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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)
% V4 {7 _, G: B8 L+ B3 Z- #include <ESP8266HTTPClient.h>' S: N: j6 X3 O: t+ \/ M
- #include <ESP8266WiFi.h>* B4 K! e$ g* |
- #include <ESP8266WiFiMulti.h>
. C( `! f/ m" l9 l - #include <ESP8266WebServer.h>
8 G7 P" A8 q, S+ a+ {- Q - #include <arduino.h>0 d( W8 u7 E0 v* ]! b
- ESP8266WiFiMulti WiFiMulti;' y; z- i0 |8 r' W+ D
- ESP8266WebServer server(80);
' q( q. A4 ]7 V; x - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";- p7 A. K; t( }" G4 L0 d; k
- ADC_MODE(ADC_VCC);
1 y+ x3 u; o _7 Q8 z5 n* ~( A - void setup() {
' J/ b+ {- M/ ^+ }5 G2 h' s - Serial.begin(115200);
) v a' b+ _, F& e' `, [ - Serial.print("\r\n\n");8 E9 i- h9 k. A" N9 q# }
- pinMode(2,OUTPUT);" k- ?7 w0 c1 w! S; Y: t' u0 n! n/ g
- // WIFI3 r" W+ p6 c [; P
- WiFi.mode(WIFI_STA);$ c0 Q2 s% ?* y3 `$ Q# z2 e
- WiFi.hostname("Sparkle");
: c$ N) V: s5 w0 R - WiFiMulti.addAP("wifi ssid", "wifi password");* s& u: g7 t5 M x! E$ B9 J
- int tryNum = 15;3 C9 z6 i3 o) ?) o7 V
- Serial.print("Connect WiFi");
- A) L' u W5 f X& l2 ~" x - while (WiFiMulti.run() != WL_CONNECTED) {- Z; Z! R1 J( z; F
- digitalWrite(2,0);6 {- Y) O; F* A% w
- delay(200);4 @- ]) @" H0 O6 Z* D5 e+ b7 q
- digitalWrite(2,1);
4 f: z; x$ k1 \4 Z7 a/ O - delay(300);
7 F( f" A1 \7 [8 m: ` - Serial.print(".");
" G3 j5 ] v3 a3 F - tryNum--;1 o, F' S$ x7 a9 W
- if (tryNum == 0) {' I9 w( B x* O1 ^3 o0 T
- // 1min! |5 Q4 f) G, ~) O5 F8 r' W
- // ESP.deepSleep(60e6);
, }2 @% |7 B+ X4 B6 g4 s - ESP.deepSleep(0);/ j' s- `- }- T1 Z9 k( _9 Q
- }& e: |) T) ~! ^* z
- }- Z; T7 p) q# o2 C9 D3 G
- Serial.print("\r\n");7 ?7 k; ^6 X5 F0 j8 r. s/ f
- digitalWrite(2,1);% M! r* \+ o) c% V
- Serial.print("IP address : ");
3 G& n6 s% V' d" K, H - Serial.println(WiFi.localIP());
5 Z% y2 q& c* l) Y3 b - server.on("/", HTTP_GET, [](){" a2 |- m0 [ |# n4 s8 T& P- M
- server.sendHeader("Connection", "close");# n/ l# \) \9 X+ @/ }
- server.send(200, "text/html", serverIndex);
, \9 _+ r8 l J$ L+ {2 G - });$ E! a- m( B' F, `
- server.on("/update", HTTP_POST, [](){% s! g' R0 H2 _( ^1 \" b$ K
- server.sendHeader("Connection", "close");7 C6 @4 E- ]1 ]# m! j3 h# S, B
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");$ Z1 E3 G" M4 v
- ESP.restart();
}( H9 d* {# b5 l( c2 Z - },[](){
! ~: P3 ]! A; B$ q9 S - HTTPUpload& upload = server.upload();# }- ~# }( V0 w
- if(upload.status == UPLOAD_FILE_START){8 W3 y6 f9 Q& ]3 d3 `* P
- Serial.setDebugOutput(true);
7 `; W$ C& L* \; y4 l - Serial.printf("Update: %s\n", upload.filename.c_str());
$ b+ c- W5 V/ y1 f: S0 L2 N6 } - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
; T* f; V: |) I; A& |# |9 h - if(!Update.begin(maxSketchSpace)){5 C: N+ b6 r/ k) R3 \ _* [
- Update.printError(Serial);6 y+ }* |: N- r- a' M
- }: y# g" g4 f6 G/ x8 \3 {3 ?& y
- } else if(upload.status == UPLOAD_FILE_WRITE){' V9 h% r/ V- o: G. e3 Z( ], t( T- f* _3 D) \
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){: m* w% o, V+ f) ^
- Update.printError(Serial);3 |; F0 M& T" j" b. `/ g
- }0 S2 y" _1 _ o" m
- } else if(upload.status == UPLOAD_FILE_END){# ?+ s$ \" D7 a
- if(Update.end(true)){
0 l% g; ~1 y, X+ s3 q - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
' K. e, v7 i# `* ~* ]: n - } else {% @3 a( l, N& c) e1 g
- Update.printError(Serial);' y9 I" [1 H3 K6 r; E. ]8 H
- }# X: U9 Y2 T1 {1 J; Z
- Serial.setDebugOutput(false);% ^! O% f5 A# q% h& c. r2 b% q
- }
7 c. t$ P. e( w( C - yield();
4 x9 [ k: c4 s% z; v% } - });
' ~+ j" o6 R0 h- Q X - F( a6 T; C; v0 D- S/ T
- digitalWrite(2,0); E" q: l4 X% p! x" }- A0 t1 u) c! u
- mainAction();. O- {$ G) a, T$ N7 h8 D* F
- if (digitalRead(0)){7 j& m2 }$ k# m6 Y. ]
- ESP.deepSleep(0);& R2 M" _! w$ Q1 I" A+ H
- } else {
, J T8 j" F# R9 C) M) `4 Z - server.begin();1 }: x+ m/ l- t! r4 O& W" n* h6 p
- }
3 b2 {, `. n; H- R1 b - }4 S3 X9 F, u* x. O2 v0 D
- void loop() {' n! h% B" d& y* [& a0 Y8 e7 Z% S
- server.handleClient();
) j4 `) R. B4 Q$ k, l - delay(1);
% b+ ]% A2 F6 n2 T+ r - }
8 n2 v- V3 D) B. f; I - String doGet(String url){+ R" h% @: q; D; ?: ?4 P S0 _
- if ((WiFiMulti.run() == WL_CONNECTED)) {
4 x# g2 r( p6 T3 f9 y& \ - HTTPClient http;
8 ]- \- |; a; u) }8 a - Serial.println("[HTTP] begin...");9 i& n9 o* a+ Y# k v
- if (url.startsWith("https")) {1 L* x% U' R2 ?4 c4 \% W
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
# U! v7 ^" E% i3 [/ \. ~" T& n( k - } else {
! p7 t4 i- p+ |# S1 `, h9 m1 M - http.begin(url);( n ^$ M5 N; u+ @+ a2 n+ n( j% s
- }* g0 I) o3 s' R: m. u; B. u
- Serial.println("[HTTP] GET...");, C# r( S6 ^; b
- int httpCode = http.GET();
3 h6 K, ?9 {/ R6 n# V! y) C - if (httpCode > 0) {
4 R' f0 U; V' V& ^; K - Serial.printf("[HTTP] code: %d\n", httpCode);# e; f' b, x0 `( |
- if (httpCode == HTTP_CODE_OK) {! U% A% Y! P5 L! K
- String payload = http.getString();
' N. {) I7 `3 s# a& Z7 j - Serial.println(payload);+ k( ^3 G: _, C4 L! d! j2 _$ z& }2 Z
- Serial.print("\r\n");
F! x! X" S ]4 U* N) ^! J! A - return payload;8 b3 v6 A6 W* a" ]* e
- }) b) _ f9 L8 d. b# \, ^
- } else {
! a: d5 R2 x5 F7 [( \ - Serial.printf("[HTTP] GET... failed, error: %s\n",
. c3 ?7 R$ v- K: m) m9 d6 q - http.errorToString(httpCode).c_str());
0 }4 |: ^3 [7 r9 F7 J- x - }
) @0 R# M; ?0 ^$ ^7 U3 i' D - http.end();
% L2 L* E7 N }, {9 D - return "";
- m) h* P7 H+ q }$ P% H - }
2 ]) Z+ t! k; ?3 B5 A3 n- K - }; l5 m) w- C6 y
- void mainAction() {# q5 _; _+ H: A
- // 发送请求5 A+ }4 k7 _! Z
- doGet("http://google.cn");
) d0 q$ M0 n2 \' u; P7 y - }
6 q* y5 U- u" z
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