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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)+ L, M* Y9 G/ i# m2 J
- #include <ESP8266HTTPClient.h>
7 X" v4 k9 t1 k, v q$ n - #include <ESP8266WiFi.h>
* E/ Z# ~& t& h7 G" o/ }- T _ - #include <ESP8266WiFiMulti.h>
3 v0 o5 |8 D' _5 q - #include <ESP8266WebServer.h>4 z8 w- t# r& T8 m2 e1 r6 `$ g
- #include <arduino.h>
; u3 m* A6 O; w - ESP8266WiFiMulti WiFiMulti;
" U2 F6 j" V6 P S6 J" I9 @8 e7 q. D - ESP8266WebServer server(80);- }$ `8 `/ P9 Z( b3 D# j" g
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";/ f7 N3 `. f" l Y1 @; R
- ADC_MODE(ADC_VCC);
' Y+ t: g" l3 ` - void setup() {; j' z9 A) k9 w$ J% Q+ r8 {4 |
- Serial.begin(115200);6 Z0 e& u( A+ N0 B. L2 O" c! @# F
- Serial.print("\r\n\n");
* ^+ M- `0 _$ U/ x8 Z - pinMode(2,OUTPUT);
/ q5 w: {" F8 m% @, R" a4 U& f - // WIFI
6 C9 N9 d3 d* O0 C- P8 ?1 B - WiFi.mode(WIFI_STA);
- ~4 J9 j3 T" E7 h# V6 Z! } - WiFi.hostname("Sparkle");. \. j6 Z- E$ `$ Y3 o
- WiFiMulti.addAP("wifi ssid", "wifi password"); W; U# X1 u5 {" c% Z9 f! e
- int tryNum = 15;& l4 A( z8 v, \
- Serial.print("Connect WiFi");
4 H* A9 j8 |) g+ w: R - while (WiFiMulti.run() != WL_CONNECTED) {
' J! e: ]3 E* X6 q) \& O8 `, P - digitalWrite(2,0);+ l" a' R5 u- b
- delay(200);" ^) S0 Z- v# v& M3 W
- digitalWrite(2,1);
5 }& k) X! }/ I" m: C - delay(300);& Q0 h) D/ ^2 }1 m& p# N
- Serial.print(".");
3 K) U& |2 {; G& J* S - tryNum--;, U: \$ Y# k- F, h
- if (tryNum == 0) {
& b; o N; }0 f. W# P0 W - // 1min
) S/ @$ X# y$ T# }5 n8 C6 A/ Z$ P - // ESP.deepSleep(60e6);
- y8 @ P0 P/ _, @ - ESP.deepSleep(0);
) w# a% H+ R5 { - }
( u7 `3 ?( x0 `4 Y3 { e* M% f; i - }
$ R7 B. j& O0 ]+ \" K, m - Serial.print("\r\n");5 V3 j) ]+ Q0 u; r
- digitalWrite(2,1);2 G( c6 _8 E% f9 V/ H; U4 L
- Serial.print("IP address : ");
& E5 X, l7 ]- u' C5 o* `1 E$ K - Serial.println(WiFi.localIP());' x1 }5 I6 X! ?& H5 |/ D8 `
- server.on("/", HTTP_GET, [](){
& Y% q+ R' T z; @ - server.sendHeader("Connection", "close");- A& F: y, O1 e* q1 X
- server.send(200, "text/html", serverIndex);
: f( \2 e) A' a+ R6 W" s - });
5 \2 G1 _! p) ^& F$ c u - server.on("/update", HTTP_POST, [](){
& T+ S% _7 r# P; {# I" f - server.sendHeader("Connection", "close");
, {2 c9 _5 c) u7 `5 o: d - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");; ^4 ]4 n c" q6 v2 ^
- ESP.restart();
* J6 Y+ f1 D) Q; ^$ @ - },[](){( q5 s& N3 q }2 Q2 I
- HTTPUpload& upload = server.upload();' ?& y& U0 a6 d9 K& w
- if(upload.status == UPLOAD_FILE_START){$ W+ S0 l' ^& S; y9 @
- Serial.setDebugOutput(true);
" a! g: k5 h2 j, O/ t( H+ w - Serial.printf("Update: %s\n", upload.filename.c_str());4 G+ `4 K: Z+ N8 T; y8 z
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;: {. ~: `: h3 O5 N- w
- if(!Update.begin(maxSketchSpace)){3 e$ f" A. s& @ @+ h a
- Update.printError(Serial);
6 |. R$ m3 J6 B& ] - }
3 g* P* Y) e) ?& s" [7 Z, O! n - } else if(upload.status == UPLOAD_FILE_WRITE){9 c: l0 e% F/ U
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
% m' M" S- E: D6 { - Update.printError(Serial);. V/ Z$ V# U) u) N
- }
' h! [+ M1 L, X5 B8 {/ n8 X - } else if(upload.status == UPLOAD_FILE_END){
( W' Q& o" `* E$ H - if(Update.end(true)){
* g3 S6 q# x/ |# l5 H; x9 E. Y - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);, `/ i8 z. b" b# B
- } else {
5 n x4 b$ L- L) X+ p7 f6 V - Update.printError(Serial);
R. A( z" N) S# M! b5 }7 D - }
6 \" Q" O- m1 I8 ` l% _ q" [' {# T0 ? - Serial.setDebugOutput(false);
4 O, P* p2 {6 B* _: `" S8 x - }% L) Y: l7 |' j2 ^5 M5 ?% e
- yield();
4 ?- a; g$ h0 f9 q: ^! {, A - });+ @* K! i3 T3 }. j* v4 y
- 1 i! L, C" n8 ?3 M$ l
- digitalWrite(2,0);
7 q( f2 d7 S. J( V - mainAction();1 D0 \2 Y8 d. l/ E* Q
- if (digitalRead(0)){
! W7 S- }2 ^% U4 D% b. E7 N - ESP.deepSleep(0);/ @ m" [( X8 D( K9 d2 S3 }
- } else {
' U" K7 x1 q B: C9 A - server.begin();
; ^+ E, Z( Y' d7 X4 g - }
* A* e: x# X' M1 V t! y - }
7 F5 f: A4 m/ ~7 d( u# V. D9 ^+ w - void loop() {
1 G0 u, f& z1 N - server.handleClient();
6 I+ e6 K1 H$ F2 T8 I* r - delay(1);
, ~- [5 f( v/ N# c) P( f' M. b - }
6 m. K, h7 p1 h( c - String doGet(String url){
( R1 l( j' v- \* A3 T W - if ((WiFiMulti.run() == WL_CONNECTED)) {
3 M6 z/ O& K; z4 O( f" r( \; T - HTTPClient http;7 K$ h8 l* L0 }' u( U3 B) i
- Serial.println("[HTTP] begin...");
& h% K6 w) l& L& b& u) I% D - if (url.startsWith("https")) {! H* w9 U: i8 y% ^2 O+ C; d( u
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");! s2 ~. h3 K# y# e$ X
- } else {( w+ z% n+ h7 I! e( ?2 d
- http.begin(url);
$ D: n0 P# ], y3 R - }
e F- U* Q3 f* K" } Z/ }$ Y - Serial.println("[HTTP] GET...");- K8 k' `% @5 q* h" Q: g
- int httpCode = http.GET();
; a; q! r- @+ H) U! B _5 x - if (httpCode > 0) {* b: Y, |' J1 @1 I3 ]
- Serial.printf("[HTTP] code: %d\n", httpCode);
- F+ g+ z. w' d- T - if (httpCode == HTTP_CODE_OK) {
1 L+ Y; k1 g" l Z4 [3 {( H+ l" @ - String payload = http.getString();
( _1 k# s* l( H/ g - Serial.println(payload);
: I) }5 I) J5 D - Serial.print("\r\n");
8 c- }. C4 Y8 n9 J, E: d - return payload;3 z. R! y! @5 N, O/ O0 R# C
- }1 T* L/ m" Z9 Q* B. V) ^1 x
- } else {* o" k) U' [3 ]7 L* w
- Serial.printf("[HTTP] GET... failed, error: %s\n",% O9 c! Q! f! M$ @* ~1 g. r+ E0 U8 ?
- http.errorToString(httpCode).c_str());
* J: O6 I5 g' J- O+ V6 y - }
6 y7 {1 A$ L. }1 P2 f' j - http.end();1 N2 y4 n, H' i1 A E
- return "";$ K; Z: L& _) a" W
- }. \. J5 H8 d; O
- }
. U* O, |) T( h8 [/ W/ B9 f - void mainAction() {' l( ^7 \" Y8 D7 g8 n4 |9 m: \
- // 发送请求, e2 p! f) s$ n2 ^/ o' b0 j6 V# o( L' Y
- doGet("http://google.cn");
1 Z, C. d4 D1 ^- n2 D+ j5 y - }: n( z) A9 ]' }9 T% }# s% g
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