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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)* j2 P5 R) J7 m1 h
- #include <ESP8266HTTPClient.h># J% t& C- O: f5 g3 ~3 \ q4 _
- #include <ESP8266WiFi.h>
+ ^2 o" V# }4 ~0 J/ M& p - #include <ESP8266WiFiMulti.h>
% V! h4 l, d/ A6 B1 ` - #include <ESP8266WebServer.h>
. \# J6 Z) o& i3 g4 j' M - #include <arduino.h>8 \8 H: h! o& R' P* ^# e5 P
- ESP8266WiFiMulti WiFiMulti;
$ W' s9 k% d' \ - ESP8266WebServer server(80);5 h- n; Y1 ^! J) y8 v4 F+ X+ B
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
# Z$ A! L. V4 Q% R. X3 Y, s - ADC_MODE(ADC_VCC);; M7 n+ e/ s7 r( j
- void setup() {4 v D. [" D+ `. f
- Serial.begin(115200);
. r D& j: u& T4 A - Serial.print("\r\n\n");
+ V6 y+ N. j/ [4 `2 L" i - pinMode(2,OUTPUT);
8 s1 d+ m. \& T0 P! b - // WIFI+ a& D% p, \( X1 F4 i: a
- WiFi.mode(WIFI_STA);& t1 F0 g% h6 w, U
- WiFi.hostname("Sparkle");6 W: E0 i6 _7 ]' @# u
- WiFiMulti.addAP("wifi ssid", "wifi password");1 S% N- I( |. j( ]" j9 M* v( X
- int tryNum = 15;
" N- y+ F6 p- G0 L, ^' R - Serial.print("Connect WiFi");& V. q) J' F: ^
- while (WiFiMulti.run() != WL_CONNECTED) {/ V/ r9 e, O- Q" @
- digitalWrite(2,0);4 I0 {" z" _6 o; l* q$ r
- delay(200);
! A0 d* C2 ^4 _, n# c: [5 \ - digitalWrite(2,1);
4 y2 _( Z [& ]! [, y/ M- x - delay(300);
/ A5 V, I0 q# ?& V/ j - Serial.print(".");' l" k! Q/ }& M' u
- tryNum--; W# T1 m8 y" R
- if (tryNum == 0) {
( M! c- }7 r% N( e/ w; L/ g w - // 1min
3 d) o8 q, c- M" D - // ESP.deepSleep(60e6);# v2 i, }& O7 l; `) ~
- ESP.deepSleep(0);2 A" B! W: i% P+ ~" w
- }2 V9 N/ S# ]4 h
- }
- j& h% O: c- T, n0 T - Serial.print("\r\n");
) g/ r I& r& A* `9 T1 R - digitalWrite(2,1);
+ G) u) S' L* a4 O W- X! j - Serial.print("IP address : ");
2 p% z% ~& P! d6 A; s* |5 V' g3 i - Serial.println(WiFi.localIP());
+ j* k# k1 l- s$ C! }8 _5 J8 s - server.on("/", HTTP_GET, [](){! d8 ^8 m, F5 O# q5 w5 ? d
- server.sendHeader("Connection", "close");
( e6 j& Z$ x9 ?$ b2 h3 q) e/ b - server.send(200, "text/html", serverIndex);
) t1 L8 f* [! ^% c4 y - });5 E9 H! d9 Z( ^8 z( S% E
- server.on("/update", HTTP_POST, [](){) o3 |/ K4 F/ ?- \; I K$ V
- server.sendHeader("Connection", "close");2 s |1 t! C) g4 _7 d7 }6 E
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");& L) i3 g* D/ M+ y% P
- ESP.restart();
" x1 D1 f' Z) h! `4 h+ j8 [0 e - },[](){
) y( \" ^' w, b( ]: @% k( ~ - HTTPUpload& upload = server.upload();3 t6 s6 g* R8 ?- ~
- if(upload.status == UPLOAD_FILE_START){7 L/ w) ~8 Q$ k3 R! r# i p
- Serial.setDebugOutput(true);
# ?( e. u* E9 ^% ` - Serial.printf("Update: %s\n", upload.filename.c_str());& r/ G! }+ W/ y0 M8 O+ I6 Y2 U
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;/ V; G7 G5 [! ?' X
- if(!Update.begin(maxSketchSpace)){' ]5 \8 z2 q+ J+ K$ D8 j+ C! Q
- Update.printError(Serial);* O& L1 S2 o& ]3 Y# p
- }
2 l( k! s: ] r$ b4 P( q8 p - } else if(upload.status == UPLOAD_FILE_WRITE){
& Q+ B% i& m0 X- \1 w. v" ?6 i - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){( t7 z& x0 H H( I$ f. x) y# O3 N
- Update.printError(Serial);+ E7 k, K } ]
- }
1 ~' g, L! ?, N* y& | - } else if(upload.status == UPLOAD_FILE_END){
! y' M: f% j) [2 O8 M3 I - if(Update.end(true)){% |# F# o4 R( I+ ]
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
7 c/ o" I9 U. _7 I - } else {
; Z8 h: X9 C. h- j. u8 m - Update.printError(Serial);. `4 P: K; H: b& [3 \
- }, M+ W- l. a# m, w: P9 K s0 v' ^
- Serial.setDebugOutput(false);
8 j, d4 i" Y% L3 _3 n - }
! J( t# Q' X" x- K+ O t: I- o - yield();1 k9 Y A" k6 L* E- ^# M8 M! o
- });, Y' V- x8 D2 @, {* Q& W( r7 d1 G
- 1 l( d& p7 f% u4 y6 I1 R4 Q2 l! Y" P
- digitalWrite(2,0);
& l; @; }& Y5 ?0 b+ O - mainAction();
5 W& p6 n6 ?7 q) y - if (digitalRead(0)){+ B0 Y0 B" b+ i
- ESP.deepSleep(0);
+ \3 @1 y% [: l+ Z3 v4 w: k - } else {
( C, V! u. O9 w- f( U3 G - server.begin();! Y, b0 s$ S; u X, B, x3 l! ]- i* u
- }
6 y0 b6 ^6 ^$ z8 n! [ - }* u6 ^* d. U/ x; d3 t: O* m" c
- void loop() {4 ?7 @& R+ j4 a2 H/ {8 q6 `/ `2 i
- server.handleClient();5 U" n8 ^+ _, z6 Y. j! G
- delay(1);
; |. w* F& {& \+ x/ D$ u$ I0 b1 Z - }
8 A! C5 Y2 Q ?$ E - String doGet(String url){7 r- L" ], P# Q- R) N
- if ((WiFiMulti.run() == WL_CONNECTED)) {! n# I' E& @3 y1 Z) V8 a
- HTTPClient http;
' b' d" H9 J& K5 l7 r - Serial.println("[HTTP] begin...");
; H! a0 `+ x1 j# ~5 _ - if (url.startsWith("https")) {+ [7 C& ~/ B# |6 M- g1 }7 |% |
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");6 g- [- g' A, `% {8 U
- } else {
' p5 R7 q8 ~- K5 y - http.begin(url);
6 w7 f7 d9 p& J; c6 l% G4 v% O# A - }
' M4 |- L4 U) C: S2 u - Serial.println("[HTTP] GET...");$ F! z0 O- {+ X& r
- int httpCode = http.GET();
6 s; G, Y) D2 J* d - if (httpCode > 0) {
% l* K9 j: u2 \! S8 M9 l% w - Serial.printf("[HTTP] code: %d\n", httpCode);
2 v8 ?# l9 q) g; s8 f" K) e- U4 B - if (httpCode == HTTP_CODE_OK) {/ [/ {" S( Q3 \( v
- String payload = http.getString();
; D8 S! u1 d9 Q! f0 ^( @3 ]8 \( M - Serial.println(payload);
7 Y( W" h) Q; \4 e8 P4 c) T - Serial.print("\r\n");
4 @. T1 o; n$ h - return payload;
% H; E; r, n. k i, A" E - }
7 ~) t5 g% m% I - } else {; X# j6 t! @. D; a, W: J& A
- Serial.printf("[HTTP] GET... failed, error: %s\n",8 K0 ?( s6 y* m( y3 e: _% q
- http.errorToString(httpCode).c_str());' Y7 S* g7 e- A! u. v j, n
- }
7 d, a: q }& G# P1 K* P - http.end(); h' w7 q8 d2 E0 a/ @
- return "";. w- s4 P! v4 ]4 O! d2 O
- }
+ H, C. V1 v! I$ {2 h2 W3 } - }
7 T7 D' }9 o3 J3 F - void mainAction() {. Y# m/ R9 w) Q4 Y8 ^) S( i& _4 o
- // 发送请求 _* a% {' I: R" k
- doGet("http://google.cn");
; v% c! b9 I7 R" ^: k8 G) ^) m - }
& ?: [( z. P6 G- g: S+ f
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