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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)' k9 B: k! h+ m/ e+ M: H! U8 G
- #include <ESP8266HTTPClient.h>
: Z: J: V' j8 d0 ~! L% R+ D - #include <ESP8266WiFi.h>: V9 K1 A o. x9 k! M4 @# D# c
- #include <ESP8266WiFiMulti.h>8 U& ], ]: B+ s( C
- #include <ESP8266WebServer.h>! {$ C# C. C9 W& Y2 |3 f/ V
- #include <arduino.h>
$ Y: f) M m# F9 G0 f7 b - ESP8266WiFiMulti WiFiMulti;0 v ]$ `) ~( l3 `
- ESP8266WebServer server(80);
! P+ l5 N+ I5 o% v# G J0 U - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>"; w/ C# H$ |4 @. C
- ADC_MODE(ADC_VCC);, p; v& x9 @7 d5 ?3 J0 Z/ Z
- void setup() {
' y9 z3 {$ \4 P3 K, v U6 ~ - Serial.begin(115200);
* |4 y; j' e; N2 L - Serial.print("\r\n\n");0 R. n4 }% z" ?) k9 T q0 b2 ?
- pinMode(2,OUTPUT);% _; P) ^6 P G/ b
- // WIFI& m6 D/ M3 \$ J5 }7 S
- WiFi.mode(WIFI_STA);
, P& q2 V' U9 a; g# W k- [9 t - WiFi.hostname("Sparkle");
: N2 ]. J7 L. J; ?% S - WiFiMulti.addAP("wifi ssid", "wifi password");. ~* z+ G' `3 `) }/ Q
- int tryNum = 15;- ?& n0 L" V7 p: }. A4 z, H
- Serial.print("Connect WiFi");: Q n& e" H$ e3 _
- while (WiFiMulti.run() != WL_CONNECTED) {
) {# b8 Z/ A8 x& V+ g2 g - digitalWrite(2,0);
1 ^) P1 x, ]- c% k' J/ \ - delay(200);
: t2 M& B( R: z' m5 T - digitalWrite(2,1);
3 V! b. {- h3 B& I, [$ h; y - delay(300);
5 d4 y5 G0 s3 i - Serial.print(".");
1 Z2 X( k1 d: K% y3 L3 ^5 I - tryNum--;
+ E: b5 y7 p4 \& {' B& T7 S - if (tryNum == 0) {
7 A" l" p1 a# a( M) b, h - // 1min
, p7 r Q, D% h( ]" S! a/ w W5 b - // ESP.deepSleep(60e6);/ @8 f. s7 \* P# m0 l- t
- ESP.deepSleep(0);9 _! T, e% f5 e' y" O
- }
1 Y% E+ @4 J( L( V) ~ - }' W/ B* Y% \, G
- Serial.print("\r\n");
, f! W# c6 m6 j! \# p. N+ C - digitalWrite(2,1);
' t3 r! w; E$ q* |) z - Serial.print("IP address : ");
% \1 b6 n0 [9 @# k5 @' f, ] - Serial.println(WiFi.localIP());% H6 d# M+ e1 C; k
- server.on("/", HTTP_GET, [](){8 y7 s$ ~4 b o4 ~8 m
- server.sendHeader("Connection", "close");
% f: z; e/ v: K' D - server.send(200, "text/html", serverIndex);* ~, O5 u# j1 G6 w% G
- });
% G5 b( R& d7 p; x" ~. c) W - server.on("/update", HTTP_POST, [](){1 [8 g9 O, n! V
- server.sendHeader("Connection", "close");6 N: e4 f- ~% A3 Z/ |8 M9 L
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");# ~- i& i2 S4 v
- ESP.restart(); d {* s; i7 j% c9 x1 \# E( s
- },[](){6 F8 L. j: i& B; P( _: o6 \
- HTTPUpload& upload = server.upload();4 ~3 ^. O- o t5 s z( }
- if(upload.status == UPLOAD_FILE_START){
. B7 r: V" ^) P6 M; O - Serial.setDebugOutput(true);0 R, O- r1 F, q* s
- Serial.printf("Update: %s\n", upload.filename.c_str());
" F4 N- P0 W, v( } - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;4 J0 |) ~8 [9 o& l+ w' o: w) n8 c
- if(!Update.begin(maxSketchSpace)){+ I$ C; W: V$ w* J' Z: ?' d
- Update.printError(Serial);
3 D5 @% E. L! h; o- u3 L - }. y0 i; y8 U( @. M: O
- } else if(upload.status == UPLOAD_FILE_WRITE){
* k" C' R4 {8 k. M' g# t - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){8 x9 T: i8 `2 V3 ` k- `/ |& o& M
- Update.printError(Serial);
- v; ]6 R3 P% x, ^ - }
" l% C% ]" ~5 ] - } else if(upload.status == UPLOAD_FILE_END){
K( A7 E$ T& A2 I - if(Update.end(true)){3 |1 ]5 S2 k, m- @+ y p1 K+ Y7 m
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
# x m" k& B8 b- L) X - } else {" p( I+ ^# S4 L2 ?( q1 L5 _, t
- Update.printError(Serial);
; S0 h' O0 }7 }9 t# M1 {* t - }. t: q% ^" |# H' X* Y
- Serial.setDebugOutput(false);
2 j) J) B( s2 X; y - }; K- Y- B! O6 b: @$ i5 r
- yield();) U6 ?% t& Y% p# U3 E4 t& Z4 z
- });. `' S# B5 a% D! ?% v
-
6 t% L8 { `9 i5 f, B: b - digitalWrite(2,0);
' ]3 t+ t! i) C- B' g" Q - mainAction();4 G, f1 {+ T/ S5 l0 J4 }" O
- if (digitalRead(0)){4 Z0 x5 b0 a* ]; Y
- ESP.deepSleep(0);. V* ~' a7 S/ n: k! D
- } else {
$ r/ |2 y+ y8 } - server.begin();: E/ m Q0 r; o) a( J
- }: r5 J8 U3 q; E2 |) M: ]3 V+ ?( z8 X
- }
5 ?8 c2 ]$ x4 \ - void loop() {! L6 p' E( E, s) C; p* N+ A
- server.handleClient();( e; Z- o3 C) D9 ]
- delay(1);
# h: A( @* P% X3 v) E2 p' F - }
1 I9 F; X" i; Y- N6 Q- X - String doGet(String url){. S8 o r" L( a" [0 a1 ^
- if ((WiFiMulti.run() == WL_CONNECTED)) {
4 x- R4 J- ?7 V: e2 Y3 a$ u. b - HTTPClient http;5 M' t# B, z8 ?3 V. V. G1 J
- Serial.println("[HTTP] begin...");
) H. [2 T7 B8 ], U7 J" a - if (url.startsWith("https")) {" i: J1 C5 c/ L6 h% e. v1 d: F
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");8 b$ u1 T8 O2 K! M) e5 b" v/ ~
- } else {
. D6 S, R& f* K( [( f; A% \3 h - http.begin(url);
4 C6 d7 c4 F4 d; i: d - }
2 B2 V( E. D X' J - Serial.println("[HTTP] GET...");- r$ m0 F0 r: b {6 I7 J: h
- int httpCode = http.GET();
3 W* K% [* _4 P" b3 \$ v0 E' L/ ^5 y - if (httpCode > 0) {
# P) a% g8 x# b0 P2 T - Serial.printf("[HTTP] code: %d\n", httpCode);
7 l6 p9 l9 K4 E8 e/ _8 U - if (httpCode == HTTP_CODE_OK) {8 }" [9 v' P% c5 h( S" j; J
- String payload = http.getString();8 s! b1 e$ u; @+ U- `* s
- Serial.println(payload);: \5 G3 }* t" n& D
- Serial.print("\r\n");' f/ O7 ]3 n# n! [+ c& M. f
- return payload;
7 @# ?9 y0 @# [- Y( \ - }
8 m* k7 e8 M5 D. h5 L - } else {
+ Z3 Q7 ]5 b( n. ~' d! E - Serial.printf("[HTTP] GET... failed, error: %s\n",4 [* x6 v9 {0 t. B) L+ i
- http.errorToString(httpCode).c_str());3 X. c% F3 T* Q0 \% k" e* O6 Y
- }# t! p0 N! m5 e7 Y
- http.end();
& T7 Q4 g' ]: ]3 Y, D0 ]& r0 y - return "";
/ P W3 O4 b" c8 u& w. z6 M - }
3 l K- ~2 s' b# |1 j% I# s - }
* p5 ~7 H! |& z2 a5 e" H' i" x - void mainAction() { Y- e) C0 V. W E1 v8 l
- // 发送请求
. x t J$ I) _9 K8 m' m - doGet("http://google.cn");/ k1 T/ `; s, @4 f0 d
- }. h5 J2 D0 _0 o+ U4 ]" q
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