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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). w2 G7 H a D+ M7 F$ t5 U4 r
- #include <ESP8266HTTPClient.h>
+ B3 _( J* ?, m, M9 q( n - #include <ESP8266WiFi.h>+ Q# F1 C/ J* x1 I/ }8 b; a Q
- #include <ESP8266WiFiMulti.h>/ {4 O( b E6 z- a* o5 K7 y/ _( {! Z9 U
- #include <ESP8266WebServer.h>1 e9 c7 p; k) f+ a* g5 ^$ E
- #include <arduino.h>
2 j8 m' |" K# e - ESP8266WiFiMulti WiFiMulti;* a) a9 o2 Q/ s! `" w& C8 c
- ESP8266WebServer server(80);* d3 m$ T* w1 l
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
& I$ @5 F: L- C( z9 l - ADC_MODE(ADC_VCC);- l! H: G7 i: r! d
- void setup() {
- J/ \* Q1 L! m - Serial.begin(115200);
9 z3 d8 I4 F1 S. L; K - Serial.print("\r\n\n");# E' n, C9 i6 N& M5 Q" g( g
- pinMode(2,OUTPUT);/ q7 j# E( i: @( I# V2 U
- // WIFI
8 X- a c3 |0 C7 _ - WiFi.mode(WIFI_STA);
1 i, t5 s3 f3 I- f& N: c9 G - WiFi.hostname("Sparkle");2 s5 c0 {4 A J8 ]9 s& }
- WiFiMulti.addAP("wifi ssid", "wifi password");
8 m9 P0 r6 H% K, p - int tryNum = 15;8 `& P( a. o+ L
- Serial.print("Connect WiFi"); j6 R: J/ i+ x! t5 q* D
- while (WiFiMulti.run() != WL_CONNECTED) {
- a# S$ T$ ~2 q/ ~3 S$ y4 z" } - digitalWrite(2,0);% u# e6 B f$ L! L; U
- delay(200);$ e$ g) w; N4 @- A- u6 O! c4 y
- digitalWrite(2,1);% g0 e' c6 Y! ]& h ~5 D
- delay(300);
, }: T: W+ F& Y. {3 p, t2 \; @; K - Serial.print("."); D$ D" ^+ Y! J/ W( k
- tryNum--;+ ?- f1 n8 B' X7 Y6 c
- if (tryNum == 0) {
" S& a: u% |3 B$ i( D6 } - // 1min
: Z( G6 ?! f' T* L( W! ` - // ESP.deepSleep(60e6);
5 v: @# p( ?. P8 s; H+ E" \ - ESP.deepSleep(0);
4 N- U5 {. n, Z* t1 E; P" s - }3 q" Y) n& _( o& I( u) l* k$ L% S
- }
' G$ d# l# c& S - Serial.print("\r\n");5 y# ?/ V$ O* k1 H) P
- digitalWrite(2,1);
, D& C& Z/ b2 D D* c. N6 [. h5 | - Serial.print("IP address : ");
6 H# g u5 I" g& b- e6 O' b, g - Serial.println(WiFi.localIP());
' `& M: f1 g* } - server.on("/", HTTP_GET, [](){0 a D& S( R$ V6 T+ o7 |0 k6 B
- server.sendHeader("Connection", "close");
, v) E* r8 |9 R - server.send(200, "text/html", serverIndex);
0 O0 u$ X4 W+ @# {1 }5 H% G/ c - });
1 A/ ?2 h7 M( v' w& G - server.on("/update", HTTP_POST, [](){
# ~/ U+ `( C/ @2 @/ q - server.sendHeader("Connection", "close");
1 R: [: Y) ]$ I3 G# ^ - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
: \, f! m, B. u* @6 O, u - ESP.restart();) ?2 a% K; W5 T7 B6 U& ?
- },[](){, u$ _" y V6 Z7 L, o5 G/ ?, { ~
- HTTPUpload& upload = server.upload();" f' T: O2 l. g5 `, i. G! V
- if(upload.status == UPLOAD_FILE_START){
9 X9 x I9 x" B - Serial.setDebugOutput(true);
6 ^. j3 u' d7 E9 ^$ g' y - Serial.printf("Update: %s\n", upload.filename.c_str());* }9 A U! I' `
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
; j* c4 _% f: p6 }) _2 T1 A9 S0 G - if(!Update.begin(maxSketchSpace)){
% ?: C; b5 U* v: z) @2 R) } - Update.printError(Serial);7 t+ V+ Q7 Q) q: i. q8 V
- }. ~& f6 x s( i7 g1 k, _# B
- } else if(upload.status == UPLOAD_FILE_WRITE){/ r3 ~" s0 b) q5 N! I- i" k
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
& i- n" o* y5 K0 A: Y5 W2 Y - Update.printError(Serial);
7 J: l! I" N! e \7 L/ Z2 ?- v; } - }
- ?/ q' M" b+ E4 f+ {, G7 K - } else if(upload.status == UPLOAD_FILE_END){
% ^& W: S% M: S' b9 Q - if(Update.end(true)){
2 w2 D* I, I( [- F0 `0 t - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);" D+ d% }+ m) ?( n* Z' F$ ?- K
- } else {
3 P, z+ G+ I/ n% A - Update.printError(Serial);/ [7 _' t2 {+ \3 a. o- _
- }
9 g# S/ W# D( z! H - Serial.setDebugOutput(false);
7 ~1 [% S2 d' k9 F. b# _ - }; ^1 s% ?' W0 z# c
- yield();
$ E# N0 B: g. E/ a" H; Z# c - });
% ?9 R, R' a6 l# A4 a -
+ g7 H, q, l2 y; ]. m u1 | - digitalWrite(2,0);! L( J! o6 n, A9 p
- mainAction();
% }5 y* x( o7 y0 ^- E, u - if (digitalRead(0)){$ D# B `' e* R
- ESP.deepSleep(0);
3 k' { ]# S: @0 D - } else {6 @& X$ n% @: g: Z1 ?8 W( j: v' t
- server.begin();
m& G5 C6 t+ b - }
" }3 m- }9 `/ }* O9 W9 r4 K% H - }
- V) ~. }3 f) Y6 I" q - void loop() {6 l# X8 L) Z+ S, j% l
- server.handleClient();/ X' c Y; Z) @( i0 W
- delay(1);
" |6 ?3 {4 i1 [' y - }: D! [7 a* g: r ]
- String doGet(String url){
8 L0 w4 U# O7 v3 H$ r. ] - if ((WiFiMulti.run() == WL_CONNECTED)) {
: |& F, @. }% T - HTTPClient http;7 c6 T( z2 r) n! {& F
- Serial.println("[HTTP] begin...");
* N% _# z( Y' X* ]/ A7 l( ?; c$ x - if (url.startsWith("https")) {
0 x# `8 J( f0 _- h9 g0 P7 D" {4 M+ u - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");0 Y/ B$ K' E. t) b
- } else {
4 g, c# u) K/ s+ g, o( h - http.begin(url);
2 r0 n& @$ V, V - }- x3 [6 R1 F& z% V3 z& C8 h
- Serial.println("[HTTP] GET...");9 a! B9 \9 c" S0 x1 H' T* {! V
- int httpCode = http.GET();5 {" o: J( w6 u( r( b/ r
- if (httpCode > 0) {
8 r, U4 `8 j/ a - Serial.printf("[HTTP] code: %d\n", httpCode);
2 w4 Z$ _, V& l" @ - if (httpCode == HTTP_CODE_OK) {, Q9 p' [4 w! y5 o5 q% X" _
- String payload = http.getString();8 a( C: X, [6 S- \0 Z, i" @5 L9 i
- Serial.println(payload);! h: X+ M& Z9 x P* v
- Serial.print("\r\n");
: t# z! U* r' N* H! ~ - return payload;3 q/ x' p1 `+ e; j' X }
- }4 t! r/ a' V0 F
- } else {6 ~! n* b% p( T4 {4 k$ Q
- Serial.printf("[HTTP] GET... failed, error: %s\n",
: g' w* k& [4 {+ m' P6 f8 @! S8 n - http.errorToString(httpCode).c_str());! c4 R3 V% G" {" z3 _' ^( V
- }0 y3 Y% W* |9 @/ J0 {, ?
- http.end();* P4 Q; C. G; \4 P* ]/ b
- return "";: |2 [$ `+ D! ]6 u
- }4 j9 G$ f I N5 p, T
- }
/ T. j; `3 c0 P - void mainAction() {4 V: q# {7 p, Z5 \, S* e1 r
- // 发送请求
5 X4 p# ?7 Q) l, s. h - doGet("http://google.cn");
+ z; Y/ e6 k' k# C4 O" o% |. c, r - }( u& J$ S% S* t9 ?2 [
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