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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)* s0 w7 Z/ d$ m6 c% C" @
- #include <ESP8266HTTPClient.h>
- R' G# j G3 D - #include <ESP8266WiFi.h>
' _' o; }; ~! f6 [: C - #include <ESP8266WiFiMulti.h>, X! I" K6 ?+ R( i4 {8 B, [
- #include <ESP8266WebServer.h>
* v" r# p& n2 w/ T& R7 m - #include <arduino.h># D' ]8 ~0 b, K$ G1 _
- ESP8266WiFiMulti WiFiMulti;
& o" v2 H3 d7 e+ k, I - ESP8266WebServer server(80);1 [# `9 c2 u5 O' P
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
1 N' K) U* ~2 r" O/ p( L+ w - ADC_MODE(ADC_VCC);4 N e- @7 n) y9 N: f( b
- void setup() {. `! m- S3 L1 G1 v, e' D
- Serial.begin(115200);
; I9 y! ]: g" k0 e. W - Serial.print("\r\n\n");
) q$ c0 g$ X/ K - pinMode(2,OUTPUT);
4 O* ?+ M+ h1 v. E - // WIFI
+ b+ ?0 T. M2 A8 s0 c( e1 M - WiFi.mode(WIFI_STA);. b% Y5 R; u- U9 E5 j
- WiFi.hostname("Sparkle");
4 P- C( {" v$ q2 K8 B# ? - WiFiMulti.addAP("wifi ssid", "wifi password");* P; I3 R7 b- j/ R% b
- int tryNum = 15;
7 F$ t7 k- \9 p6 b6 W - Serial.print("Connect WiFi");9 }, d- J. c, k2 f8 }, n1 i
- while (WiFiMulti.run() != WL_CONNECTED) {. i0 ~. K: [7 b# Q8 |/ ` j
- digitalWrite(2,0);
4 m; o( h0 M- e# H8 N. \" e - delay(200);
) w3 ?* `: ^ R( l- F - digitalWrite(2,1);
# B) l, v% l# W ?0 u8 y - delay(300);
[" T. ]5 a# y* a {9 c1 w4 i - Serial.print(".");1 X( }; x3 m O! J- v) r9 A$ d
- tryNum--;
$ v8 y" J8 @2 Q9 j) x. v - if (tryNum == 0) {, y0 k2 N& c# |% ?7 ?* Q
- // 1min' Q! p4 N/ d; d" n/ z
- // ESP.deepSleep(60e6);
% L: ~' C1 P+ W" V9 T( f" U% B1 T - ESP.deepSleep(0);& n0 x @: o1 p- X
- }8 n. c9 n8 w. q% ^# M, o# m1 n# w
- }
' |% f+ E3 `" {5 }* O( w - Serial.print("\r\n");
+ s$ I- Y) @- S, H' K$ o - digitalWrite(2,1);
9 i; G' u$ }7 a2 B# F" @7 \* C - Serial.print("IP address : ");
, N3 e7 g9 I9 }8 d, w- |( R# y - Serial.println(WiFi.localIP());
6 [. P! a( q. U m9 N h' a4 A - server.on("/", HTTP_GET, [](){
" V* G& H, q7 N9 I" |, S$ y3 J$ v& ] - server.sendHeader("Connection", "close");
$ {$ v; m2 J! ^. ~0 ]) Q i0 r: h; V - server.send(200, "text/html", serverIndex);
' m! D: r4 a; x& X1 a - });
3 N- U9 Z! |& C m - server.on("/update", HTTP_POST, [](){" {& }$ F5 |% t6 `7 n
- server.sendHeader("Connection", "close");
4 e( O3 A7 k" m3 `) L - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");* K, z# L* N9 U( ~( Z2 O# } R
- ESP.restart();8 G3 F7 | R- o+ Y4 ~3 s9 ^/ }" \ |4 L
- },[](){8 ^! f4 `4 V0 `2 `
- HTTPUpload& upload = server.upload();
2 R8 x+ P- h+ K) h/ s" s - if(upload.status == UPLOAD_FILE_START){, l# P$ i4 g9 w" V4 e, o" R
- Serial.setDebugOutput(true);3 n. h6 e0 W5 b! z4 w6 s
- Serial.printf("Update: %s\n", upload.filename.c_str());' g$ v6 L& [1 r Y, u8 v/ b8 M: B
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;5 t3 J: F5 N* V3 U
- if(!Update.begin(maxSketchSpace)){& ~: K3 d, V2 M5 ~/ x1 N) u
- Update.printError(Serial);3 d }8 j. c @9 |5 y6 z
- } S$ u9 Q/ {3 J& r7 |
- } else if(upload.status == UPLOAD_FILE_WRITE){8 y1 q8 O4 ]! y) i& Q+ C J
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
7 L) K* J e+ R! B; G+ U% v - Update.printError(Serial);
6 n" r7 _# i% V3 n6 c# s - }
$ t) A- B1 ~3 O5 e" |! K - } else if(upload.status == UPLOAD_FILE_END){
3 ~( A2 f S3 ?$ @+ k: y - if(Update.end(true)){3 J& S$ n( Y/ C' r. q0 o4 L
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);3 T& }; r+ V0 p% } Z5 V
- } else {' s; f- A5 C5 e! a( \* t
- Update.printError(Serial);
9 r" A+ j5 r6 J0 } - }
! e+ f- ?" ^7 B/ h6 n - Serial.setDebugOutput(false);
% _5 `8 i) K3 `; B. T+ N - }& \0 g7 N( X! c; M$ @2 ?
- yield();
9 {* {: e) ^. Z) h: @" x& N - });
, e1 w: A/ }% v6 d( x) M; }$ w2 M - - f3 U8 n1 P- t- h% ^
- digitalWrite(2,0);
, w' ~5 Y) G9 [: a, n$ D - mainAction();) l: U8 z8 l: A( E1 g
- if (digitalRead(0)){
: L% d# J, X, I5 x+ r6 G/ C5 X5 N0 q1 j - ESP.deepSleep(0);; |7 `4 ~0 C$ t3 E" g9 l+ b) q, C
- } else {
r0 r/ i% B( s: c4 r9 H - server.begin();
4 ~# ?+ T" K) R2 O( A - }
( m+ q& v$ j+ a3 F( a! O - }
' W- U0 }0 @$ y7 f& J! Z( ` - void loop() {
8 c- ^# ~) B5 V, J( t8 |3 A - server.handleClient();# d/ b* ~" m% D$ d5 b
- delay(1);
" @/ q$ [7 X5 u: d - }
, a' q: M$ l8 V& D; I: ^ - String doGet(String url){
$ k/ p! w4 L. M: Q$ C" N2 d - if ((WiFiMulti.run() == WL_CONNECTED)) {) t1 n" t% A5 A: E5 g/ Z/ F$ @
- HTTPClient http;# M) ?% O4 V p; v
- Serial.println("[HTTP] begin...");( b" u' V9 f& g4 H
- if (url.startsWith("https")) {3 [6 U0 T+ y; }+ A0 H
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");8 s# B0 r% y, d) J+ c [
- } else {9 {% r4 q8 d- S6 t7 ]; e
- http.begin(url);% ^ \+ P J, h; l, `1 l1 Z3 E
- }; q a+ V5 x8 W0 X6 ^6 O' ?, s0 R$ M
- Serial.println("[HTTP] GET...");- b/ x' y* D$ {! k
- int httpCode = http.GET();
" k: J3 ~; U/ h& g: E7 L. A# f - if (httpCode > 0) {
8 U0 z% ~/ t" `; U/ A4 ? - Serial.printf("[HTTP] code: %d\n", httpCode);
! H5 n( c; u' Q% ` - if (httpCode == HTTP_CODE_OK) {* F' I) {, L- m/ C1 s
- String payload = http.getString();& [' u4 F# O4 `
- Serial.println(payload);1 v* K% M5 z4 u0 z: g
- Serial.print("\r\n");
+ |" j i# Q# B/ m9 M3 v - return payload;
) E' H7 H7 b4 d% h, s - }
% [) R2 H8 }. n1 W - } else {
6 U+ \5 v+ W& H! A1 L( y - Serial.printf("[HTTP] GET... failed, error: %s\n",1 N) W, u$ G0 O5 @3 H% }
- http.errorToString(httpCode).c_str());
0 ]% R/ M( N; `. N - } X- m5 g( E6 d% N4 X0 H5 J+ z
- http.end();
6 W) O( p5 E3 _! q4 s" r - return "";0 d2 L' U5 z1 h8 V; k& N# }6 f
- }5 o" _! b/ l! D' p6 R
- }
9 a& Z2 ^+ F8 g - void mainAction() {& n9 U3 U( P5 j& Y7 a" m
- // 发送请求! a& B# c! ?% D6 M, b
- doGet("http://google.cn");/ Q. C& u( R0 Q+ \6 G7 [
- }
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