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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)& Y/ I: L* V# Q; o6 e4 J
- #include <ESP8266HTTPClient.h>
+ |# O2 x) K3 t( _& Z4 e, k$ F9 E, a - #include <ESP8266WiFi.h>
* {- R( o% Z, u: y: n$ \6 h. ^ - #include <ESP8266WiFiMulti.h>2 U# e! m% x* J/ I! }. O7 k) }' h2 Q
- #include <ESP8266WebServer.h>$ K& v2 R& G% M+ g. J
- #include <arduino.h>( I8 G# t& g ?5 y' n
- ESP8266WiFiMulti WiFiMulti;
% f8 e' n4 N- \! u" { - ESP8266WebServer server(80);1 l) [) A/ y" M" O8 U
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
, x+ Z6 b2 E$ R m4 h5 \0 K1 } - ADC_MODE(ADC_VCC);1 Q& _: V D$ n( `% T- X
- void setup() {0 S$ u8 g$ J# }/ ~4 O6 \
- Serial.begin(115200);
& P9 k& b3 F2 F+ k; N- \ - Serial.print("\r\n\n");
6 }# i9 Y7 N/ ]+ O - pinMode(2,OUTPUT); J0 @5 r, Z4 Z% l& N
- // WIFI' A1 P* | }/ X
- WiFi.mode(WIFI_STA);5 w! K: h5 K' `4 d: p
- WiFi.hostname("Sparkle");
# y9 H2 z: o4 z' }. y, Z8 F1 H - WiFiMulti.addAP("wifi ssid", "wifi password");0 R& u6 e/ b* J
- int tryNum = 15;* P* u" M9 n# P8 l b
- Serial.print("Connect WiFi");
8 G# T9 V; s# T9 m/ `6 U8 w3 U. R9 R - while (WiFiMulti.run() != WL_CONNECTED) {$ Q* y% A8 w5 k: |
- digitalWrite(2,0);' `: t4 L" G: m7 T$ f
- delay(200); y* ?6 R5 \: d3 z e& E6 f
- digitalWrite(2,1);/ i/ H. t7 `5 j- n9 A# m
- delay(300);/ n. I) T# t9 C3 l c
- Serial.print(".");
) C- w7 f H8 b7 F2 c1 L - tryNum--;: |3 j! L2 }% M, }. C
- if (tryNum == 0) {3 f4 [5 r, N/ L/ l" l7 b+ r
- // 1min# O$ @8 f& N" q3 }
- // ESP.deepSleep(60e6);
) W- @2 J% o( W5 b+ r - ESP.deepSleep(0);
a( C( s6 n4 b6 i - }! v0 ~: C4 T5 u6 _0 r
- }: P" T2 l/ X; b; O
- Serial.print("\r\n");
$ L/ K+ {* x9 _8 m - digitalWrite(2,1);
% R4 x1 ]0 p! N" ~8 J8 T - Serial.print("IP address : ");; K6 v* y# o7 }, d. d
- Serial.println(WiFi.localIP());+ R- M3 B6 o* M! E2 U. T9 x5 t
- server.on("/", HTTP_GET, [](){ j9 L7 Q% l& I2 Q9 C
- server.sendHeader("Connection", "close");
% d5 t0 n' ]( a& g - server.send(200, "text/html", serverIndex);' O' y7 Z2 O% A) F6 l$ `
- });
2 e' B# j( L) { - server.on("/update", HTTP_POST, [](){8 C' v0 J9 y1 j
- server.sendHeader("Connection", "close");1 d: H( r9 ~& S; ^" I- a
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
1 h7 v6 J# j! C2 x% M - ESP.restart();
" W/ q" T3 N& H - },[](){
8 k& q6 v5 q& W0 \' g - HTTPUpload& upload = server.upload();3 I; _( Q& D* x: n# G
- if(upload.status == UPLOAD_FILE_START){0 W/ E8 i: K. m8 x& d9 Q
- Serial.setDebugOutput(true);& e' d$ W* q7 G7 a( m8 t1 \
- Serial.printf("Update: %s\n", upload.filename.c_str());% \0 j/ l, ]+ o( y
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;2 W( v( G% L; X$ m4 L9 P
- if(!Update.begin(maxSketchSpace)){
+ |! \- b N; f5 q& b' X - Update.printError(Serial);
2 R; f7 \6 x; }& D8 Y - } N$ c3 ]: H2 M9 Q& v4 B! ~7 ]" T
- } else if(upload.status == UPLOAD_FILE_WRITE){
3 c' X9 z) K. e7 H7 Z - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
8 C: [; f' D1 j$ R9 N4 { - Update.printError(Serial);, |) E( t. A: R+ S- S
- }. c d) c, Y; i8 d; i+ Z; g, C3 p
- } else if(upload.status == UPLOAD_FILE_END){* p) e7 Y1 y% L1 M
- if(Update.end(true)){7 E% B6 ~# S1 N( P, I ^7 _
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
7 O u0 ]) G4 k# a9 W# j: T9 k - } else {
4 [7 [- Z( n q1 D1 C9 [ - Update.printError(Serial);
! r( L% r/ [ J/ p4 @ - }9 v7 ]% F+ C( e5 P9 z# Y$ @ J7 `
- Serial.setDebugOutput(false);
8 `( \ {" V7 S2 u! h5 H - }
0 X9 n3 z7 X# _& D0 O' n" f% a - yield();4 _2 [9 l# w( m. X8 N
- });
; W2 ?; B4 z- r0 k7 n6 `) ` -
. K. n* u( \1 i% Z - digitalWrite(2,0);
. `' e+ s Z- `& E - mainAction();
. }5 N- h% Z5 d6 ] - if (digitalRead(0)){7 ~' q6 Q! i) S* z; C+ R6 B& {4 a1 V
- ESP.deepSleep(0);
" m; `/ o3 w. g$ u! w) c - } else {$ s7 S9 [& ~+ J8 w( M
- server.begin();
1 r8 U+ t' o4 \& b: O - }- ]2 {9 f* M$ Y. G3 k; `+ D
- }
D+ S5 E/ |+ h+ P5 `2 k2 y) S* y - void loop() {, l( ]8 d- f1 V e8 V
- server.handleClient();. H6 H4 Y) I: t9 h
- delay(1);& I) S& x: G4 A3 a, m
- }/ ]! x! h8 p' w
- String doGet(String url){% g2 E" L; p. M% d9 w& F
- if ((WiFiMulti.run() == WL_CONNECTED)) {: b& w5 c* z) s1 ~
- HTTPClient http;
! [; I: O; E& d- p! }5 j; H( f$ } - Serial.println("[HTTP] begin...");* ~; ~. _) z6 B# U5 h/ S1 x' w
- if (url.startsWith("https")) {! k& I$ ~9 j; K+ j
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
- P! J% r7 l" `6 N( O - } else {3 @! z9 \/ |7 ]6 N4 d+ P7 t7 S
- http.begin(url);
+ G5 H) M! H' h7 ^* S6 r; \ - }
& u, V2 T" b: k5 P - Serial.println("[HTTP] GET..."); c# }" l6 o9 y8 ^5 C
- int httpCode = http.GET();% D" [" o) | b7 r# f7 A
- if (httpCode > 0) {1 m5 x P" N1 u$ I, B
- Serial.printf("[HTTP] code: %d\n", httpCode);: \- p6 G% u6 N. ^0 Q
- if (httpCode == HTTP_CODE_OK) {; X# l/ B+ b' w9 c
- String payload = http.getString();: A' x+ i! b) M% [
- Serial.println(payload);+ S: m- o2 }+ O% K6 O: A3 `+ B6 r
- Serial.print("\r\n");! H0 c" C5 h, p8 t W0 u1 X
- return payload;
5 Z9 J/ u5 f/ d8 ?" J! w j$ o' {% t - }
& G4 C: Y- [" L) |* E/ U+ c3 D; g - } else {% y( v6 d8 L1 j B r
- Serial.printf("[HTTP] GET... failed, error: %s\n",
: |1 @8 q0 T! @) H, [& c Z: H - http.errorToString(httpCode).c_str());! h$ q8 A! T. {
- }+ p2 z3 D% e/ W: D0 C: M$ d7 J$ W
- http.end();
. z4 w- C& b D" e: |6 v" v - return "";$ P! Q$ C3 K( U- @
- }) w- S$ h' Q# X
- }
1 T+ N' U6 x) i& C - void mainAction() {
( ]# ]1 X. |7 ?7 g - // 发送请求
$ M8 z/ z2 R. e4 Z - doGet("http://google.cn");
1 p3 W2 F- Y+ q) U) R o7 G - }9 y1 q4 S/ k0 S4 B; x
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