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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)* w/ s+ @" K. ^! x" z( m$ \5 L9 U U
- #include <ESP8266HTTPClient.h>
# Z/ d' P) y T `: i* J - #include <ESP8266WiFi.h>
|$ `* m0 P: a; |1 q - #include <ESP8266WiFiMulti.h>0 I. D& P" J$ L7 j
- #include <ESP8266WebServer.h>* g/ h1 T, t; I# @/ }3 G2 z+ b9 Z
- #include <arduino.h>2 m9 p6 d' H: \; p" r `
- ESP8266WiFiMulti WiFiMulti;
/ ^0 \( ]' M! w - ESP8266WebServer server(80);
. R+ x* e5 K* F; ?2 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>";) _: K/ r) c, p- ^# u
- ADC_MODE(ADC_VCC);; f K9 v6 G$ \/ |4 S8 @
- void setup() {; {1 E; G- l. o) Y5 {" [
- Serial.begin(115200);' X6 `/ R$ \* C
- Serial.print("\r\n\n");& n+ @* z/ @7 D# E" @# h% p9 _
- pinMode(2,OUTPUT);; u Q7 U: l- g1 ^( I& E. j0 a
- // WIFI
" ~9 B5 ]/ k! y! q. D0 c - WiFi.mode(WIFI_STA);
! X9 \8 I8 _* C' r8 `: j7 R! V3 N - WiFi.hostname("Sparkle");
" X. V8 O4 U" f$ P7 p% m6 q - WiFiMulti.addAP("wifi ssid", "wifi password");, d- T) M6 c& R% h( w7 A: }* J
- int tryNum = 15;$ p4 ?1 v) [) ^/ Z
- Serial.print("Connect WiFi");
7 @+ V+ P8 _3 `& ^3 }: C4 k - while (WiFiMulti.run() != WL_CONNECTED) {
/ Q! N$ S! P1 K2 i# ~0 T- N8 v - digitalWrite(2,0);( E8 Q7 @5 O: b z
- delay(200);
& X4 Y0 ]6 b4 V) j# F9 i - digitalWrite(2,1);
% S6 x+ K' }7 s: K' c' k - delay(300);2 V/ T( d0 C& t8 m, a
- Serial.print(".");: c& @2 E' ]+ I
- tryNum--;
. z. u7 ^1 v1 V$ d8 F0 t - if (tryNum == 0) {
& R2 r5 @+ q0 c/ {" e% A! k - // 1min
X+ ^+ {$ z `) l$ y V/ { - // ESP.deepSleep(60e6);4 }1 `8 c& m& l" G7 Q* V5 [! N
- ESP.deepSleep(0);! o+ e2 C: [( H0 ~; Q n- D* z- s2 d I
- }2 @# j4 ~1 H) [5 h
- }
y0 P' A3 `0 ? - Serial.print("\r\n");
0 @/ n& n: j/ o7 u - digitalWrite(2,1);6 G! J& {. ^1 E- x
- Serial.print("IP address : ");0 J! ` w" p0 e2 g3 A2 Z
- Serial.println(WiFi.localIP());
- r6 c, D! C# y+ F; }# U/ Q - server.on("/", HTTP_GET, [](){
8 `: h6 n7 W$ }) g. u" \5 x - server.sendHeader("Connection", "close");
7 L) }4 G8 i# `+ i; Y+ x - server.send(200, "text/html", serverIndex);
( [. Z4 {# x- |" W& a - });- e, z( }. T3 _# u1 p
- server.on("/update", HTTP_POST, [](){
' B* s' S3 y& x3 ]0 s - server.sendHeader("Connection", "close");
" L% E. a C6 m8 p9 M - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");- E# c1 ~% u1 ]
- ESP.restart();
* m- W; @: N2 Z9 P. _0 K7 U- g0 ]6 l - },[](){
1 V9 V9 o- q% P1 V0 Z7 ^ - HTTPUpload& upload = server.upload();* L7 X i, i& u1 h
- if(upload.status == UPLOAD_FILE_START){; b2 ^; z* C% J- P6 C0 L4 Q. B
- Serial.setDebugOutput(true);
' a7 j. G% z4 g% X B. {8 n - Serial.printf("Update: %s\n", upload.filename.c_str());5 A, H& G! Y) d& H: N/ ~
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
* B+ I9 U" Z$ t - if(!Update.begin(maxSketchSpace)){1 S b/ y6 K+ Q4 m' ~
- Update.printError(Serial);
4 A7 B+ n9 D+ P/ M0 d; H: z# h+ O - }1 S) ^* _; ~# }9 @" X" C! E
- } else if(upload.status == UPLOAD_FILE_WRITE){1 `- I" ^' v8 J% P. T7 \
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){$ y- ~ u3 N% L5 x1 ~( S
- Update.printError(Serial);1 Y, p- e5 g! p- l% k
- }' c4 o9 p" ]( H
- } else if(upload.status == UPLOAD_FILE_END){
: W1 X, R: K: p* v3 c% h - if(Update.end(true)){
# j9 ]7 P% ]* g; f7 o - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
& K2 A1 E+ t, a4 V, S7 f7 H8 j - } else {
V3 m P7 ?$ A7 u J. u# P - Update.printError(Serial);
/ O7 P/ D1 Q- x% O8 k - }
7 Z0 Q0 U ^" U# [ W3 k - Serial.setDebugOutput(false);
6 r" ?4 d- `4 [" e1 C1 R7 E - }2 C. X- K+ e4 s8 x
- yield();
) U0 l. M: z* X" x4 x - });
5 J, n& ?( X& |; `* \8 D - ' B2 ]1 ?# w. O7 J4 `, t2 E; ^
- digitalWrite(2,0);
?" z1 l2 P8 c) I4 U3 z! K - mainAction();: x& L+ o7 Q# B# f
- if (digitalRead(0)){3 H& e' J0 X+ e
- ESP.deepSleep(0);: O$ j1 L3 N: U
- } else {
7 ?* U) z- }2 a( O) O9 R9 i) W - server.begin();
9 ~( p( y* l. |+ Q" a( [ - }
# p3 Y1 |! T9 X9 b$ @" ^* s - }
# P& i" h* Y& R$ Z3 h: X) @/ Q4 A& P - void loop() {
" e) z& ]6 c# c4 O: l - server.handleClient();
; X5 i# `4 d# b0 F( \# x! }0 U - delay(1);
4 G+ |8 p0 p6 w2 I. W% r - }
" l" j. b: ~$ P$ A3 @+ _& \# \ - String doGet(String url){
7 d9 R" ^9 D5 S' K - if ((WiFiMulti.run() == WL_CONNECTED)) {! B: p7 h6 a7 P) Q B2 D
- HTTPClient http;
$ M6 x& H6 L, I3 s3 r - Serial.println("[HTTP] begin...");
/ l% r# C* E) ?' e+ J - if (url.startsWith("https")) {" O! a2 |0 L; D0 A2 D4 g% E
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");, ~8 a4 m: r! l) c4 p
- } else {! v3 l! L- t p+ W. g7 g# k* Y
- http.begin(url);! @& N9 M! O9 |
- }
1 w" O3 V p6 Y* {* Q - Serial.println("[HTTP] GET...");
! S% L* ~) ^8 X - int httpCode = http.GET();
( d, ?) ~: {$ t( s8 a H# m - if (httpCode > 0) {5 X7 r2 I6 z- C9 R( a% G
- Serial.printf("[HTTP] code: %d\n", httpCode);
5 k ^+ N7 m7 |3 a& J- V" p - if (httpCode == HTTP_CODE_OK) {' @6 p. ~ f7 t! H# \$ J
- String payload = http.getString();! I( z& ]# O- k0 C, N i) O
- Serial.println(payload);
0 R: }3 H6 m1 m5 j5 v* r* i - Serial.print("\r\n");+ h+ ~; d% z: B' v( j
- return payload;
; }; e- {& {$ O: d - }4 B2 g# [$ p2 c
- } else {2 `$ E% j! z2 B4 Y; a, H( L
- Serial.printf("[HTTP] GET... failed, error: %s\n",5 W M. J" ~ w" O; m$ V' x
- http.errorToString(httpCode).c_str());
7 R) d6 D0 M1 ?, k( F0 O/ N - }
" l1 p: g0 y5 o! m) | - http.end();3 j6 r6 o9 H8 c) e
- return "";
j! J4 |3 K" |( R - }* D+ G5 ~% W) H7 O0 N! Q2 w' o% B
- }6 Q3 e, u+ _0 w& U/ q
- void mainAction() {3 V5 x" a7 x- f0 f, ^3 D Q7 W) D
- // 发送请求/ }& t* R- D( ?: h5 q
- doGet("http://google.cn");+ w0 V' m% B1 p2 ~$ R& h. u
- }& s M2 A2 Q" e4 A$ J; p
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