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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)9 N! ~. H2 s( z
- #include <ESP8266HTTPClient.h>+ z; v" y7 Z; h' Q
- #include <ESP8266WiFi.h>& ~3 g; r4 T2 b0 ~- F, }- r' S6 \
- #include <ESP8266WiFiMulti.h>
- m6 x, p% U( z, {" j6 x - #include <ESP8266WebServer.h>
) Q$ [! d- R3 _; Y# ] - #include <arduino.h>
/ I2 T' @& k+ Y" R d. w - ESP8266WiFiMulti WiFiMulti;! [3 ?3 O' G; ~6 i
- ESP8266WebServer server(80);, q' x5 E0 Z1 a! _8 }; K
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";* z+ H! v. i% E/ P
- ADC_MODE(ADC_VCC);) y3 _7 [8 P( a( f2 S% d6 y! }
- void setup() {
# g+ W% f" o) o4 A3 G- T - Serial.begin(115200);
+ ^. U; N" R! S/ Y" K - Serial.print("\r\n\n");. y$ G R+ q5 k( X
- pinMode(2,OUTPUT);1 z" D8 h# N* d6 Q7 i
- // WIFI
/ ~- C9 ~1 P9 q+ H' I - WiFi.mode(WIFI_STA);7 h# Q" ]+ t% f4 b" B
- WiFi.hostname("Sparkle"); z9 V3 P# J# d7 @/ @
- WiFiMulti.addAP("wifi ssid", "wifi password");/ p6 G1 l( R6 U
- int tryNum = 15;
$ u+ Z8 o& v# |/ k7 w6 j( ~ - Serial.print("Connect WiFi");/ a- {5 i3 m# F5 J) T& {
- while (WiFiMulti.run() != WL_CONNECTED) {# a7 x9 I& D; ], x) C
- digitalWrite(2,0);
; ?8 }# T5 S# g# V& E4 I" O - delay(200);
" q6 k0 I+ w/ _7 c& E9 N2 | - digitalWrite(2,1);
+ F% R3 n0 [9 Q& I - delay(300);! T/ l* Q' Q! E6 W1 G8 E. L6 p
- Serial.print(".");$ Q& K6 {5 T! B0 d, j% u
- tryNum--;" q+ @/ R4 B1 N3 h2 R- e/ z
- if (tryNum == 0) {
* S# F6 o0 j! ]- d: Q3 t - // 1min
1 v% W% q% P0 S) |. U5 X; ^ - // ESP.deepSleep(60e6);3 k0 ~# M0 |) Q4 p
- ESP.deepSleep(0);& Y8 |) C# T2 N/ \8 r2 g, j U
- }* v: f' s, N5 I+ S- o
- }
. [. h; B0 B7 j8 f% L; u. q - Serial.print("\r\n");$ q+ G5 E* A% J# ~" N( c" S# T
- digitalWrite(2,1);
4 V% R- X2 r( I" r5 P - Serial.print("IP address : ");
4 W+ _9 ?) p3 l - Serial.println(WiFi.localIP());
, e# X* `6 [) b: F2 i - server.on("/", HTTP_GET, [](){/ f* q( N* s% q' E& U
- server.sendHeader("Connection", "close");0 j P- @' C0 h
- server.send(200, "text/html", serverIndex);
( x$ h" ?2 ] r9 f9 W7 J6 t! U - });, }' |1 ~% i* X& C' N" i
- server.on("/update", HTTP_POST, [](){6 S6 ?; G& I- P- \ v! F
- server.sendHeader("Connection", "close");+ _+ J- M% }( ]; D% x+ C0 O7 h
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");! z: b/ ~$ c p( {" |
- ESP.restart();
2 }1 b9 m/ Y* N/ R - },[](){
|2 A" K% u. V - HTTPUpload& upload = server.upload();
5 [7 `" `2 |3 t0 F4 t; z4 {0 ? - if(upload.status == UPLOAD_FILE_START){
[4 L$ g' x+ o - Serial.setDebugOutput(true);
: k' G* J2 f4 N5 h8 e& i! f9 w - Serial.printf("Update: %s\n", upload.filename.c_str());7 T. `5 |3 x" f9 _" f
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
7 o- b- \& M2 z6 R# U - if(!Update.begin(maxSketchSpace)){
) a& x1 v. ?( `2 g. S - Update.printError(Serial);; I2 @7 w; D% z8 S
- }
7 T4 v% O4 V3 [% a! Y$ \. U, M' ^ - } else if(upload.status == UPLOAD_FILE_WRITE){
2 ?* w, J; `6 r5 X - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){3 W- B6 c% l( r9 a1 M
- Update.printError(Serial);
, {% }- ]! M8 N/ x - }, M5 t' ?, D4 i( i
- } else if(upload.status == UPLOAD_FILE_END){
L Q/ d) G) p4 T# W | - if(Update.end(true)){, d: C9 a& e2 U3 @9 Y& b7 L1 @
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);% U& @3 g2 C6 a j/ Z
- } else {
, X( I# J9 [% y4 w - Update.printError(Serial);0 W, d7 c' U* ^6 s/ A8 Z
- }7 {& ] C8 l6 W' m- A
- Serial.setDebugOutput(false);3 y- G; V/ G. v/ Y. ^
- }) c: d, R& g, ~ Q* P: n" D4 v. `
- yield();& k8 M1 Y3 G( f K
- });
; F/ @# F$ V- i -
7 G* ]2 ? }1 W' ? - digitalWrite(2,0);
( o3 U7 @% i' u3 q l - mainAction();6 @$ ~; C( @, B
- if (digitalRead(0)){
; Q3 o, Q$ R2 _1 o3 O - ESP.deepSleep(0);9 Q5 K( B+ j* X9 S3 }* Z
- } else {
# ~/ J' Z- V& k9 _' { - server.begin();7 V5 Y, X' R# I4 N/ p4 B$ ^5 C2 ?/ M
- }
- r3 h' Q9 V2 c. s* E5 e - }8 E$ G& }" q# z$ K" \
- void loop() {5 F# Z7 G; E) u$ P- @
- server.handleClient();
. ~- m5 F/ F/ j4 Y7 _ - delay(1);9 @8 d$ L( v& l* o( V/ O
- }
& S% s6 @! e8 K# [& A - String doGet(String url){
/ t" l% J9 g: m5 ?7 @& j - if ((WiFiMulti.run() == WL_CONNECTED)) {0 D& V6 W* W8 a) }. ]/ A
- HTTPClient http;
9 l! F# E! o* Z8 C - Serial.println("[HTTP] begin...");8 v5 m4 s5 Q6 r% X
- if (url.startsWith("https")) {3 D' F/ H; M e r9 O- u! M4 h
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
- D$ j. `9 ~0 e6 H - } else {
5 d4 Y9 E) {2 C% g - http.begin(url); M; P7 b0 L) E0 ~
- }; m+ G# I3 c% z Z0 g. M: ]# n) W
- Serial.println("[HTTP] GET...");
! z( b; e+ Y! n. f+ w - int httpCode = http.GET();& [( h, C% } b
- if (httpCode > 0) {5 _! y/ N) k* v% J3 B+ Y5 B3 O' m; |
- Serial.printf("[HTTP] code: %d\n", httpCode);8 w! g+ M k: w5 e9 t4 H
- if (httpCode == HTTP_CODE_OK) {+ d; J2 I) @+ R- ~* a& x4 r, S
- String payload = http.getString();- Y$ X% {4 @/ z: W) m d
- Serial.println(payload);
7 S/ Z: P" I6 }+ t' J* L/ O - Serial.print("\r\n");+ p A: j) e" U& D( z) G, T
- return payload;
& ]: o$ `# s* S! y8 D4 b - }; _# R+ W( o5 R4 Y$ `7 e/ t
- } else {1 b# I$ F: {* e" e2 [4 h
- Serial.printf("[HTTP] GET... failed, error: %s\n",0 \' j2 U' I3 `: U9 g
- http.errorToString(httpCode).c_str());' P5 ~2 t) L' I5 ^) ?4 L
- }
( v( t7 H* L( T: c - http.end();. k5 o1 b; s8 O4 I+ r
- return "";1 n' f, f- R: S7 j
- } k* o( u9 B4 \( j
- }
& s. k. F7 \# F% Z0 p/ S- M - void mainAction() {
% R$ p& }9 m9 m7 d' D - // 发送请求
# _" A. r% m* {3 z6 r - doGet("http://google.cn");
& r" c2 ]- m. `6 f( C - }
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