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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)7 B+ v) p, P# g6 d A- E. ~
- #include <ESP8266HTTPClient.h>
5 W- B* Y# H4 O$ V! U - #include <ESP8266WiFi.h>( Y/ l) k; e$ {8 i/ }, @& L
- #include <ESP8266WiFiMulti.h>8 h: ^1 a& T, ^; `* S* D6 K
- #include <ESP8266WebServer.h>" h6 ^1 R; l2 L! m7 [
- #include <arduino.h>
1 h1 D- s: r0 U - ESP8266WiFiMulti WiFiMulti;. f5 N" C# y: D. d7 C/ |, \& O
- ESP8266WebServer server(80);
9 Z7 G- |+ l5 E0 \4 y$ B0 N( B1 D - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
# S1 U8 Q0 I$ i& K+ k: K1 ~ - ADC_MODE(ADC_VCC);/ p# F/ u* r2 T2 K0 H
- void setup() {
1 X; o j3 h" x+ o2 X5 F) r - Serial.begin(115200);' ?; }) a# c# p! D. b
- Serial.print("\r\n\n");
) O' t$ R' n6 f- { - pinMode(2,OUTPUT);$ S V: K. x4 n
- // WIFI: J0 O# {2 J* c6 h) I( i- H: a
- WiFi.mode(WIFI_STA);
- M3 W% ]/ k/ ^ Z - WiFi.hostname("Sparkle");
6 a/ k( J2 S6 Z* k. q - WiFiMulti.addAP("wifi ssid", "wifi password");
5 X) w2 M% I0 e0 [ - int tryNum = 15;
% A$ U( ^0 D: H) p9 _3 H* O0 n - Serial.print("Connect WiFi");) a4 |& g* r3 M
- while (WiFiMulti.run() != WL_CONNECTED) {% Z4 \. b/ P/ U% G( e# e
- digitalWrite(2,0);, ?7 X9 M8 r4 X8 t
- delay(200);# j( N5 U& `) `3 f
- digitalWrite(2,1);/ [# S% ?5 T/ a, Y; G# T0 S! t2 x
- delay(300);- w6 r( v9 N; U
- Serial.print(".");
$ L: m; ?* z2 g0 t4 u' q - tryNum--;; \) ]2 G1 x) l
- if (tryNum == 0) {( a1 O" }' X) a
- // 1min3 T) k3 Q! Z) F! @3 E
- // ESP.deepSleep(60e6);
( X3 R2 u _ I - ESP.deepSleep(0);/ N2 ?0 g3 h' Z" v; Y3 p8 T+ F% N, o
- }# p1 [6 y- b/ r) ?3 }) _0 w( Q0 U3 _
- }9 M) ]" S+ `4 F* A- g6 r
- Serial.print("\r\n");
; t% j# g# G5 x6 D) ? - digitalWrite(2,1);$ f- l. B6 ~- [# k" O0 r; ]
- Serial.print("IP address : ");
! R9 b5 g; A& @ - Serial.println(WiFi.localIP());% J5 ^3 G7 t. |! E! g, k
- server.on("/", HTTP_GET, [](){
5 x: s5 a8 e8 G( P - server.sendHeader("Connection", "close");
/ {1 {2 F; E$ z5 J3 J9 d - server.send(200, "text/html", serverIndex);
[8 o5 [- u! n% n - });
! }3 x. _/ T4 p% e: X - server.on("/update", HTTP_POST, [](){* H. O, S- H$ n5 k4 I( G W
- server.sendHeader("Connection", "close");* {! {9 Q% T; f! e9 Y; L
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
* D- Z" D" A: _: j% W% B& ~& u# b2 o - ESP.restart();% g2 M5 M- ~( P3 j6 F
- },[](){3 U- _7 S2 L6 M j" e7 u g: G
- HTTPUpload& upload = server.upload();
& d- Y: q% X( V- V9 p- \% I - if(upload.status == UPLOAD_FILE_START){" S; d( x5 r. q* Q2 k: u8 L3 r" E9 ~3 R
- Serial.setDebugOutput(true);1 C' k$ S/ |( |6 K I
- Serial.printf("Update: %s\n", upload.filename.c_str());
) k9 c7 \2 V: u" |) e, a# ~ - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;9 o# U' c5 L6 A
- if(!Update.begin(maxSketchSpace)){
) J- l; M; Y9 o. C - Update.printError(Serial);
]$ F- j& H3 O$ a5 J - }# o. {1 M5 W2 q+ Z8 d4 l. ~& x! H' X
- } else if(upload.status == UPLOAD_FILE_WRITE){0 l8 T1 o3 H1 ]! P! }7 H0 z
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){( ^2 d1 ~$ W9 [% ~
- Update.printError(Serial);$ R6 Y& B/ J1 w G9 e
- }* B5 ?5 ]/ R/ A8 z6 b5 S% j0 ~7 J
- } else if(upload.status == UPLOAD_FILE_END){, a" V/ F: D+ k+ b( n) F
- if(Update.end(true)){
4 E* H4 g8 z2 x0 c! w8 e - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);- _' p) ~; E7 Q7 t, b. g# W+ Y
- } else {
7 J$ W6 u1 \' o3 i! z - Update.printError(Serial);- x8 g! P9 Y b8 ^- u5 Z4 H
- }# o/ o2 F7 O; X' S- p4 P
- Serial.setDebugOutput(false);0 I" u& ?% X" O6 l" a
- }- u2 u( |* ?5 R. X; \
- yield();
1 I/ R# Q0 K w' p* W" ?! S j - });# \' v, Y! O; z7 \# d
- : s% Y0 @( y" n% V
- digitalWrite(2,0);
# _9 O6 H) s) L0 Q/ }3 [. D - mainAction();( _& A* a3 V/ ^7 V
- if (digitalRead(0)){
$ t; x5 y2 a8 B. ? - ESP.deepSleep(0);
) \) H- V6 `9 W. y3 \ - } else {6 [# l& q% `1 l6 x! r
- server.begin();
+ L; h9 B! D) n2 B2 E& F8 ^- k - }
2 h7 Z6 E- r* `% C( @7 n. r - }# I" r/ Y L0 v K- U2 t! D
- void loop() {; h0 ?. A9 @6 ~" v- U9 P
- server.handleClient();
8 H& A/ d$ N" Q0 z$ l4 t C) k - delay(1);
6 x- X! l/ @2 C - }& I4 N6 h/ o: Y) b
- String doGet(String url){
1 Y% I2 K: h; z8 L - if ((WiFiMulti.run() == WL_CONNECTED)) {$ q; y) e6 L" _
- HTTPClient http;
8 ~& b; E( c8 |& C' |8 m: a* c - Serial.println("[HTTP] begin...");* ]1 \3 Q( h4 g- M! f+ k; O4 I
- if (url.startsWith("https")) {7 Y: L# F6 {: A
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
6 l( c6 J: e1 m m - } else {
# F0 c& M# e5 U; r - http.begin(url);
W1 r' W0 n B/ u$ f2 O - }
- k6 H0 R( l5 T! M4 R - Serial.println("[HTTP] GET...");
/ g: C8 K n' D- f4 g( U* a1 H$ h - int httpCode = http.GET();! z$ b: p* D, U# U' K
- if (httpCode > 0) {
7 T* l$ j5 f, t% l( b! E9 |& P - Serial.printf("[HTTP] code: %d\n", httpCode);2 s+ c8 m8 ]- S' r) h; a. c; ~
- if (httpCode == HTTP_CODE_OK) {) Q. a& E7 _+ ~- T8 P1 q2 v* p
- String payload = http.getString();5 H$ `3 U/ l( u3 H0 l5 y$ ~
- Serial.println(payload);
0 `) T* V0 s$ J$ u, W) u" i0 n C - Serial.print("\r\n");& ?2 i; D- L9 B) g) _ f: O
- return payload;
: Z: q$ J" j; \ - }
, O2 O# E4 u8 P7 \% S: |2 h( r - } else {) E' i- O' [( t" |+ n5 `0 X- o6 a
- Serial.printf("[HTTP] GET... failed, error: %s\n",
, A7 t- W, `% A) M) f - http.errorToString(httpCode).c_str());9 Z0 `# _0 [* P4 z& ~
- }: L' l- }7 T& A, C5 ~2 ?7 w
- http.end();
7 ~" m% W/ ]4 h( Q1 Q - return "";
$ L, X7 P% r. r" C, s - }% O% w; d$ X- e6 r. W" k, ^
- }
! ?7 \+ I# _$ T. w. c3 ~ - void mainAction() {3 Q; Z6 z2 r* o5 l- ?
- // 发送请求
! f1 ]$ A1 O" r6 L D; Z - doGet("http://google.cn");
1 |* P9 |# z9 O0 P$ | - }$ Q6 r. W L6 s' I* }
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