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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)& s U2 d2 p. [# A
- #include <ESP8266HTTPClient.h>; N' D. Y( [- L& O6 _- S
- #include <ESP8266WiFi.h>+ q* F" V5 U6 h2 \6 f9 R4 t
- #include <ESP8266WiFiMulti.h>; ?0 @& K( @4 e8 c+ u% |$ ]
- #include <ESP8266WebServer.h>& ]# l/ a6 W; l8 D( M0 @
- #include <arduino.h>
9 t o l3 G* Y6 k+ W+ F7 n# H - ESP8266WiFiMulti WiFiMulti;
, y6 p3 K5 y, T: o I - ESP8266WebServer server(80);5 ^ l5 z2 c! ?# K2 R( @# e
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";) O; P$ k2 Y8 h2 r
- ADC_MODE(ADC_VCC);+ S+ e( |3 w) Z6 y9 h
- void setup() {
0 N* N7 X! d* l - Serial.begin(115200);0 P: l! t+ ~' @$ _- v/ `4 X
- Serial.print("\r\n\n");4 P6 A; [7 V7 T6 r
- pinMode(2,OUTPUT);
* N% J X- @; `0 P. Y w! o( c/ d. ` - // WIFI5 M+ [& Y9 ^; W: J& C
- WiFi.mode(WIFI_STA);
6 ?. ^; p @ @- w8 a- ~; W# T+ G8 a - WiFi.hostname("Sparkle");5 b" m0 L% U8 G6 v1 H( \% m7 D
- WiFiMulti.addAP("wifi ssid", "wifi password");: i2 D; ^$ K' }5 [7 p
- int tryNum = 15;+ }$ }; P0 q' q/ B
- Serial.print("Connect WiFi");; v4 P9 r' q" K/ n# p
- while (WiFiMulti.run() != WL_CONNECTED) {
* A- f: s: K" e) f2 F - digitalWrite(2,0);$ S X: Z8 `4 A* \+ V# [, E$ Y' b
- delay(200);
M" ]" D7 J' @7 k - digitalWrite(2,1);
( ? [ ?1 h7 @! j5 @ - delay(300);
, r# `# P, G4 a8 \2 b3 _, O - Serial.print(".");
; o* R* ]- q; i! t- W - tryNum--;
! K$ S( b5 c' I5 ~. E( i* @+ ?) U - if (tryNum == 0) {
0 X# v h, w3 B8 H$ S( ?& g - // 1min) Q) d: ?/ L0 @: m: j f
- // ESP.deepSleep(60e6);( L2 p0 X) t' {$ W% {1 s
- ESP.deepSleep(0);
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- }. K; d9 Q* L8 L, F4 n* f
- Serial.print("\r\n");
: _/ Q8 m4 n( w- X# u - digitalWrite(2,1);5 q0 O, i$ J# K1 R- ^
- Serial.print("IP address : ");% V3 e3 S. g1 a( r! A' ^# g. T+ o
- Serial.println(WiFi.localIP());
. a7 U( |8 E7 l$ J! _ - server.on("/", HTTP_GET, [](){
2 Y/ ?% S' |5 q0 Z& _4 _: P - server.sendHeader("Connection", "close");, S4 N$ @4 Y0 z0 D+ N, c! K: z$ V) E
- server.send(200, "text/html", serverIndex);
! y/ K4 A, `: v+ y. | - });
2 Y) |4 k( \8 U - server.on("/update", HTTP_POST, [](){. w! r: j+ V$ z) U6 d% L4 j8 n$ N% a/ f
- server.sendHeader("Connection", "close");
2 @9 q* p; y* W$ \5 w$ Y - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");$ r5 Y/ T" {" f( Z
- ESP.restart();
s8 ^, L& m+ L0 Q# `$ t3 T, p; S - },[](){+ Z3 q6 i! O) Y4 T9 ?; F/ z
- HTTPUpload& upload = server.upload();
- V m' H: D, B: q - if(upload.status == UPLOAD_FILE_START){( A2 b6 |7 ~' s" N! y/ m
- Serial.setDebugOutput(true);8 {+ ~/ n8 o+ n6 |# d
- Serial.printf("Update: %s\n", upload.filename.c_str());% C/ }4 u T8 T" R% a" O
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
5 X7 T* V* E; u$ | - if(!Update.begin(maxSketchSpace)){0 `3 H F/ I6 S
- Update.printError(Serial);
; F2 X: }- K) _2 x - }, U$ G3 w" I% Y
- } else if(upload.status == UPLOAD_FILE_WRITE){% N3 q4 H, A% z; P+ T
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){- W& h1 h; b! h; l4 @
- Update.printError(Serial);
: h2 o, H3 R& M0 P, s% N - }+ M$ u# p& \5 B
- } else if(upload.status == UPLOAD_FILE_END){+ g/ y7 ^( w9 a! c' Y
- if(Update.end(true)){4 {" a3 H* `7 X- ], X
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
6 T0 H, z! M9 P - } else {
4 v" h0 t5 i* u - Update.printError(Serial);
) {- A3 o" C* E. B5 [" R+ l! ^ - }3 h$ y0 D7 N: D# U& N2 `2 F' w- M$ _- l
- Serial.setDebugOutput(false);2 q' S; m" F" J3 d: Z, T
- }9 [; I: P/ C9 {. R* W7 [, e( x+ P
- yield();
; P" R' f1 i; x* R; X - });
1 [7 R% `' l- S" ^ - ( ?- i. p. C" k1 I; c- |( J4 d
- digitalWrite(2,0);
8 E( F; W! ]/ ~! J- R" l3 g0 a! K - mainAction();
" t" Q/ x3 h4 p& c" p0 ~1 x8 \ - if (digitalRead(0)){
9 E( X R6 `) Z0 T - ESP.deepSleep(0);
, W! p" n. u- |: Z - } else {' o7 j& A7 S/ `
- server.begin();$ o3 w4 t p" i2 e8 j1 ]
- }: \+ @, j: X9 k( y3 ~1 [8 B5 ?
- }
( k8 U# J8 r% j" D6 c3 |* ?: Q - void loop() {0 G- V6 I: b: V" x; X/ ~
- server.handleClient();
( e6 h# r) H' U ]; A6 J - delay(1);
F- i. I- A, V, _ - }
6 w+ ^' i* _/ |, E3 v7 P - String doGet(String url){& K6 f' R0 n0 C- L& x
- if ((WiFiMulti.run() == WL_CONNECTED)) {5 o4 ^5 D8 S* r7 i2 Y1 F6 F
- HTTPClient http;% ]" C% ]2 f2 B7 W- }
- Serial.println("[HTTP] begin...");# P5 q6 e7 ^. D/ z. b
- if (url.startsWith("https")) {4 r' T* B- ~5 b
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
" }9 ]; c. e! x" j& A/ r. r - } else {
: ?) L9 j# @' b- s# t: D/ p- T0 R - http.begin(url);
u6 P6 e% B% F7 L. `( n0 ] - }* [0 F. r# T; V$ \ s- y0 M
- Serial.println("[HTTP] GET...");
$ R- i( R! I6 d6 o+ I - int httpCode = http.GET();
3 c- X5 E3 [5 d. y3 k+ m8 p$ }2 I - if (httpCode > 0) {3 ?5 I" ?$ r: }9 v$ i
- Serial.printf("[HTTP] code: %d\n", httpCode);2 `5 Z* Z) U& Q3 _0 m
- if (httpCode == HTTP_CODE_OK) {
/ r, e2 [# [0 @1 c7 c' S - String payload = http.getString();4 q6 ]4 D8 X7 z3 b, h$ D t( b/ H I
- Serial.println(payload);- u0 e) y& A* I3 y( s7 ?: P
- Serial.print("\r\n");
8 c- f* |9 U6 g, _1 z - return payload;
d9 C5 @$ e, M6 w - }( c/ l* ?' Y: c' T! P9 K
- } else {4 v+ ^4 M4 }( ?& t+ y3 ?% l: ]
- Serial.printf("[HTTP] GET... failed, error: %s\n",1 x, x" h3 L& m+ v2 Z1 R
- http.errorToString(httpCode).c_str());
b" {$ B' ?! _3 ?$ { - }
7 F+ m; A2 G J o+ ?/ Z; I# W - http.end();; _4 P$ C7 i3 H, j6 V% D
- return "";( F, P( Y/ U! X' [8 H
- }' l3 w$ m: o: D( l/ v' ~- G
- }5 F" I2 x! A% |4 _, {) B Z1 B3 M6 K
- void mainAction() {, a" a$ z+ f. P. P! t- f( B N
- // 发送请求
- ?) {0 D# p" Y% A9 C1 [$ t/ A - doGet("http://google.cn");3 \0 i# e; y9 f- S" Z2 Q# b- P
- }
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