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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) g: ?0 o9 F7 a
- #include <ESP8266HTTPClient.h>, k' e" Q" n/ I4 M! r/ C
- #include <ESP8266WiFi.h>) \8 g% t g8 Y/ y F4 l
- #include <ESP8266WiFiMulti.h>
5 J8 O) `. v6 D) ? - #include <ESP8266WebServer.h>" z# E. V5 X! B
- #include <arduino.h># B% \) `; l, w9 R6 ~$ }' F8 t
- ESP8266WiFiMulti WiFiMulti;
7 C+ ]. @# l# G( l - ESP8266WebServer server(80);
k; V8 k( \( a# a) k; a3 m - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
1 K( X* L8 U! J2 X" A/ L# [. P" k - ADC_MODE(ADC_VCC);
9 U' G# b. X! c. }. P - void setup() {$ f. R& l& R0 I5 o9 o
- Serial.begin(115200);
" e6 S6 G( @6 R: e& w% m) x - Serial.print("\r\n\n");( F: K! I/ ~, U. _# E
- pinMode(2,OUTPUT);
) X4 Y( f" s+ A1 Y: y+ x - // WIFI% x* N: j" ?% j o# n1 }
- WiFi.mode(WIFI_STA);4 {0 E3 _* u& {" h) h9 ^" }
- WiFi.hostname("Sparkle");
2 M7 Y; e" B8 w8 l# H - WiFiMulti.addAP("wifi ssid", "wifi password");
; {2 L" D$ _0 [) b* C2 u: ?/ ^ - int tryNum = 15;% f3 C- A# i0 w% H; L9 U
- Serial.print("Connect WiFi");. W# t4 h8 w+ @/ q5 ?" ^, p$ c4 |
- while (WiFiMulti.run() != WL_CONNECTED) {
& l* p; t, d& R. u - digitalWrite(2,0);
/ Q* M/ ^/ `6 D0 C - delay(200);% ]1 p: `# g# a m/ _$ H+ _" v% M$ @
- digitalWrite(2,1);8 l, {1 ?0 w8 ~! N* F2 ^+ L' ]0 I, Q: ^
- delay(300);/ D8 O8 I2 y0 m8 v7 c+ w4 N
- Serial.print(".");
( z0 |; Y4 ]9 i( F' o - tryNum--;
Y" M; x3 v1 E; d6 F - if (tryNum == 0) { J+ J; Q( S+ F3 Q! W( g, L
- // 1min
$ b# a8 y- B" Q4 x. v1 n: D - // ESP.deepSleep(60e6);
: O4 p# a. p+ j/ U) t# Z* x - ESP.deepSleep(0);' u" G) H$ i- t
- }
1 |2 K i$ t* @' C - }
0 ~8 ?( Q8 x S8 R1 C - Serial.print("\r\n");: e* [* W! n4 E+ U9 H$ ]
- digitalWrite(2,1);1 s" [: q) z# a) T: r4 Z
- Serial.print("IP address : ");/ R+ L# C" `# B( M! ?# \) v
- Serial.println(WiFi.localIP());
+ P! C2 y- U& b1 \+ _) x/ _7 ? - server.on("/", HTTP_GET, [](){$ G' v4 d$ X* g7 X9 |
- server.sendHeader("Connection", "close");3 ?7 M5 t4 X2 i- B* t2 r& P3 M
- server.send(200, "text/html", serverIndex);
, c0 V5 [6 r- {% c: z - });
9 y* J5 T' q8 L: q, O6 Y - server.on("/update", HTTP_POST, [](){
& I( t u% T/ b - server.sendHeader("Connection", "close");
0 M; X) e6 D- ^; F - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");, m. d/ _$ B' o3 {! K1 I
- ESP.restart();
/ g4 H4 D( `7 r& V! ^8 u& u$ O0 W - },[](){" w7 q( ?# g, C% B. k( U$ D
- HTTPUpload& upload = server.upload();2 X( i. Q" z! _' p2 S+ C
- if(upload.status == UPLOAD_FILE_START){1 a6 Y4 D1 a9 {& Y j4 R" b6 q q, f
- Serial.setDebugOutput(true);3 Z! u- j7 ^2 C, W- ?! O% @
- Serial.printf("Update: %s\n", upload.filename.c_str());
: u! W! b7 K& p; L; N% H - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
$ s1 U/ g7 |8 l( B8 S* [ - if(!Update.begin(maxSketchSpace)){
& a8 h" v$ `& W* x! z, D - Update.printError(Serial);
# R% B1 ^$ S0 [* [; m% Y- Z; O - }
" k1 j1 x2 z: X g# p, E: N- c4 S; H - } else if(upload.status == UPLOAD_FILE_WRITE){, W- f4 d- D" M9 T7 ^
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
( s( \# G% I; @0 [# F3 b' n - Update.printError(Serial);# p- s& c/ P! _1 Y2 W, u
- }2 b! t2 b& C5 a. x1 h4 Z# v+ m
- } else if(upload.status == UPLOAD_FILE_END){6 o+ i- l+ z* ~+ b: \
- if(Update.end(true)){; ~6 N- s' H- M4 {& I
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);, g# |( d0 `3 j3 i8 K
- } else {
' ]/ }, O, S8 O# E" g0 Y - Update.printError(Serial);' g. h8 P1 o3 ~1 s( w
- }* }6 j5 X( p7 I
- Serial.setDebugOutput(false);$ |" S1 } q; B- N5 A5 ^2 F/ r2 N
- }
t# H" \$ |1 v. ` - yield();& y( I, p7 [: p
- });
+ J3 A5 A$ b g -
! {* A$ I% n9 Z. U2 H5 a, a' ~ - digitalWrite(2,0);! @) W% I4 G& G& u4 N5 F
- mainAction();
1 }! g4 F2 X9 {; c; k: b - if (digitalRead(0)){" M* C3 z/ K3 d# M# |% v5 {
- ESP.deepSleep(0);- C/ J/ ^$ g$ K- L. k e- S0 G( t' L
- } else {
4 @% B% Q7 [5 @- [9 ?2 E& M - server.begin();) a S8 b8 N5 {
- }
; e# j R, b# z/ a' p3 F, w5 [9 q, f - }- i! `4 A7 R: ]7 w0 x* i$ u
- void loop() {
1 {* y5 U. |; R: |4 d# J) G6 G - server.handleClient();
: S3 U* m& Q; m - delay(1);
" q$ X4 x9 d, s+ q, S - }
+ ?9 H S' f6 A. P - String doGet(String url){7 U' `- y6 [+ W
- if ((WiFiMulti.run() == WL_CONNECTED)) {+ K- N% N4 S& l: I; u$ Y
- HTTPClient http;
! x) M3 S. Z* e3 _; Q5 S - Serial.println("[HTTP] begin...");' w, j6 ? Z. |' @; |
- if (url.startsWith("https")) { C) U4 @2 o& ~- E( b
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");9 l* v. y4 S: X. e1 W- B
- } else {, n3 Q6 p# T: v2 N3 F l/ L- d
- http.begin(url);1 m. j7 |6 I) h* A
- }
7 f0 x4 P( o/ b- u; _: z+ p" Z - Serial.println("[HTTP] GET...");7 p% U& Y7 H: H
- int httpCode = http.GET();9 q# g& y1 g1 ~9 ~# _
- if (httpCode > 0) {: D5 A1 d* [) ]! G
- Serial.printf("[HTTP] code: %d\n", httpCode);
' ~ G: j& Y. e; K - if (httpCode == HTTP_CODE_OK) {1 ~9 p" M. N- a" B. `0 Q4 q
- String payload = http.getString();
- U; \$ S3 u7 k( _% }; |. N. I - Serial.println(payload);
5 Z- G1 o7 r) X - Serial.print("\r\n");
) p3 o& U# W8 f- W( \" [! R - return payload;8 b% R' N6 {( C, b7 _3 i
- }
; A) x2 y/ I+ N - } else {
; @ f+ P" }( F6 V, g/ V4 l - Serial.printf("[HTTP] GET... failed, error: %s\n",
& ?- }$ E4 k7 v0 q% m6 t - http.errorToString(httpCode).c_str());
( M4 W) }; i/ _, _! ]4 a - }
- `6 p8 }- m& P$ i- s7 T. F7 B7 D - http.end();
- b9 J- E: ]) n4 p& G8 w" ~ - return "";1 N( D$ L6 ?! B' ^
- }
' C! N- f& A2 o: f- i" o - }
! z3 P5 a* _) a9 M; b/ B - void mainAction() {
) Q, T: X, m8 Q; U. I5 d - // 发送请求
( W% }( @$ U% U- z - doGet("http://google.cn");
" s3 a7 F9 g* U1 g! }' r' q1 m8 F - }! Y3 [& l* e( f% Z
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