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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). y* @# }5 ]9 `- ]# a: G
- #include <ESP8266HTTPClient.h>
' F l# G7 v, `+ m N+ K+ o8 e - #include <ESP8266WiFi.h>& n& `& X4 h s9 _$ u
- #include <ESP8266WiFiMulti.h>
" Q- H- V0 O7 U- P$ z9 K+ z - #include <ESP8266WebServer.h>+ V2 k. c0 q& ~! O
- #include <arduino.h>3 Z- c% v \! d' y9 Q% W* m
- ESP8266WiFiMulti WiFiMulti;
+ t0 Z, {& t! J" a% ? - ESP8266WebServer server(80);# G) J9 Y4 s- o9 x% X7 r* D O' X
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
7 b2 D& {# p4 E# M V b3 g% k2 I1 D - ADC_MODE(ADC_VCC); k4 I6 `8 O8 o+ l w
- void setup() {
! p7 A& s7 X! e0 q9 ^ - Serial.begin(115200);
3 ^( u% B$ N! ` - Serial.print("\r\n\n");
1 r% ]5 o, c; u7 a$ D; y - pinMode(2,OUTPUT);
3 N& N& o0 _, X - // WIFI- p1 P9 J0 V3 L9 Q6 m* O3 U
- WiFi.mode(WIFI_STA);
2 ]9 f+ ^' j7 c& P4 A - WiFi.hostname("Sparkle");
& v/ N) w, E; i {% M) M - WiFiMulti.addAP("wifi ssid", "wifi password");
2 m% u6 [: w8 P+ E4 b+ T+ u - int tryNum = 15;( S$ w5 H" T2 D# }: L
- Serial.print("Connect WiFi"); f! x/ @. o+ f3 h
- while (WiFiMulti.run() != WL_CONNECTED) {
) f7 m2 I% `9 s. q, ]( e1 d8 w - digitalWrite(2,0);
9 |: G5 J4 M' i, C! h - delay(200);
7 B, V# y- E+ x) S0 T7 M5 I" \ - digitalWrite(2,1);9 H7 _$ W/ ]6 v6 O: S4 {! V% T
- delay(300);
, s. D2 E7 S9 l0 [ - Serial.print(".");
) u( M4 P4 z* T' |8 `" _& T3 B - tryNum--;. l$ V& v9 P1 S% k- V
- if (tryNum == 0) {) s A. Q1 ]+ }( x- N9 `
- // 1min
7 M, F, }2 T. ]' b& P! K - // ESP.deepSleep(60e6);
7 ^9 ^3 ~' A9 q2 ~ - ESP.deepSleep(0);/ t9 m3 k1 t# f* _+ d
- }9 a1 f" q, ~% M* o1 F$ a/ ]
- }
7 n8 t" a; W# n! P8 _. m8 y! ~, Z - Serial.print("\r\n");
% k9 c* N% z" b8 k9 k; ~: y - digitalWrite(2,1);
4 U$ G7 }6 x6 n9 h/ k - Serial.print("IP address : ");
* |+ z* a: U9 d; u$ y. ~- @ - Serial.println(WiFi.localIP());7 \ t: f. @: h" ?; \
- server.on("/", HTTP_GET, [](){
" o! E9 b2 M. N - server.sendHeader("Connection", "close");- X% _8 ~6 N$ A# [; Y* _" T
- server.send(200, "text/html", serverIndex);
w; @. w8 [. ^: n - });- m' R' L& |8 f _
- server.on("/update", HTTP_POST, [](){
v5 O/ H Q5 X - server.sendHeader("Connection", "close");
# g. K6 Z- v# `4 G1 F+ w, q$ t - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");* C1 W* @! e. q, |4 V3 z
- ESP.restart();2 y9 X, `3 h! w: o* f3 r
- },[](){
. K; n Q" L' y - HTTPUpload& upload = server.upload();) W) U, k8 G8 ?) ~. b! ?5 x) s5 |2 N0 c
- if(upload.status == UPLOAD_FILE_START){# Q/ d+ ?. I1 q" O
- Serial.setDebugOutput(true);
$ v2 i" {' b+ j7 W( X* T0 O! d" K) K$ B - Serial.printf("Update: %s\n", upload.filename.c_str());
- N2 @8 r. Z4 ?2 c" J8 a( k, [* T# `+ X - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
' H5 i' j4 ~5 Q z; g - if(!Update.begin(maxSketchSpace)){
) f& V) }0 ~0 W9 h( j& k - Update.printError(Serial);
. f. s% @. e! L- G - }* N& e( P* z$ |4 u# u! z3 M% M
- } else if(upload.status == UPLOAD_FILE_WRITE){: }. N% d2 f+ I: \, e& u
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){( k, t2 E- w S7 h1 y
- Update.printError(Serial);0 t3 Y9 p. R+ C, C6 z4 Q" m- @
- }, `$ |( \: i" ?2 ^8 j9 ~
- } else if(upload.status == UPLOAD_FILE_END){1 R" y9 b1 O$ x& i7 D; {
- if(Update.end(true)){
( q1 r% u$ V' c# y. B, l5 D - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
" r9 m4 ], J( r" t - } else {* P3 B/ `4 F. h5 @! q- A
- Update.printError(Serial);
& ]) \9 p: a$ o% V: H - }
- n4 O, J6 a7 ]7 a' N3 s - Serial.setDebugOutput(false);: e9 r# ?5 d" M; \
- }' G( p* o1 R6 P( D. u
- yield();' n% d9 z! E$ c: ^: u" l
- });
) n% _8 a$ S! I! n; L& H/ ?$ F -
' |6 f/ q" z1 A+ [" e - digitalWrite(2,0);1 k6 ?+ q% Q- R7 ^/ Q3 J
- mainAction();( o* w& U; O- }# ]
- if (digitalRead(0)){
4 I# `& @* Z& H0 U8 s. ? - ESP.deepSleep(0);
. M9 {$ g* i* R% i/ p% T - } else {* p8 Q2 ` V; g5 k0 f
- server.begin();! s) T4 h F8 B7 Y; L4 ^, f
- }
) L* P; D( W9 Z. n. q* v - }4 Y- p1 m5 b1 N4 g6 q2 o b( k
- void loop() {
" v2 B/ n& S" W6 X - server.handleClient();
5 }% d! B) x+ K0 b. Q; f+ V - delay(1);
* h$ ~8 j4 w4 W/ N* o, K- u# h0 }, R - }
. y( a6 w) A, }$ ^, a3 N$ x6 J9 c - String doGet(String url){
- f! G2 _5 }) x - if ((WiFiMulti.run() == WL_CONNECTED)) {
' v3 W: p% \/ e. f3 K8 o. b - HTTPClient http;! D) U1 V4 d5 k! h, F
- Serial.println("[HTTP] begin...");
: L% L( k% w% [) d6 M* ]) i( c, T5 y - if (url.startsWith("https")) {
( Q) L/ s: N0 T - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");& D, T0 h# g9 g3 t8 c
- } else {' P0 a! r' m7 K4 T% ~7 p5 z( X
- http.begin(url);, T( ]$ S( I, D( j' q1 V4 E
- }! T& n" x3 d e, c! D* V
- Serial.println("[HTTP] GET...");
6 o, `! U1 C8 x1 n/ Q& P - int httpCode = http.GET();
x0 n) Y# u, | - if (httpCode > 0) {0 x# @7 g0 _( V+ r: {% |
- Serial.printf("[HTTP] code: %d\n", httpCode);
+ c& F8 V. C: p/ R7 q% e4 w! b - if (httpCode == HTTP_CODE_OK) {
0 m+ J6 H/ j/ a3 a( n$ z - String payload = http.getString();% L, N' A6 \ b/ c
- Serial.println(payload);; ]( ~3 A) d# H" L
- Serial.print("\r\n");
# M* j# z9 w' Q8 {' b - return payload;
" L' `) o. L0 `9 S7 H8 N) V. c - }( }) I" z) I& ~( R
- } else {
, J& u. b5 w7 r: N: f - Serial.printf("[HTTP] GET... failed, error: %s\n",
- O9 \3 O; S6 Q- | B - http.errorToString(httpCode).c_str());3 Z+ O9 w& E. p1 a+ P- _
- }
* Q/ v$ L6 }- R) A! }% \ - http.end();& L6 `2 R; P4 H- w: N5 v' m$ |
- return "";
|0 B. F0 r) _; M, {: [3 d - }
! @2 l+ z6 K/ X' H. @; d8 G - }% \0 I0 K8 y. J1 n* c8 ^
- void mainAction() {
; \6 Z8 Y/ o/ M8 h$ Q+ R( q# R - // 发送请求! P) G8 I- O9 x% A
- doGet("http://google.cn");
! X5 J" H' v' F& N' U# ~3 u - }
5 M# E5 X( s- i; P7 x$ E& ]% h
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