/ U8 E' T% M% L - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");. F1 Y. P6 v9 n9 s% C
- } else {$ u1 G' d1 `) a0 s! |
- http.begin(url);# B1 ^/ I. M- R5 F1 S
- }& p0 S& E) e; ]2 o+ R# B
- Serial.println("[HTTP] GET...");5 g! J( f8 r# \" [4 ?) O$ Y* }- n
- int httpCode = http.GET();( J, a/ n! f2 E( [( p5 G
- if (httpCode > 0) {4 ]% o. p( A; S2 v( R4 N6 c
- Serial.printf("[HTTP] code: %d\n", httpCode);
6 }3 n' @. q3 y4 v3 L - if (httpCode == HTTP_CODE_OK) {7 c$ a( S- Y/ }- H9 _, y6 V7 B' q
- String payload = http.getString();
5 {. R' s8 w7 v9 l - Serial.println(payload);2 p) K/ z) Q, W( N, ?) Q, e: {3 E
- Serial.print("\r\n");
( ?! l# H1 A7 {" k - return payload;
, a& R6 o8 U6 Y8 g - }( |, Z6 @; l% g- Y
- } else {# k: U, `7 K( Y% g3 \ M
- Serial.printf("[HTTP] GET... failed, error: %s\n",/ ^: M5 B; n4 J& {' G
- http.errorToString(httpCode).c_str());
" C* u I+ U$ b- E9 V - }8 u! a% \! Y5 ]# x" x8 S( v5 y
- http.end();
# V& a+ m/ q2 h0 K2 ~, A - return "";
* O2 f0 ^' h- i6 Z - }
# v0 @0 L) N: e7 I - }
0 {) P0 T1 m2 K$ F, d7 K6 | - void mainAction() {
5 u& r( ]9 R; b, k" Y1 C - // 发送请求
! b& C1 G: V/ K" S1 i4 L5 [ - doGet("http://google.cn");1 \0 t- j s2 }# E( l. `
- }: t9 w9 [8 Y7 b% ^" C' _
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