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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 Y0 `% O3 y( P- #include <ESP8266HTTPClient.h>) B- M5 ]9 P2 S
- #include <ESP8266WiFi.h># {5 X9 m7 q- f# y5 K
- #include <ESP8266WiFiMulti.h>
! n! \# q2 j* I - #include <ESP8266WebServer.h>
. P3 g) F0 x) b v n' S% _ B% x. B5 r - #include <arduino.h>' t4 L# c3 p8 G! c+ ]+ D; S; P
- ESP8266WiFiMulti WiFiMulti;
% B7 A9 w1 ^/ U; O, e+ H - ESP8266WebServer server(80);
8 W7 E5 i- U# p# N# Y$ h - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";! q# Z8 B5 X1 {* ~& a
- ADC_MODE(ADC_VCC);
0 A0 ?" T# a4 k5 M' U - void setup() {
. I8 u9 `" k' H( x/ a - Serial.begin(115200);
4 x* ]) @ s' e3 [; E3 y: C- |! Y - Serial.print("\r\n\n");
3 J7 k! H4 s, a1 W7 n" h# |4 K0 W - pinMode(2,OUTPUT);1 E+ @0 X4 [7 n3 N5 |& [0 b
- // WIFI3 v" |7 F, B2 n [
- WiFi.mode(WIFI_STA);1 u8 ~ q; s# S1 S) G
- WiFi.hostname("Sparkle");
1 r( U/ g, S" Q; V - WiFiMulti.addAP("wifi ssid", "wifi password");
u! n5 V c. U- s. o- ? - int tryNum = 15;! g2 P& h$ ^# a# O) e
- Serial.print("Connect WiFi");
& M, q: l' n1 v& {/ E* v - while (WiFiMulti.run() != WL_CONNECTED) { f" M3 ~4 W0 g- n
- digitalWrite(2,0);% ^8 L- L* }) E+ B3 W
- delay(200);# f4 n4 e* I( O2 i
- digitalWrite(2,1);1 U, J. v% P! e# H' @+ s( u
- delay(300);
3 }4 N, L$ a, C+ t! v$ v [ - Serial.print(".");
; ~* N7 s- b2 j% }: g0 m - tryNum--;; N: J# S* F. r
- if (tryNum == 0) {; x5 X6 K7 `" @2 l8 o8 w* V! a
- // 1min
# s: ?3 v r S! i* M0 f- j - // ESP.deepSleep(60e6);
( M) e4 Z0 P4 O( R, ?- b - ESP.deepSleep(0);
0 }3 ]. A# Y0 C) Q+ n% Z0 e - }
( a4 R" b$ U) _5 D6 V9 V - }) e5 e$ N' V: e6 \ B1 }4 y& F, Y
- Serial.print("\r\n");4 a& `+ {& x& A# H
- digitalWrite(2,1);
# x0 \/ ]& A: ^+ f. F - Serial.print("IP address : ");
& _+ T; m, t; c$ ^& ^ - Serial.println(WiFi.localIP());3 X2 A7 T! H4 z
- server.on("/", HTTP_GET, [](){
( [; e. L5 t4 \! }; C! l& ^ - server.sendHeader("Connection", "close");
1 E* V" h. Y5 N e - server.send(200, "text/html", serverIndex);
% H- I/ l/ d1 K. T5 H - });
& }0 F% V k- c4 T& Q - server.on("/update", HTTP_POST, [](){
' ?1 M( K& ?# g% H - server.sendHeader("Connection", "close");0 o' T" ^4 f" [* w6 z
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");' f9 q. p& ~& L0 b- r) x- D: g
- ESP.restart();) a g4 m- y' l6 Y+ m" X/ j A
- },[](){
7 _: v% U3 y( w/ W/ L - HTTPUpload& upload = server.upload();
) r) D- K9 t+ `) e8 u# d4 Z - if(upload.status == UPLOAD_FILE_START){! X- E6 n* T, l+ p. ]! l$ o- F c
- Serial.setDebugOutput(true);+ u; A6 g, Y; q4 s# x
- Serial.printf("Update: %s\n", upload.filename.c_str());2 I+ t, o& ?. T3 G
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
# _0 f# d" i4 T6 K% K - if(!Update.begin(maxSketchSpace)){
! S/ c6 y7 n5 @4 O2 y8 L- O2 F+ x, t - Update.printError(Serial);# u9 o) M& Z: B* e
- }
- d3 h. \8 O* }- S5 Y6 n: G! k/ S - } else if(upload.status == UPLOAD_FILE_WRITE){; V2 ^1 `! f! u: A- q$ t; W
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){! S5 ?, ]0 i3 _: }( a
- Update.printError(Serial);
- h- ]5 }) u. {' }( T: H - }
7 A N% F2 c* s, \' q2 u - } else if(upload.status == UPLOAD_FILE_END){
3 G4 J1 k" N$ E - if(Update.end(true)){3 O) t" i \9 u
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);" H' |( N9 V7 s2 V
- } else {8 x; ~6 }& X, r; N& w% z/ D$ G
- Update.printError(Serial);3 J- x' U' I, v) a% X5 X
- }
6 m Q+ B+ A# A - Serial.setDebugOutput(false);
7 I( H; j% n# V - }1 o- _7 P5 Q9 C# ?
- yield();0 W& I! X! L6 V9 u
- });; M% w% F5 T3 F& U
- / z4 l {+ t4 J$ M# m9 G. m. K2 t% g0 U
- digitalWrite(2,0);
`9 W& @' x7 N* _+ |; j8 L m1 D - mainAction();
! }4 K$ L& H* F; j: W - if (digitalRead(0)){% p b/ X& I# j! V" `9 d; o# j
- ESP.deepSleep(0);
$ f9 t+ x5 b4 C9 J7 D - } else {3 c5 w* U- p* s4 d
- server.begin();
# {8 U: r2 D- E- l" x1 }; ^ - }
, k( P: @+ y$ _4 y" L; F - }, l. V# w# t9 ~) k: h
- void loop() {8 l+ k+ W0 u. [: q1 a9 [
- server.handleClient();
4 y' ~1 t( A- u, Y+ L& b, y - delay(1);
* N: W: M" w- S2 _6 j, H4 i5 d9 l1 A - }( b/ J2 V3 x" c
- String doGet(String url){
. I8 `) B0 R4 S' t - if ((WiFiMulti.run() == WL_CONNECTED)) {
" ~" U& g/ ?& [: r - HTTPClient http;
" J5 r) X5 G# t5 r. |: e, C - Serial.println("[HTTP] begin...");- a8 W7 \. v% d3 z8 {% Y3 R# E
- if (url.startsWith("https")) { t' K; ?3 ?" S j0 F! x
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");; |9 @ x2 f5 I; {. W
- } else {: Y8 ^- X& V0 C+ Q
- http.begin(url);
% ?" v" m9 z" R+ T2 Y - }
8 O. @' o* j9 T2 O7 y1 ^: J - Serial.println("[HTTP] GET...");4 ~& O# i3 _" \5 D/ N5 {
- int httpCode = http.GET();$ H6 L j% [; g p
- if (httpCode > 0) {+ p5 F9 \8 e" v- L9 H% r
- Serial.printf("[HTTP] code: %d\n", httpCode);
, E! j- [+ H8 |4 }& f - if (httpCode == HTTP_CODE_OK) {' n2 S$ w* x9 W. Y1 A. T9 C
- String payload = http.getString();( P* q4 x0 r" r7 X/ ]6 t8 w o
- Serial.println(payload);* ^0 t" _* y. R8 N
- Serial.print("\r\n");& n. \7 M2 `. j
- return payload;
7 H. O, R) ] A) i; i - }
; n1 L9 w6 ?! t$ z3 ?- @ p - } else {1 k' ]2 U! Z2 k; K5 J! N
- Serial.printf("[HTTP] GET... failed, error: %s\n",
+ ~3 N8 q" b( B n6 O. R, | - http.errorToString(httpCode).c_str());- h Z) g$ f" _6 }/ t
- }
l1 D7 U( x6 [* L - http.end();
( a* Q& Q: |/ A; Y- u& F( i - return "";
- H( H* m: J1 X% @ - }
& b, W5 c) M& n/ S1 Q. P - }- R% T* C7 [9 s) w" Y- s
- void mainAction() {
" V3 F1 s0 H1 ~' L9 p' p3 ` - // 发送请求
) D0 D5 N$ V( ]7 W - doGet("http://google.cn");7 t Q8 h. c) Q9 F
- }7 F( E. d" |& R' }" C& }
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