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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)( R. T1 t8 w8 y1 s5 \. H4 k0 p
- #include <ESP8266HTTPClient.h>8 l' ^( x* K1 W6 [
- #include <ESP8266WiFi.h>9 l, w( ~6 D2 u# o7 R8 n( ]
- #include <ESP8266WiFiMulti.h>
3 Y6 w4 E! w9 W/ T% U7 x - #include <ESP8266WebServer.h>2 p) E2 U0 Q: `; E2 l1 ?
- #include <arduino.h>! E! b* n- g4 C% q) S) R
- ESP8266WiFiMulti WiFiMulti;& q0 C: _' b5 ?3 V7 X3 U- S
- ESP8266WebServer server(80);! }) F3 o$ {4 o6 s
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";$ k6 X" b; `# s
- ADC_MODE(ADC_VCC);# h" b" q, {8 E
- void setup() {
) _; m" E! S6 R2 _5 I7 N$ ] - Serial.begin(115200);& D* g$ s, \" A6 ~ J* f
- Serial.print("\r\n\n");
: R) b. L1 f8 p/ [, X8 W' Z5 Y - pinMode(2,OUTPUT);8 q& j- e9 V/ S6 @( p
- // WIFI1 n) s0 h* C, c& V' f% m
- WiFi.mode(WIFI_STA);
1 P: I$ P9 q4 X! A) G - WiFi.hostname("Sparkle");
. v, U, n) p) h# W( e/ t: M - WiFiMulti.addAP("wifi ssid", "wifi password");
4 ~0 d" P, ~' X- [ - int tryNum = 15;
% I$ w7 R) a+ H2 i - Serial.print("Connect WiFi");
) S A- A/ Y. P$ S+ Y1 G+ c' j! C - while (WiFiMulti.run() != WL_CONNECTED) {
I5 L4 h" Q6 p7 B - digitalWrite(2,0);) V" D( ]+ k# ~$ s6 [
- delay(200);
+ j- t4 P5 K7 I8 H& z1 f! k - digitalWrite(2,1);
1 n; r7 y# n% ^# Z' k - delay(300);
' O( @7 x! r- Y0 P# e - Serial.print(".");+ T ~6 _: e# x4 l5 ] N C* {
- tryNum--;5 y. c U4 A- S5 X0 J9 d6 ^
- if (tryNum == 0) {( B& A: @' h5 J0 T5 i
- // 1min
5 O( n! b; m. h% y* O - // ESP.deepSleep(60e6);- ?( X! d# v' K7 q) W
- ESP.deepSleep(0);' u/ M0 q$ g8 g9 G
- }" a8 R& d/ h9 K9 r
- }
& |4 d# C. F# A8 L1 S7 i/ C - Serial.print("\r\n");
, R$ z0 }; c# i4 r. o7 K O. m9 H - digitalWrite(2,1);
. B/ ^ d- x$ v4 X* I0 E - Serial.print("IP address : ");
( i4 @, k0 `) \- R# F! s8 D - Serial.println(WiFi.localIP());
( x( e* m& z: d9 i - server.on("/", HTTP_GET, [](){# S% ^% {5 Z6 A( a' G
- server.sendHeader("Connection", "close");
7 }' z! t- {# }2 ~6 m0 c - server.send(200, "text/html", serverIndex);3 F9 g. ?3 V2 N: s% k( a" V6 u
- });
: c1 M% M! q( I6 @/ C - server.on("/update", HTTP_POST, [](){6 ?6 F# }" B6 k" y
- server.sendHeader("Connection", "close");
1 g3 T$ ?! N! z" l7 E! H - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");9 ?" Z2 V5 k: N0 z
- ESP.restart();9 r M6 F! c8 r n8 S5 G
- },[](){
$ n( v" a& x T- U - HTTPUpload& upload = server.upload();+ B( b) W' \) Y* F1 N) P" ~
- if(upload.status == UPLOAD_FILE_START){. S' m( ~* z4 ]" j! {
- Serial.setDebugOutput(true);
7 q( C* B( u( w1 p/ Z' K; x - Serial.printf("Update: %s\n", upload.filename.c_str());1 f% U) G) |3 C: X3 Z2 n) N3 i
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
* ?+ [3 p, C7 R* O# Q - if(!Update.begin(maxSketchSpace)){5 r; w& p& ]0 o/ F
- Update.printError(Serial);1 N( t' T8 G7 C
- }* o' |8 o/ |' T" }9 D
- } else if(upload.status == UPLOAD_FILE_WRITE){+ @2 h7 B4 F5 Z
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){2 i$ p! ^4 @4 J. H
- Update.printError(Serial);
. o! G- }- B. O3 D, l% D - }* e( R+ d9 i) H% o8 a. g5 v Q
- } else if(upload.status == UPLOAD_FILE_END){- C3 V# k0 L2 v c. C" U3 i& J
- if(Update.end(true)){
9 m9 {5 g' ?% v% q& H& w - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
[% [: p% d; \ - } else {
" X7 E" t! ], w, X, D - Update.printError(Serial);" ^! y& O3 p1 U. B. p* ^
- }
0 n/ ~$ N) O$ i4 J. s9 D8 L6 ~ - Serial.setDebugOutput(false);/ |& v3 `! ^$ x& E0 D% w6 R
- }
1 L! z# [ }9 T6 a% o0 X$ R - yield();! c% z; P# v; Y' i' w8 I
- });
" J8 o g' {6 p1 n# f& {9 i -
+ {! _" a/ a# a2 M% M - digitalWrite(2,0);
& l9 C0 N' [4 H9 G - mainAction();
$ h6 N6 ~1 ^; |* k9 [- @7 V/ | - if (digitalRead(0)){
6 |, }9 q" h* p A, z; E - ESP.deepSleep(0);4 W0 W7 @* R+ u, O# P/ R* Q
- } else {$ j/ t0 X" h" ?- k& [
- server.begin();& m" n1 O" w d" Z% L0 I
- }
6 @+ j7 j) S U2 X: l - }
" p+ J( ^% U6 V1 N7 k( ?* t2 c - void loop() {) M! }+ t& T, f. M
- server.handleClient();
3 Y2 s" C4 A4 \: b - delay(1);! n C4 f2 u7 N( @0 F' I& r
- }2 I. g% X( h( C% T! ~
- String doGet(String url){4 C& v1 d' {# A8 i- R/ n$ l: m7 H0 I
- if ((WiFiMulti.run() == WL_CONNECTED)) {
8 y6 q5 U+ i7 h - HTTPClient http;. O! C1 m! H: i2 G9 d- e2 r; S
- Serial.println("[HTTP] begin...");
e; M. i! a1 P' \1 D8 r+ r1 B - if (url.startsWith("https")) {
& G, q% G- d! i# \) x5 C - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
' a! P+ P% }/ U& V5 `9 o7 t: s - } else {2 }; E3 {4 c- O7 o; v
- http.begin(url);
; t4 y! p! @0 i5 Z" y: D& d - }& `3 _1 \4 L9 j7 s$ Y: C
- Serial.println("[HTTP] GET...");
3 m8 _5 V. ^) a V) m$ M - int httpCode = http.GET();
& g- `, I G b- @% {2 R/ u - if (httpCode > 0) {* [6 E( Y0 F# J4 R A# e Z
- Serial.printf("[HTTP] code: %d\n", httpCode); |+ k9 c; |& h+ W9 t$ [
- if (httpCode == HTTP_CODE_OK) {
% x. k( A" H, A1 H - String payload = http.getString();( Z( N( T7 a9 N
- Serial.println(payload);
4 v7 Z9 d4 d# o& c0 L3 { - Serial.print("\r\n");
% Z+ g' h4 a8 ?5 y2 k2 S0 F9 @ - return payload;, w/ c: p+ p& W4 G* I
- }
# P9 S' ~/ Y( [1 Q) o* ] - } else {- E: b% Y. ^7 E7 o8 K
- Serial.printf("[HTTP] GET... failed, error: %s\n",
: t3 C) @! J) S+ I* L2 S - http.errorToString(httpCode).c_str());
6 S: O( t4 M1 ~. P1 M; j Z) p - }$ l5 v( N1 ~6 g# L
- http.end();- X5 K7 f* a% I6 L9 {
- return "";
8 Y% ~: B: _) ?3 P8 H% l - }
G) Y' B. P8 B. w1 P - }# @" s0 I1 u. Y
- void mainAction() {
7 d# o) q+ y2 D( t8 T - // 发送请求& z! g* {& J/ R W7 w- Y
- doGet("http://google.cn");. P/ r: q1 _6 [6 k5 W! d- r3 x, g, v
- }- g) P$ u! a5 n5 }; B$ O0 o
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