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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) L ]5 u( @( V
- #include <ESP8266HTTPClient.h>9 `; B+ y6 N' E/ e3 k9 J: s
- #include <ESP8266WiFi.h>3 K6 b; j" N, T+ E( Z' U: [- [
- #include <ESP8266WiFiMulti.h>) b& a3 Y( m2 v% q2 d
- #include <ESP8266WebServer.h>* X5 Q7 M( f6 l% O' k) n$ N7 `
- #include <arduino.h>
- y* r- h. O4 l. g2 M! E - ESP8266WiFiMulti WiFiMulti;1 [2 q7 m; |2 |0 K, `" j
- ESP8266WebServer server(80);% q; t) }, x4 M% z0 d! {
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
) W! x# G4 q# c+ h5 @ - ADC_MODE(ADC_VCC);2 x2 f) ?8 X% k) b) |0 V
- void setup() {
6 g: {9 u9 o6 Y) O2 s+ | - Serial.begin(115200);
' O! o7 @& d1 u - Serial.print("\r\n\n");& R/ R$ r/ m/ Z. R2 @
- pinMode(2,OUTPUT);; E# i: x/ T! H c: }: A
- // WIFI7 ?6 S5 s {) z% y+ ~% n
- WiFi.mode(WIFI_STA);, X2 w' [6 a. J6 q" U7 d ^
- WiFi.hostname("Sparkle");, z' l8 m' D; P& v: P1 [
- WiFiMulti.addAP("wifi ssid", "wifi password");" C1 Y9 I- B0 q. P3 O v) N
- int tryNum = 15;
+ T) l; r! @ F! _. _2 @/ ?% O - Serial.print("Connect WiFi");' v. e9 Q5 T+ C" q
- while (WiFiMulti.run() != WL_CONNECTED) {
. K- R/ j7 x0 @" x3 h* } - digitalWrite(2,0);
* u. R0 [& v; x m( O - delay(200);, T: v2 J% x) x: a
- digitalWrite(2,1);
+ |4 h+ J/ R# \2 c8 ~4 ]4 U - delay(300);
! R& `0 C2 W2 w4 D0 d' M - Serial.print(".");( D% f- W2 Y: L4 S w, Z8 ~$ ]- m- Q4 \
- tryNum--;
4 o$ O8 j% ?. u* |% n3 x, p& Z$ t - if (tryNum == 0) {& B( N8 w5 c4 C! R- `: g- H
- // 1min d# p" J0 p2 u( F+ X( _% C
- // ESP.deepSleep(60e6);9 f8 o2 c9 V0 b8 ]" K" k7 j+ Y
- ESP.deepSleep(0);
! i! ^2 [9 ]2 l+ h/ [. A1 E0 v. O - }8 t/ N) K4 a$ P% i: A5 Y# z
- }9 | C- {0 b) y
- Serial.print("\r\n");- O O% V' Y2 F5 S1 V
- digitalWrite(2,1);7 X7 r, o2 b& s" Q. O
- Serial.print("IP address : ");
% A k7 k9 ~* I: `3 C, F' { - Serial.println(WiFi.localIP());) L2 G# J5 u! R% M
- server.on("/", HTTP_GET, [](){$ g6 V, f# n9 x4 C$ B
- server.sendHeader("Connection", "close");
$ O9 h# P3 B, p7 ~( O8 p - server.send(200, "text/html", serverIndex);/ K* g/ k- N* M* f' x
- }); q$ R: S# W! J8 {2 T
- server.on("/update", HTTP_POST, [](){( l1 g5 P) i' K- U. n' d
- server.sendHeader("Connection", "close");
o0 M; N; ~4 t" p. o0 X$ B - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
0 Q) t0 t @7 I) d5 D. x# w5 d - ESP.restart();, v4 d* r! t5 D9 J5 \1 h
- },[](){: x, x/ M& C1 W' U7 i5 L/ ^
- HTTPUpload& upload = server.upload();
* l4 Y2 I4 `- P) d - if(upload.status == UPLOAD_FILE_START){; N( b: E* ~) R' _& X/ L, N
- Serial.setDebugOutput(true);" e6 |4 z; r# y6 N
- Serial.printf("Update: %s\n", upload.filename.c_str());4 K4 u. Q2 K- \2 d. x0 b4 U
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
" w, [4 v& x# |$ I; q- @ - if(!Update.begin(maxSketchSpace)){. p0 a4 a; h& M' I
- Update.printError(Serial);
4 P9 z' X# q1 i! G0 ~: p8 K) f - }" L( i/ H& @3 p! w% P
- } else if(upload.status == UPLOAD_FILE_WRITE){/ p$ X# Q+ f4 x
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
! g( M: H. Q: m$ \ - Update.printError(Serial);& U5 k9 T' l& b" H/ d; M
- }9 o, _, x, f# d9 t& q% z
- } else if(upload.status == UPLOAD_FILE_END){
5 Z7 B; v8 F2 [ - if(Update.end(true)){
0 p) X |: |9 ~5 j2 e$ M& N) y - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
- U3 x8 B/ _8 }( E0 j3 O& b V% a - } else {" P9 `: q( K4 k% @9 M |' t
- Update.printError(Serial);
) X, J# Y2 N+ N1 ^; H& C0 T$ s - }; Q5 J% ~8 S4 Y) a- g
- Serial.setDebugOutput(false);! h% G* r( _8 z7 Y% j$ L
- }
4 [) H7 d7 {+ I& Q4 Y" F - yield();% \! W* f9 n5 i' c
- });; N; w# Z4 B5 x8 g# M
- ( I7 n/ a# [ x" B
- digitalWrite(2,0);
$ ]6 Q$ g; n9 H4 ^/ I - mainAction();; C1 `5 U! a1 ]3 V+ b
- if (digitalRead(0)){6 J2 j6 m! \& h: e# N8 r
- ESP.deepSleep(0);
2 s& v5 u7 q' O. [8 Z) {0 b - } else {; n+ ^9 [. K* B7 j. i9 Q# r, q
- server.begin();
4 n4 w* M. P. B - }9 Z4 n7 O, C% l1 C
- }$ B5 e7 L) D- @* V: y
- void loop() {
* A9 ^% X& ~ i1 X4 T7 n - server.handleClient();' f- [! ]: b! Y# s
- delay(1);
" s6 h; k/ b! p. T' a - }
: @7 M! S9 B& U: K! R+ s7 |7 V - String doGet(String url){
( U1 {1 N: o1 w# `+ S1 s% Z( G - if ((WiFiMulti.run() == WL_CONNECTED)) {
$ O+ T' |1 y! ]! D) t1 _' s - HTTPClient http;$ _. k' F1 C/ ~
- Serial.println("[HTTP] begin...");
; K! I7 Q" G/ x2 H - if (url.startsWith("https")) {
! M4 _* y1 W1 m6 Z5 s - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");2 u7 X+ x" t/ U( O
- } else {3 w- S2 d- t& L; L7 E8 v
- http.begin(url);
& j3 Q" q0 k( W& H) _ - }
, T& P. I, S6 W3 n, A - Serial.println("[HTTP] GET...");
- l) Y; u9 Y2 K/ F; M( [ - int httpCode = http.GET();7 z6 b. L. q# f: ?8 e
- if (httpCode > 0) {
: n) ^" R' W! E) A* K& X - Serial.printf("[HTTP] code: %d\n", httpCode);6 k3 J y4 C9 d: R4 w7 \/ ^
- if (httpCode == HTTP_CODE_OK) {/ N( g y* o0 \8 O$ p9 A
- String payload = http.getString();
4 J% m' [# P# P: X - Serial.println(payload);( _# u: x! S& O) ^" j0 y" r
- Serial.print("\r\n");$ b, G- v3 h6 e2 y/ t* O/ ]( ]
- return payload;
! a3 @: s' z/ K) L2 N - }- @8 g A3 j" B8 O
- } else {
" U' s# n! c% @6 }% }5 n - Serial.printf("[HTTP] GET... failed, error: %s\n",0 C4 {8 g' N Y' u: \
- http.errorToString(httpCode).c_str());$ u2 B# n5 m" L Y: i
- }
) H) T* A b' N - http.end();
' R+ V+ Y$ {5 r+ x4 A3 C" ]8 a - return "";+ P2 z- R7 y8 P
- }8 P- m0 w* {/ G4 `. l' A. S8 M
- }! ~* L% J: [3 M1 G3 {$ p
- void mainAction() {
0 ^8 ~ d& ~( d: A9 W - // 发送请求7 |1 e8 Q8 p! h! V% B" F& Z5 ?
- doGet("http://google.cn");5 }9 g6 k+ l9 Q' H3 a
- }% s# J* ^9 ^4 v$ B: M2 S
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