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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)8 W: _$ I& k' I
- #include <ESP8266HTTPClient.h>
$ a% C' z) ?2 h: c4 z. R' d - #include <ESP8266WiFi.h>
V* w# s/ N* H: B - #include <ESP8266WiFiMulti.h># \$ o% ~; A v7 p a, H
- #include <ESP8266WebServer.h>
' `9 e4 a8 g9 w' y! c- a# z) ? - #include <arduino.h>
, m7 E b" u- S3 k7 ? - ESP8266WiFiMulti WiFiMulti;5 Y3 n% {0 }- ?
- ESP8266WebServer server(80);8 J: x5 p' t/ M2 |/ u
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";9 ^) {! u# u! @6 n. U: ^& L& U
- ADC_MODE(ADC_VCC);9 i' I; N9 F* X. u) z# m; }
- void setup() {2 s8 K- l; {0 u$ C
- Serial.begin(115200);
2 \* R, q6 O4 w8 R" [ - Serial.print("\r\n\n");8 A/ r$ A% C# U' p! D7 M
- pinMode(2,OUTPUT);8 }9 X1 ~ G U. k( Y# r: R7 F5 o
- // WIFI
+ I, h% l4 Y" t2 {4 A2 F# \ - WiFi.mode(WIFI_STA);4 V% H/ {+ {8 G
- WiFi.hostname("Sparkle");0 g. H' F, E3 B( }' y" x& H, N$ O+ r
- WiFiMulti.addAP("wifi ssid", "wifi password");
& I2 |0 k2 q" |% J4 G - int tryNum = 15;
8 r3 x% p' o! u; ^) W) }* @ - Serial.print("Connect WiFi");
5 S i9 m. o/ J" y) g - while (WiFiMulti.run() != WL_CONNECTED) {
0 _7 s" H; {& P7 ] - digitalWrite(2,0);
U0 O3 D2 I5 ], v, X - delay(200);9 j1 L: W& |! B* t+ ]0 g
- digitalWrite(2,1);
$ a/ J0 ]' V9 M+ V! S5 @( ~ - delay(300);2 a3 x' `7 e: g
- Serial.print(".");
' W8 t$ f7 k6 Y& w - tryNum--;
. K: B5 p6 j$ l" |5 s4 A9 z - if (tryNum == 0) {
+ n3 T5 n. l6 a9 F - // 1min
+ M/ x, d: n8 n! a' f - // ESP.deepSleep(60e6);
( w- o: N) h0 A8 h- s$ O - ESP.deepSleep(0);
3 g- k5 z. V I8 ~$ V* B - }- x( e8 x: n ]% O8 R
- }9 M) k1 d* H6 W8 O' N; u
- Serial.print("\r\n");
5 k) X' g4 Y5 Z# C6 k( o6 i; Z - digitalWrite(2,1);
1 u: }) Z9 H6 k& n& M - Serial.print("IP address : ");
E5 X" f" M. C( T. u, a - Serial.println(WiFi.localIP());
1 _; ]( v! a( p! F# a& z( o. p9 ? - server.on("/", HTTP_GET, [](){
+ G1 l" h' H/ h) g$ X* T: _ - server.sendHeader("Connection", "close");
% H( ]! E; d! \( e# o - server.send(200, "text/html", serverIndex);
, v6 Y2 z7 t% X) r4 Q7 m3 e! @ - });
& y1 |0 y: K; N( G) b( m: ]* x - server.on("/update", HTTP_POST, [](){0 j9 M6 u/ O. ~$ |$ m+ F
- server.sendHeader("Connection", "close");
8 a, l) y% A/ o0 k' o# g( n - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");, h; | L& \. a* O2 y+ F
- ESP.restart();6 N, c: m4 T0 i2 F
- },[](){ | e+ ~& Q* P4 q7 S
- HTTPUpload& upload = server.upload();
% |; S0 g3 } e& O5 M6 O - if(upload.status == UPLOAD_FILE_START){& G, \6 P7 |" q; }" n- g0 ^
- Serial.setDebugOutput(true);
# e d/ ^% x; N6 U, v7 p, X* q - Serial.printf("Update: %s\n", upload.filename.c_str());
* C( d* x/ R. W' M6 B0 h6 b! N) b e - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
: L. t, q3 l# Y+ L' |7 k - if(!Update.begin(maxSketchSpace)){8 X9 H8 O$ E5 U+ E; q j6 _
- Update.printError(Serial);
0 K7 v6 O9 J5 o3 O2 i - }
% d" G# e/ Z: u+ q, L - } else if(upload.status == UPLOAD_FILE_WRITE){1 F* X. h' F! G, w9 p8 Q4 H$ N+ n
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
: N+ ~) ?2 }7 P% a7 f - Update.printError(Serial);
* B8 y: Z( {. y6 y8 P5 H/ ~ - }
. L3 I+ [0 x: ]! _9 T& G1 u0 H - } else if(upload.status == UPLOAD_FILE_END){
) J. r# y4 L8 i* ]& R - if(Update.end(true)){2 U9 H1 M: i' S- H
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
4 M7 t% Z+ ^& |: v - } else {
5 h# T- r0 q( A7 H - Update.printError(Serial);2 V3 x' u) Y* T. K3 {( {
- }
% K, }1 f4 w7 k - Serial.setDebugOutput(false);
5 z" A7 M' p7 T - }
E& |4 ?9 W9 n/ m - yield();. U0 @% Y: @0 e
- });' U5 B6 ^/ N5 J* q4 c( b
-
$ h2 h+ }8 l* K$ s p9 I. N - digitalWrite(2,0);. ^+ v# x: A9 e
- mainAction();: ?8 @9 p' G% F1 c7 r {
- if (digitalRead(0)){
2 J3 }1 G/ u% ]" p - ESP.deepSleep(0);+ o/ U$ }8 [. n$ q
- } else {
% x! o% A3 S# h, Z$ t - server.begin();
) ?- B( o) l: P) Y. O' p - }
9 s2 ^9 E. z8 ?) P E) K - }: x) M6 X7 y0 {6 m0 ]
- void loop() {: R- o- Q6 n; `9 {# u6 ]& g
- server.handleClient();
- A* i$ R* ~' ~) f8 t7 P - delay(1);8 u7 d& `: z8 U J% h; B
- }
$ g9 M# \$ w7 P% B; b+ l9 x - String doGet(String url){
S& G3 V. m: y - if ((WiFiMulti.run() == WL_CONNECTED)) {# _$ l& h( c6 v; h( a" s& Z, D) |+ V
- HTTPClient http;' x: ?" i% K( i" @% k3 @
- Serial.println("[HTTP] begin...");7 q: O$ m3 G! R5 e2 w
- if (url.startsWith("https")) {5 l( x; t/ p" r6 H- }$ `5 t6 [
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");# Q/ b" u7 Z1 `) R S: V
- } else {
: H! R# D! z9 Q4 _( F9 n8 ~ - http.begin(url);
h) F) X4 M+ B8 i$ v( Y" ?' C; Y - }% o$ F/ l, m7 D9 f& M# c& W
- Serial.println("[HTTP] GET...");
3 r3 _: ~( i" t0 @ - int httpCode = http.GET();. A0 Q! d* ~9 Q7 N
- if (httpCode > 0) {" `! M" m+ Y0 t5 ?
- Serial.printf("[HTTP] code: %d\n", httpCode);
$ g! U2 t) q* G+ }. _ - if (httpCode == HTTP_CODE_OK) {' H" N2 ^& B4 c9 t& h8 F- c$ h9 e' b5 t
- String payload = http.getString();
: C6 \6 ]( ^5 u) q0 q% d0 Y) v7 d# d - Serial.println(payload);2 D( F( A9 x8 U* A0 R
- Serial.print("\r\n");& I8 P/ |! |, c3 E2 O3 n
- return payload;% l8 K+ w! |: E6 T' B
- }
# A0 d+ ?0 ]. `( x - } else {
7 R; t+ i1 }! H, X3 S' t( p - Serial.printf("[HTTP] GET... failed, error: %s\n",
; L7 O0 t4 ]+ F; B! b1 X; N - http.errorToString(httpCode).c_str());( Y2 J* l, \) u/ M+ [) O, e
- }
/ ~/ ]* E) X- S: z4 l, L( I+ p - http.end();: `4 G7 ^4 \/ Q! }7 `
- return "";, v* p3 ]: w- ]* f) U7 a
- }. G0 _" y$ }1 V7 G
- }3 A9 B! b% P" ^0 ~
- void mainAction() { s! w& O' S4 K
- // 发送请求
! C' L0 P: A$ [, S9 L& X - doGet("http://google.cn");
# W& f. m$ Y% A4 L - }
! G2 d- @+ m5 t$ V1 t( ~) b
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