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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)
0 t. ?% w! o1 }! ^: ]$ X- #include <ESP8266HTTPClient.h>
+ A1 m8 ` \2 ]. K7 v0 y3 L - #include <ESP8266WiFi.h>
# p/ x$ k; Q( {9 d - #include <ESP8266WiFiMulti.h>1 Q! h- C: @0 @% _( {$ w) S* D' \( b, x
- #include <ESP8266WebServer.h>3 Y- ~/ \4 m6 N" O# ^7 M
- #include <arduino.h># b: F, p( q! g) _
- ESP8266WiFiMulti WiFiMulti;: N0 w! f( p. {' s# F( m
- ESP8266WebServer server(80);% p" v) R) O; m8 a# B* G3 j- p, I
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";/ s: x5 Q5 ~/ ~4 q& U
- ADC_MODE(ADC_VCC);
y! P6 s( ^/ K4 p - void setup() {
' c! A$ I8 g6 s4 e0 l - Serial.begin(115200);- Z+ g5 O7 Q9 E" h2 V2 O
- Serial.print("\r\n\n");# ? m+ [* M6 Q; [- c0 c
- pinMode(2,OUTPUT);
, R2 Z* I; s s7 A! d7 t! b( ]- _ - // WIFI6 X! i0 g) e# P; K4 m' Q
- WiFi.mode(WIFI_STA);
' R" x/ G ?/ x9 N8 O - WiFi.hostname("Sparkle");9 J5 y& G( x* P% x u- `
- WiFiMulti.addAP("wifi ssid", "wifi password");0 s/ z2 y9 z2 M* d* a4 P$ ?' r( r
- int tryNum = 15;
; l/ |. ^9 z4 O1 y4 `' }- D - Serial.print("Connect WiFi");. G" s9 Z: o" E# R5 E5 y
- while (WiFiMulti.run() != WL_CONNECTED) {$ I+ k! J& F# _8 {6 }
- digitalWrite(2,0);
. b N p n2 V; d9 f: [! P# A - delay(200);
9 u" j) U; p3 U) T5 K. j& U1 D9 u - digitalWrite(2,1);% X. y# F1 Z0 W8 d% _: E. w
- delay(300);' A! i/ X) d- E3 T2 G# F/ S0 [
- Serial.print(".");
0 _2 t% e9 e$ `* Y4 A - tryNum--;- D1 M4 ~9 ~3 [6 d1 t- d" H0 S
- if (tryNum == 0) {" ]! n8 c0 Y& }5 R$ e7 f
- // 1min) N4 j5 o6 R& C3 D5 V. l* X
- // ESP.deepSleep(60e6);5 A7 u$ |) i4 r6 o. I
- ESP.deepSleep(0);, v& v- ^6 B" O8 N
- }7 F8 g6 d5 o& U& R* W
- }( @7 p. U2 m1 u% K
- Serial.print("\r\n");5 B! C$ n# }$ T q9 h$ a& L
- digitalWrite(2,1);
% a& }. B+ X2 @# I! V: _2 Q: N - Serial.print("IP address : ");
& ~3 G K" m, u: a) Z2 Q. g1 j - Serial.println(WiFi.localIP());9 |7 m% _# S5 y
- server.on("/", HTTP_GET, [](){
. _- K) B9 z7 ?9 |5 H6 |/ ~. D! @! @7 F - server.sendHeader("Connection", "close");
' f+ E% r; V4 Y% S k" P) X - server.send(200, "text/html", serverIndex);# o) L4 ?) r; w$ l
- });
' C1 K* L! ~" D7 O. Z4 J" Y - server.on("/update", HTTP_POST, [](){
0 B( t$ D* x7 X; f8 I/ t - server.sendHeader("Connection", "close");
- b6 b2 ~( S" B+ P: h7 b- L3 a* Q - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
6 E# ]: `5 a0 i7 B, \ - ESP.restart();$ r4 y0 @ B9 u7 }
- },[](){
2 b: {; `( t) p# m; D - HTTPUpload& upload = server.upload();
) T' P3 i3 C# x4 Y6 S3 A1 c3 a, T' q - if(upload.status == UPLOAD_FILE_START){
3 A; y- u H6 |. g& Y6 z4 { - Serial.setDebugOutput(true);
( `$ k7 e' `& R - Serial.printf("Update: %s\n", upload.filename.c_str());
" z) D$ R. U; ~+ |, T- g, K0 E - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;# J: w$ `7 F3 Z! `: ^3 t# q
- if(!Update.begin(maxSketchSpace)){
0 c6 M: Z) F* ^& w6 R3 R3 D$ ^- ~ - Update.printError(Serial);/ Z( z! s5 C# e6 E7 _0 N
- }2 l% h# _$ E2 t/ z/ m3 [0 `
- } else if(upload.status == UPLOAD_FILE_WRITE){# Y2 U& L/ n0 Q/ G
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
: ~! V( T: l0 m - Update.printError(Serial);
, h/ o8 Q9 N4 c. K! a/ v. c - }
* N: |$ s+ m8 u9 V" e9 \" F - } else if(upload.status == UPLOAD_FILE_END){
% ~! @) x ?& z9 V - if(Update.end(true)){
0 A3 m( L/ Q+ X3 @( O$ z3 `/ Y - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
% J: N. W( B5 w( } - } else {
) L) K* }1 x* I! E! w5 J% ~ - Update.printError(Serial);
" C; N8 I; V' w6 E5 A8 Z. k. @9 J - }6 R! L7 f' P4 H* i
- Serial.setDebugOutput(false);
5 B9 @ a7 S; Z# @; p5 Y B7 u - }$ S& v* l6 J- Z7 ~* h
- yield();1 z- f- \% X* R; |- x& R3 }
- });
: u/ _/ O4 _. b7 G -
" V1 I1 [5 Y% _1 @& ]* P5 g _ - digitalWrite(2,0);( R4 c1 W1 b3 M$ o- i
- mainAction();
/ [) R* C5 C8 I% a - if (digitalRead(0)){* q( ?) \" v2 e6 x g7 v7 @! [
- ESP.deepSleep(0);6 s- f: ~: v( n1 Q; L! P1 E' z, j+ [
- } else {7 z! R ?( _2 @
- server.begin();
. P0 o" v% j6 P# T& @0 u - }
" ?; }+ r2 ]& S- _5 W; O - }
6 P: F0 ]4 A( S6 B - void loop() {$ J* j% Q; ^& g: ?9 g4 D2 F4 k
- server.handleClient();) y% L0 }/ f9 C" X
- delay(1);
1 I. c( k$ j$ v7 G% o - }
; _; |( F3 y3 P$ _ - String doGet(String url){
4 N' `; p! w6 c6 t0 Z) d - if ((WiFiMulti.run() == WL_CONNECTED)) { G9 x; d1 `1 E$ a+ z
- HTTPClient http;- d" R. c+ ^# T. Q. f2 d8 O. }7 S
- Serial.println("[HTTP] begin...");
* t) F! @5 c1 D1 e+ z - if (url.startsWith("https")) {3 h4 h6 }3 I5 o: `6 r+ @
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");& ~% K! k, n( P% _/ v
- } else {' O# o1 K0 K, A) u
- http.begin(url);! Z. [0 ]7 Q7 `! C8 r. ^6 b3 r
- }- D2 p1 b M$ ]/ s5 B1 u
- Serial.println("[HTTP] GET...");0 O8 _. Q9 L5 d7 g+ m
- int httpCode = http.GET();
$ h! k, E5 I1 ^7 `5 d- N - if (httpCode > 0) {
8 x, i7 P6 u- R; ^ - Serial.printf("[HTTP] code: %d\n", httpCode);
3 i4 Q( _# T" x1 j; r# f - if (httpCode == HTTP_CODE_OK) {9 [6 K2 m3 W" @4 ?- M* M R: W" H" Z
- String payload = http.getString();! Q! }. U: n' N6 u
- Serial.println(payload);4 A- M T6 F1 P$ H* S5 G( t
- Serial.print("\r\n");
/ Q4 [! ]! H& Y9 u) W: | - return payload;, y$ I6 V8 t. t1 h f( N7 o8 ~: ~
- }% @& C) c' L8 E) v( s
- } else {# l- `4 D1 X7 j6 d, N1 x5 B# ^
- Serial.printf("[HTTP] GET... failed, error: %s\n",5 `* O. T7 z& S) n2 N4 M( U
- http.errorToString(httpCode).c_str());+ f# t, {# j- {! \+ _( }
- }
& _9 ?; W! B" P* e) ~ - http.end();8 W: A* J/ h- @9 T( f# P( h; }
- return "";7 @7 o. I! U Y2 j/ }
- }
: n$ d, J" m2 H% o# K" l8 ]& X - }2 e+ w4 ?* N$ [: V
- void mainAction() {2 {& d0 U# D7 c" i- m, L+ D
- // 发送请求/ p. b6 i' Z9 p/ S* }
- doGet("http://google.cn");/ j# `/ h: X# H3 e) ~) w
- }3 w) G( k: |5 t% G2 y- I w
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