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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)$ p. \% s$ V) I3 @, m; O8 e
- #include <ESP8266HTTPClient.h>
- ?1 ]8 N( x6 d0 Q9 @8 u' ~ - #include <ESP8266WiFi.h>
: u: v1 h+ o5 P! r- c; V - #include <ESP8266WiFiMulti.h>
$ R' D' q8 ?/ a' W6 y - #include <ESP8266WebServer.h>
4 Z V7 L) f% f; H4 s4 Y2 u& o - #include <arduino.h>
, L4 b' l+ F6 I6 H9 P o# C - ESP8266WiFiMulti WiFiMulti;
4 P: e% q0 N5 T* c - ESP8266WebServer server(80);
: Z" o! q! a6 A8 w- `+ h- o - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";3 G$ S: L# A# S" a. e0 V
- ADC_MODE(ADC_VCC);' G6 L2 ^( Q2 U8 D4 y
- void setup() {
8 w8 L6 F" D& C - Serial.begin(115200);
" Q! C- U" n. D - Serial.print("\r\n\n");" t/ n+ U! c/ N+ M' S4 F0 R
- pinMode(2,OUTPUT);
6 u2 p& A2 ]; X - // WIFI
. @$ s/ r) n0 t) J E$ t1 v' _ - WiFi.mode(WIFI_STA);
. @" D7 ]1 ~* l - WiFi.hostname("Sparkle");
" O6 R T" H1 y/ I5 ?* ?! |3 z - WiFiMulti.addAP("wifi ssid", "wifi password");7 x+ y+ q+ x1 `0 i
- int tryNum = 15;. [. N! {5 f) `
- Serial.print("Connect WiFi");
7 ~0 `8 g& N+ E$ w2 B- R3 ^ - while (WiFiMulti.run() != WL_CONNECTED) {/ }. @5 D8 K* K
- digitalWrite(2,0);& j0 _* b+ A* Y; g7 [# w: K
- delay(200);6 Y7 J7 S1 Y$ p5 t) q
- digitalWrite(2,1);
3 |. p c; ]# x - delay(300);. v1 X T* T- `+ {$ G) ~5 c; J# n
- Serial.print(".");1 c+ u! | l: ^. F; h, Q
- tryNum--;( g# y6 l% y9 y: s
- if (tryNum == 0) {# b5 C8 j4 `8 Y2 R. N$ k( g& [, W
- // 1min
5 ]" I, O; W6 p& n, X: I0 w d - // ESP.deepSleep(60e6);
) P2 D3 Q6 t+ k9 k4 i. J - ESP.deepSleep(0);
% _8 p5 O" k. U3 a$ B/ J4 s& Y - }- ?2 h, p% Y0 F) J
- }
' w9 ]9 t4 @+ a; g8 |8 K0 P9 K$ U - Serial.print("\r\n");
" k" `" W6 |9 V8 E - digitalWrite(2,1);" A6 V0 d! [; D0 K% U& W6 I1 [5 x# E5 |
- Serial.print("IP address : ");* a9 H X: d1 t+ A2 d7 e
- Serial.println(WiFi.localIP());, s/ s& g, u0 U0 W
- server.on("/", HTTP_GET, [](){
" O4 w. Q5 q, O+ R5 s - server.sendHeader("Connection", "close");
0 d5 A' W' V& y! Z0 ~- \ - server.send(200, "text/html", serverIndex);) V# H$ J4 ]- T( _
- });
) r; |5 l1 U w) s5 [: }( a - server.on("/update", HTTP_POST, [](){, x# L5 N9 [4 r$ i+ @
- server.sendHeader("Connection", "close");3 Y/ p& ~: @; M
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
. ?( [6 \6 p n - ESP.restart();
, Z* U* q+ I, O1 K# c2 \) ]. `: l - },[](){) G: ]/ ^9 p; v: H
- HTTPUpload& upload = server.upload();
4 a* i0 h+ \6 ? v - if(upload.status == UPLOAD_FILE_START){
% H; k2 \1 U0 _ c+ b - Serial.setDebugOutput(true);5 w( p0 ? o4 p v; H( V0 {( f. a7 W+ [
- Serial.printf("Update: %s\n", upload.filename.c_str());
6 D# Y. M7 t4 g$ f) _; W - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;# u8 _) Z8 r) b: X) `1 e
- if(!Update.begin(maxSketchSpace)){
! Q+ I: `9 v8 `. I A6 | - Update.printError(Serial);
% s* }& x4 |+ {. D- l% b - }3 l. H i6 L0 a% A5 y& T
- } else if(upload.status == UPLOAD_FILE_WRITE){, n6 z, a; m6 E/ x4 w. p
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
6 |9 t2 K! ?* p# f8 ` - Update.printError(Serial);
9 B6 x+ B6 }* |9 n - }
8 \5 H ^* A8 U) q - } else if(upload.status == UPLOAD_FILE_END){9 W/ Y' P( i4 H: f1 ~; k
- if(Update.end(true)){, c1 R7 D2 c- X
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
) u. C b3 @- |6 Z B - } else {. F" R& Q& l3 p0 K7 m9 X; a( ?
- Update.printError(Serial);
% [' i: o0 ^$ X- A0 t% y+ d2 O - }, G' J+ j! u2 S# G1 Q
- Serial.setDebugOutput(false);' R# Z7 z: K1 Q, w4 j) K* O
- }
" p) u Z* N# x9 h% a; l" V - yield();
5 m5 G+ ~) ^0 o5 k; ^# k - });; i' q+ ^& t- j9 ]# }
- + q0 ~( ]3 `, W
- digitalWrite(2,0);4 G$ }) ^. }8 D1 _: T
- mainAction();
9 l/ B/ C+ f: Z4 y, f - if (digitalRead(0)){
) m! ~3 K0 J8 U% B$ F1 o: _$ W - ESP.deepSleep(0);( n" S( j6 T9 F
- } else {
& I& n& g2 r; N+ k - server.begin();
x# _. x" |; ]" o - }- [3 f* C- @0 l/ I
- }
2 s0 _7 W2 F: H4 [! |# Y! | - void loop() {
8 h; e( d6 ]5 N/ G% \2 B$ S' ? - server.handleClient();
4 Y9 c. Z. k- p" Y5 c# F - delay(1);9 B# q1 W" ?- y8 W9 C/ b( G0 a
- }
* r4 c4 L' E @( {! ?1 H; G; D - String doGet(String url){
3 ^& ^* W: d1 E' ?, g' g$ v% K; X - if ((WiFiMulti.run() == WL_CONNECTED)) {
# G/ n0 ?3 p& z. d5 Q2 I. Q - HTTPClient http;# x8 {- S! }% L! K
- Serial.println("[HTTP] begin...");, X# L# \: f8 c6 T$ V T
- if (url.startsWith("https")) {
! B7 n* |# }5 E, I( ] u - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");2 t& v6 n( z* F+ E" H2 k
- } else {8 z( }* Q2 w; b/ P p& f. M
- http.begin(url);
. V# A, j( u* D+ s) _) g3 [ - }4 W5 k- u" h, P& X% B
- Serial.println("[HTTP] GET...");
- B3 p& x M/ H- k$ a - int httpCode = http.GET();
6 g4 U; O; |& u/ j/ y. | u - if (httpCode > 0) {
/ f* D* M2 J/ b8 o0 ~ - Serial.printf("[HTTP] code: %d\n", httpCode);+ R6 f2 x! L6 j9 }. z
- if (httpCode == HTTP_CODE_OK) {
( L1 Z. P2 @; b) q - String payload = http.getString();" X0 Q- Y( ?/ l7 G; x5 z
- Serial.println(payload);
3 Y( n! P" K2 C) D* D - Serial.print("\r\n");
% O0 ]6 ]5 f: {( ^3 O - return payload;
; K' |. f3 _, m( m - }
1 s" d+ S* Z7 ~; B/ W! U1 s - } else {
! |2 y& E% F6 r3 j7 t, ` - Serial.printf("[HTTP] GET... failed, error: %s\n",
) A z9 F' ^- T6 p; U' _# n - http.errorToString(httpCode).c_str());& b- o$ e) H; S* M+ a) Q- R
- }
& T3 `' X- q3 \( Y' D - http.end();0 J7 X0 b) o5 l1 E! R" k
- return "";
5 V/ a* V' U& D4 c m: E: G* j( o - }, d4 _/ S) g- Z1 l+ V, E- L
- }% S7 A5 A' a: S2 q% l+ r3 R
- void mainAction() {, e* I9 Q) k- M( h. M1 b% Q* Z7 c
- // 发送请求
- R. m- O3 C, P0 P - doGet("http://google.cn");
) E0 ^* Q8 E% |2 y - }7 |# B) j1 P% b& d* D
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