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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)3 G4 K9 N7 M# Y4 i: l; n
- #include <ESP8266HTTPClient.h>3 K8 W/ G0 n8 q0 z4 ]
- #include <ESP8266WiFi.h>) L$ t+ z( g5 q% Q: T0 T
- #include <ESP8266WiFiMulti.h>
8 j' u8 P" ~9 {3 R - #include <ESP8266WebServer.h>4 m5 @. b2 q3 Q( t% W! H
- #include <arduino.h>
i, y% y3 J/ v) l - ESP8266WiFiMulti WiFiMulti;# A. d4 z4 c" W6 y7 |" I. o
- ESP8266WebServer server(80);4 E- B: w$ {5 Y6 D9 V, w
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";+ S" [& F; G( R6 d8 \0 K
- ADC_MODE(ADC_VCC);
) S, w' i; a$ r" M - void setup() {
. k& b& Q2 U# X: K8 m5 y5 H; c - Serial.begin(115200);$ D! q8 L1 r1 K A
- Serial.print("\r\n\n");
6 Y5 p; s' L/ N7 V. w- a6 y - pinMode(2,OUTPUT);
; N; n# ^: Y9 q$ f. y6 W( {5 }7 K6 Q - // WIFI) z! \4 h# Z1 w0 y0 b( B6 L
- WiFi.mode(WIFI_STA);) @5 n1 n9 {4 u* X8 {
- WiFi.hostname("Sparkle");+ F% k% U, j6 N2 g7 ?
- WiFiMulti.addAP("wifi ssid", "wifi password");
' J4 H1 n' I, p - int tryNum = 15;
: M9 m W5 l: @. I8 C8 E/ W0 W. b - Serial.print("Connect WiFi");
% a3 f6 i$ ?. K, ^1 F- C7 E - while (WiFiMulti.run() != WL_CONNECTED) {
2 X7 s, F1 P- r& A$ i) x3 a" ]9 ~; E2 S - digitalWrite(2,0);
0 g/ Z9 p2 Y5 H5 i2 C - delay(200);
$ ?! }2 {$ B# R8 t$ h3 g - digitalWrite(2,1);
$ f4 B) a7 Q% ~+ ~ - delay(300);
- p$ J# F% z7 c8 M2 O7 z7 X - Serial.print(".");
, I5 M9 w7 ^' H: ^ - tryNum--;
2 p0 n# E. I; c* y( A - if (tryNum == 0) {
% }. R( _, R4 C6 W! z - // 1min
' ~/ O* K) F+ Q$ c; o" S% Y- p: ^& I - // ESP.deepSleep(60e6);6 J9 [7 r ]/ y( p
- ESP.deepSleep(0);
# N& @: n5 R0 l# y3 P4 x- D - }6 B9 i. z0 y0 [( U% |+ n& s
- }
! Y/ m8 H) y) K; I - Serial.print("\r\n");
9 y; T+ a2 s* }* t. g( U: g2 k - digitalWrite(2,1);
9 \/ U; ~/ I. E9 {2 t# u - Serial.print("IP address : ");; j& w% F( e, q
- Serial.println(WiFi.localIP());
- _! }0 U3 L& _! d8 N u - server.on("/", HTTP_GET, [](){3 c& a9 W0 V8 n5 o/ I
- server.sendHeader("Connection", "close");
" T5 R7 p6 b5 U. C - server.send(200, "text/html", serverIndex);
$ L4 F2 l |* Z l: y6 G - });
# I8 a! a* P8 H4 f8 l! e% W& R2 u( I - server.on("/update", HTTP_POST, [](){$ `, _& X5 C [
- server.sendHeader("Connection", "close");( }, }- D3 a$ m! U2 d3 A, q4 a1 _
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
& `' N& R3 R C& y9 [ w - ESP.restart();
* f# N, \; a2 v9 i2 W$ \8 e4 A) b - },[](){7 T- @! \: t/ ^, b
- HTTPUpload& upload = server.upload();
* d+ s! u( _3 k# I+ `! g - if(upload.status == UPLOAD_FILE_START){: X1 v8 o2 m' j, @2 W- L8 L
- Serial.setDebugOutput(true);
3 X! j; }- T& k/ E8 \ - Serial.printf("Update: %s\n", upload.filename.c_str());4 K! t" H8 O9 \: ] G; d% g( n: D
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
1 w& u3 C7 a9 G - if(!Update.begin(maxSketchSpace)){/ ^ C: w5 {5 J2 Z5 E1 a* I* @
- Update.printError(Serial);
. C: H/ f4 Z) S - }' g% o4 U3 e9 v, O7 d1 A3 p% j
- } else if(upload.status == UPLOAD_FILE_WRITE){
& @% |- W H7 U, _4 P* @) f - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
}# L1 K: J* D& ^ - Update.printError(Serial);
8 j6 f# e" y% \7 J. C' Y% m - }6 ^$ d( z: N7 X6 R: P$ |, f7 ` ~1 O
- } else if(upload.status == UPLOAD_FILE_END){/ ^, F( G$ p2 o; J2 C
- if(Update.end(true)){1 | e- S9 X1 P7 ~" a
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);4 F$ W+ Z* L9 w" R! n* B0 C
- } else {0 z# L& B+ X8 F) W
- Update.printError(Serial);& ]* [+ j/ @; z( m J5 i F
- }
) u% `# y4 g" m. y- \6 v) J - Serial.setDebugOutput(false);
6 Y, X5 C4 @5 y1 ^6 Q* ] - }: T7 N8 j2 E. a7 K: m* s
- yield();
( u' Y# ?+ W, m2 w; z& g! w W" t - });5 y' U' l5 J: g- d8 ^; M! ~+ H
- 4 ~6 O/ `* C z0 y- q$ q2 h: A
- digitalWrite(2,0);3 w. M1 t& A/ Z; a* V
- mainAction();
- {7 c% L* W& D1 G/ i - if (digitalRead(0)){
/ t d( W8 O' r2 C2 Q - ESP.deepSleep(0);
9 Z- x7 ]0 |$ L; U, ?7 ]7 C - } else {3 X) {, F+ J# |1 D2 T
- server.begin();
/ R" R, V5 n) q3 k7 v# D - }: ~4 B/ y( M6 R
- }
: i% C4 c: w" I6 j& L, u c6 P - void loop() {: Z' R3 l" V, A5 u7 A f
- server.handleClient();
, Z8 d7 Z" t. P8 R - delay(1);
4 x2 G# z/ ?% D7 C! d% R - }
# q& u2 W. w4 p) D+ P - String doGet(String url){
6 i2 B% J. q; Q1 p- d - if ((WiFiMulti.run() == WL_CONNECTED)) {) d" U6 P) N' c {- j( {
- HTTPClient http;
; J/ N, l& w1 f2 ^- P8 o - Serial.println("[HTTP] begin...");* p" F# j9 _5 g4 \# o% ?3 c
- if (url.startsWith("https")) {
8 O E# P# ?% T6 }9 G! L! r - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");& }( H2 y2 d, u Q6 A
- } else {
0 y* H/ M" {: M, u3 | - http.begin(url);( D5 Z* L B2 w2 X& m, n* s
- } m7 K) y" A2 ~; b' |
- Serial.println("[HTTP] GET...");
! Q. r" B+ @0 W) c' Z0 a- U" p - int httpCode = http.GET();
^# d1 b0 `* E$ s6 @7 ^, w( G7 | - if (httpCode > 0) {
5 J% C) t. D+ W2 D- _9 t S( P6 d - Serial.printf("[HTTP] code: %d\n", httpCode);* Q3 W6 z/ P6 v% V2 h3 }
- if (httpCode == HTTP_CODE_OK) {
# X; {! n7 F4 \( T! Z- U - String payload = http.getString();4 M. k0 d% a5 Y5 I2 {. [ q
- Serial.println(payload);
6 N7 p1 Z( e s4 }1 K - Serial.print("\r\n");# ]) J: d$ t8 c+ p7 V8 U
- return payload;
. }6 q7 q8 }' u) D% \% a+ f; L' R - }0 Q7 O6 }, k5 ]6 w9 T5 }# a
- } else {" S' A5 m ^7 Z4 k+ O
- Serial.printf("[HTTP] GET... failed, error: %s\n",. C" B3 u: T q7 c D( D
- http.errorToString(httpCode).c_str());3 k5 w3 m% l j$ ?% m
- }2 t" V2 o: i' @0 a! T. K0 `
- http.end();
3 ^& g/ F1 w% E. f' b - return "";
2 \8 r% v7 V9 G6 u - }
* K' z$ o# u) h+ E9 j - }) u0 r! }3 ^. X% T
- void mainAction() {
' v. f5 K% p. l6 q' i - // 发送请求8 g4 Q9 A3 m2 X1 p, p, N6 e
- doGet("http://google.cn"); V* p. [+ u" U- I0 e& }
- }9 ?, o. R' q& k) C7 I. H: y4 P& i( ^
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