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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)
5 d- r; M) R3 Q5 C. X- #include <ESP8266HTTPClient.h>
, G* R" Z" r7 I - #include <ESP8266WiFi.h>1 m( E- ^. x3 `) |
- #include <ESP8266WiFiMulti.h>+ e# Z# k( q; e+ o5 w
- #include <ESP8266WebServer.h>$ \: G2 c, B6 F8 ]; o) ^9 }1 `' I5 w
- #include <arduino.h>
/ X5 m- T/ p3 ^) X' s/ D$ q8 p - ESP8266WiFiMulti WiFiMulti;
2 }' O6 y6 q, j# T4 ^3 b - ESP8266WebServer server(80);" W7 D- B. `1 z! V- z
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
# e6 m8 L% k6 q8 C! ]; D0 ?# b - ADC_MODE(ADC_VCC);
1 i& a( w7 s- {3 W8 C u, O - void setup() {5 J: v* i" f/ k( T5 i Y& D
- Serial.begin(115200);
1 \3 n: M; X3 Z/ J2 b2 x6 W7 w - Serial.print("\r\n\n");7 N& p$ `% n1 h1 f7 s* `
- pinMode(2,OUTPUT);
e! e% c; w2 I W4 t8 s - // WIFI, E* A! k, f1 C# K; t' ]8 F
- WiFi.mode(WIFI_STA);% z& c& x7 v$ y2 Q9 Z4 M' V
- WiFi.hostname("Sparkle");
( v: q8 _0 c7 b2 j: V6 g- m - WiFiMulti.addAP("wifi ssid", "wifi password");
( G: g4 V' ?9 Z( l% G! s - int tryNum = 15;
4 s% H0 g$ S6 P- I6 p' r. ? - Serial.print("Connect WiFi");3 O) A, `& P" w+ K+ E
- while (WiFiMulti.run() != WL_CONNECTED) {
% i5 M; w$ m; {( a - digitalWrite(2,0);6 j9 t9 k0 m2 o0 b- O1 e
- delay(200);
: @2 ^$ V! E! M! n4 g# I; \ - digitalWrite(2,1);
- {9 Q( w S5 j+ C* Y - delay(300);
9 g8 O" n6 @2 z' } - Serial.print(".");
1 O1 l5 n. J" f" ~ - tryNum--;' j* T5 g0 f3 |$ R, x
- if (tryNum == 0) {9 i4 ]7 e- V: S2 q
- // 1min2 W& [' S7 v+ P; G
- // ESP.deepSleep(60e6);
2 [2 G" ?# v$ R - ESP.deepSleep(0);% Q3 q' S; y$ p0 f; Y5 D
- }- V0 E6 r" D+ @# X P
- }0 Q$ P8 f( C# { Q/ D3 O: @2 D* b& E
- Serial.print("\r\n");
0 i% x# H8 T, R6 {; \/ { - digitalWrite(2,1);) T9 @0 i. m' j# z, M
- Serial.print("IP address : ");8 B7 k- Q) w4 n+ C5 S5 x
- Serial.println(WiFi.localIP());
# E/ O& N! E& y6 {. N' @! J( U - server.on("/", HTTP_GET, [](){* ?" m5 p7 r# J2 Q( l2 q
- server.sendHeader("Connection", "close");
* w* @) ~ o' s: K# Z/ Z* H* [ - server.send(200, "text/html", serverIndex);
6 x* H# D% S2 A0 f3 v& z* m( t - });
" s5 N2 V$ o: a+ l - server.on("/update", HTTP_POST, [](){ `- t0 S9 P( H3 P) r7 i7 t# a
- server.sendHeader("Connection", "close");
v, Z: c) K& R - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");! g! M. q( E) B" D6 e2 T: _
- ESP.restart();
: y1 r1 X4 }$ g! I3 d - },[](){
7 N3 d5 V# I/ V/ U - HTTPUpload& upload = server.upload();) Y' ]! S0 W- q! f
- if(upload.status == UPLOAD_FILE_START){3 @2 m# L1 D" e2 d8 S* m
- Serial.setDebugOutput(true);
* B) X; h! C) g7 _% O - Serial.printf("Update: %s\n", upload.filename.c_str());
' R0 k1 F! S: [0 V$ n5 B' F - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
6 q( O, E+ b- Y$ D# n1 _7 r - if(!Update.begin(maxSketchSpace)){
0 q* y' a; ?- C$ F. L" K1 S* ^ - Update.printError(Serial);
7 V0 G" v$ d3 [$ W( C+ E$ K - }7 g1 c/ F3 ?, I ]
- } else if(upload.status == UPLOAD_FILE_WRITE){; ]1 C P" f) a( [6 U( [$ [
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
& R9 {3 w& D! y& y. Y; N, k - Update.printError(Serial);, ]* W2 P4 V( e% ]0 J& v! v0 p
- }
/ N5 C2 w( a7 Z3 ~. ~ - } else if(upload.status == UPLOAD_FILE_END){
) d: }8 L- ~) B* Y - if(Update.end(true)){
; i7 x. o& m6 ]- U* c5 [8 i) B) K - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
, f1 P( p% Z9 o/ g A - } else {
+ R( G. V0 _7 G+ _. L9 A- q - Update.printError(Serial);
- U6 F' V* A8 B- H/ J/ n - }
& c4 n2 ]1 ~& O6 Y5 G; ^ - Serial.setDebugOutput(false);
1 O9 v! k( L9 e2 i+ s- [6 O) Q8 a$ j - }: N9 Y/ s& V2 m& d
- yield();5 {4 {9 e8 C6 Z; ^$ ?
- }); V! b5 _, u, C+ b' K& w
- u+ Z) f! `! p5 T
- digitalWrite(2,0);( Q; ^' o# A' \, `& f' v+ \) G7 y
- mainAction();/ j3 ?0 J( [) n. [# _7 \
- if (digitalRead(0)){
; k! [1 H, A) g2 S' Z - ESP.deepSleep(0);* t/ C( |7 U& ~
- } else {
! m4 O- E3 e6 j+ n# S! b# x - server.begin();
5 K5 I' I9 ?5 v5 e) h - }* M9 ^7 ?$ D7 I; a" V
- }6 u/ ]6 {2 m3 k! T. L: M
- void loop() {
9 S3 I0 `. S2 d- E! }- N4 N. |) u - server.handleClient();
0 W. V" j6 U- M8 x2 L - delay(1);$ T& q4 R: N, F( K
- }( m# s5 V. O$ V. H( W. Z' X7 U
- String doGet(String url){+ ? K( U' |8 U, h: F" X( |
- if ((WiFiMulti.run() == WL_CONNECTED)) {
! p6 E) m0 d+ [ - HTTPClient http;. c# t3 I" i- }2 P8 d
- Serial.println("[HTTP] begin...");
3 A: l* w( s; \' ~4 Z0 F) y - if (url.startsWith("https")) {6 D3 V: e. ~" u0 K% x* Q
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
! g/ n- f. \# y, x5 C5 } - } else {
- F% l! \$ |- B% h' v7 e( h- a - http.begin(url);
6 A7 _) i8 q4 d! R - }
) A% ?* L/ V5 i: j( P - Serial.println("[HTTP] GET...");+ W: P; B1 K _
- int httpCode = http.GET();
1 \, N0 \6 ^& a3 ?8 C) \* o- k - if (httpCode > 0) {
9 u4 j0 A3 _9 B2 H7 ~1 y$ Q$ D - Serial.printf("[HTTP] code: %d\n", httpCode);
! ?/ s9 i: q/ c. J; a5 T - if (httpCode == HTTP_CODE_OK) {7 h- b& h5 H1 L2 V1 @3 m, s4 i2 t3 C
- String payload = http.getString();6 g9 H* p& H5 T/ }
- Serial.println(payload);
# q9 p) ?) U+ r% ^+ ~1 D* | - Serial.print("\r\n");! {+ f Q9 C |" o
- return payload;
9 N, i: u7 ]8 Z# c' ^ - }
. n( k* j+ F5 Z: |6 z - } else {* R( e# S$ S3 b2 f) y
- Serial.printf("[HTTP] GET... failed, error: %s\n",9 l( t/ r/ h* e+ J* U" M: m; @) J
- http.errorToString(httpCode).c_str());
3 B1 m) z/ E' y2 | - }( S' s' \1 @& V
- http.end();2 X9 T% B. p, @6 Q
- return "";
9 E6 ?) p, R ^6 Q1 U3 q4 K% X - }
/ s9 y9 p. I4 o3 l3 {8 j - }
- A) L8 x9 Q7 f' C! i' l- J! \ - void mainAction() {
0 g: o7 \# i/ S' v0 S+ F - // 发送请求$ s" |& \; M/ g4 t
- doGet("http://google.cn");
/ u5 E! q9 _2 l' c, n# P. W - }
2 R% G. _, e$ a& E9 m+ B7 a
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