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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)
3 c/ J" E8 w3 N) B$ w+ l7 X, T3 j- #include <ESP8266HTTPClient.h>
$ |! ?$ X L: R5 i - #include <ESP8266WiFi.h>
`) {6 L( B! V8 d - #include <ESP8266WiFiMulti.h>
2 |5 r9 q( D# _9 [4 a; } - #include <ESP8266WebServer.h># t6 V6 j- _" u# s0 u/ i* S
- #include <arduino.h>
1 Q% r+ L" G% ~; A: n6 `5 V: o - ESP8266WiFiMulti WiFiMulti;8 b$ l% I. T* ]* N( O5 v( a
- ESP8266WebServer server(80);9 [5 @( t7 Y7 V
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
+ ] g' S$ A! {; Y9 @0 q - ADC_MODE(ADC_VCC);
: w" n' Y* U# W5 Z - void setup() {
* r8 z- t, E/ g" H - Serial.begin(115200);
( k2 r2 Y( u! B2 _% D/ j: ^ - Serial.print("\r\n\n");
) B$ v8 O( z Y. v - pinMode(2,OUTPUT);
7 T% Y! ?. \; z m - // WIFI7 x) c6 b. r- ^! \
- WiFi.mode(WIFI_STA);$ X6 i7 G" X8 f- J
- WiFi.hostname("Sparkle");' Q, p9 \0 ]' q
- WiFiMulti.addAP("wifi ssid", "wifi password");
3 w$ s S5 u5 K f - int tryNum = 15;
1 m2 b# z3 U( m. R5 p1 P" ^ - Serial.print("Connect WiFi");2 y0 m+ N) l& ?+ @4 s
- while (WiFiMulti.run() != WL_CONNECTED) {2 U+ {: }" T: `& B
- digitalWrite(2,0);0 Y2 w3 S) U) [8 g9 K
- delay(200);4 M6 n D e1 @# b( V! J9 h% j$ A6 q2 `
- digitalWrite(2,1);
# h u3 A ?' W9 N v7 k" y' f - delay(300);
/ C) K5 [+ C7 A9 N! k" L: @ - Serial.print(".");/ i3 w- Q, C1 z( j, a b9 ~5 ]1 V5 k
- tryNum--;
1 P- {3 K/ O; X; G7 T' _! [& f - if (tryNum == 0) { |0 [0 D( {" \1 O
- // 1min% I% y1 F) S+ d$ z
- // ESP.deepSleep(60e6);5 a1 X# t5 C. h- E! E
- ESP.deepSleep(0);" m4 o8 i5 R: l8 ~
- }
n" S2 L1 O# `" p c - }, s6 m9 T- {! h2 G
- Serial.print("\r\n");1 i1 o' \5 P! t) z& p b) h2 w
- digitalWrite(2,1);
. j" A2 h" M& Q% [- _0 s - Serial.print("IP address : ");0 a( T8 f. X; t* }2 `
- Serial.println(WiFi.localIP());
# J! @1 h# z7 k: \, f" `0 k* k* ` - server.on("/", HTTP_GET, [](){
0 ]9 s/ [# q1 W1 s7 ]) r5 D - server.sendHeader("Connection", "close");9 D0 D0 s3 \. ]( ]3 C3 p
- server.send(200, "text/html", serverIndex);% T0 `- j, y& Y7 Y8 X( G" T
- });
" q( _" M$ z5 I; u+ A - server.on("/update", HTTP_POST, [](){
4 G' B& g# v# \7 w/ p9 P! L - server.sendHeader("Connection", "close");2 v8 A0 a+ o* U8 U& F
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
: j+ d* @! R; T6 h, \ - ESP.restart();" F& U5 _' @! r' v; o
- },[](){7 L& F+ v& U1 f+ D2 o8 r
- HTTPUpload& upload = server.upload();
) p* v( ?0 g4 q% {& J - if(upload.status == UPLOAD_FILE_START){7 H# M! c! `) N" q s
- Serial.setDebugOutput(true);
/ \; t3 ^1 e# V2 l - Serial.printf("Update: %s\n", upload.filename.c_str());+ n- f2 \8 w4 ~" P. G& A7 ?
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
5 c |. ~( R7 z/ P8 k6 `$ M - if(!Update.begin(maxSketchSpace)){! y& R: x' \2 S g
- Update.printError(Serial);
% `/ x( c$ r+ P1 r, V' B) C9 b9 ?8 o5 a - }5 D) T$ k# g1 ]0 s
- } else if(upload.status == UPLOAD_FILE_WRITE){& J4 j$ j6 c7 A2 V
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
, X8 C. n! Z6 K - Update.printError(Serial);( f+ M1 G3 S5 Q; j0 ]* L% I* o1 S
- }
2 C* t, R0 w2 ^9 }) x7 ~ - } else if(upload.status == UPLOAD_FILE_END){
$ e% ~# u( ]! @/ c9 s - if(Update.end(true)){
1 d. W+ w) l- @' L - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);- s+ b0 c$ z$ c* d4 y
- } else {- H* R; G4 h/ T* | m2 b7 B1 f
- Update.printError(Serial);
& w6 R h$ C7 u' @8 J+ j - }8 g" Q0 W' z2 B q& q
- Serial.setDebugOutput(false);
/ d' K' s/ }/ [0 c - }
3 q- ~7 X$ \9 S7 b; M8 C3 L, ] - yield();$ R2 c l3 {. E% H& F, h
- });
4 d% m8 p9 x0 ~% O -
0 K, S) u, J/ A. ~/ W - digitalWrite(2,0);7 q2 p! I4 w# b5 }- V( G8 U8 e7 t
- mainAction();+ r% a# n1 `, _; \1 O; @" r- ?
- if (digitalRead(0)){8 _ o1 m; F" T( S6 }
- ESP.deepSleep(0); n* s9 ]( M4 ?/ k( G# B1 t
- } else {& [" q. t5 d+ _' e& b+ N1 O( o
- server.begin();! Z6 |- B4 t& e+ t1 L( l
- }+ w8 J3 T2 j8 U7 X
- }
8 A% i( X1 Z8 L. n3 P - void loop() {
2 c d9 J% T6 i6 j/ o+ C! u - server.handleClient();
1 |, c7 U9 f- c7 B. V8 g - delay(1);- _! k" s) ]# J/ U) u9 l, o6 ]7 }
- }
- a1 h" |( `$ n/ l* z' { - String doGet(String url){' R. \+ H$ h( u2 j: U) a& y* v; S
- if ((WiFiMulti.run() == WL_CONNECTED)) {
9 Y( C( I j: t" S! b - HTTPClient http;
$ e' {, o/ B) Q - Serial.println("[HTTP] begin...");
+ M* Y8 n7 w1 ]5 _# R9 w - if (url.startsWith("https")) {5 x/ H, c5 d2 ?/ b. {, ~
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");- a7 z: Q4 p. H+ [$ x4 b* m8 a+ ^
- } else {
) h, @6 P0 T1 c& E- j* H3 ?, @/ d: j - http.begin(url);* Z/ l& p( k2 E* ?- K- \, t( O5 t
- }9 v' C1 P5 c; {# c& o+ Q' [% y0 X
- Serial.println("[HTTP] GET...");
; F- [* F0 ?! M5 _5 s$ Z1 p/ F - int httpCode = http.GET();
2 o0 B# r. C9 W. z2 r# n - if (httpCode > 0) {
4 P0 u' r( b4 y; i - Serial.printf("[HTTP] code: %d\n", httpCode);
' P2 S: w! e: H* I, {! E - if (httpCode == HTTP_CODE_OK) {5 ~3 q2 d0 }) v. `# w
- String payload = http.getString();3 ]9 }* F0 f- X2 Y. L8 S
- Serial.println(payload);
* H) z/ h- H) y - Serial.print("\r\n");
- u+ Y4 u: U7 k4 d' B - return payload;! i& X5 X. z1 p" O% [' F+ M
- }
% _3 I; a& p% ]3 O# c5 m6 w0 f/ S! _6 K1 M - } else {$ D3 j8 `0 ~3 E& o4 r; i
- Serial.printf("[HTTP] GET... failed, error: %s\n",
3 U) e" H+ J( M& ~ - http.errorToString(httpCode).c_str());2 i3 N Z+ P9 o" b$ f' s
- }" S- b8 N( J. ^' v$ q) z
- http.end();
5 `. u7 N3 L2 y- D$ ]# [, H - return "";! } b. r; s& l% r5 m
- }7 g% B: h" i T& K4 ^0 `
- }3 R7 D! ?8 {8 O! m: m% W* q
- void mainAction() {5 \; \! V0 f+ m! w8 P7 U. @% I
- // 发送请求
3 ?! M9 [* w* I4 ~9 A# ` - doGet("http://google.cn");
$ F# {8 ?& ?+ C p1 r - }
4 D" k2 u% d3 q
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